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Product catalogue 1 for Frese A/S 2012 · www.frese.euProduct catalogue12- At the heart of Flow control

www.frese.euFrese OPTIMA Compact - pure intelligenceHigh performance with a compact solutionFrese OPTIMA Compact is the new generation of dynamic control valves, whichsets new standards for regulation. With its compact design, the valve is very easyto install and use in heating and cooling systems such as applications with Fan-coilunits, cooling / heating baffles and mixing circuits.Energy saving valveFrese OPTIMA Compact combines an externally adjustable automatic balancingvalve, a differential pressure control valve and a full authorit modulating controlvalve.This valve makes it simple to achieve 100% control of the water flow in thebuilding, while creating high comfort and energy savings at the same time.For technical details: www.frese.euContactsUK Inner front JAN 12Denmark - Main Office United Kingdom United Arab Emirates Australia & New Zealand ChinaFrese A/S Frese Ltd Frese Middle East Frese Australasia & New Zealand Frese Valves (Ningbo) Co., Ltd.Tel: +45 58 56 00 00 Tel: +44 (0) 1704 896 012 Tel: +97 143 417696 Tel: +61431 794 414 Tel: +86 (21) 5110 3212Germany Turkey Saudi Arabia South AfricaFrese Armaturen GmbH Frese Eurasia DIS TIC. LTD. STI. Frese Middle East Frese South AfricaTel: +49 (0) 40 611 653-0 Tel: +90 216 580 93 60 Tel: +966 2 6608230 Tel: +61431 794 414

IndexHEATING & COOLING APPLICATIONSDS/EN ISO 9001:2008 CertificateIntroduction to Dynamic Balancing1Flow CartridgesQuickguideALPHA Cartridges2Dynamic Balancing Valves(Cartridge Solution)FRESE ALPHA3Dynamic Balancing Valves(Externally Adjustable)FRESE S4Dynamic Balancing & Modulating Control Valves(Externally Adjustable )FRESE OPTIMAFRESE OPTIMA COMPACT5Dynamic Balancing Valves & On/Off Control Valves(Cartridge Solution)FRESE EVA6Complete Solutions for Balancing and Temperature ControlFRESE MODULA7Differential Pressure Control ValvesFRESE PVFRESE PVSFRESE YDF-2F8AccessoriesDOMESTIC WATER APPLICATIONS9Thermostatic Circulation Valves CIRCON +TEMCON +10Mixing ValvesMIXCON11UK Index JAN 12Project Referenceswww.frese.eu12

TechnotePage 1 of 8IntroductionScopeThis section contains an account of why it is necessary tobalance a water distribution system for the distribution ofheating or cooling effects, the considerations that shouldbe made before the system is designed, the result of balancingand the difference between a static and a dynamicbalancing valve.What is a balanced system??Solutions for individual requirements1Definition:A distribution system is in balance when the flow in thewhole system (through the component terminal lines,distributing lines and main distributing lines) correspondsto the flow rates that were specified for thedesign of the system.The dimensioned ”hydraulic” condition of operation can besimulated by means of the opening of all the valves regulatingthe flow depending on the temperature (room temperature,outdoor temperature or medium temperature)either as manual radiator valves, self-regulating thermostaticvalves or electrically actuated valves.In practice it is recommended that balance is established bymeans of a number of balancing valves that can be pre-setindividually to an assessed orifice dimension. Together withthe rest of the system they will then establish the exact flowresistances to ensure a correct distribution of the flowingmedium.Figure 2.1 shows an outline of a minor section of a balancedwater distribution system. Referring to the figure belowthe distribution system is in balance when the systemcontains a number of regulation valves that have beenpre-set to be mutually dependent so that the flow throughthe component terminal lines, distributing lines and maindistributing lines corresponds to the flow rates that werespecified for the design of the system.Figure 2.1 A balanced section with a distributing line for three terminals.UK Intro AUG 11www.frese.eu

TechnotePage 2 of 8IntroductionIn an analogue electric system the balancing valves arecomparable with a variable resistance, and the resistance ofthe pipes with the corresponding wiring resistance, and theeffective heating-/cooling surfaces with a load resistance(Fig. 2.2).The distribution of the electric power through the componentload resistances, distributing lines and main distributinglines, depends on the distribution of the resistance inthe circuit, similarly to a water distribution system.The need for BalancingIf the correct balancing of the system has not been established,this will result in an unequal distribution of the flow, sothat there will be a surplus effect in some of the terminals,whereas the effect will be inadequate in others. The resultof this will be that the wanted heating/chilling will not beensured in all parts of the installation.In practice it is not possible to make a correctly balancedsystem by manipulation of the piping or alteration of thepipe dimensions only.Only a correct adjustment of the balancing valves shown infigure 2.1 will ensure the correct distribution of the flow inthe system.Design ConsiderationsThe engineer in charge of the design and installation of asystem should aim at:• Substantial operating effectiveness• Achievement of the required comfort at the lowestoperating costs possible• Avoiding unnecessary waste of energy resources.For the design and selection of equipment for the balancingand control of a system the following should be taken intoconsideration:(A) Type of application(B) Type of the building in question(C) The required room temperature/comfort(D) Type of the hot domestic water supply(E) Acceptable deviations from the comfort parameters(F) Minimization of the primary energy(G) Application of heat recycling(H) Economic factorsThe result of (C), (E) and (F) is very much dependent on thecorrect distribution of the flow in the system. Thereforethe quality of the balancing should meet the the requiredcomfort and energy efficiency.The quality of the balancing is partly dependent on the typeof the required balancing valves (static versus dynamic valves,ref. the following section), compared with the requiredadjustment method, and partly the design of the requiredcomponents for the verification of the flow in the system.The following quality parameters should be specified duringthe phase of design:• Type of balancing valves• Adjustment method• Verification of flow, where and how?• Acceptable deviations of the flowUK Intro AUG 11Figure 2.2 An analogue electric systemwww.frese.eu

TechnotePage 3 of 8IntroductionThe result of BalancingA satisfactorily balanced installation will show the followingresults:• Correct flow in boilers and chillers• Correct distribution of flow and effect in the whole system• Compatibility between all flow rates in primary and secondarylinesThese results will ensure the following benefits:• The room temperature is adjustable within the specificdeviations• Energy saving as a result of the favourable conditions ofthe requipment that controls the energy transfer• Achievement of the required indoor climate.Why are balancing Valves required?We answer that question on the basis of figure 2.3The figure shows a schematic outline of a simple installationthat contains a boiler/chiller, three identical terminals with thesame flow requirement, and a pump to make the heat transfermedium, i.e. water or water/glycol circulate in the system. Thetop half of the diagram represents the pressure distributionthroughout the schematic layout shown in the lower half ofthe diagram. The branch ’nodes’ are indicated on both thedistribution diagram and the schematic by the smae lettering.In the piping there will be friction between the flowing mediumand the pipe wall. This frictional loss makes the pressuredecrease along the pipe in the direction of the flow. This willbe seen from the falling pressure line between the branchingpoints.1Figure 2.3 Simple installation and its pressure distributionUK Intro AUG 11www.frese.eu

TechnotePage 4 of 8IntroductionThe pressure drop Δp1 is referred to as the ’index circuit’.The index circuit is the circuit that has the highest resistance toflow. It is normal for this to be the circuit most remote from thepump.This pressure drop can be found by means of the equationΔp1 = R 1× (q v× Þ) n , in which the resistance of the terminal R1and the wanted flow q v are known values.The pressure drop across the three identical terminals will bethe same, provided the same flow is required through all ofthem, i.e. Δp1 = Δp2 = Δ p3.In order to bring about this identical pressure drop across theterminals and associated piping it is necessary to connectanother resistance in series with the resistances of the terminals,so that the residual pressure drop between branchingpoints BF and CG can be absorbed.If the installation in question is not equipped with balancingvalves after terminals (2) and (3), the flow through the threeterminals will vary so that terminal (3) will be exposed to themajor flow, terminal (2) to a smaller flow, and terminal (1) tothe smallest flow. In that case the system will not be in therequired state of balance.Figure 2.4 shows the distribution of the pressure drop betweenbranching points BF. From this you will see that theadjustment of the regulating valve to the required resistancevalue has to be carried out with regard to not only the terminalbut also the connecting pipes.The final adjustment is usually carried out by indirect measurementof the flow through the regulating valve (ref. chapter6) simultaneously with measurement of the flow throughterminal (1).The regulating valve to terminal (2) is to be adjusted to ensurethat the proportion of the measured flow rates through terminals(1) and (2) is the same as the one between the indexedflow rates between the two terminals.Hereafter the valve is adjusted to terminal (3) to ensure thatthe proportion between the measured flow rates through terminals(3) and (2) is the same as the one between the indexedflow rates between the two terminals.This adjustment method is called the ’proportional method’.Figure 2.4 Absorbing ’residual’ pressureUK Intro AUG 11www.frese.eu

TechnotePage 5 of 8IntroductionThe Difference between a Static and a Dynamic Balancing ValveUsually you will not find an indication of the resistance valueof a valve in valve catalogues and data sheets. On the otherhand, the producer always states a flow coefficient referredto as kv or cv (American products). This is also called the flowcoefficient of the valve.The flow coefficient of kv is defined to be the flow of water(density 1 kg/liter) through the valve, when the differentialpressure across the valve is 1 bar. The designation of this flowis m 3 /hour.The flow coefficient of cv is defined as the flow of water (density1 kg/liter) through the valve, when the differential pressureacross the valve is 1 psi (lb/inch2). The designation of this flowis GPM (US gallon/min.).Hereafter the mathematic coherence between the flow andthe differential pressure of the valve can be expressed as follows:q v= K v√Δ/ρ rq in v m3 /hour when Δp is in bar (gauge)As regards the 2-position and balancing valves, the indicatedflow coefficient of kv refers to the completely openvalve.A feature of a static circuit balancing valve is that the openorifice area ( kv value) can be changed manually and fixedinto a static value. The kv value can now be obtained by referringto the hand wheel position in relation to the calibrationgraph of the valve.The valve should be equipped with 2 pcs. isolation testplugs to which the measuring equipment for indirect flowmeasurement can be connected.The valve can be pre-adjusted on the basis of a calculatedpressure distribution in the whole HVAC installation. Pleasenote that the calculation of large, complex installations mayinvolve a considerable inaccuracy. Further, the valve can bepre-adjusted on the basis of an adjustment after the installation,e.g. according to the ’proportional method’.1q v= c v√Δ/ρ rq in GPM (US) when Δp is in psivA dynamic circuit balancing valve is a new balancing valvethat was introduced on the market within the last fewyears. One of its features is that it can be pre-adjusted to agiven flow and be locked to ensure this flow.Figure 2.5 The valve features of a static circuit balancing valve and a dynamic circuit balancing valve respectively at a givenpre-adjustment value.UK Intro AUG 11www.frese.eu

TechnotePage 6 of 8IntroductionThe valve is an automatic regulator valve that with a referenceto the differential pressure automatically adjusts tothe kv value necessary to maintain the required flow. Thekv value of the valve automatically compensates for anychanges of the differential pressure, so that the flow willnever exceed the pre-set flow.These valves are available in types that have been calibratedin the factory to the rated flow, and in types the indexedflow of which can be pre-adjusted by the user before orafter the installation of the valve in the system, or from theoutside as the system is working.The valve can be used on the basis of the calculated flowwithout regard to the distribution of pressure in the system.Figure 2.5 illustrates the difference between the static andthe dynamic application in the form of flow variation as afunction of the differential pressure across the valves at agiven pre-adjustment.As will be seen from the chart, the flow through the staticvalve will increase as the differential pressure increases,and decrease as the differential pressure falls, whereas thedynamic balancing valve will maintain a constant flow (withinthe regulation range) independently of the differentialpressure within the dynamic balancing valve.Further, please note that the indexed flow (100 %) througha static balancing valve will not be achieved unless the differentialpressure across the valve is equal to the indexeddifferential pressure Δp.When are Flow Measurement Devices equired?Static Systems:During the adjustment it should be possible to measure theflow through each terminal (coil in air-condition, not radiatorsin heating systems), distributing line, main distributingline and supply line.The measurements will typically be carried out as an indirectmeasurement, i.e. measurement of the differential pressureconverted into a flow value in relation to the k v valueof the measured device. The measurements are carried outacross each circuit-balancing valve with the k v value relativeto the valve setting and the associated flow chart.The accuracy of the measured flow is not likely to be betterthan +/- 25 % dependent on the hand wheel position. Thisinaccuracy should be taken into consideration in connectionwith the verification of the flow. Still, it is of no particularimportance to the relative comparison between theflow through the individual terminals and distributing linesduring the balancing procedure.Dynamic Systems:Dynamic valves will typically balance the system at an accuracyof +/- 5 % of the rated flow.So, as direct measurements involve a degree of accuracy of+/- 25 %, it will be inappropriate to verify the flow throughthe individual terminals.Instead, measurement/verification of the flow in the supplyline is recommended.For verification of the flow in the supply line it is recommendedthat a fixed orifice device is used with a specified accuracywhich is +/- 5% above that of the measured flow.Where are Balancing Valves required?Figures 2.6 and 2.7 show a section of the same system, inwhich figure 2.6 has been designed as a static system, andfigure 2.7 as a dynamic system. The section contains onesupply line for 3 main distributing lines, each of which has3 distributing lines with 3 terminals each (totally 27 terminals).UK Intro AUG 11www.frese.eu

TechnotePage 7 of 8Introduction1Figure 2.6 Water distribution system, static balancingFigure 2.7 Water distribution system, dynamic balancingIn the static system each terminal has to be balanced in9 groups of 3 terminals each. Hereafter the 9 terminalsections have to be balanced in 3 groups of 3 distributinglines each. After that the 3 main distributing lines have tobe balanced. And finally the distributing line is adjusted toensure the total design flow.This balancing procedure requires one balancing valve perterminal, one balancing valve per distributing line, one balancingvalve per main distributing line and one balancingvalve in the supply line.In the dynamic system the individual terminals can be adjustedindependently of each other. This simply requires onebalancing valve per terminal.UK Intro AUG 11www.frese.eu

TechnotePage 8 of 8IntroductionWhy use Dynamic Balancing instead ofStatic Balancing?The adjustment of a dynamic system is quick and easy. Allthat is needed is the right pre-adjustment/balancing valvespecified for the rated flow. There is no need for measurementsfor making comparisons between the flows of theindividual balancing valves.When the features of an installation are to be calculated, theonly uncertain factor will be any inaccuracy in the calculatedflow rate. When a dynamic balancing valve is used theuncertainty regarding the distribution of pressure in theinstallation and consequently the calculated kv values ofthe balancing valves is eliminated.Balancing valves are only needed for the individual terminals.There is no need for balancing valves in the distributionlines, main distribution lines and supply lines.The individual terminals are 100 % safe from overflow withoutregard to the load distribution in the installation andindependent of the dynamic load variation in the installation.In an properly balanced static system overflow (up to300-400 %) may occur through some of the terminals.The rated flow can be changed in one or more sections ofthe installation without upsetting the balance in the restof the system. If the dimensional basis of the whole systemturns out to be wrong after the installation, a static systemcan only be re-adjusted if the whole installation is re- adjusted.From the foregoing, the following benefits of dynamicbalancing can be stated:• Quick and easy adjustment• Independent of errors/unreliabilities in the calculateddistribution of pressure in the installation.• Fewer balancing valves• 100 % safe from overflow• Unproblematic re-adjustments• More effective adjustment• Great flexibility if the system is changed after theinstallationDue to these benefits the features of the system design willtypically be as follows:• Cheaper installation• Better comfort• Greater flexibility• More economical operationThe result of the adjustment is better when compared tostatic balancing, because the rated flow is controlled at anaccuracy of +/- 5%.After the installation the system can be changed/extended/restored without regard to the changes of the balance inthe existing part of the system. In a corresponding staticsystem this would often involve a change of the total designof the system.UK Intro AUG 11Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

Quick reference - combining cartridges and housingsFor Flanges ALPHA DN50 3.820 - 45.000 l/hFor Flanges ALPHA DN65 3.820 - 45.000 l/hFor Flanges ALPHA DN80 3.820 - 45.000 l/h2Frese ALPHA cartridgesCartridge typ 10, 11, 20 Cartridge typ 30, 40 Cartridge typ 50, 60Female/Female ALPHA DN15-25 25 - 2.448 l/hFemale/Female ALPHA DN25L-50 677 - 11.354 l/hFixed end female/union ALPHA DN15-25 25 - 2.448 l/hFixed end female/union ALPHA DN25L-40 677 - 11.354 l/hFor unions with actuator EVA DN15/20/25 25 - 2.448 l/hFor couplings with actuator EVA BASIC DN15 25 - 2.448 l/hDK Frese Quick guide APR 10For Flanges ALPHA DN100 3.820 - 90.000 l/hFor Flanges ALPHA DN125 3.820 - 135.000 l/hFor Flanges ALPHA DN150 3.820 - 180.000 l/hFor Flanges ALPHA DN200 3.820 - 315.000 l/hFor Flanges ALPHA DN250 3.820 - 540.000 l/hFor Flanges ALPHA DN300 3.820 - 675.000 l/hFor Flanges ALPHA DN350 3.820 - 855.000 l/hFor Flanges ALPHA DN400 3.820 - 1.170.000 l/hFor Flanges ALPHA DN450 3.820 - 1.485.000 l/hFor Flanges ALPHA DN500 3.820 - 1.800.000 l/hFor Flanges ALPHA DN600 3.820 - 2.520.000 l/hFor Flanges ALPHA DN800 3.820 - 3.825.000 l/h

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TechnotePage 1 of 7Frese ALPHA cartridgesApplicationFrese ALPHA cartridges is used in heating and coolingsystems for the distribution of flow in various sections ofthe system.The dynamic balancing valve ensures easy and reliablebalancing of the system, regardless of any fluctations in thedifferential pressure of the system.2Frese ALPHA cartridges limits maximum flow in the system,and ensures the most economical operation.Can be used in both variable and constant flow systems.From small size valves (DN15) to big wafer types (DN800),from small heating units to district cooling applications,there is a Frese ALPHA Cartridge that guarantee the specifiedflow.Benefits• Quick and easy selection as only flow data are required.• Security that the specified flow will not be exceeded.• Easy to install according to pre-defined flow.• Minimized commissioning time due to automatic balancingof the system.• High comfort for the end-users due to right balance ofthe hydraulic system.Features• Removable cartridge solution simplifies flushing procedure• No minimum straight pipe lengths required before orafter the valve.• Built-in optional P/T plugs for needle system.• Minimized friction and noise due to the patentedcartridge design based on the metal-rubber diaphragm-metalcontact.• The valves automatically find the hydraulic balanceregardless of pressure fluctations in the system.UK Frese ALPHA cartridges JUL 09• No main circuit or branch balancing valves needed inthe system.• Improved response to water hammer due to the chockabsorption by the rubber diaphragm of the cartridge.www.frese.eu

TechnotePage 2 of 7Frese ALPHA cartridgesFunction Frese ALPHAThe following applies to all flow control valves:Q = Kv * √ΔpQ = Flow (m 3 /h)Kv = Opening areaΔp = Differential pressure (Bar)The Frese ALPHA cartridges, react to pressure fluctuationsso that the differential pressure across the pre-adjustmentunit is kept constant.In that way a max. flow limit is ensured in accordance withthe design.Simplified outline ALPHAFrese ALPHA ventilForindstillings blændeDifferenstrykenhedSchematic view of the flow development for cartridge type 40, Frese no. 49-44176. Nominal flow 1.388 l/s / 4.816 l/h. The cartridgeenters the pressure range at 23 kPa and maintains the flow at a constant level all the way till 600 kPa.Indication of flow rate on the orifice plateUK Frese ALPHA cartridges JUL 09A four-digit number on the orifice plate is identical with thelast four digits in the Frese number. The cartridge can beidentified by means of this number and the correspondingflow rate can be read from the above flow rate tables.High PressureFrese no.Flow[gpm]Flow[l/s]Min.ΔP[kPa]49-11740 3.52 0.222 1649-11745 3.83 0.242 1949-11750 4.12 0.260 2149= HP High Pressure50= Low Pressurewww.frese.eu

→TechnotePage 3 of 7Frese ALPHA cartridgesCartridge operationWhen the pressure increases the spring will be compressedand thereby the piston will reduce the outlet area and viceversa. The result is a constant flow rate through the valve,independent of pressure fluctuations.Flow calculationThe flow through the valve can be identified by measuring thedifferential pressure (Δp) across the valve:If the measured differential pressure is above the minimum Δp,the flow is the one stated on the graph for the valve.If the measured differential pressure is below the minimum Δp,the flow can be found by using the formulas below.2Flow CalculationQ = Kv · √ΔpQ = Kv · 100 · √ΔpQ = Kv · √Δp36Q = m3/hΔp = BarQ = l/hΔp = kPaQ = l/sΔp = kPaFrese dynamicbalancing valvesDN15 / 20 / 25→→ →DN25L - DN50→DN50 - DN800for Flanges→Cartridgetype 10, 11 and 200.007 l/s - 0.680 l/s25 l/h - 2448 l/hCartridgetype 30 and 400.188 l/s - 3.154 l/s674 l/h - 11355 l/hCartridgetype 50 and 601.061 l/s - 12.5 l/s3820 l/h - 45000 l/hUK Frese ALPHA cartridges JUL 09www.frese.eu

TechnotePage 4 of 7Frese ALPHA cartridgesTechnical dataCartridge Material:DZR Brass CW602N (Low pressure cartridges)DZR Brass CW 602N Tin/nickel plated (High pressure cartridges)AISI 304 (Wafer cartridges)O-rings: EPDM 281Spring:Stainless Steel 1.4310 (Low pressure & High pressure cartridges)AISI 316 (Wafer cartridges)Diaphragm:HNBR (Low pressure cartridges)HNBR reinforced (High pressure cartridges)Medium Temperature: -20 to + 120 0 CDimensionsØ 75Ø 49Ø 28406499Specification textUK Frese ALPHA cartridges JUL 09High pressure cartridgesDN15 - DN50:Low pressure cartridgesDN15 - DN50:High pressure cartridgesDN50 - DN800:The cartridge (for automatic balancing valve) should be made of tin/nickel plated brass; Thereshould be only one differential pressure control range up to 600kPa; The flow rate should bedefined by replaceable orifice plate. The diaphragm should be made of reinforced HNBR, theO-rings should be made of EPDM.The cartridge (for automatic balancing valve) should be made of brass; There should be only onedifferential pressure control range up to 350kPa; The flow rate should be defined by replaceableorifice plate. The diaphragm should be made of HNBR; the O-rings should be made of EPDM.umber. The cartridge can be identified by means of this number and the corresponding flow ratecan be read from the above flow rate tables.The cartridge for automatic balancing valve (flanged housing) should be made of stainless steel;There should be only one differential pressure control range up to 600kPa; The flow rate shouldbe defined by replaceable orifice plate. The diaphragm should be made of reinforced HNBR, theO-rings should be made of EPDM.www.frese.eu

TechnotePage 5 of 7Frese ALPHA cartridgesCartridges for valves from DN15-DN25High PressureFrese no.Max. Δp 600 kPaLow PressureFrese no.Max. Δp 350 kPaCartridge type 10Flow[l/h]Flow[l/s]Flow[gpm]Min.ΔP[kPa]Kv50-11150 25 0.007 0.11 7 0,0950-11170 36 0.010 0.15 7 0,1450-11190 43 0.012 0.20 7 0,1649-11210 50-11210 55 0.015 0.24 7 0,2149-11230 50-11230 75 0.021 0.33 8 0,27249-11260 50-11260 84 0.024 0.39 9 0,2849-11290 50-11290 104 0.029 0.46 10 0,33→49-11300 50-11300 114 0.032 0.50 10 0,3649-11320 50-11320 129 0.036 0.57 11 0,3949-11350 50-11350 154 0.043 0.68 11 0,46Type 10, 11 and 2049-11370 50-11370 175 0.049 0.77 12 0,5149-11400 50-11400 204 0.057 0.90 12 0,5949-11430 50-11430 241 0.067 1.06 12 0,7049-11460 50-11460 279 0.078 1.23 12 0,8149-11490 50-11490 320 0.089 1.41 13 0,8949-11510 50-11510 350 0.097 1.54 13 0,9749-11540 50-11540 400 0.111 1.76 13 1,1149-11570 50-11570 477 0.132 2.10 14 1,2749-11620 50-11620 545 0.151 2.40 14 1,46Cartridge type 1149-11725 50-11725 615 0.171 2.71 14 1,6449-11730 50-11730 670 0.186 2.95 14 1,7949-11735 50-11735 736 0.204 3.24 14 1,9749-11740 50-11740 799 0.222 3.52 16 2,0049-11745 50-11745 870 0.242 3.83 19 2,0049-11750 50-11750 936 0.260 4.12 21 2,04Cartridge type 2049-20700 50-20700 1020 0.283 4.49 22 2,1749-20740 50-20740 1081 0.300 4.76 22 2,3049-20770 50-20770 1195 0.332 5.26 22 2,5549-20820 50-20820 1335 0.371 5.88 23 2,7849-20860 50-20860 1483 0.412 6.53 23 3,0949-20880 50-20880 1581 0.439 6.96 23 3,3049-20920 50-20920 1774 0.493 7.81 24 3,6249-20940 50-20940 1833 0.509 8.07 24 3,7449-20990 50-20990 2080 0.578 9.16 25 4,1649-21030 50-21030 2251 0.625 9.91 26 4,41UK Frese ALPHA cartridges JUL 0949-21060 50-21060 2319 0.644 10.21 27 4,4649-21090 50-21090 2448 0.680 10.78 28 4,63www.frese.eu

TechnotePage 6 of 7Frese ALPHA cartridgesUK Frese ALPHA cartridges JUL 09Cartridges for valves from DN25L-DN50High PressureFrese no.Max. Δp 600 kPaLow PressureFrese no.Max. Δp 350 kPaCartridge type 30Flow[l/h]Flow[l/s]Flow[gpm]Min.ΔP[kPa]49-33073 50-33073 674 0.188 2.97 12 1,9549-33082 50-33082 861 0.239 3.79 12 2,4949-33089 50-33089 1020 0.283 4.49 12 2,9449-33094 50-33094 1136 0.315 5.00 12 3,2849-33096 50-33096 1190 0.331 5.24 12 3,4449-33098 50-33098 1272 0.353 5.60 13 3,5349-33102 50-33102 1349 0.375 5.94 13 3,7449-33107 50-33107 1485 0.413 6.54 13 4,1249-33111 50-33111 1567 0.435 6.90 14 4,1949-33112 50-33112 1631 0.453 7.18 14 4,3649-33118 50-33118 1815 0.504 7.99 14 4,8549-33124 50-33124 2001 0.556 8.81 15 5,1749-33125 50-33125 2044 0.568 9.00 16 5,1149-33129 50-33129 2171 0.603 9.56 16 5,4349-33132 50-33132 2271 0.631 10.00 17 5,5149-33135 50-33135 2380 0.661 10.48 17 5,7749-33138 50-33138 2498 0.694 11.00 18 5,8949-33142 50-33142 2639 0.733 11.62 18 6,2249-33148 50-33148 2871 0.797 12.64 19 6,5949-33156 50-33156 3191 0.886 14.05 21 6,9649-33161 50-33161 3407 0.946 15.00 22 7,2649-33163 50-33163 3486 0.968 15.35 22 7,43Cartridge type 4049-44148 50-44148 3634 1.009 16 20 8,1349-44152 50-44152 3681 1.023 16 21 8,0349-44156 50-44156 4088 1.136 18 21 8,9249-44164 50-44164 4315 1.199 19 21 9,4249-44168 50-44168 4542 1.262 20 22 9,6849-44173 50-44173 4769 1.325 21 22 10,1749-44176 50-44176 4996 1.388 22 23 10,4249-44182 50-44182 5450 1.514 24 24 11,1249-44191 50-44191 5905 1.640 26 25 11,8149-44194 50-44194 6360 1.767 28 26 12,4749-44200 50-44200 6813 1.893 30 27 13,1149-44205 50-44205 7267 2.019 32 28 13,7349-44211 50-44211 7721 2.145 34 30 14,1049-44217 50-44217 8176 2.271 36 31 14,6849-44222 50-44222 8630 2.397 38 33 15,0249-44229 50-44229 9084 2.523 40 34 15,5849-44235 50-44235 9538 2.650 42 36 15,9049-44241 50-44241 9990 2.776 44 38 16,2149-44248 50-44248 10445 2.902 46 40 16,5149-44250 50-44250 10900 3.028 48 42 16,8249-44262 50-44262 11355 3.154 50 44 17,12Kvwww.frese.eu→Type 30 and 40

TechnotePage 7 of 7UK Frese ALPHA cartridges JUL 09Cartridges for valves from DN50-DN800AISI 304Frese no.Max. Δp 600 kPaFlow[l/h]Cartridge type 50Flow[l/s]Flow[gpm]Frese ALPHA cartridgesMin.ΔP[kPa]52-55179 3820 1.061 16.82 13 10,652-55184 3931 1.092 17.31 13 10,952-55189 4049 1.125 17.83 13 11,252-55194 4199 1.167 18.49 13 11,752-55200 4399 1.222 19.37 13 12,252-55206 4640 1.289 20.43 14 12,452-55213 4951 1.375 21.80 14 13,252-55220 5310 1.475 23.38 14 14,252-55227 5700 1.583 25.10 14 15,252-55235 6209 1.725 27.34 14 16,652-55243 6511 1.808 28.67 14 17,452-55251 7081 1.967 31.18 14 18,952-55260 7901 2.194 34.79 15 20,452-55269 8900 2.472 39.19 16 22,352-55279 10399 2.889 45.79 19 23,952-55287 11355 3.154 50.00 22 24,252-55292 12491 3.470 55.00 23 26,152-55298 13399 3.722 59.00 24 27,452-55303 14762 4.100 65.00 27 28,452-55308 15999 4.444 70.45 29 29,7Cartridge type 6052-66285 17037 4.733 75.02 34 29,252-66292 18148 5.041 79.91 34 31,152-66301 18797 5.221 82.77 35 31,852-66305 19467 5.408 85.72 35 32,952-66312 20464 5.684 90.11 35 34,652-66319 21527 5.980 94.79 36 35,952-66326 22449 6.236 98.85 36 37,452-66332 23482 6.523 103.40 36 39,152-66338 24531 6.815 108.02 37 40,352-66344 25621 7.117 112.82 38 41,652-66349 26528 7.369 116.81 38 43,052-66356 27686 7.690 121.91 38 44,952-66362 29157 8.099 128.39 38 47,352-66367 29954 8.320 131.90 39 48,052-66373 30976 8.605 136.40 39 49,652-66379 32260 8.961 142.05 40 51,052-66385 33565 9.324 147.80 40 53,052-66391 34953 9.709 153.91 40 55,352-66393 36336 10.093 160.00 42 56,152-66398 37685 10.468 165.94 43 57,552-66400 38607 10.724 170.00 44 58,252-66407 40971 11.381 180.41 46 60,452-66407H 45000 12.500 198.19 49 64,3Kvwww.frese.euType 50 and 60→Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.Frese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk2

TechnotePage 1 of 6Frese ALPHA - automatic balancing valveApplicationThe Frese ALPHA Valves are particularly designed andmanufactured for the automatic balancing of heating andcooling circuits.The Frese ALPHA Cartridges - the second generationcartridges - are an integral part of the Frese ALPHA Valveslimiting the flow at the specified level even under fluctuatingpressure conditions.The patented design of these cartridges introduces areplaceable orifice plate for higher flexibility and a resistantdiaphragm for higher accuracy. From small size threadedvalves (DN15) to big flanged type valves (DN800), fromsmall heating units to district cooling applications, FreseALPHA Valves guarantee the hydraulic balance of the systemregardless pressure fluctuations.3Benefits• Balancing of the system takes place automatically evenunder fluctuating pressure conditionsDesign• No need to use balancing valves in the distributionlines, main distribution lines and supply lines.• Less time to define the necessary equipment for ahydraulic balanced system.• No impact if the calculated distribution of pressure inthe installation is not accurate.• Security that the specified flow is also the real one• No requirements on pipe lengths before and after thevalveInstallation• Minimized commissioning time due to automatic balancingof the system• Cartridge solution makes flushing procedure very easy• No need for oversized pumps and oversized controlvalvesOperationFeaturesWide product range covering all applications:- sizes from DN15 to DN800- different end connections (female/female, unionconnections, flanges)- dezincification resistant brass, ductile iron.- P/T plugs, drain, combi-drain.- Kit solution with strainer and ball-valves, solution withintegral ball-valve.• Modifications & extensions of the system do not affectthe hydraulic balance in the other parts of the system.• Tamper resistant cartridge independent of flow regulationerrors during commissioning and operation of thesystem.UK Frese ALPHA JUN 11• Energy savings due to elimination of overflows• Higher comfort due to correct distribution of water inthe system and to optimized function of the controlvalveswww.frese.eu• Self-cleaning cartridge not allowing dirt to comprosmisethe accuracy of the valve.• Resistant diaphragm between the moving parts of thecartridge eliminates friction, noise and impact fromwater hummer.

TechnotePage 2 of 6Frese ALPHA - automatic balancing valveFemale/Female threadedA very simple and efficient solution for automatic balancing of heating/cooling circuits.Technical dataValve Housing:DZR brass, CW602NO-rings:EPDMPressure class:PN25Temperature:-20 0 C to + 120 0 CDiff. Pressure Range: 7 - 600 kPaThread: ISO 228Frese product numbers are marked with an X.X represents the 5 different options available for differentaccessory features - see below.E.g. 49-9041 = Frese ALPHA DN32 equipped with 2 pcs. 1”P/T-Plugs.Flow Cartridge is selected from Cartridge Catalogues andordered under individual numbers.Frese no. Dimensions49-900X DN1549-901X DN2049-902X DN2549-903X DN25L49-904X DN3249-905X DN4049-906X DN50Accessories 1 2 4 5 6L, W & Hare stated in[mm]2 pcs1” P/T plugs2 pcs2” P/T plugsPlug anddrain valveCombidrainand2” P/T plugs2 pcsP/T plugsLNetWeight[kg]Dimensions W H W H W H W H W H15/20 55 94 71 133 63 95 71 133 49 75 77 ~0.5025 55 94 71 133 63 95 71 133 49 75 83 ~0.6525L/32/40/50 80 126 91 164 83 127 91 164 68 115 123 ~1.45UK Frese ALPHA JUN 11Glycolic mixtures (both ethylene and propylene) up to 50% are applicable with Frese Alpha. Strainer is recommended. The pipe system should be properlyventilited to avoid the risk of air-pockets.Specification textThe valve shall operate by means of an automatic balancing cartridge with replaceable orifice plate and internal diaphragm.The pressure class of the valve shall be PN25. The valve housing shall be made of DR brass.www.frese.eu

TechnotePage 3 of 6Frese ALPHA - automatic balancing valveALPHA kitA kit solution containing an Alpha Female / Female Valve, a strainer and two isolation ball-valves.UK Frese ALPHA JUN 11Technical dataALPHA Valve:Valve Housing:DZR brass, CW602NO-rings:EPDMSeal:PTFEPressure class:PN25Temperature:-20 0 C to + 120 0 CDiff. Pressure Range: 7 - 600 kPaFlow range:See Cartridge CatalogueThread: ISO 228Strainer:Valve Housing:DR, Dezincification Resistant BrassFilter:Stainless steelSeal:PTFEMesh:32 (0,5 mm)Pressure class:PN16Temperature:-20 to + 150 0 CThread: ISO 228Ball Valve:Valve Housing:DR, Dezincification Resistant BrassO-rings:EPDMSeal:PTFEPressure class:PN20Temperature:-20 to + 110 0 CThread: ISO 228StrainerBall ValveDimensions Weight [kg] L [mm] H [mm]DN15 0.158 56 41DN20 0.282 69 50DN25 0.440 82 62DN32 0.638 90 71DN40 0.820 101 78DN50 1.280 121 96Dimensions Weight [kg] L [mm] H [mm]DN15 0.195 62 44DN20 0.327 73 47DN25 0.502 85 55DN32 0.869 106 75DN40 1.348 113 82DN50 2.371 135 94Flow Cartridge is selected from CartridgeCatalogues and ordered under individualnumbers.Please see accessories for feature selection.Frese no.Dimensions49-9466 DN1549-9476 DN2049-9486 DN2549-9496 DN25L49-9506 DN3249-9516 DN4049-9526 DN50Glycolic mixtures (both ethylene and propylene) up to50% are applicable with Frese Alpha. The pipe systemshould be properly ventilited to avoid the risk of airpockets.Specification textThe valve shall operate by means of an automatic balancing cartridge with replaceable orifice plate andinternal diaphragm. The pressure class of the valve shall be PN25. The valve housing shall be made of DRbrass. The housing of the strainer shall be made of DR brass; the filter shall be replaceable and made ofstainless steel. The filter mesh shall be 32 (0.5 mm).www.frese.eu3

TechnotePage 4 of 6Frese ALPHA - automatic balancing valveFixed Female/Male for union connectionAn automatic balancing valve with an integral ball valve and one union end for ease of installationTechnical dataValve Housing:DZR brass, CW602NO-rings:EPDMSeal:PTFEPressure class:PN25Temperature:-20 0 C to + 120 0 CDiff. Pressure Range: 7 - 600 kPaFlow range:See Cartridge CatalogueThread: ISO 228Frese product numbers are marked with an X.X represents the 3 different options available for differentaccessory features - see below.E.g. 49-9431 = Frese ALPHA DN32 equipped with 2pcs. 1” P/T-Plugs.Flow Cartridge is selected from Cartridge Cataloguesand ordered under individual numbers.Frese no. Dimensions49-935X DN1549-937X DN2049-939X DN2549-941X DN25L49-943X DN3249-945X DN40Accessories 1 4 6L, W & Hare stated in[mm]2 pcs1” P/T plugsPlug anddrain valve2 pcsP/T plugsLNetWeight[kg]Dimensions W H W H W H15/20/25 87 94 95 95 81 75 107 ~0.7125L/32/40/50 124 126 127 127 112 115 160 ~2.15UK Frese ALPHA JUN 11All threads are ISOtype. Length is totalvalve length with oneunion connection.Length in mm.* Material in contactwith waterFrese no./Lenghtwith oneunionMaleendsDZR Brass *Frese no./Lenghtwith oneunionSolderingendsBrassDN15 43-4310/132 15 mm 43-4102/127DN20 43-4312/132 18 mm 43-4103/127DN25 43-4314/146 22 mm 43-4104/12928 mm 43-4105/128DN25L 43-5330/200 28 mm 43-5122/180DN32 43-5332/200 35 mm 43-5123/197DN40 43-5334/202 42 mm 43-5124/197Glycolic mixtures (both ethylene and propylene) upto 50% are applicable with Frese Alpha. Strainer isrecommended. The pipe system should be properlyventilited to avoid the risk of air-pockets.Specification textThe valve shall operate by means of an automatic balancing cartridge with replaceable orifice plate andinternal diaphragm. The pressure class of the valve shall be PN25. The valve housing shall be made of DRbrass. The housing shall have one fixed threaded end and one union end. The valve includes an integralball valve with handle.www.frese.eu

TechnotePage 5 of 6Frese ALPHA - automatic balancing valveFixed Female/Female for union connectionAn automatic balancing valve with an integral ball valve and one union end for ease of installationTechnical dataValve Housing:DZR brass, CW602NO-rings:EPDMSeal:PTFEPressure class:PN25Temperature:-20 0 C to + 120 0 CDiff. Pressure Range: 7 - 600 kPaFlow range:See Cartridge CatalogueThread: ISO 228Frese product numbers are marked with an X.X represents the 2 different options available for differentaccessory features - see below.E.g. 49-9421 = Frese ALPHA DN32 equipped with 2pcs. 1” P/T-Plugs.Flow Cartridge is selected from Cartridge Cataloguesand ordered under individual numbers.Accessories 1 5Frese no. Dimensions49-934X DN1549-936X DN2049-938X DN2549-940X DN25L49-942X DN3249-944X DN40L, W & Hare stated in[mm]32 pcs1” P/T plugsCombidrainand2” P/T plugsLNetWeight[kg]Dimensions W H W H15/20/25 87 94 103 133 129/129/146 ~0.8725L/32/40/50 124 126 135 164 195/195/200 ~2.54All threads are ISOtype. Length is totalvalve length with oneunion connection.Length in mm.Frese no./Lenghtwith oneunionFemaleendsDZR Brass *DN15 43-4210/129DN20 43-4212/129DN25 43-4214/146Glycolic mixtures (both ethylene and propylene) upto 50% are applicable with Frese Alpha. Strainer isrecommended. The pipe system should be properlyventilited to avoid the risk of air-pockets.UK Frese ALPHA JUN 11* Material in contactwith waterDN25L 43-5230/195DN32 43-5232/195DN40 43-5234/200Specification textThe valve shall operate by means of an automatic balancing cartridge with replaceable orifice plate andinternal diaphragm. The pressure class of the valve shall be PN25. The valve housing shall be made of DRbrass. The housing shall have one fixed threaded end and one union end. The valve includes an integralball valve with handle.www.frese.eu

TechnotePage 6 of 6Frese ALPHA - automatic balancing valveFlanged ductile ironA wafer-type valve containing, depending on the size and the design flow, up to 85 Frese ALPHAcartridgesTechnical dataValve Housing:Ductile iron DIN 1693 GGG-40O-rings:EPDMFasteners: AISI 306Pressure class:PN16 (PN25)Temperature:-20 0 C to + 120 0 CDiff. Pressure Range: 13 - 600 kPaFlow range:See Cartridge CatalogueD1Frese no.(PN16)Frese no.(PN25)DimensionsL[mm]D[mm]D1[mm]H[mm]Net Weight[kg]Cart./Valve(Pcs.)- 49-9073 DN50 170 100 80 218 3.41 1- 49-9083 DN65 170 119 80 237 4.91 1- 49-9093 DN80 170 131 80 249 4.79 149-9103 49-9540 DN100 170 163 100 281 6.90 249-9163 49-9541 DN125 170 193 125 311 9.00 349-9113 49-9542 DN150 170 216 150 334 11.73 449-9123 49-9543 DN200 170 271 200 389 18.75 749-9133 49-9544 DN250 170 326 260 440 23.44 1249-9143 49-9545 DN300 170 383 315 501 33.41 1549-9153 49-9546 DN350 170 443 355 561 44.21 1949-9173 49-9547 DN400 170 496 405 614 51.63 2649-9183 49-9548 DN450 170 545 455 663 57.47 3349-9193 49-9549 DN500 170 601 508 719 67.75 4049-9203 49-9550 DN600 170 715 610 833 88.90 5649-9213 - DN800 170 880 760 998 127.30 85Blind Caps can be fitted instead of cartridges if the full flow capacity is not required. Frese A/S can deliver the valve with thecartridges installed (Frese number i.e. 49-9073-01 instead of 49-9073). Valves are delivered with 4” P/T-Plugs. From DN100 thevalves are delivered with an eye bolt.Glycolic mixtures (both ethylene and propylene) up to 50% are applicable with Frese Alpha. Strainer is recommended. The pipe system should be properlyventilited to avoid the risk of air-pockets.Specification textThe valve shall operate by means of automatic balancing stainless steel cartridges with replaceable orifice plate and internalEPDM diaphragm. The pressure class of the valve shall be PN16/PN25. The valve housing shall be made of ductile iron typeGGG40. The valve shall comply with flanges according to EN/ANSI standards.UK Frese ALPHA JUN 11www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

Technotewww.frese.eu

TechnotePage 1 of 13Frese S- dynamic balancing valveApplicationFrese S is used in heating and cooling systems for the distributionof flow in various sections of the system.The dynamic balancing valve ensures easy and reliablebalancing of the system, regardless of any fluctations in thedifferential pressure of the system.Frese S limits maximum flow in the system, and ensures themost economical operation.Can be used in both variable and constant flow systems.4Benefits• Quick and easy selection as only flow data are required.• Security that the specified flow will not be exceeded.• Easy to install and adjust according to pre-defined flow.• Flexibility if the system is modified after the initialinstallation• Minimized commissioning time due to automatic balancingof the system.Features• Removable differential pressure cartridge solutionsimplifies flushing procedure• No minimum straight pipe lengths required before orafter the valve.• Built-in optional P/T ports for needle system.• Easy adjustment of the flow by the lockable handle.• High comfort for the end-users due to right balance ofthe hydraulic system.• The valves automatically find the hydraulic balanceregardless of pressure fluctations in the system.• No main circuit or branch balancing valves needed inthe system.UK Frese S APR 09• Systems with dynamic balancing are flexible, as they donot require readjustment of the ”original” circuit in casethe system is extended after installation.www.frese.eu

TechnotePage 2 of 13Frese S- dynamic balancing valveFunction Frese SSimplified outline SThe following applies to all flow control valves:Q = kV * √ΔpQ = Flow (m 3 /h)kV = Opening areaΔp = Differential pressure (Bar)The Frese S valves, react to pressure fluctations sothat the differential pressure across the preadjustmentunit is kept constant.In that way a max. flow limit is ensured in accordancewith the design.Flow characteristicThe illustration shows how the flow in aFrese S valve reacts in accordance to thepump pressure.For comparison we have added a typicalflow.The differential pressure unit of thevalve will work as soon as the differentialpressure provided by the pump issufficient. Consequently, the rated flowis maintained regardless of any pressurefluctuations in the system.Setting the valveUK Frese S APR 09The valve is easily set, and the pre-settingis read on the scale. The flow rate of thevalve can be determined from the flowrate graphs for the valve dimension inquestion.See the flow rate graphs of the valve onpages 7 to 13 for further informationabout the adjustment setting.Please note:The scale is for the adjustment of flow.If you want to close the valve, use theversion with isolation ball valve.The handle can be locked after adjustment.Remove cap marked Frese, and tightenwith 5mm hexagonal key.www.frese.euThe flow through the valve can beidentified by measuring the differentialpressure (Δp) across the valve:If the measured differential pressure isabove the minimum Δp, the flow is theone stated on the graph for the valve.If the measured differential pressure isbelow the minimum Δp, the flow can befound by using the formulas below.Flow CalculationQ = kV · √ΔpQ = kV · 100 · √ΔpQ = kV · √Δp36Q = m3/hΔp = BarQ = l/hΔp = kPaQ = l/sΔp = kPa

TechnotePage 3 of 13Frese S- dynamic balancing valveVerification of dynamic systemsIn general the flow rate in a system can be verified in two ways,i.e.:• Direct flow rate verification in a circuit• Measurement of the differential pressure across the balancingvalve or metering station.Direct flow rate verificationCan for example be carried out by ultrasonic equipment. On thebasis of the measured velocity of the flow and the pipe dimensionthe software will compute a flow rate. The use of ultrasonicverification requires free access to the pipes as the sensors arefitted directly to the pipe.Measurement of the differential pressure is the prevailingmethod.On dynamic valves the differential pressure across the valve ismeasured to determine whether the valve is within the pressurerange or not.Use the flow graphs to set the valve and verify the min. ΔP.As previously mentioned, the Frese valve includes a differentialpressure regulator, to keep the design flow limitedunder different pressure conditions. The flow rate itself,however, is only determined by the pre-setting in thesame way as in any static valve.Use the procedure as described for verification of theflow, and for optimization of the operation.Once the differential pressure has been verified, the flowrate is given according to the flow rate graphs in this technote. You may copy the form on page 11 and use it asdocumentation when verifying the different flow rates inthe installation.4Measurement of the differential pressureacross the valveUK Frese S APR 09www.frese.eu

TechnotePage 4 of 13Frese S- dynamic balancing valveApplication sketchesFrese S system in circuit with heating surfacesThe system is easily balanced by adjusting the pumpaccording to the required differential pressure acrossthe critical valve (P+ - P-).When the differential pressure is available the systemwill automatically be balanced.Frese S in installation with mixing loopsPlease note:The balance is controlled by the Frese S valves fittedin each control zone. Major branch balancing valvesare eliminated, even if the system may be larger andwith far more branches than shown in this simplifieddiagram.Flow rate example Frese S, DN15Rated flow 500 l/h - 0,0139 l/s1. The rated flow is used as the point of referencefor the overall rating of dynamic systems.(See the graph)2. The pre-setting for the valve is found by meansof the flow rate graph.Setting = 5.2.3. To the right in the graph you will see the minimumdifferential pressure required from the pump byeach valve.Requires 18,3 kPa.1 32Δp kPaUK Frese S APR 09www.frese.eu

TechnotePage 5 of 13Frese S- dynamic balancing valveTechnical dataHousing:DP controller:Flow setting:Spring:Diaghragm:O-rings:Pressure class:Max. differential pressure:Temperature range:Frese SDZR, BrassPPS 40% glassPPOStainless steelHNBREPDMPN25 (without isolation valve)PN16 (with isolation valve)400 kPa (High pressure)250 kPa (Low pressure)-10 0 C to + 120 0 CFrese S with isolation valveH2L24Text for technical SpecificationsFrese SDimension DN15 DN20 DN25 DN32 DN40 DN50Flow rateHP 0.011 - 0.306 0.018 - 0.512 0.025 - 0.653 0.060 - 1.328 0.049 - 2.067 0.122 - 2.868l/sLP 0.007 - 0.223 0.011 - 0.351 0.017 - 0.462HP 40 - 1100 66 - 1850 89 - 2350 217 - 4800 175 - 7450 440 - 10350l/hLP 25 - 804 41 - 1265 61 - 1663HP 0.18 - 4.85 0.29 - 8.11 0.39 - 10.35 0.96 - 21.04 0.77 - 32.76 1.94 - 45.46gpmLP 0.11 - 3.54 0.18 - 5.57 0.27 - 7.32Dimension mm L 96 97 103 132 144 155L1 167 173 202 235 257 286H 148 151 155 188 206 219H1 96 98 102 115 119 126L2 75 82 95 100 108 127H2 95 103 111 135 145 164KVs HP 2.4/LP 2.2 HP 3.6/LP 3.3 HP 4.4/LP 4.1 8.8 13.2 16.7UK Frese S APR 09The valve should be a automatic balancing valve with the option of setting the flow withoutinterference of operation.The valve should include P/T plugs for the verification of differential pressure.The valve should only be adjustable by means of a lockable handle.www.frese.eu

TechnotePage 6 of 13Frese S- dynamic balancing valvePTPlugsFrese S without Isolation ValveDN15 DN20 DN25 DN32 DN40 DN50(HP) 53-2000 (HP) 53-2001 (HP) 53-2002(HP) 53-2003 (HP) 53-2004 (HP) 53-2005(LP) 53-2006 (LP) 53-2007 (LP) 53-2008Plugs (HP) 53-2010 (HP) 53-2011 (HP) 53-2012 (HP) 53-2013 (HP) 53-2014 (HP) 53-20152” PT plugscombi(HP) 53-2020 (HP) 53-2021 (HP) 53-2022 (HP) 53-2023 (HP) 53-2024 (HP) 53-2025Plug + drainvalve(HP) 53-2030(LP) 53-2036(HP) 53-2031(LP) 53-2037(HP) 53-2032(LP) 53-2038(HP) 53-2033 (HP) 53-2034 (HP) 53-20352” PT plugs (HP) 53-2040 (HP) 53-2041 (HP) 53-2042 (HP) 53-2043 (HP) 53-2044 (HP) 53-2045PTPlugsFrese S with Isolation ValveDN15 DN20 DN25 DN32 DN40 DN50(HP) 53-2050 (HP) 53-2051 (HP) 53-2052(HP) 53-2053 (HP) 53-2054 (HP) 53-2055(LP) 53-2056 (LP) 53-2057 (LP) 53-2058Plugs (HP) 53-2060 (HP) 53-2061 (HP) 53-2062 (HP) 53-2063 (HP) 53-2064 (HP) 53-20652” PT plugscombi(HP) 53-2070 (HP) 53-2071 (HP) 53-2072 (HP) 53-2073 (HP) 53-2074 (HP) 53-2075Plug + drainvalve(HP) 53-2080(LP) 53-2086(HP) 53-2081(LP) 53-2087(HP) 53-2082(LP) 53-2088(HP) 53-2083 (HP) 53-2084 (HP) 53-20852” PT plugs (HP) 53-2090 (HP) 53-2091 (HP) 53-2092 (HP) 53-2093 (HP) 53-2094 (HP) 53-2095PT plugsFrese S Frese with Isolation S SystemValveDN15 DN20 DN25 DN32 DN40 DN50(HP) 53-2120 (HP) 53-2121 (HP) 53-2122(HP) 53-2123 (HP) 53-2124 (HP) 53-2125(LP) 53-2126 (LP) 53-2127 (LP) 53-2128UK Frese S APR 09Plug + 2drain valves(HP) 53-2130(LP) 53-2136(HP) 53-2131 (HP) 53-2132(LP) 53-2137 (LP) 53-2138www.frese.eu(HP) 53-2133 (HP) 53-2134 (HP) 53-2135

TechnotePage 7 of 13Flow rate graph Frese S, DN15 High PressureFrese S- dynamic balancing valvekV (m 3 /h)0,1 0,3 0,6 0,8 1,1 1,3 1,6 1,9 2,2 2,4Δp kPa4Pre-setFlow rate graph Frese S, DN20 High PressurekV (m 3 /h)0,2 0,6 1,0 1,5 1,9 2,3 2,7 3,1 3,5 3,6Δp kPaUK Frese S APR 09Pre-setwww.frese.eu

TechnotePage 8 of 13Flow rate graph Frese S, DN25 High PressureFrese S- dynamic balancing valvekV (m 3 /h)Δp kPa0,3 0,8 1,5 2,2 2,8 3,3 3,8 4,1 4,3 4,4Flow rate graph Frese S, DN32 High PressurePre-setkV (m 3 /h)0,6 1,8 3,0 4,1 5,2 6,3 7,3 8,1 8,7 8,8Δp kPaUK Frese S APR 09Pre-setwww.frese.eu

TechnotePage 9 of 13Flow rate graph Frese S, DN40 High PressureFrese S- dynamic balancing valvekV (m 3 /h)0,5 2,0 4,0 5,9 7,6 9,0 10,5 11,8 12,9 13,2Δp kPa4Pre-setFlow rate graph Frese S, DN50 High PressurekV (m 3 /h)Δp kPa1,1 3,6 6,2 8,6 10,6 12,4 14,0 15,4 16,2 16,7UK Frese S APR 09Pre-setwww.frese.eu

TechnotePage 10 of 13Flow rate graph Frese S DN15 Low PressureFrese S- dynamic balancing valveFlow (l/s)0,222Flow (l/h)800kV (m 3 /h)min. Δp kPa0,1 0,3 0,6 0,8 1,1 1,3 1,6 1,8 2,1 2,212,80,19470012,20,16760011,60,139500110,11140010,40,0833009,80,0562009,20,0281008,600 80 1 2 3 4 5 6 7 8 9 10Pre-setFlow rate graph Frese S DN20 Low PressureFlow (l/s) Flow (l/h)0,361 1300kV (m 3 /h)min. Δp kPa0,2 0,5 0,9 1,4 1,8 2,2 2,5 2,9 3,2 3,3150,333120014,5UK Frese S APR 090,3060,2780,2500,2220,1940,1670,1390,1110,0830,0560,028011001000900800700600500400300200100Pre-set00 1 2 3 4 5 6 7 8 9 1014www.frese.eu13,51312,51211,51110,5109,598,5

TechnotePage 11 of 13Flow rate graph Frese S DN25 Low PressureFrese S- dynamic balancing valvekV (m 3 /h)Flow (l/s) Flow (l/h)min. Δp kPa0,2 0,7 1,3 1,9 2,5 3,0 3,4 3,7 4,0 4,10,472 1700170,444 160016,50,417 1500160,389 140015,50,361 1300150,333 120014,50,306 1100140,278 100013,50,250 900130,222 80012,50,194 700120,167 60011,50,139 500110,111 40010,50,083 300100,056 2009,50,028 100900 8,50 1 2 3 4 5 6 7 8 9 104Pre-setUK Frese S APR 09Frese S DN15 LPFlowFrese S DN20 LPPre-setting l/h l/s gpm l/h l/s gpm l/h l/s gpm1,00 25 0,007 0,11 41 0,011 0,18 61 0,017 0,271,50 48 0,013 0,21 82 0,023 0,36 131 0,036 0,582,00 84 0,023 0,37 145 0,040 0,64 220 0,061 0,972,50 127 0,035 0,56 218 0,061 0,96 322 0,089 1,423,00 172 0,048 0,76 297 0,083 1,31 432 0,120 1,903,50 218 0,061 0,96 377 0,105 1,66 547 0,152 2,414,00 263 0,073 1,16 455 0,126 2,00 664 0,184 2,924,50 306 0,085 1,35 531 0,147 2,34 780 0,217 3,435,00 348 0,097 1,53 605 0,168 2,66 895 0,249 3,945,50 390 0,108 1,72 678 0,188 2,99 1007 0,280 4,436,00 433 0,120 1,90 752 0,209 3,31 1114 0,310 4,916,50 477 0,132 2,10 828 0,230 3,65 1218 0,338 5,367,00 524 0,145 2,31 906 0,252 3,99 1315 0,365 5,797,50 573 0,159 2,52 985 0,274 4,34 1405 0,390 6,198,00 625 0,174 2,75 1064 0,296 4,68 1486 0,413 6,548,50 678 0,188 2,98 1139 0,316 5,01 1557 0,432 6,859,00 728 0,202 3,20 1204 0,334 5,30 1612 0,448 7,109,50 772 0,214 3,40 1249 0,347 5,50 1650 0,458 7,2610,00 804 0,223 3,54 1265 0,351 5,57 1663 0,462 7,32Flowwww.frese.euFrese S DN25 LPFlow

TechnotePage 12 of 13Frese S- dynamic balancing valveUK Frese S APR 09Setting and FlowFrese S DN15 HPFlowPre-setting l/h l/s gpm l/h l/s gpm l/h l/s gpm1,00 40 0,011 0,18 66 0,018 0,29 89 0,025 0,391,50 80 0,022 0,35 123 0,034 0,54 177 0,049 0,782,00 129 0,036 0,57 204 0,057 0,90 297 0,082 1,312,50 182 0,051 0,80 298 0,083 1,31 438 0,122 1,933,00 237 0,066 1,04 398 0,111 1,75 591 0,164 2,603,50 293 0,081 1,29 501 0,139 2,21 751 0,209 3,314,00 348 0,097 1,53 604 0,168 2,66 914 0,254 4,024,50 404 0,112 1,78 707 0,196 3,11 1076 0,299 4,745,00 461 0,128 2,03 810 0,225 3,57 1236 0,343 5,445,50 519 0,144 2,29 916 0,254 4,03 1391 0,387 6,136,00 581 0,161 2,56 1025 0,285 4,51 1543 0,429 6,796,50 645 0,179 2,84 1138 0,316 5,01 1689 0,469 7,437,00 713 0,198 3,14 1257 0,349 5,53 1828 0,508 8,057,50 784 0,218 3,45 1379 0,383 6,07 1960 0,544 8,638,00 858 0,238 3,78 1502 0,417 6,61 2081 0,578 9,168,50 931 0,258 4,10 1620 0,450 7,13 2187 0,607 9,639,00 999 0,278 4,40 1725 0,479 7,59 2273 0,631 10,009,50 1059 0,294 4,66 1804 0,501 7,94 2331 0,647 10,2610,00 1100 0,306 4,85 1850 0,512 8,11 2350 0,653 10,35Frese S DN32 HPFlowFrese S DN20 HPFlowFrese S DN40 HPwww.frese.euFrese S DN25 HPPre-setting l/h l/s gpm l/h l/s gpm l/h l/s gpm1,00 217 0,060 0,96 175 0,049 0,77 440 0,122 1,941,50 443 0,123 1,95 439 0,122 1,93 976 0,271 4,292,00 699 0,194 3,08 818 0,227 3,60 1576 0,438 6,942,50 973 0,270 4,28 1260 0,350 5,55 2214 0,615 9,753,00 1257 0,349 5,53 1730 0,480 7,61 2868 0,797 12,623,50 1545 0,429 6,80 2204 0,612 9,70 3525 0,979 15,524,00 1836 0,510 8,08 2672 0,742 11,76 4179 1,161 18,404,50 2127 0,591 9,36 3127 0,868 13,76 4824 1,340 21,245,00 2420 0,672 10,65 3571 0,992 15,72 5461 1,517 24,045,50 2714 0,754 11,95 4009 1,114 17,65 6089 1,691 26,806,00 3012 0,837 13,26 4449 1,236 19,58 6709 1,864 29,546,50 3310 0,919 14,57 4895 1,360 21,55 7321 2,034 32,237,00 3607 1,002 15,88 5350 1,486 23,55 7919 2,200 34,867,50 3897 1,083 17,16 5811 1,614 25,58 8497 2,360 37,418,00 4172 1,159 18,36 6267 1,741 27,59 9041 2,511 39,808,50 4418 1,227 19,45 6698 1,861 29,49 9530 2,647 41,959,00 4618 1,283 20,33 7072 1,964 31,13 9934 2,760 43,739,50 4749 1,319 20,90 7341 2,039 32,32 10216 2,838 44,9710,00 4800 1,328 21,04 7450 2,067 32,76 10350 2,868 45,46FlowFlowFrese S DN50 HPFlow

TechnotePage 13 of 13Frese S- dynamic balancing valveDocumentation formularValve ID(own choise)Valve type Dimension Pre-setting Verified Δp[kPa]Min. Δp(see flow rate graph)[kPa]Flow4Pump type Regulation mode Set pointInstallationSignatureDateUK Frese S APR 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 12Frese OPTIMA- pressure independent control & balancing valveApplicationFrese OPTIMA pressure independent control valve (PICV) isused in heating and cooling systems in applications withFan Coil Units, Air Handling Units or other terminal unit applications.Frese OPTIMA provides modulating control with full authorityregardless of any fluctuations in the differential pressureof the system.Frese OPTIMA combines an externally adjustable automaticbalancing valve, a differential pressure control valve and afull authority modulating control valve.Frese OPTIMA makes it simple to achieve 100% control ofthe water flow in the building, while creating high comfortand energy savings at the same time. An additional benefitis that no balancing is required if further stages are addedto the system, or if the dimensioned capacity is changed.Energy saving due to optimal control, lower flow and pumppressure. Maximized ∆T due to faster response and increasedsystem stability.5BenefitsFeaturesUK Frese OPTIMA AUG 10Design• Less time to define the necessary equipment for a hydraulicbalanced system (only flow data are required)• No need to calculate valve authority• Flexibility if the system is modified after the initialinstallationInstallation• No further regulating valves required in the distributionpipework when Frese OPTIMA is installed at terminals.• Total number of valves minimized due to the 3-in-1design• Minimized commissioning time due to automatic balancingof the system• Removable cartridge solution simplifiesflushing procedure• No minimum straight pipe lengths required before orafter the valve.Operation• High comfort for the end-users due to highprecision temperature control• Longer life due to less movements of theactuatorwww.frese.eu• The presetting function has no impact on the stroke; Fullstroke modulation at all times, regardless the preset flow.• The constant differential pressure across the modulatingcontrol component guarantees 100% authority.• Automatic balancing eliminates overflows, regardless offluctuating pressure conditions in the system.• Flushing through the valve is possible due to the removablecartridge feature• Electrical actuator 0-10 V and 3 point control, normallyclosed• Differential pressure operating range up to 400 kPa• High flows with minimal required differential pressure dueto advanced design of the valve• More accurate control due to long 5.5 mm stroke• Higher presetting precision due to stepless analogue scale

TechnotePage 2 of 12Frese OPTIMA- pressure independent control & balancing valve4 54231DesignThe design of Frese OPTIMA combines high performance withsmall size and compact construction. The main components ofthe valve are:1The pressure control cartridgeFunctionThe Frese OPTIMA is delivered with a commissioning cap allowingthe flow to pass through the valve before the actuator isinstalled. The commissioning cap and cartridge features allowflushing through the valve before commissioning the system.2345The modulating control componentThe presetting scale (not accessible when the actuatoris mounted)3The P/T plugs (optional)The electrical actuatorDuring flushing the valve must be held in fully openposition by the comissioning cap. The diaphragm can bedamaged by not following this procedureAfter flushing, the pressure control cartridge can be reinsertedinto the valve and the commissioning cap can be discardedallowing the user to adjust the presetting dial to the designflow. The presetting of the dial is user-friendly requiring onlya simple flow vs. presetting graph. Once the flow is set, theactuator can be mounted and the valve ready to operate.Pre-setting scaleActuator35Manual operationDN15-DN32The actuator can then be operated manually with the help of a3mm hex key.DN40-DN50The actuator can be operated manually by adjusting handleUK Frese OPTIMA AUG 101Pressure controlcartridge2Modulating controlcomponent4P/T Plugswww.frese.euNoteIf the operation is performed manually without disconnectingfrom the power, the supply must be disconnected and thenreconnected, whereby the actuator will start the calibrationprocess and correctly adjust itself.

TechnotePage 3 of 12Frese OPTIMA- pressure independent control & balancing valveOperation principleThe innovative design of Frese OPTIMA introduces a modulatingcontrol component that retains 100% authority at all times.With the Frese OPTIMA, there are two independent movementsfor the presetting and the modulating function. During presetting,the inlet area moves radially without interfering withthe length of the stroke. During modulating, the inlet areamoves axial taking advantage of the full stroke. In the examplebelow,the flow is modulated throughout the full range from 10to 0V regardless of the preset flow (i.e. 625 l/h or 300 l/h).Flow rate vs. differential pressureWhilst the control component provides proportionalmodulation irrespective of the preset flow, the automaticbalancing cartridge guarantees that the flow will neverexceed the maximum preset flow. Regardless of pressurefluctuations in the system, the maximum flow is kept constantup to a maximum differential pressure of 400kPa.Flow (l/h)(Preset flow: 625 l/h, 300 l/h)5Differential pressure (kPa)Flow rate vs. voltageVoltage (V)Pre-setting(Preset flow: 625 l/h, 300 l/h)StrainerFlow rate vs. differential pressureFlow (l/h)Flow l/h10VUK Frese OPTIMA AUG 10Ball Valve(Voltage: 10V, 6V, 3V)www.frese.eu6V3VDifferential pressure (kPa)

TechnotePage 4 of 12Frese OPTIMA- pressure independent control & balancing valveTechnical dataValveValve housing and flow setting: DZR Brass, CW602NDP controller:PPS 40% glassSpring:Stainless steelDiaphragm:HNBRO-rings:EPDMPressure class:PN25Max. differential pressure: 400 kPaMedium temperature range: 0 0 C to 120 0 CH1HDN15-DN32LThe pipe system shall be properly ventilated to avoidrisk of air pockets.Glycolic mixtures up to 50% are applicable (both ethyleneand propylene).Frese A/S can accept no responsibility if another actuatoris used instead of the Frese actuatorH H1Technical dataDN40-DN50LUK Frese OPTIMA AUG 10Dimension DN15 DN20 DN25 DN32 DN40 DN50Flow rate l/s LF 0.022 - 0.174 0.036 - 0.292 0.064 - 0.478HF 0.068 - 0.479 0.081 - 0.566 0.081 - 0.5660.129 - 0.849 0.562 - 1.974 0.612 - 2.385l/h LF 78 - 625 131 - 1050 231 - 1722HF 244 - 1724 292 - 2039 292 - 2039465 - 3056 2022 - 7105 2204 - 8586gpm LF 0.34 - 2.76 0.58 - 4.63 1.02 - 7.59HF 1,08 - 7.60 1.29 - 8.99 1.29 - 8.992.05 - 13.47 8,90 - 31.28 9,70 - 37.80Kvs m 3 /h LF 1.62.64.3HF 4.14.34.37.2 13.9 15,2Dimension L 88 88 92 128 144 155mmH 65 65 66 72 87 93H1 145 145 145 152 219 225Weight kg 0.90 0.91 1,00 1.52 2.55 3.20www.frese.eu

TechnotePage 5 of 12Frese OPTIMA- pressure independent control & balancing valveTechnical dataActuator DN15-DN32Characteristics:Electrical, modulating, normally closedProtection class: IP 40 to EN 60529Frequency:50/60 HzControl signal:0-10V DC, or 3 positionActuating force:250 NStroke:5.5 mmRunning time: 150s 3 position/75s 0-10V & 2-10VAmbient operating conditions: +1 0 C to 50 0 CManual operation:3 mm hexagonal keyCable length:1,5 mWeight:350 gModulating actuator 24V AC-DC / 0-10 V DC / 75s 53-1045Modulating actuator 24 V AC / 3 pos / 150 s 53-1046Modulating actuator 230 V AC / 3 pos. / 150 s 53-1047Modulating actuator 24V AC-DC / 2-10 V DC / 75s 53-1050Modulating actuator 24V AC-DC / 0-10 V DC / 75s (Equal percentage) 53-1055Actuator DN40-DN505Characteristics:Electrical, modulating, normally closedProtection class: IP 54 to EN 60529Frequency:50 HzControl signal:0-10V DC, or 3 positionActuating force:400 NStroke:6.5 mmRunning time:170 s/43 sAmbient operating conditions: -5 0 C to 50 0 CManual operation:Manual adjusting handleCable:Not includedWeight:600 gModulating actuator 24 V AC / 0-10V DC / 43s 53-1052Modulating actuator 24 V AC / 3 pos / 43s 53-1053Modulating actuator 230 V / 3 pos. / 170s 53-1054Product programmeP/T PlugsFrese OPTIMADN15 DN20 DN25 DN32 DN40 DN50(LF) 53-1090 (LF) 53-1091 (LF) 53-109253-1093 53-1097 53-1098(HF) 53-1094 (HF) 53-1095 (HF) 53-1096UK Frese OPTIMA AUG 10Plugs(LF) 53-1080(HF) 53-1084(LF) 53-1081 (LF) 53-1082(HF) 53-1085 (HF) 53-1086www.frese.eu53-1083 53-1087 53-1088

TechnotePage 6 of 12Frese OPTIMA- pressure independent control & balancing valveFrese OPTIMA DN15, Low FlowFlow l/s0.194Flow l/h700Kv (m 3 /h)0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6min. Δp kPa0.16760016.00.13950015.70.1114000.08330015.10.0560.02820010014.5000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setFrese OPTIMA DN15, High FlowFlow l/s0.5000.4440.389Flow l/h180016001400Kv (m 3 /h)0.7 1.3 2.0 2.5 3.1 3.5 3.8 4.1min. Δp kPa18.017.00.33312000.278100015.80.2228000.1670.11160040014.00.056200UK Frese OPTIMA AUG 10000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setwww.frese.eu

TechnotePage 7 of 12Frese OPTIMA- pressure independent control & balancing valveFrese OPTIMA DN20, Low FlowFlow l/s0.3060.278Flow l/h11001000Kv (m 3 /h)0.3 0.7 1.0 1.4 1.7 2.0 2.3 2.6min. Δp kPa16.00.2509000.22280015.70.1947000.1676000.13950015.10.1114000.08330014.50.0560.0282001005000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setFrese OPTIMA DN20, High FlowFlow l/s0.611Flow l/h2200Kv (m 3 /h)0.8 1.5 2.2 2.7 3.3 3.8 4.24.3min. Δp kPa0.5560.5000.4440.3890.3330.2780.2220.1670.11120001800160014001200100080060040022.020.218.014.0UK Frese OPTIMA AUG 100.056020000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setwww.frese.eu

TechnotePage 8 of 12Frese OPTIMA- pressure independent control & balancing valveFrese OPTIMA DN25, Low FlowFlow l/s0.5000.4440.389Flow l/h180016001400Kv (m 3 /h)0.6 1.3 2.0 2.6 3.2 3.7 4.1 4.3min. Δp kPa16.015.50.33312000.278100014.80.2228000.1670.11160040014.00.056200000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setFrese OPTIMA DN25, High FlowFlow l/s0.611Flow l/h2200Kv (m 3 /h)0.8 1.5 2.2 2.7 3.3 3.8 4.2 4.3min. Δp kPa0.5560.5000.4440.3890.3330.2780.2220.1670.11120001800160014001200100080060040022.020.218.014.0UK Frese OPTIMA AUG 100.056020000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setwww.frese.eu

TechnotePage 9 of 12Frese OPTIMA- pressure independent control & balancing valveFrese OPTIMA DN32Flow l/s0.9030.833Flow l/h32503000Kv (m 3 /h)1.3 2.4 3.5 4.5 5.5 6.2 6.8 7.2min. Δp kPa18.00.7640.6942750250017.00.62522500.5560.4862000175016.00.41715000.34712500.278100014.50.2080.13975050050.069250000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setFrese OPTIMA DN40Flow l/s2.0831.9941.8061.6671.5281.3891.2501.1110.9720.8330.6940.5560.417Flow l/h7500700065006000550050004500400035003000250020001500Kv (m 3 /h)5.1 8.7 11.2 12.8 13.6 13.8 13.8 13.9262522.5201816.516min. Δp kPaUK Frese OPTIMA AUG 100.2780.1390100050000 0.5 1 1.5 2 2.5 3 3.5 4Pre-setwww.frese.eu

TechnotePage 10 of 12Frese OPTIMA- pressure independent control & balancing valveFrese OPTIMA DN50, High FlowFlow (l/s)2,500Flow (l/h)90002,36185002,222 80001,99475001,80670001,66765001,52860001,38955001,25050001,11145000,97240000,83335000,69430000,55625000,55620000,41715000,27810000,13905000Kv (m 3 /h)5,1 9,2 11,9 13,4 14,4 15,0 15,1 15,20 0.5 1 1,5 2 2,5 3 3,5 4Pre-set32302928252219min. Δp kPaSetting and flowOPTIMA DN15 Low FlowOPTIMA DN15 High FlowOPTIMA DN20 Low FlowUK Frese OPTIMA AUG 10Pre-set Flow l/h Flow l/s Flow gpm Flow l/h Flow l/s Flow gpm0,50 78 0,022 0,34 244 0,068 1,080,75 117 0,033 0,52 372 0,103 1,641,00 156 0,043 0,69 501 0,139 2,201,25 195 0,054 0,86 630 0,175 2,771,50 234 0,065 1,03 759 0,211 3,341,75 274 0,076 1,20 886 0,246 3,902,00 313 0,087 1,38 1009 0,280 4,442,25 352 0,098 1,55 1128 0,313 4,972,50 391 0,109 1,72 1241 0,345 5,462,75 430 0,119 1,89 1347 0,374 5,933,00 469 0,130 2,06 1444 0,401 6,363,25 508 0,141 2,24 1532 0,426 6,743,50 547 0,152 2,41 1609 0,447 7,083,75 586 0,163 2,58 1673 0,465 7,374,00 625 0,174 2,75 1724 0,479 7,59www.frese.euFlow l/h Flow l/s Flow gpm131 0,036 0,58197 0,055 0,87263 0,073 1,16328 0,091 1,44394 0,109 1,73459 0,128 2,02525 0,146 2,31591 0,164 2,60656 0,182 2,89722 0,201 3,18788 0,219 3,47853 0,237 3,76919 0,255 4,04984 0,273 4,331050 0,292 4,62

TechnotePage 11 of 12Frese OPTIMA- pressure independent control & balancing valveSetting and flowOPTIMA DN20 High FlowOPTIMA DN25 Low FlowOPTIMA DN25 High FlowPre-set Flow l/h Flow l/s Flow gpm0,50 292 0,081 1,280,75 435 0,121 1,911,00 577 0,160 2,541,25 719 0,200 3,171,50 863 0,240 3,801,75 1007 0,280 4,432,00 1152 0,320 5,072,25 1296 0,360 5,702,50 1437 0,399 6,332,75 1573 0,437 6,923,00 1700 0,472 7,483,25 1815 0,504 7,993,50 1913 0,531 8,423,75 1990 0,553 8,764,00 2039 0,566 8,98Flow l/h Flow l/s Flow gpm Flow l/h Flow l/s Flow gpm231 0,064 1,02 292 0,081 1,28357 0,099 1,57 435 0,121 1,91486 0,135 2,14 577 0,160 2,54617 0,171 2,72 719 0,200 3,17749 0,208 3,30 863 0,240 3,80878 0,244 3,87 1007 0,280 4,431005 0,279 4,43 1152 0,320 5,071128 0,313 4,96 1296 0,360 5,701244 0,346 5,48 1437 0,399 6,331352 0,376 5,95 1573 0,437 6,921452 0,403 6,39 1700 0,472 7,481540 0,428 6,78 1815 0,504 7,991615 0,449 7,11 1913 0,531 8,421676 0,466 7,38 1990 0,553 8,761722 0,478 7,58 2039 0,566 8,985OPTIMA DN32OPTIMA DN40OPTIMA DN50Pre-set Flow l/h Flow l/s Flow gpm0,50 465 0,129 2,050,75 692 0,192 3,051,00 921 0,256 4,051,25 1150 0,319 5,061,50 1377 0,382 6,061,75 1600 0,444 7,042,00 1816 0,504 7,992,25 2024 0,562 8,912,50 2221 0,617 9,782,75 2405 0,668 10,593,00 2574 0,715 11,333,25 2726 0,757 12,003,50 2858 0,794 12,583,75 2969 0,825 13,074,00 3056 0,849 13,45Flow l/h Flow l/s Flow GPM Flow l/h Flow l/s Flow GPM2022 0,562 8,90 2204 0,612 9,702825 0,785 12,44 3325 0,924 14,643538 0,983 15,58 4337 1,205 19,094179 1,161 18,40 5218 1,449 22,974758 1,322 20,95 5963 1,657 26,255279 1,466 23,24 6577 1,827 28,955741 1,595 25,27 7070 1,964 31,126139 1,705 27,03 7459 2,072 32,846470 1,797 28,48 7766 2,157 34,196729 1,869 29,62 8009 2,225 35,256916 1,921 30,44 8024 2,279 36,117033 1,954 30,96 8362 2,323 36,817090 1,969 31,21 8486 2,357 37,367105 1,974 31,28 8568 2,380 37,727105 1,974 31,28 8586 2,385 37,80UK Frese OPTIMA AUG 10www.frese.eu

TechnotePage 12 of 12Frese OPTIMA- pressure independent control & balancing valveDocumentation formularValve ID(own choise)Valve type Dimension Pre-setting Verified Δp[kPa]Min. Δp(see flow rate graph)[kPa]FlowPump type Regulation mode Set pointInstallationSignatureDateText for technical specificationsThe length of the modulating stroke shall be independent of flow setting.The modulation and flow setting shall be one combined unit with a linear modulating motion and a rotational flow settingmotion.The valve characterisation shall not be changed at different flow settings.The combined flow setting and modulating control unit shall be pressure independent.The Pressure Independent Control Valve shall contain a Differential Pressure Control Cartridge, and a combined flow setting andmodulating unit.The valve housing shall be hot stamped DZR brass CW602N.The valve shall have a spring made of stainless steel, a Diaphragm made of HNBR and O-rings made of EPDM.The valve housing shall be PN25 rated and suitable for 120°C.The valve shall have an external thread ISO 228 or internal ISO 7/1.The valve shall have a maximum operating differential pressure of 400 kPa (4 Bar)The valve shall have an external adjustable analogue step less presetting scale from minimum to maximum flow.P/T plugs shall be available as an option.The valve shall have a leakage rate at maximum 0,01% of max rated volumetric flow and comply to EN1349 Class IV.UK Frese OPTIMA AUG 10Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in thismaterial are the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

TechnotePage 1 of 7Frese OPTIMA actuatorApplicationProportional or 3-position modulating control of FreseOPTIMA valves in heating, ventilating and air conditioningsystems.Features actuator DN15-DN32• Nominal stroke range 2.0...5.5 mm.• 3-position or 0/2..10 V DC control signal.• The stroke is adapted automatically to the valve.• Direct assembly with union nut to the neck of the valve -no tools required.• Manual operation by using a standard 3 mm hexagonal key.• The actuator is short-circuit-proof and protected againstpolarity reversal.5• Plug-in cable for supply voltage and control signal.Features actuator DN40-DN50• Nominal stroke 6.5 mm.• 3-position or 0..10 V DC control signal• Direct assembly with union nut to the neck of the valve.• Manual operation by using adjusting handle.ApprovalUK Frese OPTIMA actuator AUG 10• Conformity to: EMC directive89/336/EEC,93/68/EEC• Low voltage directive73/23/EECwww.frese.eu

TechnotePage 2 of 7Frese OPTIMA actuatorTechnical data actuator DN15-DN32Supply voltage:See ”Types and Operation dataFrequency:50/60 HzManual operation:3 mm Hexagonal keyCable lenght: 1,5mProtection class:IP 40 acc. EN60529Ambient conditions: +1 0 C...50 0 C- Storage -5 0 C...50 0 C- Humidity 5...85% r.F.Weight:350 gNominal force: >250NInput impedance:> 100 k Ohm (DC 0/2...10v)Nominal stroke:5,5mmTechnical data actuator DN40-DN50Supply voltage:See ”Types and Operation dataFrequency:50 HzManual operation:Adjusting handleCable lenght:No cableProtection class:IP 54 acc. EN60529Ambient conditions: -5 0 C...50 0 C- Storage -5 0 C...50 0 C- Humidity 5...95% r.F.Weight:600 gNominal force: >400NInput impedance:> 100 k Ohm (DC 0...10v)Nominal stroke:6,5mmTypes and Operation DataTypesValveDim.FunctionRunning time(50 Hz)Supply voltagePowerConsumtionParallel operationNo. of actuator53-1045 DN15-DN32 DC 0..10 V 75s AC/DC 24 V +/- 25% 2,5 VA Max. 1053-1046 DN15-DN32 3 - position 150s/5.5mm AC 24 V +/- 20% 0,8 VA Max. 2453-1047 DN15-DN32 3 - position 150s/5.5mm AC 230 V +/- 15% 6 VA Max. 653-1050 DN15-DN32 DC 2..10 V 75s AC/DC 24 V +/- 25% 2,5 VA Max. 1053-1055 DN15-DN32 DC 0..10 V equal % 75s AC/DC 24 V +/- 25% 2,5 VA Max. 1053-1052 DN40-DN50 DC 0..10 V 43s/6,5mm AC 24 V +/- 20% 4,5 VA Max. 1053-1053 DN40-DN50 3 - position 43s/6,5mm AC 24 V +/- 20% 2,0 VA -53-1054 DN40-DN50 3 - position 170s/6,5mm AC 230 V +/- 15% 2,5 VA -OrderingWhen ordering, please give quantity, designation andtype code. Example - 1pc, 3-position valve actuator, 24V-150,53-1046.UK Frese OPTIMA actuator AUG 10www.frese.eu

TechnotePage 3 of 7Frese OPTIMA actuatorDN15-DN32Connection cablesSSD31FRS(53-1047)Control signal CLOSE (AC 230 V)Control signal OPEN (AC 230 V)NeutralSSD81FRS(53-1046)Control signal CLOSE (AC 24 V)Control signal OPEN (AC 24 V)System potential AC 24 VSSD61FRS(53-1045)(53-1050)(53-1055)Control signal DC 0/2 ... 10 VSystem neutral (- at DC 24 V)System potential AC 24 V (+ at DC 24 V)Connection diagramsSSD31FRS(53-1047)N ControllerY ActuatorL System potential AC 230VN System neutralY1, Y2 Control signal OPEN, CLOSEQ1, Q2 Controller contacts5SSD81FRS(53-1046)N ControllerY ActuatorSP, G System potential AC 24VSN, G0 System neutralY1, Y2 Control signal OPEN, CLOSEQ1, Q2 Controller contactsUK Frese OPTIMA actuator AUG 10www.frese.eu

TechnotePage 4 of 7Frese OPTIMA actuatorDN15-DN32Connection diagramsSSD61FRS(53-1045)(53-1050)(53-1055)NYSP, GSN, G0YControllerActuatorSystem potential AC/DC 24VSystem neutralControl signalFrese OPTIMA actuatorDN40-DN50Internal diagramsSQD35.00FRS(53-1054)Y1100%0%Y23AC 230 V, 3-PositionCm1End switch 100 % strokeCm2End switch 0 % strokec1Auxiliry switch ASC9.6 can be fittedLPotential free auxiliry terminalMCm1~Cm2 c111 N 12 L 4 54573G01UK Frese OPTIMA actuator AUG 10SQD85.03FRS(53-1053)Y1100%0%Y2MCm1~Cm2 c111 G 12 L 4 5390190www.frese.euAC 24 V, 3-PositionCm1End switch 100 % strokeCm2End switch 0 % strokec1Auxiliry switch ASC9.6 can be fittedLPotential free auxiliry terminal

TechnotePage 5 of 7Frese OPTIMA actuatorDN40-DN50Function /mechanical designThe reversible synchronous motor is driven by a 3-position or a proportional DC 0...10 V, DC 2...10 V or 0…1000 Ω control signal.The stroke is generated via an antilocking gear train.SQD35.00FRS (53-1054) & SQD85.03FRS (53-1053)SQD65FRS (53-1052)SQD85.03G Y1 Y2 11 12 L13-position control signal:Voltage at Y1Voltage at Y2No voltage at Y1 or Y24573Z191. Terminal strip 1. Terminal strip2. Connector ”lin” / ”log”3. R - M BridgeStem extends, valve opensStem retracts, valve closesActuator hold the current positionU M R Y G G 0DC 0/2…10 V or 0…1000 Ω control signal:The valve opens / closes in proportion to the controlsignal at Y or R.At DC 0 V or 0 Ω the valve is closed (A --> AB).When power supply is removed, the actuator maintains itscurrent position.5SQD65FRS(53-1052)Selecting the flowcharacteristic-positioncontrol signal:Connector S1 (under the cover, on the printed circuit board) can be repositioned tochange the flow characteristic of valves from «equal percentage» to «linear»; in allcases the flow characteristic relates to the through-port of the valve.Position of S1 S1 connected to A and C:equal-percentage flow characteristic(factory setting)S1 connected to B and C: linearflow characteristicUK Frese OPTIMA actuator AUG 10www.frese.euS1A C BC BR - MΩ4573Z02

TechnotePage 6 of 7Frese OPTIMA actuatorDN40-DN50Connection diagramsSQD35.00FRS (53-1054)L(L)AC 230 VQ1 Q2(N) (Y1) (Y2)Y1 Y24540A03N1N1 ControllerY1 Actuator SQD35.00FRSQ1, Q2 Controller contactsLSystem potential AC 230 VN System neutralNY1NSQD85.03FRS (53-1053)SP(G)Q1 Q2(G0) (Y1) (Y2)N1(G)Q1(G0) (Y1)Q2(Y2)N24505A02N1, N2 ControllerY1, Y2 Actuator SQD85.03FRSQ1, Q2 Controller contactsSP System potential AC 24 VSN System neutralAC 24 VY1Y2Y1Y2GY1GY2SNUK Frese OPTIMA actuator AUG 10SQD65FRS (53-1052)SPY...24 VDC 0...10 V0...1000 ΩN1GG0Y R MSNR M R1 R MF11 3 2Uwww.frese.euF2Y1P14540A01N1Y1R1F1F2P1SPSNControllerActuator SQD65FRSPosition indicator 0...1000 ΩFrost protection 0...1000 ΩFrost protection thermostatTerminals 1-3 Frost dangerTerminals 1-2 Normal operationPosition transmitter DC 0.....10VSystem potential AC 24 VSystem neutral

TechnotePage 7 of 7Frese OPTIMA actuatorConnection diagramsConnection terminalsSQD65FRS (53-1052)UMRYGG04573Z06Position indicator DC 0…10 VMeasuring neutral (= G0)Signal input 0…1000 ΩSignal input DC 0…10 VOperating voltage AC 24 V: system potential SPOperating voltage AC 24 V: system potential SNDimensionsActuator DN15-DN32SSD31FRS (53-1047)SSD81FRS (53-1046)SSD61FRS (53-1045)SSD61.2FRS (53-1050)SSD61EPFRS (53-1055)5Actuator DN40-DN50SQD35.00FRS (53-1054)SQD85.03FRS (53-1053)SQD65FRS (53-1052)12860 68804540M01UK Frese OPTIMA actuator AUG 10All dimensions in mm13412028 88Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.M30x1,5www.frese.eu111*32ø20.5(M20)Frese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 11Frese OPTIMA Compact- pressure independent balancing & control valveApplicationFrese OPTIMA Compact pressure independent balancing &control valve (PIBCV) is used in heating and cooling systemsin applications with Fan Coil Units, Chilled Beams or otherterminal unit applications.Frese OPTIMA Compact provides modulating controlwith full authority regardless of any fluctuations in thedifferential pressure of the system.Frese OPTIMA Compact combines an externally adjustableautomatic balancing valve, a differential pressure controlvalve and a full authority modulating control valve.Frese OPTIMA Compact makes it simple to achieve 100%control of the water flow in the building, while creating highcomfort and energy savings at the same time.An additional benefit is that no balancing is requiredif further stages are added to the system, or if thedimensioned capacity is changed.5Energy saving due to optimal control, lower flow andpump pressure. Maximized ∆T due to faster response andincreased system stability.BenefitsFeaturesUK Frese OPTIMA Compact MAR 12Design• Less time to define the necessary equipment for ahydraulic balanced system (only flow data are required)• No need to calculate valve authority. Always one.• Flexibility if the system is modified after the initialinstallationInstallation• No further regulating valves required in the distributionpipework when Frese OPTIMA Compact is installed atterminals.• Total number of valves minimized due to the 3-in-1design• Minimized commissioning time due to automaticbalancing of the system• No minimum straight pipe lengths required before orafter the valve.Operation• High comfort for the end-users due to highprecision temperature control• Longer life due to less movements of theactuatorwww.frese.eu• The presetting function has no impact on the stroke; Fullstroke modulation at all times, regardless the preset flow.• The constant differential pressure across the modulatingcontrol component guarantees 100% authority.• Automatic balancing eliminates overflows, regardless offluctuating pressure conditions in the system.• Thermal actuator On/Off or 0....10V, normally closed.• Electro mechanical actuator 0-10 V and 3 point control,normally closed• Differential pressure operating range up to 400 kPa• High flows with minimal required differential pressure dueto advanced design of the valve• Small dimensions due to compact housing• Higher presetting precision due to stepless analogue scale

TechnotePage 2 of 11Frese OPTIMA Compact- pressure independent balancing & control valve4 54231DesignThe design of Frese OPTIMA Compact combines highperformance with small size and compact construction.The main components of the valve are:1Differential pressure controlFunctionFrese OPTIMA Compact can be flushed and commissionedbefore the actuator is installed.The presetting of the dial is user-friendly requiring only asimple flow vs. presetting graph.23Modulating control componentPresetting scale (not accessible when the actuatoris mounted)a Flow range:Low-Highbb Stroke:2,5mm-4,0mm-5,0mm3Once the flow is set, the actuator can be mounted and thevalve ready to operate.For lowest energy consumption, check the differential pressureat the index valve to set the pump at minimum speed.UK Frese OPTIMA Compact MAR 124 P/T Plugs (Optional)5 ActuatorThermo Actuator3Pre-setting scaleActuator5Electro mechanicalActuator1 & 2Combined Pressure Control,Flow Balancing &Modulating Cartridge4aP/T plugs (optional)www.frese.euManual operationElectro mechanical actuatorsThe actuator can be operated manually with the help of a3mm hex key.NoteIf the operation is performed manually without disconnectingfrom the power, the supply must be disconnected and thenreconnected, whereby the actuator will start the calibrationprocess and correctly adjust itself.

TechnotePage 3 of 11Frese OPTIMA Compact- pressure independent balancing & control valveOperation principleThe innovative design of Frese OPTIMA Compact features amodulating control component that retains 100% authority at alltimes.With the Frese OPTIMA Compact, there are two independentmovements for the presetting and the modulating function.During presetting, the inlet area moves radially withoutinterfering with the length of the stroke. During modulating, theinlet area moves axial taking advantage of the full stroke.Whilst the control component provides proportionalmodulation irrespective of the preset flow, the automaticbalancing guarantees that the flow will never exceed themaximum preset flow.Regardless of pressure fluctuations in the system, themaximum flow is kept constant up to a maximumdifferential pressure of 400kPa.Flow rate vs. Differential PressureFlow (l/h)300250(Preset flow: 300 l/h, 150 l/h)2001501005050 100 200 300 400Differential pressure (kPa)Flow rate vs. Voltage(Preset flow: 300 l/h, 150 l/h)Flow (l/h)300250200150Pre-set432Strainer1005001 2 3 4 5 6 7 8 9 10Voltage (V)1Flow rate vs. Differential PressureFlow (l/h)30025010VUK Frese OPTIMA Compact MAR 12Ball Valve(Voltage: 10V, 8V, 5V)www.frese.eu2001501005008V5V100 200 300 400Differential pressure (kPa)

TechnotePage 4 of 11Frese OPTIMA Compact- pressure independent balancing & control valveTechnical dataValveValve housing and flow setting: DZR Brass, CW602NDP controller:PPS 40% glassSpring:Stainless steelDiaphragm:HNBRO-rings:EPDMPressure class:PN25Max. differential pressure: 400 kPaMedium temperature range: 0 0 C to 120 0 CThe pipe system shall be properly ventilated to avoid riskof air pockets. Glycolic mixtures up to 50% are applicable(both ethylene and propylene).Frese A/S can accept no responsibility if another actuatoris used instead of the Frese actuatorTechnical data57 102Thermoactuator57 129ElectromechanicalactuatorL1M/M with couplingsLLUK Frese OPTIMA Compact MAR 12Dimension & WeightValve Size DN10 DN15 DN20Type Thread M/M F/F M/M F/F M/M F/FLengthL 65 - 65 75 70 79L1 114 - 122 - 131 -Weight kgBasic 0.36 - 0.38 0.42 0.40 0.45P/T plugs 0.45 - 0.47 0.52 0.50 0.54FlowType Cartridge Low HighStroke mm 2.5 5.0 2.5 4.0 5.0l/h 30 - 200 65 - 370 100 - 575 160 - 990 220 - 1330Flow l/s 0.008 - 0.056 0.018 - 0.103 0.028 - 0.160 0.044 - 0.275 0.061 - 0.369gpm 0.13 - 0.88 0.29 - 1.63 0.44 - 2.53 0.70 - 4.36 0.97 - 5.85www.frese.eu

TechnotePage 5 of 11Frese OPTIMA Compact- pressure independent balancing & control valveTechnical data actuatorsCharacteristics:Thermo actuators, normally closedProtection class: IP 54 to EN 60529Frequency:50/60 HzControl signal:0-10V DC or On/OffActuating force:100 NStroke:2.5mm or 4.0 mmRunning time:120 s 0-10V/180 s On/OffAmbient operating conditions: 0 0 C to 60 0 CCable length:1.0 mWeight:100 gOn/Off actuator 2.5 & 4.0 mm stroke, 24V AC-DC/ On/Off 180s 48-5520On/Off actuator 2.5 & 4.0 mm stroke 230V AC/ On/Off 180s 48-5521Modulating actuator 4.0 mm stroke 24V AC/ 0-10V DC 30 s/mm 48-5522Modulating actuator 2.5 mm stroke 24V AC/ 0-10V DC 30 s/mm 48-5523Characteristics:Electrical, modulating, normally closedProtection class: IP 40 to EN 60529Frequency:50/60 HzControl signal:0-10V DC or 3 positionActuating force:100 NStroke max:5.0 mm (Selfcalibrating to all strokes)Running time:75 s 0-10V / 150 s 3-posAmbient operating conditions: +1 0 C to 50 0 CManual operation:3 mm Hexagonal keyCable length:1.5 mWeight:350 gModulating actuator 5,0 mm, 24V AC-DC/ 0-10V DC / 30 s/mm 53-1056Modulating actuator 5,0 mm, 24 V AC/ 3 pos / 60 s/mm 53-1057Modulating actuator 5,0 mm, 230 V AC/ 3 pos. / 60 s/mm 53-10585Product programUK Frese OPTIMA Compact MAR 12Size Cartridge Flow l/hDN10DN15DN20M/M M/M PT plugs F/F F/F PT plugsLow 2.5 mm 30-200 53-1300 53-1320 - -Low 5.0 mm 65-370 53-1309 53-1329 - -Low 2.5 mm 30-200 53-1302 53-1322 53-1342 53-1362Low 5.0 mm 65-370 53-1310 53-1330 53-1350 53-1370High 2.5 mm 100-575 53-1304 53-1324 53-1344 53-1364High 2.5 mm 100-575 53-1312 53-1332 53-1352 53-1372High 4.0 mm 160-990 53-1307 53-1327 53-1347 53-1367High 5.0 mm 220-1330 53-1308 53-1328 53-1348 53-1368www.frese.eu

TechnotePage 6 of 11Frese OPTIMA Compact- pressure independent balancing & control valveActuator requirementsCouplings 2 pcs, incl gasketDimension ”X” in closed position2.5 mm stroke = 11.4 mm4.0 mm stroke = 11.4 mm5.0 mm stroke = 9.2 mmActuator minimum force: 100NActuator connection: M30 x 1,5mmM30 x 1,5mmXMaterial:DZR Brass, CW602NSizeL1DN10 43-1330DN15 43-2330DN20 43-3330InsulationMaterial:EPS, Max temperature 80 0 CCombination matrix: Frese OPTIMA Compact / ActuatorsSizeDN10-15-20 38-0855Frese OPTIMA Compact can be combined with both Thermo actuatorsand Electro mechanical actuators.ThermoActuatorsElectro mechanicalActuatorsThe design of the valve, combined with the Frese actuator, produces aperfect control characteristic that utilises the full control range of thesystem.Male/Male ISO 228 Type / OPTIMA COMPACT Stroke Flow l/h DimensionOn/Off 0…10V 0…10V 3-Pos24V 230V 2,5mm 4,0 mm 24V 24V 230VDN10 M/M LOW 2,5 2,5 30-200 DN10 • • • • • •DN10 M/M LOW 5,0 5,0 65-370 DN10 • • •DN15 M/M LOW 2,5 2,5 30-200 DN15 • • • • • •DN15 M/M LOW 5,0 5,0 65-370 DN15 • • •DN15 M/M HIGH 2,5 2,5 100-575 DN15 • • • • • •DN20 M/M HIGH 2,5 2,5 100-575 DN20 • • • • • •DN20 M/M HIGH 4,0 4,0 160-990 DN20 • • • • • •DN20 M/M HIGH 5,0 5,0 220-1330 DN20 • • •UK Frese OPTIMA Compact MAR 12Female/Female ISO 7/1 Type / OPTIMA COMPACT Stroke Flow l/h DimensionDN15 F/F LOW 2,5 2,5 30-200 DN15 • • • • • •DN15 F/F LOW 5,0 5,0 65-370 DN15 • • •DN15 F/F HIGH 2,5 2,5 100-575 DN15 • • • • • •DN20 F/F HIGH 2,5 2,5 100-575 DN20 • • • • • •DN20 F/F HIGH 4,0 4,0 160-990 DN20 • • • • • •DN20 F/F HIGH 5,0 5,0 220-1330 DN20 • • •www.frese.eu

TechnotePage 7 of 11Frese OPTIMA Compact- pressure independent balancing & control valveFrese OPTIMA Compact Low 2,5 DN10/15l/s Flow0,056l/h200Kv (m 3 /h)min. Δp kPa0,1 0,2 0,4 0,515,80,0501800,04416015,40,0391400,0331200,02810014,90,022800,0176014,50,0110,006402014,3500012Pre-set34Frese OPTIMA Compact Low 5,0 DN10/15Flowl/s0,111l/h400Kv (m 3 /h)0,3 0,5 0,7min. Δp kPa0,917,20,08330016,50,05620015,7UK Frese OPTIMA Compact MAR 120,02801000012Pre-setwww.frese.eu3414,914,6

TechnotePage 8 of 11Frese OPTIMA Compact- pressure independent balancing & control valveFrese OPTIMA Compact High 2,5 DN15/20l/s Flow0,167l/h600Kv (m 3 /h)0,4 0,7 1,0min. Δp kPa1,318,50,13950017,60,1114000,08330016,60,05620015,50,02810014,900012Pre-set34Frese OPTIMA Compact High 4,0 DN20Flowl/s0,306l/h1100Kv (m 3 /h)0,6 1,2 1,6min. Δp kPa2,10,278100020,60,2509000,2220,19480070019,60,1676000,13950018,10,111400UK Frese OPTIMA Compact MAR 120,0830,0560,02803002001000012Pre-setwww.frese.eu3416,315,5

TechnotePage 9 of 11Frese OPTIMA Compact- pressure independent balancing & control valveFrese OPTIMA Compact High 5,0 DN20l/s Flow0,3890,361l/h140013000,8Kv (m 3 /h)1,52,1min. Δp kPa2,721,60,33312000,30611000,278100020,70,2509000,2228000,1940,16770060019,20,1395000,1110,0830,0560,02840030020010017,016,0500012Pre-set34Text for technical specificationsUK Frese OPTIMA Compact MAR 12The length of the modulating stroke shall be independent of flow setting.The modulation and flow setting shall be one combined unit with a linear modulating motion and a rotational flow settingmotion.The valve characterization shall not be changed at different flow settings.The combined flow setting and modulating control unit shall be pressure independent.The Pressure Independent Control Valve shall contain a combined flow setting, differential pressure control and modulatingbonnet assembly.The valve housing shall be hot stamped DZR brass CW602N.The valve shall have a spring made of stainless steel, a Diaphragm made of HNBR and O-rings made of EPDM.The valve housing shall be PN25 rated and suitable for 120°C.The valve shall have an external thread ISO 228 or internal ISO 7/1.The valve shall have a maximum operating differential pressure of 400 kPa (4 Bar)The valve shall have an external adjustable analogue step less presetting scale from minimum to maximum flow.P/T plugs shall be available as an option.The valve shall have a leakage rate at maximum 0,01% of max rated volumetric flow and comply to EN1349 Class IV.www.frese.eu

TechnotePage 10 of 11Frese OPTIMA Compact- pressure independent balancing & control valveSetting and FlowPre-set0,50,60,81,01,21,41,61,82,02,22,42,62,83,03,23,43,63,84,0OPTIMA Compact Low 2,5 DN10/15Flow l/h Flow l/s Flow gpm30 0,008 0,1335 0,010 0,1545 0,012 0,2054 0,015 0,2464 0,018 0,2874 0,020 0,3283 0,023 0,3793 0,026 0,41103 0,029 0,45113 0,031 0,50122 0,034 0,54132 0,037 0,58142 0,039 0,62151 0,042 0,67161 0,045 0,71171 0,047 0,75181 0,050 0,79190 0,053 0,84200 0,056 0,88OPTIMA Compact Low 5,0 DN10/15Flow l/h Flow l/s Flow gpm65 0,018 0,2983 0,023 0,37101 0,028 0,44119 0,033 0,52137 0,038 0,60155 0,043 0,68173 0,048 0,76191 0,053 0,84209 0,058 0,92226 0,063 1,00244 0,068 1,08262 0,073 1,15280 0,078 1,23298 0,083 1,31316 0,088 1,39334 0,093 1,47352 0,098 1,55370 0,103 1,63OPTIMA Compact High 2,5 DN15/20Flow l/h Flow l/s Flow gpmOPTIMA Compact High 4,0 DN20OPTIMA Compact High 5,0 DN20Pre-setFlow l/h Flow l/s Flow gpmFlow l/h Flow l/s Flow gpm0,60,81,01,21,41,61,82,02,22,42,62,83,03,23,43,63,84,0100 0,028 0,44128 0,036 0,56156 0,043 0,69184 0,051 0,81212 0,059 0,93240 0,067 1,06268 0,074 1,18296 0,082 1,30324 0,090 1,42351 0,098 1,55379 0,105 1,67407 0,113 1,79435 0,121 1,92463 0,129 2,04491 0,136 2,16519 0,144 2,29547 0,152 2,41575 0,160 2,53160 0,044 0,70209 0,058 0,92258 0,072 1,13306 0,085 1,35355 0,099 1,56404 0,112 1,78453 0,126 1,99502 0,139 2,21551 0,153 2,42599 0,167 2,64648 0,180 2,85697 0,194 3,07746 0,207 3,28795 0,221 3,50844 0,234 3,71892 0,248 3,93941 0,261 4,14990 0,275 4,36220 0,061 0,97285 0,079 1,26351 0,097 1,54416 0,116 1,83481 0,134 2,12546 0,152 2,41612 0,170 2,69677 0,188 2,98742 0,206 3,27808 0,224 3,56873 0,242 3,84938 0,261 4,131004 0,279 4,421069 0,297 4,711134 0,315 4,991199 0,333 5,281265 0,351 5,571330 0,369 5,85UK Frese OPTIMA Compact MAR 12www.frese.eu

TechnotePage 11 of 11Frese OPTIMA Compact- pressure independent balancing & control valveDocumentation formularValve ID(own choise)Valve type Dimension Pre-setting Verified Δp[kPa]Min. Δp(see flow rate graph)[kPa]Flow5Pump type Regulation mode Set pointUK Frese OPTIMA Compact MAR 12InstallationSignatureFrese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in thismaterial are the property of Frese A/S. All rights reserved.Datewww.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 7Frese EVA- on/off control & automatic balancing valveApplicationFrese EVA is a valve particularly designed for the balancingof cooling and heating units.With its simple on/off control the valve can be used formany different applications, and at the same time advantageis derived from the dynamic control principles.By means of Frese EVA the optimum flow rate is ensuredin each control area. This flow rate is maintained in spiteof pressure fluctuations in the system. A control area maybe two fan coils for a hotel room or a calorifier for a sportscentre.Energy savings due to automatic flow control, lower flowand pump pressure. Maximized ∆T due to faster responseand increased system stability.Benefits• Time consuming adjustment of the system is eliminated• The valve automatically ensures the hydraulic balance,regardless of changing pressure conditions in thesystemDesign• No need to use balancing valves in thedistribution lines, main distribution lines and supplylines• Less time to define the necessary equipment for ahydraulic balanced system• No impact if the calculated distribution of pressure inthe installation is not accurate• Security that the specified flow is also the real one• No requirements on pipe lengths before and after thevalveInstallation• Minimized commissioning time due to automatic balancingof the system• No need for oversized pumps and oversized controlvalvesFrese EVA with P/T plugs and Frese EVA Basic with actuatorsFeatures• Two valves in one. Replaces both the normal staticvalve (DRV) and two way valve• No requirement on pipe lenghts before and after thevalve• Small compact product• Built-in on/off function for electrically operated actuator(normally closed)• The valve can easily be fitted into the system• Integral optional P/T plugs on Frese EVA for needlesystem6UK Frese EVA AUG 10Operation• Energy savings due to elimination of overflows• Higher comfort due to correct distribution of water inthe system and to optimized function of the controlvalveswww.frese.eu

TechnotePage 2 of 7Frese EVA- on/off control & automatic balancing valveFunctionThe balancing occurs by means of a flow rate cartridge thatkeeps the differential pressure constant across an orifice.In the wanted control range the pump supplies sufficient differentialpressure to affect the spring and diaphragm ofthe cartridge.Frese EVA ensures the optimum flow in each control zone tomaintain the rated heat/cool transfer. This flow is maintainedregardless of pressure fluctuations in the system.See cartridge catalogue for further details.CartridgeIndication of flow rate on the orifice plateA four-digit number on the orifice plate is identical with thelast four digits in the Frese number. The cartridge can beidentified by means of this number and the correspondingflow rate can be read from the above flow rate tables.High PressureFrese no.Flow[gpm]Flow[l/s]Min.ΔP[kPa]49-11740 3.52 0.222 1649-11745 3.83 0.242 1949-11750 4.12 0.260 2149= HP High Pressure50= Low PressureText for technical specificationsUK Frese EVA AUG 10Housing:The Valve housing shall be made of Hot stamped Brass in DRquality. The valve shall regulate flow by means of a replaceablecartridge.Pressure rating of the valve housing shall be PN16 or PN25.The Kv Value of the valve housing inclusive the on/off controlunit shall be no less than 3,0.Control unit:The Valve shall be NC (normally closed)The valve shall be able to close completely against a DP of 4BarFlow Regulator:www.frese.euThe flow regulating Cartridge shall be made of brass in DRquality.The Cartridge shall offer the opportunity to change the flowby replacing an orifice plate without changing the entirecartridge.The Cartridge shall operate in one pressure range only throughoutthe entire hydraulic system.

TechnotePage 3 of 7Frese EVA- on/off control & automatic balancing valveProduct programme Frese EVA1. Frese EVA48-5803 48-5800 DN15 Kv 3,048-5804 48-5801 DN20 Kv 3,02.48-5805 48-5802 DN25 Kv 3,02. Actuator on/off, normally closed48-5515 24 volt3. CartridgeFrese no.49 or 50-xxxxFlowl/h48-5518 230 voltFlowl/sFlowgpmMin. DPkPaDP HousingkPaMin DP.totalkPa1.11150 25 0,007 0,11 7 0 711170 36 0,010 0,16 7 0 711190 43 0,012 0,19 7 0 711210 55 0,015 0,24 7 0 73.11230 75 0,021 0,33 8 0 811260 84 0,023 0,37 9 0 911290 104 0,029 0,46 10 0 1011300 114 0,032 0,50 10 0 10AccessoriesStrainerBall Valve11320 129 0,036 0,57 11 0 1111350 154 0,043 0,68 11 0 1111370 175 0,049 0,77 12 0 1211400 204 0,057 0,90 12 0 1211430 241 0,067 1,06 12 1 1311460 279 0,078 1,23 12 1 1311490 320 0,089 1,41 13 1 1411510 350 0,097 1,54 13 1 1411540 400 0,111 1,76 13 2 1511570 477 0,133 2,10 14 3 1711620 545 0,151 2,40 14 3 1711725 615 0,171 2,71 14 4 1811730 670 0,186 2,95 14 5 1911735 736 0,204 3,24 14 6 2011740 799 0,222 3,52 16 7 2311745 870 0,242 3,83 19 8 2711750 936 0,260 4,12 21 10 3120700 1020 0,283 4,49 22 12 3420740 1081 0,300 4,76 22 13 3520770 1195 0,332 5,26 22 16 3820820 1335 0,371 5,88 23 20 4320860 1483 0,412 6,53 23 24 4720880 1581 0,439 6,96 23 28 51Extension piece for actuatorh = 20 mm 48-5557StrainerDN15 41-1132DN20 41-1142DN25 41-1152Ball ValveDN15 38-5020DN20 38-5022DN25 38-5024Strainer Ball ValveDN15 38-5040DN20 38-5041DN25 38-5042Spindle ExtensionDN15/20 46-1072DN25 46-1073P/T-plugs1/4” x 60mm 48-0012Combidrain1/4” x 60mm 46-10736UK Frese EVA AUG 1020920 1774 0,493 7,81 24 35 5920940 1833 0,509 8,07 24 37 6120990 2080 0,578 9,16 25 48 7321030 2251 0,625 9,91 26 56 8221060 2319 0,644 10,21 27 60 8721090 2448 0,670 10,78 28 67 95www.frese.eu

TechnotePage 4 of 7Frese EVA Basic- on/off control & automatic balancing valveProduct programme Frese EVA BasicUK Frese EVA AUG 101. Frese EVA BasicStrainerBall Valve48-5803 48-5806 DN15 Kv 3,02. Actuator on/off, normally closed3. CartridgeFrese no.49 or 50-xxxxFlowl/h48-5515 24 volt48-5518 230 voltFlowl/sFlowgpmMin. DPkPaDP HousingkPaMin DP.totalkPa11150 25 0,007 0,11 7 0 711170 36 0,010 0,16 7 0 711190 43 0,012 0,19 7 0 711210 55 0,015 0,24 7 0 711230 75 0,021 0,33 8 0 811260 84 0,023 0,37 9 0 911290 104 0,029 0,46 10 0 1011300 114 0,032 0,50 10 0 1011320 129 0,036 0,57 11 0 1111350 154 0,043 0,68 11 0 1111370 175 0,049 0,77 12 0 1211400 204 0,057 0,90 12 0 1211430 241 0,067 1,06 12 1 1311460 279 0,078 1,23 12 1 1311490 320 0,089 1,41 13 1 1411510 350 0,097 1,54 13 1 1411540 400 0,111 1,76 13 2 1511570 477 0,133 2,10 14 3 1711620 545 0,151 2,40 14 3 1711725 615 0,171 2,71 14 4 1811730 670 0,186 2,95 14 5 1911735 736 0,204 3,24 14 6 2011740 799 0,222 3,52 16 7 2311745 870 0,242 3,83 19 8 2711750 936 0,260 4,12 21 10 3120700 1020 0,283 4,49 22 12 3420740 1081 0,300 4,76 22 13 3520770 1195 0,332 5,26 22 16 3820820 1335 0,371 5,88 23 20 4320860 1483 0,412 6,53 23 24 4720880 1581 0,439 6,96 23 28 5120920 1774 0,493 7,81 24 35 5920940 1833 0,509 8,07 24 37 6120990 2080 0,578 9,16 25 48 7321030 2251 0,625 9,91 26 56 8221060 2319 0,644 10,21 27 60 8721090 2448 0,670 10,78 28 67 95www.frese.eu1.AccessoriesExtension piece for actuatorh = 20 mm 48-5557StrainerDN15 41-1132Ball ValveDN15 38-5020Strainer Ball ValveDN15 38-5040Spindle ExtensionDN15/20 46-1072Compression coupling39-1432 DN15 x Ø8 mm39-1433 DN15 x Ø10 mm39-1434 DN15 x Ø12 mm39-1435 DN15 x Ø15 mmPEX coupling31-2021 DN15 for Ø12 x 2 mm31-2031 DN15 for Ø15 x 2,5 mm31-2041 DN15 for Ø16 x 2 mmAlu-PEX coupling31-2441 DN15 for Ø16 x 2 mmPress coupling31-2831 DN15 for Ø15 mm2.3.

TechnotePage 5 of 7Frese EVA- on/off control & automatic balancing valveTechnical data Frese EVAValve Housing:DZR Brass, CW602NO-rings:EPDMPressure class:PN25Temperature:0 to + 95 0 CAmbient temperature: 0 to + 50 0 CFlow range: See page 3Max. differential pressure: 400 kPaWeight:0,7 kgDimension packagingin mm: 135 x 115 x 857,7Glycolic mixtures (both ethylene and propylene) up to 50%are applicable with Frese Alpha. Strainer is recommended.The pipe system should be properly ventilited to avoid therisk of air-pockets. See application example.Valve height incl.actuator = 135 mmLenght of stroke = 2,5 mmFrese A/S assumes no responsibility if anotheractuator than the Frese actuator is used.DimensionsDN15 DN20 DN25L 102 110 1196Technical data Frese EVA BasicValve Housing:DZR Brass, CW602NO-rings:EPDMPressure class:PN16Temperature:0 to + 95 0 CAmbient temperature: 0 to + 50 0 CFlow range: See page 3Max. differential pressure: 400 kPaWeight:0,7 kgDimension packagingin mm: 135 x 115 x 85Glycolic mixtures (both ethylene and propylene) up to 50%are applicable with Frese Alpha. Strainer is recommended.The pipe system should be properly ventilited to avoid therisk of air-pockets. See application example.Valve height incl.actuator = 135 mmLenght of stroke = 2,5 mmUK Frese EVA AUG 10Frese A/S assumes no responsibility if anotheractuator than the Frese actuator is used.www.frese.eu

TechnotePage 6 of 7Frese EVA- on/off control & automatic balancing valveElectric DiagramExample: You may let the valve signal run the fan engineof the unit, so that the fan engine is not running when thevalve is closed.The valve is ”normally closed”. The power consumption ofthe actuator is 2 Watt.Application ExampleThe system is easily adjusted by adjusting the pump inaccordance with the required differential pressure acrossthe critical valve.When this differential pressure is achieved, the system willautomatically be balanced.Min. Differential pressure = the lower limit of the operatingrange of the Alpha flow cartridge plus the pressure drop ofthe EVA valve at design flow.See required min. Pressure of the cartridge on page 3.UK Frese EVA AUG 10www.frese.eu

TechnotePage 7 of 7Frese EVA- on/off control & automatic balancing valveDocumentation formularValve IDValve type(EVA)Dimension[DN]Cartridge No.DP Pmeasured[kPa]Min. DP P[kPa]Flow[l/h]6Pump typeRegulation formSet pointInstallationSignatureDateUK Frese EVA AUG 10Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnoteFrese EVA actuatorType48-5515 48-5518On/off On/off On/offPower supply 24V AC/DC 230V ACPower consumption 1.8W 1.8WClosing and opening time Approx. 3 min. Approx. 3 min.Actuator travel 4 mm 4 mmForce 100N 100NAmbient temperature 0-60 0 C 0-60 0 CDesignNormally closedNormally closedProtection IP 54 IP 54Colour of housing Greyish white Greyish white6Valve adapter Included IncludedWeight (without adapter incl. 1m wire) 100 g 100 gConnection wire 2 x 0,75 mm 2 PVC 2 x 0,75 mm 2 PVCLenght of wire 1,0 m 1,0 mUK Frese EVA Actuator APR 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 7Frese MODULAComplete solutions for balancing and temperature controlApplicationThe Frese MODULA is a compact and versatile valve systemthat combines the Frese range of automatic flow, pressureand temperature control valves with isolation, flushing, drainingand measurement components within a prefabricated,tested and ready to install terminal connection assembly.The Frese MODULA integrates one of the following Fresepressure independent solutions:• Frese ALPHA (Dynamic balancing valve)•• Frese S (Adjustable dynamic balancing valve)• Frese EVA (Combined dynamic balancing and 2 porton/off valve)• Frese OPTIMA and Frese OPTIMA Compact (PressureIndependent Control Valve - PICV)• Frese PV (Adjustable Differential Pressure Control Valve)With isolation valves, strainer, drain/hose connection & P/Tplug.BenefitsThe Frese MODULA assembly combines the benefits ofFrese OPTIMA, EVA and ALPHA in addition to:Design• Minimized design time and risks due tocomplete solution• Guaranteed performance of the completesystem• Compact design for limited space availabilityInstallation• Minimized installation and commissioningcosts• Allows easy flushing and coil isolation• Easy lagging of spindle extensions• Simple attachment to existing hangers• Integrated fitting lug for ease of installationFeatures• Available in ½”, ¾” and 1” end connections• Patented Frese ALPHA, Frese S, Frese PV, Frese EVAFrese OPTIMA or Frese OPTIMA Compact technology• Compact 80mm/130mm/170mm supply/return centres• Integrated union joints for easy valve alignment• ¾” T-handle isolation-valves for flow, return and bypass.Full port valves on flow and return• Spindle extensions available• Combinations with strainer, drain/hose connection, P/Tplug available7UK Frese MODULA JUN 11Operation• High comfort with minimized operation andmaintenance costsFor a full understanding of ALPHA, EVA, S, PV OPTIMA andOPTIMA Compact solutions please refer to the relevantTechnotes.www.frese.eu

TechnotePage 2 of 7Frese MODULAComplete solutions for balancing and temperature controlUK Frese MODULA JUN 11www.frese.eu

TechnotePage 3 of 7Frese MODULAComplete solutions for balancing and temperature control55 MODULA II Kit1 Frese OPTIMA2 Frese ALPHA3 Frese EVA4 Frese EVA Basic5 Frese S6 Fres PV7 Frese OPTIMA Compact1 DN15 - 80mm 4 DN15 - 130mm 7 DN15 - 170mm2 DN20 - 80mm 5 DN20 - 130mm 8 DN20 - 170mm3 DN25 - 80mm 6 DN25 - 130mm 9 DN25 - 170mm1 T-piece with 1” P/T-plug + drain and hose2 T-piece with 1” P/T-plug + drain, hose and extension handle3 Strainer with 1” P/T-plug + drain and hose4 Strainer with 1” P/T-plug + drain, hose and extension handle5 T-piece with 1” P/T- plug/plug6 T-piece with 1” P/T- plug/plug and extension handle7 Strainer with 1” P/T- plug/plug8 Strainer with 1” P/T- plug/plug and extension handleA T-piece with 1” P/T-plug + drain and hose (Left hand mount)B T-piece with 1” P/T-plug + drain, hose and extension handle (Left hand mount)C Strainer with 1” P/T-plug + drain and hose (Left hand mount)D Strainer with 1” P/T-plug + drain, hose and extension handle (Left hand mount)E T-piece with 1” P/T-plug/plug (Left hand mount)F T-piece with 1” P/T-plug/plug and extension handle (Left hand mount)G Strainer with 1” P/T-plug/plug (Left hand mount)H Strainer with 1” P/T-plug/plug and extension handle (Left hand mount)71 1” P/T Plug on valve2 2” P/T Plug on valve3 PlugL Low FlowH High Flow4 Low Pressure5 High Pressure55 X X X X XXXXXFlow in l/sec. (X.XXX)UK Frese MODULA JUN 11ValveSize/CenterModula IIcombinationValve plugFlow/PressureCartridgeExample of order combination: 551-12-1-LSpecification text Frese MODULA:The valve system shall combine a dynamic balancing valve with a fixed 80mm distance supply/returncomponent. The balancing valve can also be a combination valve for dynamic balancing and control.Frese ALPHA, EVA, ALPHA Cartridges, OPTIMA (see corresponding technote).www.frese.eu

TechnotePage 4 of 7Frese MODULAComplete solutions for balancing and temperature controlMODULA - ALPHADN15 DN20 DN25A 79 87 97C 63/102 63/102 63/102 1” PT/2” PTD 231 231 239E 211 230 257F 249 266 293G 41/88 41/88 41/88 Std. Handle/Ext HandleH 80/130/170GHMODULA - EVADN15 DN20 DN25A 85 85 85B 79 87 97C 59/98 59/98 59/98 1” PT/2” PTD 256 256 264E 211 230 257F 249 266 293G 41/88 41/88 41/88 Std. Handle/Ext HandleH 80/130/170GHMODULA - OPTIMADN15 DN20 DN25A 298 298 298B 79 87 97C 66/100 66/100 66/100 1” PT/2” PTD 243 243 251E 211 230 257F 249 266 293G 41/88 41/88 41/88 Std. Handle/Ext HandleUK Frese MODULA JUN 11GHH 80/130/170www.frese.eu

TechnotePage 5 of 7Frese MODULAComplete solutions for balancing and temperature controlABDEFMODULA - PVDN15 DN20 DN25A 70 73 91B 79 87 97D 250 251 257E 211 230 257F 249 266 293G 41/88 41/88 41/88 Std. Handle/Ext HandleH 80/130/170GHABDEFMODULA - SDN15 DN20 DN25A 96 98 102B 79 87 97D 250 251 257E 211 230 257F 249 266 293G 41/88 41/88 41/88 Std. Handle/Ext HandleH 80/130/1707GHUK Frese MODULA JUN 11MODULA - OPTIMA CompactDN15 DN20 DN25A 142 142 -B 79 87 -D 252 256 -E 211 230 -F 249 266 -G 41/88 41/88 - Std. Handle/Ext HandleH 80/130/170www.frese.eu

TechnotePage 6 of 7Frese MODULAComplete solutions for balancing and temperature controlFrese ALPHA - MODULAFrese S - MODULAFrese EVA - MODULAFrese OPTIMA - MODULAFrese PV - MODULAFrese OPTIMA Compact - MODULAUK Frese MODULA JUN 11www.frese.eu

TechnotePage 7 of 7Frese MODULAComplete solutions for balancing and temperature controlRight hand version OPTIMALeft hand version OPTIMA7NOTE:CENTER CONNECTION JOINTSSHOULD NOT BE DISASSEMBLEDAS THIS CAN DAMAGE THEINTERNAL SEALUK Frese MODULA JUN 11Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 12Frese PV- adjustable differential pressure control valveApplicationFrese PV can be installed in domestic and commercialheating and cooling systems.The valve is a dynamic, adjustable differential pressurecontrol valve (DPCV) that ensures the differential pressureacross the load or circuit is constant.The valve ensures good modulating control and reducesthe risk of noise from thermostatic radiator valves and2-port control valves.Frese PV can be installed in conjunction with Frese S (adjustableflow limiter) to provide 100% control of the flow anddifferential pressure regardless of pressure fluctuations inthe system. See PVS Technote.Benefits• The valve offers three in-built functions: adjustabledifferential pressure control, isolation and P/T plugs forpressure verification• Frese PV eliminates noise problems caused by overpressure• Differential pressure can be set and adjusted on site• Tamper-proof presetting device on top of the valve,meaning there is no need for the valve sealing afterpresetting• Presetting is simple using the graphs shown on pages9-13Features• Maximum differential pressure: 400 kPa• Removable ΔP cartridge allows forward as well as backflushing• Size range: DN15 to DN50• Maximum flow: 15m 3 /h• Built-in P/T plugs for ΔP verification8UK Frese PV JUN 11www.frese.eu

TechnotePage 2 of 12Frese PV- adjustable differential pressure control valveSetting the valveThe valve is easily set by means of a 4mmhexagonal key. The flow rate of the valve canbe determined from the flow rate graphs forthe valve dimension in question.See the flow rate graphs of the valve on pages9 and 13 for further information about thePre-setting.To set the valve to the desired downstreamdifferential pressure, the valve should be setat the minimum position and then adjusted inaccordance with the presetting graphs.Higher ΔpLower ΔpDesignFrese PV consists of a differential pressureregulation unit, isolating ball valve, P/T-plugsand partner valve which is installed in theflow.Frese PV system fem./fem. with union and isolation ball valveSimplified outline Frese PVFlowRadiator valveswith presettingAdjustable DPCVUK Frese PV JUN 11www.frese.eu

TechnotePage 3 of 12Frese PV- adjustable differential pressure control valveTechnical dataHousing:DP controller:Flow setting:Spring:Diaghragm:O-rings:Pressure class:Max. differential pressure:Temperature range:Capillary tube:DZR, BrassPPS 40% glassPPOStainless steelHNBREPDMPN16400 kPa-10 0 C to + 120 0 CØ3, L = 1000mmH2FlowL1LReturnH1HFrese PV System - Valve combination, capillary tube, isolation ballvalve at the supply- and return line.TypeApplicationFrese PVTwo pipe systemsDimension DN15 DN20 DN25 DN32 DN40 DN50Control range [kPa] 5-30 20-60 5-30 20-60 5-30 20-60 20-80 20-80 20-80[l/s] 0,014-0,167 0,028-0,333 0,028-0,278 0,042-0,556 0,167-0,694 0,194-1,167 0,278-1,389 0,833-2,222 1,389-4,167Flow rate [l/h] 50-600 100-1200 100-1000 150-2000 600-2500 700-4200 1000-5000 3000-8000 5000-15000gpm 0,22-2,65 0,44-5,29 0,44-4,41 0,66-8,82 2,65-11,02 3,09-18,52 4,41-22,05 13,23-35,27 22,05-66,14Dimension mm L 167 173 232 235 257 286H 127 130 166 166 184 196H1 70 73 91 91 97 106L1 75 82 95 100 108 127H2 95 103 111 135 145 164Accuracy +/- 7% +/- 7% +/- 7% +/- 7% +/- 7% +/- 7%Kvs 3,6 4 9,5 11,4 16,4 17,98UK Frese PV JUN 11www.frese.eu

TechnotePage 4 of 12Frese PV- adjustable differential pressure control valveExampleOutline of the heating system in one of the sections. 5 staircases with 4 flats each. Pump and tank farther away thanindicated in the example.1 st floorGround floorBasementEvidently the pressure will be higher inthe supply pipes near the pump than e.g.in the critical pipe.In this case the purpose of Frese PV isto maintain pressure of approx. 12 kPaacross the supply and the return line.Specifying the characteristics of the building,the calorific requirement was ratedat 125 l/h per flat.Motor valves were chosen for the controlof the flow. The Kvs-value of these shouldbe as close to 0.36 m 3 /h as possible.(125 l/h and 12 kPa),Q = Kv * √Δp.Index CircuitAs already mentioned a differential pressureof 12 kPa should be maintained at aflow of 4 x 125 = 500 l/h.From the scheme on page 3, whichshows the technical data of Frese PV, aFrese PV DN15 will be suitable for thepurpose.UK Frese PV JUN 11www.frese.eu

TechnotePage 5 of 12Frese PV- adjustable differential pressure control valveExampleThe adjustment setting of the Frese PV + valve isspecified on the basis of the graph. In order to makereading easier the graphs indicating the pressure inthe circuit are arranged at intervals of 5 kPa. Still, thegraphs can be offset according to the specified pressureof 12 kPa in our circuit.In the given example we want to maintain 12 kPa inthe circuit at a flow rate of 500 l/h. From the intersectionof the 12 kPa graph and the horizontal lineindicating 500 l/h a line perpendicular to the x-axis ismade to read the pre-set value. Now you will see thatthe valve is to be pre-set by app. 7 turns on the scale.The minimum pressure drop required will be 1.9 kPaacross the valve.Consequently, the total pressure drop required whenrating the pump will be:ΔP P= ΔP S+ ΔP V= 12 + 1.9 = 13.9 kPa.Now the pump can be throttled to operate at its optimum,by measuring from P Fto P- (ΔP pump).To verify that the calculated secondary pressure dropacross the circuit is correct, measurements can becarried out from P Fto P+ , and should read 12 kPa asdimensioned.Measurement of the differential pressure across the valveFrese PVP FP- P+Flow rate graph - Frese PV DN15Flow l/s0,167Flow l/h600Δp acrossPV valvekPa2,80,1395001,980,1114005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa1,20,0833000,70,0562000,30,0281000,1UK Frese PV JUN 11000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]www.frese.eu

TechnotePage 6 of 12Frese PV- adjustable differential pressure control valveExamplePlease note:As the flow is reduced in the circuitin question the pressure increases inreverse ratio to the flow, which is due tothe P-band of the adjustment spring. Thevalve still compensates for this. However,the pressure will nowhere in the circuitbe as high as the pump pressure thatwould have been available if Frese PVhad not been installed.In this example the pressure increases toapprox. 14 kPa as the graph is offset parallelto the course of flow. Furthermore,you can always read from the graph whatthe pressure in the circuit will be like atany flow rate below the rated 500 l/h.Flow l/s0,167Flow l/h600Flow rate graph - Frese PV DN15Δp acrossPV valvekPa2,80,1395001,90,1114005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa1,20,0833000,70,0562000,30,0281000,1000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]UK Frese PV JUN 11www.frese.eu

TechnotePage 7 of 12Frese PV- adjustable differential pressure control valveProduct programme PVWith isolation ball-valves, 2drain valves, plug, capillarytube and union connection. 53-3000(5-30 kPa)Dimension DN15 DN20 DN25 DN32 DN40 DN5053-3001(5-30 kPa)53-3002(5-30 kPa)53-3003(20-80 kPa)53-3004(20-80 kPa)53-3005(20-80 kPa)With isolation ball-valves, 1”P/T plugs, capillary tube andunion connection.53-3010(5-30 kPa)53-3016(20-60 kPa)53-3011(5-30 kPa)53-3017(20-60 kPa)53-3012(5-30 kPa)53-3018(20-60 kPa)53-3013(20-80 kPa)53-3014(20-80 kPa)53-3015(20-80 kPa)AccessoriesFrese no.Insulation jackets 38-084538-085438-0856PVPVVCDim./DN15/20/2532/40/5015/20/2538-0848VC 32/40/50Spindle extension 46-107215/2046-10732546-107432/4046-107550Frese capillary tube48-00043mm x 1000 mmDrain valve 48-0009 1/4” x 1/28Plug 09-0548Combi drain valve 48-0015 1/4” x 1/2P/T plugsBlue strip48-001248-001348-00141/4” x 1”1/4” x 2”1/4” x 4”UK Frese PV JUN 11Red stripFrese manometer 2023PDigital differential pressuremanometer hose kit andneedles.Hose kit incl. needleswww.frese.eu48-001848-001948-002148-002248-00161/4” x 1”1/4” x 2”1/4” x 4”

TechnotePage 8 of 12Frese PV DN15, 5-30 kPaFrese PV- adjustable differential pressure control valveFlow l/s0,167Flow l/h600Δp acrossPV valvekPa2,80,1395001,90,1114005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa1,20,0833000,70,0562000,30,0281000,1000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]Frese PV DN15, 20-60 kPaFlow l/s0,333Flow l/h1200Δp acrossPV valvekPa11,10,27810007,70,22280020 kPa30 kPa40 kPa50 kPa60 kPa4,90,1676002,80,1114001,20,0562000,3000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16UK Frese PV JUN 11Setting [Number of turns]www.frese.eu

TechnotePage 9 of 12Frese PV DN20, 5-30 kPaFrese PV- adjustable differential pressure control valveFlow l/s0,278Flow l/h1000Δp acrossPV valvekPa6,30,2509005,10,2228004,00,1940,1677006005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa3,12,30,1395001,60,1114001,00,0833000,60,0562000,30,0281000,1002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]0,018Frese PV DN20, 20-60 kPaFlow l/s0,556Flow l/h2000Δp acrossPV valvekPa25,00,5000,4441800160020,316,080,3890,3331400120020 kPa30 kPa40 kPa50 kPa60 kPa12,39,00,27810006,30,2228004,00,1676002,30,1114001,00,0562000,3002 3 4 5 6 7 8 9 10 11 12 13 14 15 160,017 18UK Frese PV JUN 11Setting [Number of turns]www.frese.eu

TechnotePage 10 of 12Frese PV DN25, 5-30 kPaFrese PV- adjustable differential pressure control valveFlow l/s0,694Flow l/h2500Δp acrossPV valvekPa6,90,55620004,40,41715005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa2,50,27810001,10,1395000,3002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17180,019 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36Setting [Number of turns]Frese PV DN25, 20-60 kPaFlow l/sFlow l/hΔp acrossPV valvekPa1,111400017,70,972350013,50,833300020 kPa30 kPa40 kPa50 kPa60 kPa10,00,69425006,90,55620004,40,41715002,50,27810001,10,1395000,3002 3 4 5 6 7 8 9 10 11 12 13 14 15 160,017 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33UK Frese PV JUN 11Setting [Number of turns]www.frese.eu

TechnotePage 11 of 12Frese PV DN32, 20-80 kPaFrese PV- adjustable differential pressure control valveFlow l/s1,389Flow l/h5000Δp acrossPV valvekPa19,21,250450015,61,111400012,30,9720,8333500300020 kPa30 kPa40 kPa50 kPa60 kPa70 kPa80 kPa9,46,90,69425004,80,55620003,10,41715001,70,27810000,80,1395000,2000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34Setting [Number of turns]Frese PV DN40, 20-80 kPaFlow l/s2,222Flow l/h8000Δp acrossPV valvekPa23,81,944700018,281,6671,3896000500020 kPa30 kPa40 kPa50 kPa60 kPa70 kPa80 kPa13,49,31,11140005,90,83330003,30,55620001,50,27810000,4002 3 4 5 6 7 8 9 10 11 12 13 14 15 160,017 18 19 20 21 22 23 24 25 26 27 28 29UK Frese PV JUN 11Setting [Number of turns]www.frese.eu

TechnotePage 12 of 12Frese PV DN50, 20-80 kPaFrese PV- adjustable differential pressure control valveFlow l/sFlow l/hΔp acrossPV valvekPa3,889 1400061,23,333 1200044,92,778 1000020 kPa30 kPa40 kPa50 kPa60 kPa70 kPa80 kPa31,22,222800020,01,667600011,21,11140005,00,55620001,2002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18Setting [Number of turns]0,019 20 21 22 23 24 25 26 27 28Text for technical specificationsThe valve should be a dynamic difference control valve with the option of setting the differential pressure on site without suspensionof operation.The valve should limit the differential pressure in a circuit.The valve should include optional P/T plugs for the verification of differential pressure in circuit and across the valve.The valve scale should only be adjustable by means of a key.The valve should be permanently marked with an indicator for flow direction.Pressure rating PN16.UK Frese PV JUN 11Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

TechnotePage 1 of 15Frese PVS- dynamic pressure and flow regulation valveApplicationFrese PVS system can be installed in domestic and commercialheating and cooling systems.Frese PVS system is a dynamic valve arrangement designedto regulate flow and differential pressure using the Frese Sdynamic balancing valve positioned in the flow, and theFrese PV differential pressure control valve positioned in thereturn.The PVS is supplied with capillary tube, isolation valves,drain valves, P/T plugs and unions as standard.Frese PVS system ensures 100% flow and differential pressureregulation under all conditions, irrespective of anychanges within the system, providing simple and troublefree commissioning.The Frese PVS system operates by limiting the flow in thesystem and eliminating any noise caused by excess differentialpressure.BenefitsFeatures• Flow and differential pressure can be adjusted independentlyof each other.• Setting the differential pressure can be easily adjustedafter installation.• Tamperproof presetting device fitted on the top of thevalve.• Simple presetting of flow and pressure.• No additional commissioning required if the system designis changed.• High levels of comfort and energy savings for the enduser.• Size range: DN15 to DN50• Maximum flow: 10.3m 3 /h• Maximum differential pressure 250kPa/400kPa• Setting range: 5kPa to 80kPa• Differential pressure regulation, flow regulation, isolation,drain and PT plugs as standard8UK Frese PVS DEC 09www.frese.eu

TechnotePage 2 of 15Frese PVS- dynamic pressure and flow regulation valveDesign Frese PVSSimplified outline Frese PVSFrese SAdjustable DynamicBalancing ValveFlowSystemFrese PVAdjustable DifferentialPressure Control ValveReturnFrese PVS system measurement of differential pressure and flow across the valveFrese SFlowDesign flow: Q is adjusted directly on Frese S (seegraphs on the Pre-set diagram)Differential pressure : ΔP Sis adjusted directly onFrese PV (see graphs on the Pre-set diagram)ReturnFrese PVP F-The flow in the system is verified by measuringminimum differential pressure (min. Δp) is avaliableacross the Frese S valve.Measured from P F+to P F-(see graphs on the Presetdiagram)UK Frese PVS DEC 09P F+P +P -www.frese.euΔp of the system is measured from P F-to P +.

TechnotePage 3 of 15Frese PVS- dynamic pressure and flow regulation valveTechnical dataHousing:DP controller:Flow setting:Spring:Diaghragm:O-rings:Pressure class:Max. differential pressure:Temperature range:Capillary tube:DZR, Brass CW602NPPS 40% glassPPOStainless steelHNBREPDMPN16LP = 250 kPaHP = 400 kPa-10 0 C to + 120 0 CØ3, L = 1000 mmFlowL1H2ReturnH1H3HLTypeFrese PVSApplicationTwo-pipe systemDimension DN15 DN20 DN25 DN32 DN40 DN50Version LP HP LP HP LP HP HP HP HPControl range [kPa] 5-30 20-60 5-30 20-60 5-30 20-60 20-80 20-80 20-80Pressure range [kPa] 9-250 22-400 9-250 22-400 12-250 22-400 38-400 45-400 54-400PV 0,014-0,167 0,028-0,333 0,028-0,278 0,042-0,556 0,167-0,694 0,194-1,167 0,278-1,389 0,833-2,222 1,389-4,167Flow rate [l/s] S 0,007-0,223 0,011-0,306 0,011-0,351 0,018-0,512 0,017-0,462 0,025-0,653 0,060-1,328 0,049-2,067 0,122-2,868PVS 0,014-0,167 0,028-0,306 0,028-0,278 0,042-0,512 0,167-0,462 0,194-0,653 0,278-1,328 0,833-2,067 1,389-2,868Dimension mm L 167 173 232 235 257 286H 127 130 166 166 184 196H1 70 73 91 91 97 106L1 167 173 202 235 257 286H2 96 98 102 115 119 126H3 148 151 155 188 206 2198UK Frese PVS DEC 09www.frese.eu

TechnotePage 4 of 15Frese PVS- dynamic pressure and flow regulation valveProduct programme PVSFrese PVS with 2isolation valves, 2drain valves, P/Tplugs, capillarytube and unionconnections.Dimension DN15 DN20 DN25 DN32 DN40 DN50Frese PVS - LP53-3040Frese PV, 5-30 kPa& Frese S, LPFrese PVS - HP53-3026Frese PV, 20-60 kPa& Frese S, HPFrese PVS - LP53-3041Frese PV, 5-30 kPa& Frese S, LPFrese PVS - HP53-3027Frese PV, 20-60 kPa& Frese S, HPFrese PVS - LP53-3042Frese PV, 5-30 kPa& Frese S, LPFrese PVS - HP53-3028Frese PV, 20-60 kPa& Frese S ,HPFrese PVSHP53-3023Frese PV,20-80 kPa&Frese S, HPFrese PVSHP53-3024Frese PV,20-80 kPa&Frese S, HPFrese PVSHP53-3025Frese PV,20-80 kPa&Frese S, HPAccessories Frese no. Dim./DNInsulation jacketsPV+SPV+S38-084515/20/2538-085432/40/50Spindle extension 46-107246-107346-107446-1075Example15/202532/4050Please note:As the flow is reduced in the circuit in questionthe pressure increases in reverse ratioto the flow, which is due to the P-band of theadjustment spring. The valve still compensatesfor this.Frese SFrese PVHowever, the pressure will nowhere in thecircuit be as high as the pump pressure thatwould have been available if Frese PV hadnot been installed.In this example the pressure increases to approx.14 kPa as the graph is offset parallelto the course of flow. Furthermore, you canalways read from the graph what the pressurein the circuit will be like at any flow ratebelow the rated 500 l/h.Flowl/s l/h0,167 6000,139 5000,111 4000,083 3005 kPa10 kPaFlow rate graph - Frese PV DN1515 kPaΔPs20 kPa∆Pp = Pump pressure∆Ps = Differential pressure∆Pv = Pressure loss across valve25 kPaΔp across Frese PVkPa30 kPa2,81,91,20,70,0562000,3UK Frese PVS DEC 090,028010000,10,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [ Numbers of turns]www.frese.eu

TechnotePage 5 of 15Frese PVS- dynamic pressure and flow regulation valveExampleFrese PVS DN15 Low PressureDesign differential pressure 12 kPaDesign flow 0,139 l/sDifferential pressure setting Frese PV1. The design flow is used as the point ofreference for the setting. (See the graph)2. In order to make reading easier thegraphs indicating the pressure in the circuitare arranged at intervals of 5 kPa. Still, thegraphs can be offset according to the specifiedpressure of 12 kPa in our circuit.From the intersection of the 12 kPa graphand the horizontal line indicating 0,139 l/sa line perpendicular to the x-axis is made toread the pre-set value.Pre-set app. 7 turns on the scale.3. The minimum pressure drop requiredwill be 1.9 kPa across the valve. (ΔP V2)Flow l/s Flow l/h0,167 6000,1390,1110,0830,0560,028015004003002001005 kPa10 kPaFrese PV DN15 5-30 kPa12 kPa215 kPaΔp acrossPV valveKPa2,800,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]20 kPa25 kPa30 kPa1,91,20,70,30,13Flow setting Frese S1. The design flow is used as the point ofreference for the setting. (See the graph)2. The pre-setting for the valve is found bymeans of the flow rate graph.Setting = 6.73. The minimum pressure drop requiredwill be 11 kPa across the valve. (ΔP V1)Frese S DN15 Low PressureFlow (l/s) Flow (l/h)kV (m 3 /h)min. Δp kPa0,10,222 8000,3 0,6 0,8 1,1 1,3 1,6 1,8 2,1 2,212,80,1940,16770060012,211,60,139500111 30,111 40010,40,083 3009,880,0562009,2Total pump pressureCalculation of the total pump pressure:∆Pp = ∆Ps + (∆P V1+V2)∆Pp = 12 kPa + (11 kPa + 1,9 kPa) = 24,9 kPa0,028010000 1 2 3 4 5 6 7 8 9 10Pre-set28,68UK Frese PVS DEC 09www.frese.eu

TechnotePage 6 of 15Frese PV DN15 5-30 kPaFrese PVS DN15 LP- dynamic pressure and flow regulation valveFlowl/s l/h0,167 600ΔPsΔp acrossPV valveKPa2,80,1395001,90,1114005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa1,20,0833000,70,0562000,30,0281000,1000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]Frese S DN15 Low PressureFlow(l/s) (l/h)0,222 800Kvs (m 3 /h)min. Δp kPa0,1 0,3 0,6 0,8 1,1 1,3 1,6 1,8 2,1 2,212,80,19470012,20,16760011,60,139500110,11140010,40,0833009,80,0562009,20,0281008,6UK Frese PVS DEC 0900 80 1 2 3 4 5 6 7 8 9 10Pre-setwww.frese.eu

TechnotePage 7 of 15Frese PV DN15 20-60 kPaFrese PVS DN15 HP- dynamic pressure and flow regulation valveFlow l/s0,333Flow l/h1200Δp acrossPV valveKPa11,10,27810007,70,22280020 kPa30 kPa40 kPa50 kPa60 kPa4,90,1676002,80,1114001,20,0562000,3000,02 3 4 5 6 7 8 9 10 11 12 13 14 15 16Setting [Number of turns]Frese S DN15 High PressurekV (m 3 /h)0,1 0,3 0,6 0,8 1,1 1,3 1,6 1,9 2,2 2,4Δp kPa8UK Frese PVS DEC 09Pre-setwww.frese.eu

TechnotePage 8 of 15Frese PV DN20 5-30 kPaFrese PVS DN20 LP- dynamic pressure and flow regulation valveFlowl/s l/h0,278 1000ΔPsΔp acrossPV valveKPa6,30,2509005,10,2228004,00,1940,1677006005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa3,12,30,1395001,60,1114001,00,0833000,60,0562000,30,0281000,1002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17Setting [Number of turns]0,018Frese S DN20 Low PressureFlow(l/s) (l/h)0,361 1300Kvs (m 3 /h)min. Δp kPa0,2 0,5 0,9 1,4 1,8 2,2 2,5 2,9 3,2 3,3150,3330,3060,2780,2500,2220,1940,1670,1390,1110,0830,0560,02812001100100090080070060050040030020010014,51413,51312,51211,51110,5109,59UK Frese PVS DEC 09008,50 1 2 3 4 5 6 7 8 9 10Pre-setwww.frese.eu

TechnotePage 9 of 15Frese PV DN20 20-60 kPaFrese PVS DN20 HP- dynamic pressure and flow regulation valveFlow l/s0,556Flow l/h2000Δp acrossPV valveKPa25,00,500180020,30,444160016,00,3890,3331400120020 kPa30 kPa40 kPa50 kPa60 kPa12,39,00,27810006,30,2228004,00,1676002,30,1114001,00,0562000,3002 3 4 5 6 7 8 9 10 11 12 13 14 15 160,017 18Setting [Number of turns]Frese S DN20 High PressurekV (m 3 /h)0,2 0,6 1,0 1,5 1,9 2,3 2,7 3,1 3,5 3,6Δp kPa8UK Frese PVS DEC 09Pre-setwww.frese.eu

TechnotePage 10 of 15Frese PV DN25 5-30 kPaFrese PVS DN25 LP- dynamic pressure and flow regulation valveFlowl/s l/h0,694 2500ΔPsΔp acrossPV valveKPa6,90,55620004,40,41715005 kPa10 kPa15 kPa20 kPa25 kPa30 kPa2,50,27810001,10,1395000,3002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17180,019 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36Setting [Number of turns]Frese S DN25 Low PressureUK Frese PVS DEC 09FlowKvs (m 3 /h)(l/s) (l/h)min. Δp kPa0,2 0,7 1,3 1,9 2,5 3,0 3,4 3,7 4,0 4,10,472 1700170,444 160016,50,417 1500160,389 140015,50,361 1300150,333 120014,50,306 1100140,278 100013,50,250 900130,222 80012,50,194 700120,167 60011,50,139 500110,111 40010,50,083 300100,056 2009,50,028 100900 8,50 1 2 3 4 5 6 7 8 9 10Pre-setwww.frese.eu

TechnotePage 11 of 15Frese PV DN25 20-60 kPaFrese PVS DN25 HP- dynamic pressure and flow regulation valveFlow l/s1,111Flow l/h4000Δp acrossPV valveKPa17,70,972350013,60,833300020 kPa30 kPa40 kPa50 kPa60 kPa10,00,69425006,90,55620004,40,41715002,50,27810001,10,1395000,3002 3 4 5 6 7 8 9 10 11 12 13 14 15 160,017 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33Setting [Number of turns]Frese S DN25 High PressurekV (m 3 /h)Δp kPa0,3 0,8 1,5 2,2 2,8 3,3 3,8 4,1 4,3 4,48UK Frese PVS DEC 09Pre-setwww.frese.eu

TechnotePage 12 of 15Frese PV DN32 20-80 kPaFrese PVS DN32 HP- dynamic pressure and flow regulation valveFlowl/s l/h1,389 5000ΔPsΔp acrossPV valveKPa19,21,250450015,61,111400012,30,9720,8333500300020 kPa30 kPa40 kPa50 kPa60 kPa70 kPa80 kPa9,46,90,69425004,80,55620003,10,41715001,70,27810000,80,1395000,2002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 180,019 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34Setting [Number of turns]Frese S DN32 High Pressure(I/S)Flow(I/H)Kvs (m 3 /h)0,6 1,8 3,0 4,1 5,2 6,3 7,3 8,1 8,7 8,8Δp kPaUK Frese PVS DEC 09Pre-setwww.frese.eu

TechnotePage 13 of 15Frese PV DN40 20-80 kPaFrese PVS DN40 HP- dynamic pressure and flow regulation valveFlowl/s l/h2,222 8000ΔPsΔp acrossPV valveKPa23,81,944700018,21,6671,3896000500020 kPa30 kPa40 kPa50 kPa60 kPa70 kPa80 kPa13,49,31,11140005,90,83330003,30,55620001,50,27810000,4002 3 4 5 6 7 8 9 10 11 12 13 14 15 160,017 18 19 20 21 22 23 24 25 26 27 28 29Setting [Number of turns]Frese S DN40 High PressureFlow(I/S) (I/H)Kvs (m 3 /h)Δp kPa0,5 2,0 4,0 5,9 7,6 9,0 10,5 11,8 12,9 13,28UK Frese PVS DEC 09Pre-setwww.frese.eu

TechnotePage 14 of 15Frese PV DN50 20-80 kPaFrese PVS DN50 HP- dynamic pressure and flow regulation valveFlowl/s l/hΔPsΔp acrossPV valveKPa3,889 1400061,23,333 1200044,92,778 1000020 kPa30 kPa40 kPa50 kPa60 kPa70 kPa80 kPa31,22,222800020,01,667600011,21,11140005,00,55620001,2002 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18Setting [Number of turns]0,019 20 21 22 23 24 25 26 27 28Frese S DN50 High PressureFlow(I/S) (I/H) Kvs (m 3 /h)Δp kPa1,1 3,6 6,2 8,6 10,6 12,4 14,0 15,4 16,2 16,7UK Frese PVS DEC 09Pre-setwww.frese.eu

TechnotePage 15 of 15Frese PVS- dynamic pressure and flow regulation valveText for technical specificationsThe valve should be a dynamic differential pressure and flow control valve with the option of setting the differential pressureand flow on site without suspension of operation.The valve should limit the differential pressure in a circuit.The valve should include optional P/T plugs for the verification of differential pressure in circuit and across the valve.The differential pressure control valve scale should only be adjustable by means of a key.The flow control valve should only be adjustable by means of a lockable handle.The valve should be permanently marked with an indicator for flow direction.Pressure rating PN16.8UK Frese PVS DEC 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 4Frese YDF-2F- differential pressure control valveApplicationFrese YDF-2F is used in central heating-, ventilation-, anddistrict heating systems.This model is a high-performing differential pressure controlvalve installed in the supply or return piping line of loadedequipment and regulates the differential pressure.BenefitsFeaturesDesign• The valve construction integrated with the Equal % Coneprovides additional wide range of control of differentialpressure and flow.• Being diaphragm split-system, there is no influence bytemperature and being perfect balance type, solid setpressure-differential value is ensured.• Strong construction guarantees high durability.• Being diaphragm type, installation in the horizontal andthe vertical position is possible.Operation• High comfort for the end-users due to no noise problemsfrom control valves• Easy adjustment of the pressure by Equal % Cone.• Easy to install and adjust according to selection diagram.• Maintenance time will be referred in acc. with whetherleaking water visually.• Valve lifting can be checked thru the installed indicator.• Sizes from DN25 to DN1508UK Frese YDF-2F MAY 12www.frese.eu

SpecificationsItemsApplicable pressureApplicable fluidFlow temperatureConstructionTechnotePage 2 of 4YDF-2FPN16Hot & cold waterMax 170 0 CDiaphragmDifferential pressure adjustment range (kPa) 50-200End connectionMaterialsValve body pressure testCapillary tubeFrese YDF-2F- differential pressure control valveBodyDiaphramThe valve construction integrated with theprovides additional wide range of contropressure and flow.Being diaphragm split-system, there is ntemperature and being perfect balancepressure-differential value is ensured.Strong construction guarantees high durabilitBeing diaphragm type, installation in the hovertical position is possible.Maintenance time will be referred in acc. withwater visually.Valve lifting can be checked thru the installedSPECIFICATIONSEN 1092-2 PN16Cast IronEPDMWater 24 BarStandard 2mCONSTRUCTIONSTechnical dataFor sizes, larger than 200 are alsModelSize L H1YDF-2FH2 Weight (kg)DN25 (1”) 184 62.5 640 20DN32 (11/4”) 180 70 650 26DN40 (11/2”) 222 80 658 28DN50 (2”) 254 95 670 41DN65 (21/2”) 276 115 720 48DIMENSIONDimensionDN80 (3”) 298 120 720 56DN100 (4”) 352 130 735 72DN125 (5”) 400 150 775 130DN150 (6”) 451 180 800 162UK Frese YDF-2F MAY 12www.frese.eu

TechnotePage 3 of 4CONSTRUCTION DRAWINGFrese YDF-2F- differential pressure control valveCONSTRUCTION DRAWINGCONSTRUCTION DRAWINGConstruction DrawingPinSpringPinPinSpringDiaphragm caseSpringDiaphragm case DiaphragmDiaphragm caseYokeDiaphragmDiaphragmPackingYokeYokeGuidePackingPackingSeatGuideGuideSeatSeatAdjustable screwAdjustable screwActuator spindleAdjustable screwDiaphragm plateActuator spindleActuator spindleDiaphragm IndicatorplateDiaphragm plateIndicatorCone stemIndicatorCone stem Top flangeCone stemConeTop flangeTop flangeConeBodyConeBodyBodySELECTION OF VALVE SIZESELECTION OF VALVE SIZESelection SELECTION of OF valve VALVE size SIZE8G(m3/h)G(m3/h)G(m3/h)Cv: Coeffience of valveQ: Flow (m 3 /h)r: density (water = 1)Δ: differential pressure acrossvalve (kg f/cm 2 )UK Frese YDF-2F MAY 12P(kpa)P(kpa)P(kpa)www.frese.eu

TechnotePage 4 of 4Frese YDF-2F- differential pressure control valveHow to adjust differential pressure2. Loosen the lock nut along the direction of arrow indicated1. Hold it to be fixed until the lock nut is loosenedClockwise:increase of differential pressureCounterclockwise:increase of differential pressureHow to adjust differential pressureMake sure to fully comprehend the following cautions inhandling the products so that the product may display itperformance.1. Do not apply any impact on it2. Avoid any place with dust or humidity when storing it3. A special attention should be paid so that any impuritiesare not inserted into the product4. When attaching it onto a pipe, the location should befree of sand or debris while a point of gasket should bealso cleaned up5. It should be installed on a place easy to access for repair* The structure, dimensions and materials may be changed without anyprior notice for the improvement of performance.Maintenance tipsStuffing nut box packing leaking1. Locking after checking gate valve - Main valve locking2. Pressure pipe valve locking3. Slowly loosening after checking the height of the springspeciefied4. Seperating the pressure pipe5. Loosening after checking the height of indicator 0 Øsstamp thread6. Slowly loosening Stuffing nut box- Stop diassembly if water continuously flows7. Checking and replacing the packing and reverselyassembling itO-ring leakingUK Frese YDF-2F MAY 12Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.eu1. Checking and locking gate valve2. Pressure pipe valve locking3. Checking and slowly loosening the height of spring specified4. Separating the pressure pipe5. Loosening after checking the height of 0 Øs stamp thread6. Disassembling the actuator7. If it’s rusty excessively, it should be ground with soft sandpaper8. Replace O-ring and assembling itFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

TechnotePage 1 of 2Insulation jackets for Frese S and PVApplicationThe insulation jackets have been specifically designed forthe insulation of Frese S, and PV valves.Insulation of valves may reduce the temperature in controlroom, boiler room, and pipe tunnels. Resulting in a moreagreeable working temperature, reduced thermal loss and,consequently, better heat economy year after year.Benefits• Easy installation and removalFeatures• Fire resistant in accordance with the fire rating B2,DIN4102• Resistant to most chemicals. Will not be attacked bydry rot or mold• Does not absorb moisture and, unlike ”wet” mineralwool does not become conductive to heat9UK Frese Insulation jackets NOV 09www.frese.eu

TechnotePage 2 of 2Insulation jackets for Frese S and PVTechnical dataMaterial:Water absorption:Temperature range:Insulating property:EPP (Expanded Polypropylene)< 2,5 vol% at 20 0 Cup to 120 0 CLamda = 0.039 W/mk(20g/l)(must only be used in heating applications)Product programmeFrese no. 38-0845All measurements in mm.For Frese S and PV valveDN15/20/25Frese no. 38-0846For combination ball valve in supplyside of Frese S and PVDN15/20/25Frese no. 38-0854For Frese S and PV valveDN32/40/50Frese no. 38-0848For combination valve in supply side ofFrese S and PVDN32/40/50UK Frese Insulation jackets NOV 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

TechnotePage 1 of 1Frese manometer 2023PApplicationFreses digital manometer for the measurement of differentialpressure in a given installation equipped with Fresevalves.The manometer features are:• On/off• Automatic reset• Illuminated display• ”Out of measuring range”• Hold function• Hose kit incl. needlesThe manometer is easily operated by means of the enclosed,detailed instructions for use.After measuring, the actual value is compared with the min.required differential pressure across the installed flow ratecartridge (see cartridge catalogue or Tech-Note).Freses handy manometer 2023P. Hose kit including needles.The system is easily adjusted as the pump is adjusted in accordancewith the required differential pressure across thecritical valve.Once this differential pressure is available the system willautomatically be balanced.Technical dataOperating temperature:From 10 0 C to 50 0 C(ambient temperature)Please note: The Manometershould be exposed to frost.Min. differential pressure = the lower limit of the operatingrange of the valve/ cartridge. See cartridge catalogue/TechNote.Operating range:Overrange:7 bar10 barBatteries:Two pcs. AAPlease note:Batteries are not enclosed9Environmental specifications: IP67Auto switch-off time:12 minutesUK Frese Manometer APR 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.Dimensions:Weight:www.frese.eu155 x 67 x 40 mm180 gFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 3Frese strainersApplicationFrese strainers are particularly designed and manufacturedin order to provide maximum protection of the pipelineequipment against particles and other impurities. They arenecessary in all fluid, steam and non-flammable gas systemswhere the presence of dirt could result in high operating,maintenance and replacement costs.The fluid enters the Frese strainer and passes into the interiorof a cylindrical screen. While the fluid passes through thescreen, all particles larger than the screen mesh are trappedin the screen. When the filter is removed from the strainer, itacts as a container for the accumulated impurities.The Frese strainers can perform in both horizontal andvertical installations provided that the direction of flow, asmarked on the strainer, is always respected and that thefilter, for vertical pipes, is situated downwards.Benefits• Low installation costs.• Trouble and noise free operation of the other componentsof the system, thus higher performance andlower operation costs.• Longer life cycles thus less time and costs for maintenanceand lower replacement costs over time.• The filter can be easily replaced without removing thebody of the strainer from the pipe.Features• The use of DR brass for the body and stainless steel forthe filter provides excellent corrosion resistance.• The design of the strainer ensures that the filter ispositively sealed to the body ensuring better particleretention.• The choice of the filter mesh (32, hole size 0.5 mm)ensures high filtering performance.• A wide range of dimensions and operating temperaturesgives the flexibility for use in different applications.9UK Frese strainers APR 09A Frese strainer ball valve in the supply line combined with a Frese EVA (two wayautomatic balancing valve) in the return line of a cooling/heating unit.www.frese.eu

TechnotePage 2 of 3Frese strainersFrese Strainer Ball valve (2 in 1)A very compact solution, important in applications where space is restricted and installation time is limited.Technical dataValve Housing:Filter:Gasket:Pressure ratingTemperature:Mesh:Connections:Accessories:DR, Dezincification Resistant BrassStainless steelPTFE(see temperature and pressure diagram)32 (0.5mm)fem/femSpindle extention availableFrese no. Dimensions Kv Weight (kg) L (mm) H (mm)38-5040 DN15 2.7 0.316 77 4038-5041 DN20 5.7 0.448 92 4338-5042 DN25 6.5 0.810 115 49Specification textThe housing of the strainer ball valve should be made of DR brass; the filter should be replaceable and made of stainless steel.The filter mesh should be 32 (0.5mm). The pressure class should be PN20. The strainer should allow operation in temperaturesup to 110 0 C.Frese StrainerA very simple and efficient solution perfectly interacting with the other components of the system.Technical dataValve Housing:Filter:Gasket:Pressure rating:Temperature:Mesh:Connections:DR, Dezincification Resistant BrassStainless steelPTFEPN20-20 0 C to 150 0 C32 (0.5mm)fem/femFrese no. Dimensions Kv Weight (kg) L (mm) H (mm)UK Frese strainers APR 0941-1132 DN15 2.7 0.158 56 4141-1142 DN20 5.7 0.282 69 5041-1152 DN25 6.5 0.440 82 6241-1162 DN32 13.7 0.638 90 7141-1172 DN40 17 0.820 101 7841-1182 DN50 19 1.280 121 96Specification textThe housing of the strainer ball valve should be made of DR brass; the filter should be replaceable and made of stainless steel.The filter mesh should be 32 (0.5mm). The pressure class should be PN20. The strainer should allow operation in temperaturesup to 150 0 C.www.frese.eu

TechnotePage 3 of 3Frese strainersPressure drop graphPressure temperature diagramat each pressure level corresponds a specific admissible temperature level and viceversa1/2”-3/4”1”-1 1/4”1 1/2”-2”9UK Frese strainers APR 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

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TechnotePage 1 of 8CirCon + /TemCon +- thermostatic valves for domestic waterApplicationCirCon + and TemCon + are control valves designed fordomestic hot water installations with circulation.The valves automatically control the temperature of thewater that circulates through the valves. Thus the thermalbalance is ensured throughout the domestic hot watersystem. The valve is adjusted on a scale to a desiredtemperature in the interval between 37°C and 65°C.TemCon + is equipped with a by-pass located outside thethermal part of the valve.So, TemCon + is suited for hot water installations withbacterial problems, e.g. Legionella. Here a procedure ofraising the temperature of the water to between 70°Cand 80°C is carried out at certain intervals.AdvantagesCirCon + and TemCon +• The thermostatic element is located out of contact withthe circulating water, and its dry location prevents scaleproblems.• The setting of the valves is stepless between 37 0 C and65 0 C at an accuracy of +/- 2 0 C.• Each valve is calibrated separately.• The valves are coated with tin/nickel, which is an anticorrosivecoating.UK Frese CirCon + /TemCon + APR 09www.frese.eu• Wide range of couplings.TemCon + :• By-pass for high temperature operation from 70 0 C to80 0 C.• By-pass adjustment occurs by hand or actuator.10

TechnotePage 2 of 8CirCon + /TemCon +- thermostatic valves for domestic waterCirCon + thermal controlCirCon + controls on the basis of thetemperature of the water that circulatesthrough the valve. If the valve is set to atemperature of e.g. 50°C, and the temperatureof the circulating water is under50°C, the valve opens. If the temperatureis over 50°C, the valve closes.CirCon + fem./fem. with scale and built-in isolation ball valve.CirCon +Temperature setting between37 0 C and 65 0 C.Remove the cap, and the temperatureis easily set e.g. by ascrewdriver as shown here.UK Frese CirCon + /TemCon + APR 09Frese CirCon + with press-couplings, and Frese CirCon + with Cu-couplings.Ready for installation!www.frese.eu

TechnotePage 3 of 8- thermostatic valves for domestic waterApplication example - CirCon + CirCon + /TemCon +It is recommendable to install pressure testpoints on both sides of the critical CirCon+valve in the installation for the verificationof differential pressure.UK Frese CirCon + /TemCon + APR 09Dimensioning example - CirCon + (30m x 9w/m) x 0,86CirCon + is dimensioned on the basis ofthe thermal loss in the circuit, in which itis located. An example of dimensioningCirCon + and the overall quantity of waterfor the circulating pump is described inthe following.In an installation with 4 floors and basementa circulation line is dimensioned.The following parameters should beknown for the calculation of the flowrate.Length of pipe: 30 meters. Total length ofpipe controlled by CirCon + .Thermal loss: 9 W/meter pipe. Thermalloss in an external 27 mm pipe with30 mm insulation and a difference of40°C between room temperature andtemperature of the fluid.Δ temperature differential: 5°C.Temperature in hot-water tank 55°C.CirCon+ was set to 50°C on the scale.The flow rate of CirCon+ can be foundfrom the following formula:Q= = 46 l/h5 0 Cwww.frese.euSo, the total quantity of water from 3delivery pipes to the circulating pump isapprox. 138 l/h (3 x 46 l/h).The Kv-value of CirCon + at 46 l/h and adifferential pressure of 10 kPa across thevalve can be found from the followingformula:Q46Kv= = /100 = 0.15√Δp √1010

TechnotePage 4 of 8CirCon + /TemCon +- thermostatic valves for domestic waterTechnical data - CirCon +Materials:Valve body:DZR Brass, CW602NO-rings:EPDMSprings:Stainless steelElement:WaxPlastic parts:POM, ABS, PCSurface coating:Tin/NickelTemperature range: 37 0 C - 65 0 CAccuracy:+/- 2 0 C < 100 kPa DpP-band: 10 0 C (Xp = 10K)Max. Kv-value:1.10 (m 3 /l)Recommended differentialpressure:3 - 10 kPaMax. differential pressure: 100 kPaMax. static pressure: PN10Pressure range:PN16Product programme - CirCon +CirCon + DN20 fem./fem. with ball valveDimension Frese no. Weight [kg] L x B x HDN15 fem./fem. 47-2800 0.5 63/32/96DN20 fem./fem. 47-2801 0.5 63/32/96DN20 fem./fem. with ball valve 47-2802 0.6 79/37/96DN20 male/male with ball valve 47-2803 0.6 79/37/96Ø12 Cu/Pex with ball valve 47-2809 0.8 139/37/96Ø15 Cu/Pex with ball valve 47-2810 0.8 139/37/96Ø18 Cu/Pex with ball valve 47-2811 0.9 155/37/96Ø22 Cu/Pex with ball valve 47-2812 0.9 155/37/96Ø15 Press with ball valve 47-2815 0.7 117/37/96Ø 18 Press with ball valve 47-2816 0.7 117/37/96Ø22 Press with ball valve 47-2817 0.8 120/37/96UK Frese CirCon + /TemCon + APR 09www.frese.euAll CirCon+ valves have theapproval of the Danish VA-Authorities.

TechnotePage 5 of 8CirCon + /TemCon +- thermostatic valves for domestic waterTemCon + - control at two operating temperaturesTemCon + was designed to control at twosets of temperatures, i.e.:Normal operating temperature:Normal operation occurs at temperaturesfrom approx. 50°C to 60°C. That is economicoperation at low precise flow rates, whichensures a high level of comfort at all drawofftaps and exact temperature in all circuits.That is the most frequently appliedoperating range of the valve.High operating temperature:High operating temperature is used atintervals for the pasteurization of domesticwater at 70°C to 80°C.TemCon + fem./fem. valves with scale by-pass and actuator by-passrespectively both of them with built in isolation ball valve.TemCon +The plastic cap is dismantied bymeans of a screwdriver that fitsinto the slot in the cap. Hereinafterthe manually operatedby-pass can be set steplessly to aKv-value between 0.0 and 0.3.UK Frese CirCon + /TemCon + APR 09Frese TemCon + with press-couplings, and Frese TemCon + with Cu-couplings.Ready for installation!www.frese.eu10

TechnotePage 6 of 8CirCon + /TemCon +- thermostatic valves for domestic waterApplication example - TemCon + actuator operated by-passThe control during high temperature operationoccurs as the actuator mounted on theby-pass opens to a fixed Kv-value of 0.3.It is recommendable to install pressuretest points on both sides of the criticalTemCon+ valve in the installation for theverification of differential pressure.Dimensioning example - actuator operated by-passUK Frese CirCon + /TemCon + APR 09During normal operation:During normal operation TemCon + withactuator operated by-pass is dimensionedin the same way as thermal control(CirCon + - see page 3).High temperature operation:The automatic heater or the BMS opensthe by-pass to a fixed Kv-value of 0.3.In this example a sufficient quantity ofwater is ensured to compensate for thethermal loss in the pipe.In an installation with 4 floors and basementa circulation line is dimensioned.Length of pipe: 30 meters.Total length of pipe controlled byTemCon + .Thermal loss (high temperatureoperation):14 W/meter pipe.Thermal loss in an external 27 mm pipewith 30 mm insulation (laminated Rockwool)and a difference of 60 0 C betweenroom temperature and pasteurizationtemperature.Δ temperature differential: 8°C.Between a temperature of 800C in thehot-water tank and a temperature of72 0 C after TemCon + .The flow rate Q of the TemCon + valve canbe found from the following formula:Q=(30m x 14w/m) x 0,86= 45 l/h8 0 Cwww.frese.euThe minimum differential pressureof the TemCon+ valve at a constantKv-value of 0.3 can be found from thefollowing formula:Δp=450.3*1000= 2 kPaHydraulic balanceThe application of a circulating pumpwith proportional control of the pumppressure is recommendable if a fixedKv-value of 0.3 is too much for theinstallation so that the hydraulicbalance is upset.The pump compensates for increasedflow by increasing the differentialpressure.2

TechnotePage 7 of 8CirCon + /TemCon +- thermostatic valves for domestic waterDimensioning example - adjustable by-passWiring diagramHigh temperature operation:On the basis of the dimensioning example for actuatorcontrolled by-pass and high temperature operation the flowrate is found from the formula:Q =30 x 14 x 0,868= 45 l/hThe differential pressure across TemCon + at the givenlocation in the system should be known in order to find thevalue of the adjustable by-pass.Here we use 35 kPa across the valve. The value can be foundfrom the formula:Installation of actuator.The actuator must not be installed upside down!Q 0.045Kv = = = 0.08√Δp √0.35Consequently, the by-pass should be opened to min. 0.08 toensure a temperature of 72°C after the valve.Normal operation:During normal operation it is recommendable to close theadjustable by-pass to gain all the benefits of the thermalcontrol of the TemCon+ valve.Technical data - TemCon +UK Frese CirCon + /TemCon + APR 09Materials:Valve body:DZR Brass, CW602NO-rings:EPDMSprings:Stainless steelElement:WaxPlastic parts:POM, ABS, PCBy-pass:Stainless steelSurface coating:Tin/NickelTemperature rating: 37 0 C - 65 0 CAccuracy:+/- 2 0 C < 100 kPa DpP-band: 10 0 C (Xp = 10K)Max. Kv-value:1.10 (m 3 /l)Recommended differentialpressure:3 - 10 kPaMax. differential pressure: 100 kPaMax. static pressure: PN10Max. temperature:100 0 CPressure rating:PN10Section drawing of TemCon + DN20 fem./fem. with ball valveActuator controlled by-pass:Kv-value, open by pass: 0.3 (m 3 /h)Running time:180 sec. from closed to fully openPower consumption: 1,8WSupply voltage:24V DC/AC or 230 V ACwww.frese.eu10

TechnotePage 8 of 8CirCon + /TemCon +- thermostatic valves for domestic waterProduct programme - TemCon +Dimension Frese no. Weight [kg] L x B x HDN15 fem./fem. 47-2850 0.6 63/58/99DN20 fem./fem. 47-2851 0.5 63/58/99DN20 fem./fem. with ball valve 47-2852 0.6 79/58/99DN20 male/male with ball valve 47-2853 0.6 79/58/99Ø12 Cu/Pex with ball valve 47-2859 0.8 139/58/99Ø15 Cu/Pex with ball valve 47-2860 0.8 139/58/99Ø18 Cu/Pex with ball valve 47-2861 1.0 155/58/99Ø22 Cu/Pex with ball valve 47-2862 0.9 155/58/99Ø15 Press with ball valve 47-2867 0.8 117/58/99Ø 18 Press with ball valve 47-2868 0.8 117/58/99Ø22 Press with ball valve 47-2869 0.8 120/58/99Accessories:Universal insulation 47-9001 0.03 165/73/118Acutatorkit 230V 47-2866 0.15 79/86/120Actuatorkit 24V 47-2865 0.15 79/86/120Insulation for valve with actuator 47-9002 0.01 165/106/125UK Frese CirCon + /TemCon + APR 09Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

TechnotePage 1 of 2Frese MixCon - mixing valveApplicationMixCon is a fail-safe mixing valve for hot and cold water.If the cold water fails the valve shuts off the hot watersupply within 4 seconds.The mixed water temperature is set by turning the plasticcontrol handle towards ”+” to obtain higher temperatures,and towards ”-” to obtain lower temperatures.The temperature setting of the valve is locked by dismantlingthe handle and turning it 180°. Then replace the handle.All MixCon mixing valves are tested separately andproduced in accordance with the ISO 9001 Quality Systemto ensure uniform quality and functionality.Pressure drop graphHot water temperature: 50 0 CCold water temperature: 12 0 CMixed water temperature: 40 0 CUK Frese MixCon FEB 12www.frese.eu11

TechnotePage 2 of 2Frese MixCon - mixing valveTechnical data - MixCon +Valve body:Control handle:Springs:Element:O-rings:Pressure range:Max. pressure:Min. pressure:Max. pressure ratio:Temperature:Mixed water temperature:Hot water temperature:Cold water temperature:DR BrassEPDMStainless steelWaxEPDM10 bar0.2 bar5:1 (hot: cold or cold: hot)30 - 60 0 C50 - 80 0 C5 - 30 0 CThe optimum protection against scalding is achieved if themixed water temperature is at least 10 0 C below the hot watertemperature.Approval:Approved by the DanishVA-AuthoritiesProduct programme/dimensionsDimension Connection Frese no. H1 [mm] H [mm] L [mm] Weight [g]DN20 DN20/fem/fem/fem* 47-2643 54 132 70 520DN20 Ø15/Cu-tube 47-2677 61 139 88 690DN20 Ø22/ Cu-tube 47-2688 62 140 90 645* 3/4” galvanized pipeUK Frese MixCon FEB 12Frese A/S assumes no responsibility for errors, if any, incatalogues, brochures, and other printed matter. Frese A/Sreserves the right to modify its products without prior notice,including already ordered products, if this does not alterexisting specifications. All registered trademarks in this materialare the property of Frese A/S. All rights reserved.www.frese.euFrese A/SSorøvej 8DK- 4200 SlagelseTel: +45 58 56 00 00Fax: +45 58 56 00 91info@frese.dk

YEAR AREA TYPE PROJECT CONSULTANT2007 Bahrain Residential Building Amwaj Residential Islands GEMACUK Project references JUN 11Project references Middle Eastwww.frese.eu2007 Bahrain Residential Building Pearl Tower GEMAC/Al Hamad2006 Bahrain Hotel KK3 Hotel Habib Mudara2005 Bahrain Commercial Building Y.K. Tower (50 Storey) Shadeed Engineering2008 Egypt Hypermarket Carrefour MED (Abd El-hamid Bakry)2008 Egypt Office Building Fifth District Building BAKRY Consultant Engineering2008 Egypt Office Building Vodafon Building - C3 SHAKER Consultancy Group.2008 Egypt Private Villa Nagi Wali Villa Eng. Khaled Fateen2008 Egypt Residence Building El Fath Building MED (Abd El-hamid Bakry)2008 Egypt Residence Buildings Porto Marina MED (Abd El-hamid Bakry)2008 Egypt Shopping Mall El Obour Mall MED (Abd El-hamid Bakry)2007 Egypt Hotel Scandik Crown Home2007 Egypt Office Building Maradive MAK (Marwan Karawya)2006 Egypt Factory Bio Farm C Group. Eng. Khalid El Rai2006 Egypt Factory Pakin Owner2006 Egypt Hospital 60 Bed Hospital Eng. Abdelsalam Mahroos2006 Egypt Social Club Shooting Club Dr. Maged Nagm2006 Egypt Social Club Smash Club (Smart Village) Dr. Mohamed Mahmoud (Saboure)2005 Egypt Airport Sharm El-Sheikh Airport - New Terminal. Dar Al Handasah2005 Egypt Hospital National Bank Hospital. Khalid El Rai2005 Egypt Hotel Aswan Club Hotel - Aswan. Dr. Hakim El Afifi Office2005 Egypt Hotel Club of Aswan - Aswan. Afifi Consultancy2005 Egypt Hotel San Stefano Complex - Alexandria. Dar Al Handasah2005 Egypt Hotel Complex San Stefano Complex. Dar El Handasah.2005 Egypt Mosque Mosque. Afifi Consultancy2004 Egypt Head Quarters Arab Organization for Development - Phase 1&2. R & A Consultants2002 Egypt Conference Hall Alexandria Library Conference Hall Hamza Consultants2002 Egypt Factory Nile Pharma Saboure Consulting Office2002 Egypt Social Club El Rabwa Social Club Alexandria Real Estate Co.2002 Egypt Workshop F16 Workshop Facility US Corps Of Engineers12

YEAR AREA TYPE PROJECT CONSULTANT2001 Egypt Auditoriums Tanta University (Faculty of Pharmacy) University Consultation OfficeUK Project references JAN 12Project references Middle Eastwww.frese.eu2000 Egypt Private Villa Manial Sheha Private Villa Egypt National Co.2007 Jordan Hotel Holiday Inn2000 Kuwait CRC Building1998 Kuwait Commercial Building Gulf Investment Co.1998 Kuwait Hospital Maternity Hospital1997 Kuwait Commercial Building Public Authority for Civil Identity1996 Kuwait Commercial Building Chamber of Commerce1996 Kuwait Commercial Building Sharq Waterfront1994 Kuwait Hotel Sheraton Hotel KEO International Consultants1986 Kuwait Eighteen Palaces Bayan Palaces Complex KEO International ConsultantsKuwait School Kuwait University KEO International Consultants2000 Oman Hotel SAS Radisons Hotel TSI2000 Oman Mosque Bala Mosque TSI2007 Qatar Residential Building Lagoon Plaza M&Z Partners2007 Qatar Shopping Mall City Center Phase 22002 Qatar Hospital Al-Ahli Hospital Dar Al Handasah2001 Qatar Airport Airport expn., Qatar Meinhardt2000 Qatar Hotel Hotel Intercontinental, Qatar Dar Al HandasahQatar School Well Cornell Medical College KEOQatar Qatar Dist. Co. Meinhardt2011 Saudi Arabia Commercial and residential Gharnata Offices Towers Rezayat Trading Company Limited2011 Saudi Arabia Education Girls College Exit 9 Rezayat Trading Company Limited2011 Saudi Arabia Education Al Kharj University Rezayat Trading Company Limited2011 Saudi Arabia Education Prinsses Noura University (PNUFW) Rezayat Trading Company Limited2011 Saudi Arabia Hospital Al Rashid Hospital Rezayat Trading Company Limited2011 Saudi Arabia Hospital Medical Specialist Center Smc Rezayat Trading Company Limited2011 Saudi Arabia Hospital Al Batha Hospital Rezayat Trading Company Limited2011 Saudi Arabia Shopping mall Al Othim Mall Exit 14 Rezayat Trading Company Limited2011 Saudi Arabia Shopping mall Carrefour Mall Burada Rezayat Trading Company Limited

YEAR AREA TYPE PROJECT CONSULTANT2011 Saudi Arabia Shopping mall Carrefour Mall Al Bustan Rezayat Trading Company LimitedUK Project references JUN 11Project references Middle Eastwww.frese.eu2011 Saudi Arabia Shopping mall Carrefour Mall Al Shatia Rezayat Trading Company Limited2011 Saudi Arabia Shopping mall Al Rashid Mall Rezayat Trading Company Limited2008 Saudi Arabia Airport Hajj Terminal, Jeddah Dar Al Handasah/Bin Laden2007 Saudi Arabia Commercial Building Carrefour Hypermarket Techno2000 Saudi Arabia Burj Al-Mohammadiyah Project, Madinah Juffali Brothers2008 UAE Hotel Emirates Park Hotel2008 UAE Mixed Use Complex Business Park2008 UAE Mixed Use Complex Dammam Towers Buro Happold2008 UAE Mixed Use Complex Horizon Towers2007 UAE Commercial, Residential & Hotels Motor City WSP/Khatib & Alami/Edara2007 UAE Hotel Millenium Hotel Extension2007 UAE Mixed Use Complex Julfar Tower2007 UAE Office Complex Dubai Health Care City2007 UAE Residential & Commercial Dubai Marina Quays Arif & Bintoak/Al Hamad2007 UAE Residential & Commercial Green Community Phase 2 Khatib & Alami2007 UAE Residential Tower Marina Quays Emaar2007 UAE Julfar Tower2007 UAE Millenium Hotel2004 UAE Commercial Building Garden´s Shopping Mall Gemac2004 UAE Green Community (Hotel and Terraced Apartments) S & D / Gemac2004 UAE Green Community Phase 1 Khatib & Alami2004 UAE Green Community Phase 1B (Villas) Khatib & Alami2004 UAE Palm Jumeirah Crescent Palm District Cooling2003 UAE Hotel Conference Palace Hotel PKG. 10A Hotels Keo international consultants2003 UAE Conference Palace PKG. 9 (Main Palace) Keo international consultants2002 UAE Commercial Building World Trade Centre Hall 8 RMJM2002 UAE Commercial Building World Trade Centre Halls 1 & 2 RMJM2002 UAE Residential Building The Tower (50 Storey) Khatib & Alami2002 UAE School Womens College Dar Al Handasah12

YEAR AREA TYPE PROJECT CONSULTANT2002 UAE Dubai Marina Mott MacdonaldUK Project references JAN 12Project references Middle Eastwww.frese.eu2002 UAE The Tower (50 Storey) Khatib & Alami2001 UAE Airport Planet Optical Disc, Dubai Airport Planet Optical (client)2001 UAE Commercial Building Abu Dhabi Trade Center Cansult2001 UAE Commercial Building G+M+12, Sharjah Newform2001 UAE Commercial Building G+M+2, Sharjah Newform2001 UAE Commercial Building Sahara Centre, Sharjah Kennedy & Donkins2001 UAE District Cooling The Gardens, Jebel Ali ETA - Khatib & Alami2001 UAE Private Villa Zabeel Palace Kitchen Peter Huoson Buckle & Partners2001 UAE School Al Ain Teaching Facility Keo international consultants2000 UAE Airport Dubai Airport (Plant room for Concourse) Int´l Bectel2000 UAE Commercial Building Al Musalla Tower W.S.Atkins2000 UAE Commercial Building Marina Mall, Abu Dhabi Gibbs Int´l2000 UAE Hotel Marriot Hotel Syna Dev.UAE Bank Emmar Bank RMJMUAE Commercial Building Childrens City, Dubai SPP/Dubai MunicipalityUAE Commercial Building Cultural Centre Al - HashmiUAE Commercial Building Falcon Centre GemacUAE Commercial Building Reef Mall RMJMUAE Commercial Building Wafi Mall Extn., Dubai WSPUAE Hotel 45 Storey Hotel ArchonUAE Hotel Abu Dhabi Grand Hotel Keo international consultantsUAE Hotel Madinet Jumeirah RPWUAE Hotel Mirage Hotel RPWUAE Office Building Al Quez Office Block Engineer´s officeUAE Office Building Office Building Al HamadUAE Private Villa 2 Villas at Safa GemacUAE Private Villa Hill Side Villas ETAUAE Private Villa Jumeirah Villa-2 Engineer´s officeUAE Private Villa Villa for H H Sheikh Mohammed Bin Rashid Engineer´s office

YEAR AREA TYPE PROJECT CONSULTANTUAE Private Villa Villa for H H Sheikh Mohammed Bin Rashid Engineer´s officeUAE School Al Ain University Keo international consultantsUAE School Dubai Mens College Dar Al HandasahUK Project references JUN 11Project references Middle Eastwww.frese.euUAE 4 Bldgs. At Emarat Hills Ian BenhamUAE 44 Storey Building ArencoUAE Al Grome Plaza Al HamadUAE Al Meraikhi Bldg. Abu Dhabi GemacUAE Al Raha Hotel Bldg. & Shopping Complex TESTUAE Arabian Ranches Norr, GroupUAE B+G+M+23 Building for Al-Abbar Gulf InternationalUAE B+G+M+26 Building for Al Sayegh Gulf InternationalUAE B+G+M+4 for Dubai Real Estate Consultants Al-TurathUAE Bakhita Building Jain & PartnersUAE Dubai Free Zone Real Estate RMJMUAE Dubai Municipality Stores Dubai Municipality project sectionUAE DWTC Hall 1 & 2 RMJMUAE G+M+7 Storey Building for Al-Attar Consultants Al-TurathUAE Maqam Lab Keo international consultantsUAE Mirdiff Uptown House Khatib & AlamiUAE Nashad Building Al HamadUAE Villas at Emirates Hills FraylandUAE Womens Association Shadeed EngineeringProject references Far EastYEAR AREA TYPE PROJECT CONSULTANT2008 Australia Commercial building Northbank Towers, Melbourne Crane Distribution2005 Malaysia Plant Sudan Water Treatment Plant2005 Malaysia School Kuittho, Dewan Kuliah - Phase 2Hong Kong Commercial building Shek Wu Hui Municipal Services building12

UK Project references JAN 12Project references Europewww.frese.euYEAR AREA TYPE PROJECT CONSULTANT CONTRACTORDenmark Airport Terminal 3, Kastrup Steensen & VarmingDenmark Bank Landesbank Kiel Jørgen WessbergDenmark Bank Sparekassen Kronjylland RambøllDenmark Bank Sydbank Esbensen A/SDenmark Commercial Building 4YOU Hovedlager BrøndumDenmark Commercial Building A.P. Møller (Esplanaden) Carl BroDenmark Commercial Building Blücher RambøllDenmark Commercial Building CCI Europe Carl BroDenmark Commercial Building Cowi Domicil Lyngby SkanskaDenmark Commercial Building Maersk Data Hes Klima KBDenmark Commercial Building Mercedes Danmark Carl BroDenmark Commercial Building Netto Centrallager Birch & KrogboeDenmark Commercial Building Nokia Steensen & VarmingDenmark Commercial Building Rema 1000 Hovedlager SkanskaDenmark Commercial Building Skanska Domicil CowiDenmark Commercial Building Statoil Domicil Birch & KrogboeDenmark Commercial Building Tiscali/SAP Midtconsult A/SDenmark Hospital Odense Universitets Hospital CowiDenmark Hotel Hotel Hilton NirasDenmark Hotel Hotel Marriott Birch & KrogboeDenmark Industry Arla Ostemejeri RambøllDenmark Industry Gram Fabrikkerne RambøllDenmark Residential area Baldersbo Henrik LarsenDenmark Residential area Glostrup Boligselskab DanaconDenmark Residential area Glumsøparken KABDenmark Residential area Vesterbro BoligforeningDenmark School/University Copenhagen University CowiDenmark School/University Ingeniør skolen CowiDenmark Shopping Mall Bilka HorsensDenmark Shopping Mall Fisketorvet Skanska

UK Project references JUN 11Project references Europe12www.frese.euYEAR AREA TYPE PROJECT CONSULTANT CONTRACTORDenmark Shopping Mall Ro's Torv Henrik LarsenDenmark Society H & S Domicil Steensen & VarmingDenmark Society Kommunernes Landsforening Ha Ca FrøDenmark TV-station Danmarks Radio RambøllDenmark TV-station TV2 NCCFrance Commercial Building Atlantic building, ParisFrance Commercial Building BNP Paribas Headquarter, Paris2007 Germany Airport Hangar Fraport Frankfurt AGOGermany Cruise ship Jewel of the sea2001 Greece Hotel Portohelli Hotel Envirotech2000 Greece Hotel Hinitsa Hotel Envirotech2007 Ireland Shopping Centre Athlone Town Centr R. N. Murphy Mercury EngineeringIreland Commercial Building Allied Irish Bank headquarter, Dublin2010 Poland Office Complex Malta Office Park Danpo2009 Poland Office Complex Malta Office Park Danpo2010 Poland Office Building Awatar Danpo2010 Poland Office Building Katowice Business Point Danpo2010 Poland Office Building Oxygen Danpo2009 Poland Office Complex Park Postępu Danpo2008 Poland Commercial Building Marynarska Business Park Danpo2007 Poland Commercial Building Office Park Danpo2007 Poland Commercial Building Trinity Park Phase II Danpo2007 Poland Shopping centre Pasaz Grunwaldzki (the Grunwaldzki passage) Danpo2006 Poland University Akademia ŚwietokrzyskaDanpo(Swietokrzyska Academy)2006 Poland Warehouse hall CER Poczta Polska (Polish Postal Services) DanpoPortugal Commercial Building Portugal Telecom headquarterPortugal Shopping Mall Centro Colombo, Lissabon2008 Spain Bank SEDE BBVA SEVILLA FRINORTE2008 Spain Commercial Building C.C. ARANJUEZ PLAZA ANCIN CLIMA2008 Spain Commercial Building CC PALMERAS FUERTEVENTURA HUMICLIMA

UK Project references JAN 12Project references Europewww.frese.euYEAR AREA TYPE PROJECT CONSULTANT CONTRACTOR2008 Spain Flats 238 VIVI TORREJON INSSERCO2008 Spain Health center/ Hospital CENTRO ENFERMEDADES RARAS COFRICO2008 Spain Hotel HOTEL BITACORA S. ARENCIBIA2008 Spain Hotel HOTEL EN LEON COFRICO2008 Spain Hotel Obra HOTEL FLAMENCO CUNIL - CADIZ ARBONA PIZA - HUMICLIMA2008 Spain Hotel Obra HOTEL PRESTIGE LUCENA ARBONA PIZA - ICLIMA2008 PIZASpain Hotel Obra HOTEL SUNWING INTERCLIMA DIEZ, S.L., ARBONA2008 Spain Library BIBLIOTECA CIUDAD REAL ENERMES CLM2008 Spain Public building REHABILITACIÓN PALACIO DE COMUNICACIONES INTERNACIONAL TECAIR2008 Spain Residence RESIDENCIA SAN CLEMENTE 2C2E2008 Spain Residence VITONIA BEACH CLUB VECLIMA2008 Spain School/University COLEGIO ARANJUEZ BENITO HERRERA2008 Spain School/University COLEGIO PARACUELLOS BENITO HERRERA2008 Spain School/University UPM-EDIFICIO AT MAINSA2008 Spain School/University UPM-EDIFICIO BT MAINSA2008 Spain School/University UPM-EDIFICIO FGP MAINSA2008 Spain School/University UPM-EDIFICIO LEF MAINSA2008 Spain School/University UPM-EDIFICIO LMA MAINSA2008 Spain School/University UPM-EDIFICIO LOM MAINSA2008 Spain School/University UPM-EDIFICIO SC MAINSA2008 Spain Solar instalation PLANTA PANELES FOTOVOLTAICOS-ORENSE KLIMACAL2008 Spain Wine cellar BODEGA MONTE LA REINA ENSITEC2008 Spain Wine cellar BODEGA MUDARA ENSITEC2005 Spain Hotel Hotel Ribera de duero2005 Spain Hotel Land Hotel2004 Spain Civic Center Centro civico Capiscol2004 Spain Hotel Aparthotel2004 Spain Hotel Hotel don teodoro en la alberca2004 Spain Hotel Hotel Elba en Almeria2004 Spain Residence for old people Geriatrico en vigo

UK Project references JUN 11Project references Europewww.frese.euYEAR AREA TYPE PROJECT CONSULTANT CONTRACTOR2004 Spain Residence of students Residencia de estudiantes2004 Spain Residential area 53 Viendas2004 Spain Residential area Sistemec/Residencia2004 Spain Restaurant Mc Donalds Baricentro2004 Spain Restaurant Mc Donalds zubiarte2004 Spain Shopping Mall Tienda2004 Spain Gonvarri2004 Spain Inclima2004 Spain Obra2004 Spain Sabeco2004 Sweden Commercial Building Kv. Gulsparven Bengt Dahlgren AB2004 Sweden Industry Sannegårdshamnen 2 EPG Konsult Samordnad VVS Teknik2004 Sweden Residential area Bergshamra YIT Sverige AB2004 Sweden Residential area Kv. Anna GE VVS-Projektering AB2004 Sweden Residential area Kv. Nunnan GE VVS-Projektering AB2004 Sweden Residential area Kv. Osthyveln NVS Installation AB2004 Sweden Residential area Kv. Samson Råå VVS-Byrå AB2004 Sweden Shopping Mall Kv. Klostret NCC Construction2004 Sweden Sports facility Cloetta Center NVS Installation AB2003 Sweden Industry Polykemi AB Anderssons Rörinstallationer AB2003 Sweden Industry Saab YIT Sverige AB2003 Sweden Residential area Kv. Hälleberget JF Jansson Rör AB2003 Sweden Science Park Kv. Idémannen Sweco TheorellsSweden Commercial Building Mjärdevi center, LinköpingTurkey Hotel The Marmara Hotel2008 UK Office Building Watermark Place, London Waterman Building Services NG Bailey2008 UK Residential Tower 22 Marsh Wall, London Hoare Lea Haydon Mechanical Electrical2007 UK Leisure Centre Banside Leisure Centre, Yorkshire Yorkshire Building Services2007 UK Office Building 160 Tooley Street, London ARUP Crown House Technologies2007 UK Office Building 22-26 Cursitor Street, London Chapman Bathurst MJ Lonsdale12

UK Project references JAN 12Project references Europewww.frese.euYEAR AREA TYPE PROJECT CONSULTANT CONTRACTOR2007 UK Office Building Warwick Court, London Sinclair Knight Mertz WESTCO2007 UK Residential Tower 1 Millharbour, London Hoare Lea Haydon Mechanical ElectricalUK Commercial Building Aldgate Union WSP MJN ColstonUK Commercial Building Blenheim Business Park Pricewise David Ford Mech & ElecUK Commercial Building Farnborough Business Park Foreman Roberts Pipe Center-SloughUK Commercial Building Hardman Street Waterman Gore NG BaileyUK Commercial Building New England Sea Food Yorkshire BuildingUK Commercial Building Northumberland House Elementa Meica ServicesUK Health center Alfreton Primary Care EP consulting/Hulley & Kirkwood J TomlinsonUK Health center Humberstone Health centre EP consulting/Hulley & Kirkwood J TomlinsonUK Health center Leicester LIFT EP consulting/Hulley & Kirkwood J TomlinsonUK Health center Long Eaton Health Centre EP consulting/Hulley & Kirkwood J TomlinsonUK Health center Swadlincote Primary Care EP consulting/Hulley & Kirkwood J TomlinsonUK Health center Westcotes Primary Care EP consulting/Hulley & Kirkwood J TomlinsonUK Hospital St James Oncology Hoare Lea Rotary ServicesUK Hotel Copthorne Hotel Applied Energy All GroupUK Hotel Gretna Green Hotel Pricewise D&B PricewiseUK Hotel Heron House IEI Building Services TroxUK Hotel Hilton Hotel Applied Energy All GroupUK Hotel Hilton Hotel Applied Energy All GroupUK Hotel Hilton Metropole Applied Energy All GroupUK Hotel Jarvis Ramada Applied Energy All GroupUK Hotel Marble Arch Marriot Hotel Applied Energy All GroupUK Hotel Marriot Hotel Applied Energy All GroupUK Hotel Vencourt Hotel Applied Energy All GroupUK Industry ExxonMobil Foreman Roberts Michael J LonsdaleUK Industry Unilever Grenco RefrigerationUK Industry Worcester BOSCH ESDPUK Residential area Bristol Harbourside Hoare Lea Crown House Tech.UK School/University Kirklees Schools PFI Airedale Mechanical

UK Project references JUN 11Project references Europewww.frese.euYEAR AREA TYPE PROJECT CONSULTANT CONTRACTORUK School/University Merrill College Pick Everard Rosser & RusselUK School/University Merryfield Pre-School Merryfield Pre-SchoolUK School/University Navigation Primary School SI Sealy A. Longworth & Sons LtdUK School/University Orchard School Silverback Bldg Serv LtdUK School/University St Peters LIFT EP consulting/Hulley & Kirkwood J TomlinsonUK School/University Willowgarth High School EP consulting/Hulley & Kirkwood J TomlinsonUK 3 Olaf Street ARUP Borahurst LtdUK Austin Estates Primary EP consulting/Hulley & Kirkwood J TomlinsonUK Beaconsview EPH SI Sealy Cross ServicesUK Bernard Matthews Grenco RefrigerationUK Castleford EPH SI Sealy Cross ServicesUK Claredon Road WatsonsUK Coleman Street EP consulting/Hulley & Kirkwood J TomlinsonUK Comben House Haden YoungUK D.V.L.A. Swansea Hoare Lea Lorne StewartUK Dartford Innov Center Marflow Engineering Ltd.UK EDS Hook WestcoUK Geest Foods Grenco RefrigerationUK Homeserve Phase 4 Marflow Engineering LtdUK IDCC LIFT EP consulting/Hulley & Kirkwood J TomlinsonUK Lily II Marflow Engineering Ltd.UK Mecca Bingo Warrens-LeedsUK Millbank EPH SI Sealy Cross ServicesUK Moy Park Ltd Grenco RefrigerationUK Oakington Reception GSL UK LtdUK Pomona Street Hoare Lea Mitie EngineeringUK Shell centre Hurley palmer Flatt Shepherd EngineeringUK St. Pauls Square Buro Happold Marflow Engineering Ltd.UK Vincent Square Meica Services12

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TechnoteFrese PVDifferential Pressure Control ValveHeating and cooling systems are often noisy with thermostatic valves not beingable to close completely.Despite the fact that almost all modern systems use variable speed pumps, thereis still a tendency in larger systems for differential pressure to increase when thesystem is partially loaded, giving rise to noise and to valves that struggle toregulate effectively.• Max. diff. pressure: 400 kPa• Temperature range:-10 to 120°C• Dimensions: DN15-DN50• Flow range up to 15 m 3 /h• Material: DZR Brass• Static Pressure: PN 25• For heating and cooling systemsFrese PV maintains a constant differentialpressure in the system and is unaffected byfluctuations in pressure and flow. To allowprecise adjustment of differential pressure,all standard valves are equipped with P/Tplugs, which means differential pressure canbe measured across the system and acrossevery valve.Frese PV can be combined with FreseS, dynamic balancing valve and thecombination of these valves means perfectcontrol of differential pressure withinthe system and complete control of flow.Regardless of any other changes in thesystem, differential pressure and maximumflow will not change.Frese balances efficiently HVAC systems allaround the world. From cooling systemsin the Middle East to heating systems inScandinavia, Frese’s products transformstate of the art technology into every daysolutions.UK Inner back JAN 2012Built in P/T plugsand isolationOptional positionEasily settingwww.frese.eu

Reference ProjectForum Marmara Shopping Mall& Office Project in IstanbulThe Forum Marmara is one of the biggest shopping centers in Turkey and Europe. The projectis located on a 106.000 sqm. plot area and has 85.000 sqm. of foundation area. Besides theshopping centre with stores, cinemas, food courts, bowling centers and children’s playing areathere are six office floors.Frese Eurasia has many big shopping malls on the reference list - Forum Marmara now being thelatest one. The entrance part of the commercial areas (shopping mall & offices) was completedin March 2011.Frese Automatic Balancing Valves were used to ensure hydraulic balance in the complex and sothe delivery consisted of Frese Alpha Valves for every shell & core part, every AHU heating andcooling lines, chillers, cooling towers, heat-exchangers - 1300 pcs in total.You will find more information at: www.frese.euDenmark - Main Office United Kingdom United Arab Emirates Australia & New Zealand ChinaFrese A/S Frese Ltd Frese Middle East Frese Australasia & New Zealand Frese Valves (Ningbo) Co., Ltd.Tel: +45 58 56 00 00 Tel: +44 (0) 1704 896 012 Tel: +97 143 417696 Tel: +61431 794 414 Tel: +86 (21) 5110 3212Germany Turkey Saudi Arabia South AfricaFrese Armaturen GmbH Frese Eurasia DIS TIC. LTD. STI. Frese Middle East Frese South AfricaTel: +49 (0) 40 611 653-0 Tel: +90 216 580 93 60 Tel: +966 2 6608230 Tel: +61431 794 414