Permutit™ Nuclear Industry Products - Siemens

DESIGN FEATURES Cavitating venturis offered in sizes 2”through 6” for weld-in or flange mounting Cavitating venturis are available withthroat tap sets Recovery cones designed for individualpressure recovery conditions Accuracy of +/- 5 % to pressure or Flowconditions Multi-orifice designs are available as weldin or flanged Flanged removable orifice, included in themulti-orifice designConstructionThe venturis and the orifices are generally provided invarious grades of stainless steel, but other materials canbe provided as required. These can be welded in line orprovided with flanged connections. The removableorifice is provided with flanged ends.Quality ControlWe have been the trusted source for all grades ofnuclear and commercial demineralizers for many years.Our capabilities include dissimilar metal welding andfabrication to ANSI and RDT specifications. We meet therequirements of the ASME Codes and 10CFR50,Appendix B through our stringent quality assuranceprogram.The AdvantageAs the leader in the water treatment industry, SiemensWater Technologies has the greatest depth of personneland technological resources to overcome any challenge.We offer the widest variety of specialty products for thepower generating industry, including many customcomponents. Please contact us for additionalinformation about your specific requirements.AdvantagesCavitating design venturis: Uncalibrated accuracy up to +/- 5% of pressure orflow rate Actual characteristics can be determined by fullpressure test in lab Less susceptible to wear and erosion Erosion does not affect design or performance No moving parts to wear or breakdown such as inpressure reducing valves etc Shorter lengths, can be fit into existing pipelines Meets wide variety of flow and applicationrequirements due to custom designMultiorifice designs: Low cost Removable orifice available to fine tune design Highest quality design and manufacturing availablefor both designs to meet requirements of ASME,10CFR50, Appendix B, ANSI B31.1, seismic andnatural frequency requirements3

Permutit Flow Nozzles for AccurateMeasurement of Fluid FlowPermutit flow nozzles offer accurate measurementand flow control through the use of differentialpressure. While we offer all three of the differentialpressure-producing devices used within the powerindustry (flow nozzles, venturis and orifice plates),Permutit flow nozzles are the most versatile devices.They measure the rate that fluids flow under pressurein closed piping systems. Their accuracy and pressuredrop/recovery characteristics are far superior to orificeplates. While their characteristics do not equal that ofventuri tubes, their excellent performance inmaintaining stable/accurate flow rates, overall systemperformance and affordable cost make them aneffective alternative for many system control points.ApplicationsPermutit flow nozzles accurately measure liquid, gasor steam flows in all types of boiler piping systems.They are used in a wide range of boilers, from lowpressure to supercritical, and in both fossil and nuclearfueledpower plants.ConstructionDepending upon size, Permutit flow nozzles aremachined from either forgings or centrifugal castingsand surfaces are available to 4 RMS. Materials ofconstruction include: Carbon steel Series 300 stainless steel Monel Copper-Nickel TitaniumQuality ControlWe have been the trusted source for all grades ofnuclear and commercial flow nozzles and othercomponents for many years. Our capabilities includedissimilar metal welding and fabrication to ANSI andRDT specifications. We meet the requirements of theASME Codes and 10CFR50, Appendix B, through ourstringent quality assurance program.4

Permutit Flow Straighteners To Correct FlowProfile for Accurate Flow MeasurementThe Permutit flow straightener has a unique andexclusive design to provide flow profile correctionwithin minimal straight pipe lengths. Thiscombination offers the most flexible installation at afraction of the cost of ordinary flow straighteners.When installed in existing pipelines, flowstraighteners can actually improve flow meterperformance.UsesFlow straighteners are used to correct the flowdistortions that cause inaccurate flow meterreadings. The accuracy of the flow meter isdependent upon the flow profile of the fluid as itpasses into and through the measuring device. Thepipe layout, pipe fittings, expanders and strainerscause distortions in the flow profile. Such distortionscan be eliminated by providing an adequate length ofstraight pipe before the meter or by the use of flowstraighteners.ApplicationsPermutit flow straighteners are used in liquid, gasor steam applications in virtually all types of closedpressure piping where flow profile correction isrequired. They can be installed in new or existingsystems to ensure accurate flow metering.Appropriate for a wide range of boilers, from lowpressure to supercritical, they are utilized in bothfossil fueled and nuclear power plants.Quality ControlWe have been the trusted source for all grades ofnuclear components for many years. Our capabilitiesinclude dissimilar metal welding and fabrication toANSI and RDT specifications. We meet therequirements of the ASME Codes and 10CFR50,Appendix B through our stringent quality assuranceprogram.6

The AdvantageAs the leader in the water treatment industry, SiemensWater Technologies has the greatest depth of personneland technological resources to overcome anychallenge. We offer the widest variety of specialtyproducts for the power generating industry, includingmany custom components. Please contact us foradditional information about your specificrequirements.Design featuresPermutit PFP flow straighteners feature a perforatedplate design with a symmetrical layout of holes clusteredmore densely at the center than at the perimeter. Thisunique design pattern re-establishes the normalturbulent flow velocity profile for a fluid passing throughit. Offered in weld in or flange mounted design, they areavailable in a range of standard sizes from 6” to 24”diameter with larger units on request. All variations suchas length, pressure ratings and materials are available.Advantages Highly Effective – corrects rapidly for bothunsymmetrical and spiral flow distortions Low Cost – compact design with simple, ruggedconstruction and ease of installation Less Piping – uses significantly shorter straightpipe runs than conventional types (requires only11 pipe diameters upstream and 4 diametersdownstream) Low Pressure Loss – 75% lower pressure dropthan conventional perforated plate flowstraighteners and 41% lower pressure drop thanASME tube types Versatile – developed for use with venturi meters,flow nozzles and orifice plates and may also beused with vortex, turbine and pitot type meters7

Feedwater Flow Meter InspectionsOver time and with continual usage, your feedwaterFlow meters may not be operating at the accuracylevel as originally calibrated when first installed.Various causes such as erosion, physical damage,corrosion fouling etc may have altered the flowcharacteristics of the meter.Adjustments for the measured flows may have beendone by utilizing various instrument loop correctionfactors, and or comparing it to other devices and usingthe adjusted flow coefficients based on suchmeasurements, it is extremely important to inspect theflow meter tubes and its components for anydeterioration of surfaces tap sets and or physicaldamage. As you probably are well aware the correctionfactors s you maybe using may cause both either anincreased or decreased flow, from that being recordedby utilizing such correction factors.Siemens Water Technologies offers their services forthe feedwater meter Inspection during your scheduledoutage, when access to the flow meter is available.This will enable you to pinpoint any deficiencies and orcorrective action that may be possible.The staff available for the inspection is highly qualified,with extensive experience in the manufacture anddesign of the meters. Records, drawings, data for themeters as provided is available in most cases whichmakes each inspection highly specific.Review of Flow Measurement Data:At the convenience of the plant, this would be doneprior to inspection, at site and or bycorrespondence. History and trends of flow measurement, andperceived errors Comparison of trend between multiple metersinstalled in line Review installation differences betweenmultiple meters Use of tap sets, whether all the tap sets are,connected, averaged or not in use Correction factors in use, and source where theyare derived from Develop a decision tree, for planned activities Provide recommended cleaning procedure8

Physical Inspection: Upstream, downstream pipe inspection Flow straightener – view and inspect welds,obstructions etc. View signs of erosion, and or deposits, and anydistinct patterns of corrosion / erosion Check for leaks in venturi section to tap connections. Check for damage to inlet profile of venturi Critical view of tap holes, signs of edge deterioration,depressions or protrusion of taps into pipe wall etc. Presence of burrs, foreign objects etc, in and aroundthe taps Review uniformity of clearances between the venturiand pipe walls Flange and gasket sealing surfaces, check fordamageComprehensive Report Outlining all the observations. Summary and recommendations. Independent review of the inspection report andrecommendations by an independent expert or lab.The AdvantageAs the leader in the water treatment industry, SiemensWater Technologies has the greatest depth of personneland technological resources to overcome any challenge.We offer the wide variety specialty products for thepower generating industry, including many customcomponents. Please contact us for additionalinformation about your specific requirements.In order to do the physical visual inspection, variousinstrumentation should be available at hand, usuallyavailable at site, such as high powered borescope /videoscope with HD video capture, vacuum gauges,corrosion erosion profile meters etc.9

Permutit Orifice Plates for EfficientMeasurement of Fluid FlowPermutit orifice plates are the simplest and mosteconomical differential pressure-producing deviceto measure fluid flow under pressure in closedpiping systems. Accurate to ±1%, Permutitorifice plates are the less expensive alternative toeither flow nozzles or Venturi tubes. Whenmeasurement tolerances are within their accuracycoefficient range, orifice plates are a practicalchoice for system control points.ApplicationsPermutit orifice plates measure liquids, gas orsteam in virtually all closed pressure pipingsystems. Utilized in both fossil fueled and nuclearpowered steam/electric generating plants, they areparticularly applicable for a wide range of boilerapplications from low pressure to supercritical.ConstructionPermutit orifice plates are machined from plate.Surface finishes range from 125 RMS to #4commercial grade. Depending upon yourapplication, materials of construction can include: Carbon steel Series 300 stainless steel Monel Copper-NickelQuality ControlWe have been the trusted source for all grades ofnuclear components for many years. Ourcapabilities include dissimilar metal welding andfabrication to ANSI and RDT specifications. Wemeet the requirements of the ASME Codes and10CFR50, Appendix B through our stringent qualityassurance program.10

AdvantagesAccuracy of ±1.0% over Beta ratios from0.2 – 0.7Lower cost than flow nozzlesVersatile design for a wide variety ofapplication, size and flow requirementsHighly flexible and can be provided inpiping sections built in accordance with10CFR50, Appendix B, ANSI B31.1(complete with all Q.A. documentation)The AdvantageAs the leader in the water treatment industry,Siemens Water Technologies has the greatestdepth of personnel and technological resourcesto overcome any challenge. We offer the widevariety of specialty products for the powergenerating industry, including many customcomponents. Please contact us for additionalinformation about your specific requirements.Design FeaturesPermutit orifice plates are offered inconcentric, eccentric or multi-hole designsand either paddle or ring typeconfigurationsAvailable in a full range of sizes, they canbe installed in pipes from 1/2" to 36"nominal diametersThey are designed to ASME and ISAStandards and can be supplied with ANSI300# orifice flanges or within a meter runAll variations of length, pressure rating,couplings and materials are available11

Permutube Series Advantages Low Permanent Pressure Loss – approximately 10% atbeta ratio 0.5 and above Low Pumping Costs – resulting from low-pressure loss Highly Flexible – meets a wide variety of size, flow andapplication requirements Rugged Design – limited only by the pressure limitations ofthe pipe in which they are installed Highest Quality – can be designed and manufactured toASME codes, ASME PTC-6 requirements and 10CFR50,Appendix B and ANSI B31.1Venturi Elements and Feedwater Flow MetersInsertion Type Permutube SeriesPermutit venturi elements offer unsurpassedaccuracy combined with the lowest pressure drop of alldifferential pressure-producing devices. Used formeasuring fluid flows under pressure in closed pipingsystems, our permutube series venturi elements offeran inherent accuracy of 0.5% when uncalibrated and0.25% when calibrated. At beta ratios of 0.5 andabove, pressure loss is approximately 10% for reducedoperating costs and head requirements. Thiscombination makes Permutit venturi elements thepreferred choice for measure and control points in allpower generation systems.ApplicationsPermutube series venturi elements precisely measuregas, steam or liquid flows in virtually all closedpressure piping systems. Utilized in both fossil fueland nuclear powered steam/electric generatingplants, they are ideal for high-pressure andsupercritical boiler systems, including feedwater andrecirculation loops.ConstructionPermutit venturi elements are machined fromeither forgings or centrifugal castings and surfacefinishes are available up to 4 RMS. Depending uponyour application, materials of construction caninclude: Carbon steel Series 300 stainless steel Monel Copper-Nickel TitaniumFeaturesPermutit permutube series venturi elements areoffered in a wide range of beta ratios to meet yourspecific performance requirements. They can bemanufactured in a wide variety of materials andsupplied with an averaging annulus for use in all typesof fluid measurement systems. Pressure connectionscan be either single high-low or multiple high-lowsets. Elements can be either factory installed in a pipelength or supplied separately for on-site installation byothers.12

Design Features Permutit flow venturis are offered in a wide range ofstandard sizes for either weld-in or flange mounting A wide variety of custom sizes and styles are availableto meet special requirements Low permanent loss - approximately 10% Special proprietory inlet profile available for lowfouling Standard nozzles provide accuracy of ±0.5% whenuncalibrated and ±0.25% when calibrated Feedwater flow meters are provided complete withflow straighteners, factory installed in pipe andcalibratedQuality ControlSiemens Water Technologies has been the trustedsource for all grades of nuclear and commercial venturielements for many years. Our capabilities includedissimilar metal welding and fabrication to ANSI andRDT specifications. We meet the requirements of theASME Codes and 10CFR50, Appendix B through ourstringent quality assurance program.The AdvantageAs the leader in the water treatment industry, SiemensWater Technologies has the greatest depth of personneland technological resources to overcome anychallenge. We offer the widest variety of specialtyproducts for the power generating industry, includingmany custom components. Please contact us foradditional information about your specificrequirements.13

Advantages Compact – units fit easily into small spaces Low Cost – standard XP Series units are available fromstock Easily Transportable – these demineralizers can beeasily transported from one location to another Versatile – units are available for cation or anionexchange or mixed bed demineralization Simple Installation – shipped complete, thesedemineralizers are easy to handle and designed forquick removal and replacementPermutit XP and NS SeriesNon-Regenerable DemineralizersPermutit versatile XP and NS Series nonregenerabledemineralizers offer simple, highperformance within a small footprint. They areavailable in Type 316 stainless steel in either ASMECode or Non-Code designs. Standard sizes include10", 16" and 30" diameters with 15" and 28"diameters available as special orders.ApplicationsThe XP Series models are ideal for decontaminatingwater containing soluble radioactive isotopes,where construction to ASME code specifications isnot required.For more stringent radioactive water applications,the NS Series models meet the requirements ofthe ASME Codes and 10CFR50 and 10CFR21.NS Series demineralizers are widely used fornuclear service. Each unit has resin retentionstrainers and sluicing connections to eliminatethe costly and cumbersome resin baskets usuallyoffered for this service.Quality ControlWe have been the trusted source for all grades ofnuclear and commercial demineralizers for manyyears. Our capabilities include dissimilar metalwelding and fabrication to ANSI and RDTspecifications. We meet the requirements of theASME Codes and 10CFR50, Appendix B throughour stringent quality assurance program.The AdvantageAs the leader in the water treatment industry,Siemens Water Technologies has the greatestdepth of personnel and technological resources toovercome any challenge. We offer the widestvariety of specialty products for the powergenerating industry, including many customcomponents. Please contact us for additionalinformation about your specific requirements.14

Design Features Inlet and Outlet Distributors – with our exclusivedesign, the stainless steel strainers ensure resinretention Sluicing Connections – these connections facilitaterapid resin removal and replacement Durable Construction Materials – stainless steel orbaked phenolic lined carbon steel pressure vesselsensure long-term, reliable operation Removable Cover Assembly – positive bolt closureassembly offers easy access to the interior of thevessel Lifting Lugs – all vessels are equipped with liftinglugs to facilitate handling15

SiemensWater Technologiesphone: 908.704.9027 ext. 104permutit.water@siemens.comPermutit is a trademark of Siemens, its subsidiariesor affiliates.ASME is a trademark of the American Society ofMechanical Engineers. ANSI is a trademark of theAmerican National Standards Institute.The information provided in this brochure containsmerely general descriptions or characteristics ofperformance which in actual case of use do notalways apply as described or which may change as aresult of further development of the products. Anobligation to provide the respective characteristicsshall only exist if expressly agreed in the terms ofcontract.PW-PERMGEN-BR-0110Subject to change without prior notice.© 2010 Siemens Water Technologies Corp.www.siemens.com/permutit