Product Catalog - DRI-STEEM

DISPERSION ASSEMBLIESFor nonpressurized steam• Guaranteed non-wetting distances• Dispersion tubes and panels for ducts andair handling units• Fan-based dispersion units for open spaces• High-Efficiency Dispersion Tube option

Drip-free steam dispersionGUARANTEED NON-WETTING DISTANCESUsing data collected in our on-site test lab, we have developed guaranteedsteam absorption (non-wetting) distances. The performance informationprovided by DriSteem allows you to confidently choose equipment that willaccommodate any application.DISPERSION TUBESDriSteem’s dispersion tubes are fitted withone or two rows of closely-spaced thermalresintubelets to evenly disperse steamacross the airstream.DISPERSION TUBE CROSS SECTIONSteamTubeletAir flowCondensateSteamOM-150aSteamCalibratedorificeDriSteem’s unique tubelets extend into thetube so only the driest steam is dischargedinto the air.LET DRICALC DO THE CALCULATING!DriCalc is our free sizing and selectionsoftware, available on our Tools tab atwww.dristeem.com.Or download our Humidification SystemDesign Guide, available on our Literaturetab. The guide walks you through theprocess of manually calculating load andthe entering and leaving RH.DRY STEAMAdding humidification to an airstream without creating wetness in the ductsystem is critical for the maintenance of a healthy environment. Wet areas inducts are a threat to the health of building occupants since they moisten dust onduct floors, creating ideal breeding grounds for disease-producing microbes. Inaddition, water accumulating in ducts can drip and cause building damage.STEAM EXITS DRIP-FREE THROUGH TUBELETSAll DriSteem evaporative dispersion tube units discharge steam throughthermal-resin tubelets fitted into dispersion tubes. These tubelets extend throughthe tube wall and into the tube where the steam is driest. In essence, thetubelets provide a temperature-neutral exit tunnel for steam, allowing steamto cross over lower-temperature metal without condensing or dripping. Eachtubelet contains a calibrated orifice sized for steam capacity. These tubelets area DriSteem exclusive and are essential for drip-free steam dispersion.CONDENSATE DRAINS AWAYSome condensation is inevitable in steam dispersion, but condensate can bemanaged through careful design.For example, Ultra-sorb ® Models LV and LH use gravity to remove condensate.Steam enters the supply header and exits through the tubelets, whilecondensate drains out the return header. Ultra-sorb Model XV, available asa dispersion option for STS humidifiers, has a heat exchanger that vaporizesdispersion-generated condensate.Rapid-sorb dispersion units manage steam velocities to ensure dispersion tubecondensate falls back into the supply header and exits the end of the header tobe drained away.REDUCE CONDENSATE, WASTED ENERGY WITH HIGH-EFFICIENCY TUBESDriSteem’s High-Efficiency Tubes reduce dispersion-generated condensate andwasted energy by up to 85%. See Page 8.2DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

Steam dispersion productsCHOOSE DISPERSION BASED ON AVAILABLENON-WETTING DISTANCENon-wetting distance is the dimension downstream fromthe dispersion assembly after which wetness will not occur.DriSteem dispersion products provide a range of nonwettingdistances. For example, under the same conditions,the duct dispersion products shown below achieve thenon-wetting distances shown. Some applications can havemuch shorter non-wetting distances.Single dispersion tube: 8' (2.5 m) non-wetting distance*ContentsDrip-free steam dispersion ..................... 2Steam dispersion products. .................... 3Duct and AHU dispersion products. .............. 4Quiet, fan-based dispersion options for open spaces . . 6High-Efficiency Dispersion Tubes ................ 8High-Efficiency Tube retrofit option ............... 9Choosing the installation location. .............. 10Piping between steam generator and dispersion .... 11Rapid-sorb dispersion tube system .............. 12Single dispersion tube ...................... 14Rapid-sorb: 4' (1.2 m) non-wetting distance*Space Distribution Units .................... 15Area-type fan. ............................ 19Steam generation, control, and pressurizedsteam dispersion .......................... 21Ultra-sorb: Less than 2' (0.6 m) non-wetting distance** Duct air speed up to 1,500 fpm (7.6 m/s), entering air10% RH, leaving air 90% RH at 55 °F (13 °C).Table 3-1Nonpressurized steam dispersion productsNonpressurized steam generatorsDispersion productsVaporstream ® Vapormist ® CRUV ® XT Series XTRGTS ®(Gas-to-steam)STS ®(Steam-to-steam)Ultra-sorb Model XV*XUltra-sorb Models LV and LH* X X X X X XRapid-sorb ® X X X X X XSingle dispersion tube X X X X X XXTR dispersion tubeXSpace Distribution Unit (SDU) X XXT steam blowerXXTR steam blowerXXTR fan packXArea-type dispersion fan X X X* Ultra-sorb steam dispersion panels can also be piped to disperse pressurized boiler steam.DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM3

Duct and AHU dispersion productsULTRA-SORB MODEL XV STEAM DISPERSION PANELHighest performance• Disperses humidification steam generated by an STS humidifier; pressurizedboiler steam in the integral heat exchanger vaporizes dispersiongeneratedcondensate• Guaranteed, short non-wetting distances — install within inches ofdownstream devices• Integral condensate management — heat exchangervaporizes dispersion-generated condensate, returnspressurized condensate to the boiler without additionalpumps, valves, vents, or controls• Most efficient dispersion– Zero water waste — condensate returned tothe boiler is still hot, saving energy, water,and boiler chemicals– Lowest heat gain — High-Efficiency Tubes andinsulated header reduce airstream heat gainby up to 85%OM-7781• Capacity up to 450 lbs/hr (204 kg/h) per panel; 5 psi (35 kPa) minimum heat exchangersteam pressure• See the Ultra-sorb Product Catalog at www.dristeem.comNote: Ultra-sorb Model XV can also be piped to disperse pressurized boiler steam withcapacities up to 1978 lbs/hr (898 kg/h).ULTRA-SORB MODEL LV AND LH STEAM DISPERSION PANELSMost versatile• Guaranteed, short non-wettingdistances — install within inches ofdownstream devices• Reduce wasted energy by up to 85%and increase capacity with optionalHigh-Efficiency Tubes (see Page 8)• Lowest installation cost — factoryassembled for easy installation• Capacity: Horizontal airflow up to 1850 lbs/hr (840 kg/h) per panelVertical airflow up to 600 lbs/hr (270 kg/h) per panel• See the Ultra-sorb Product Catalog at www.dristeem.comOM-636aNote: Ultra-sorb Models LV and LH can also be piped to disperse pressurized boiler steamwith capacities up to 4000 lbs/hr (1815 kg/h).4DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

Quiet, fan-based dispersion options for open spacesSPACE DISTRIBUTION UNITS (SDUs)• Designed for finished spaces• Mount on top of Vapormist humidifiers, or remotely disperse steam from Vapormistor Vaporstream humidifiers• Two SDU models:– SDU-I (internal absorption), steam absorbs within the enclosure with no visiblevapor– The SDU-E (external absorption) for larger capacities; visible steam outside ofenclosure as it absorbs into the air• Capacity: SDU-E 102 lbs/hr (46.3 kg/h)SDU-I 30 lbs/hr (13.6 kg/h)AREA-TYPE DISPERSION FAN• Designed for open spaces such as warehouses and manufacturing spaces that do nothave a duct system• Quietly disperses steam without introducing water droplets into the air• Mounts directly on top of GTS, STS, and Vaporstream humidifiers• Steam capacities up to 300 lbs/hr (136 kg/h)6DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

Quiet, fan-based dispersion options for open spacesXT STEAM BLOWERS• Mount on top of or remotely disperse steam from XT Series humidifiers• SDU-006E (shown at right): capacities up to 20 lbs/hr (9.1 kg/h)• SDU-017E: capacities up to 50 lbs/hr (22.7 kg/h)• See the XT Series Product Catalog at www.dristeem.comXTR STEAM BLOWER• Mount on top of or remotely disperse steam from XTR humidifier• Capacity up to 8.1 lbs/hr (3.6 kg/h)• See the XTR Product Brochure at www.dristeem.comXTR FAN PACK• Mounts flush in finished stud walls to disperse steam into open spaces• Capacities up to 8.1 lbs/hr (3.6 kg/h)• See the XTR Product Brochure at www.dristeem.comDISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM7

High-Efficiency Dispersion TubesDispersion tube heat loss vs. airspeed1600150014001300UninsulatedtubesThe PVDF insulation on High-Efficiency Tubes allows up to an85% reduction in wasted energy by significantly reducingairstream heat gain and condensate production. The energysavings can yield payback in less than one year.Btu/hr/linear foot of tube1200110010009008007006005004003002001000500 1000 1500 2000 2500 3000Air speed, fpmTubes withthermalinsulatingcoatingTubes insulatedwith stainlesssteel-shieldedair gapPVDF-insulatedtubesDriSteem developed PVDF insulation for humidificationapplications when no available material could providesignificant insulating results, withstand the environmentalchallenges of steam humidification, and meet strict plenumrequirements.High-Efficiency Tubes are featured on all Ultra-sorbModel XV dispersion panels. They are also an availableoption for Ultra-sorb Models LV and LH, Rapid-sorb, andSingle dispersion tube.Note:See our white paper, Reducing energyuse, airstream heat gain, and condensateproduction, (metric version also available) forduct conditions, basis of heat loss calculations,and insulation properties.ADVANCED INSULATION MEETS STRINGENT REQUIREMENTSPVDF is an advanced material commonly used in chemical, semiconductor,medical, defense, and aerospace industries and has the followingcharacteristics:• Approved for use in plenums: Flame spread/smoke developed values are0/0, exceeding UL 723 (ASTM E84) requirement of 25/50• Rated for high-temperature operation: Rated for 300 °F (149 °C) continuousoperation• Closed-cell structure: Will not absorb water or support microbial growthHIGH-EFFICIENCY TUBE CROSS SECTIONStainless steeldispersion tubeHeat-weldedinsulation seam• Will not shift or slip on tubes: Advanced manufacturing process ensuresinsulation remains securely attached to tubes• Odor free: Virtually no measurable outgassingTubeletorifice1/8"-thick(3.2 mm)PVDF insulationTubelet shouldersecures insulationto tube• Resistant to UV light• Rugged and durable: No particle erosion per ASTM C1071 erosionresistance test; does not contain fiberglassSEE OUR WHITE PAPERFor complete details on the breakthrough performance of High-EfficiencyTubes, see our white paper Reducing energy use, airstream heat gain, andcondensate production, available on our Literature page at www.dristeem.com.8DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

High-Efficiency Tube retrofit optionENGINEERED FOR EXISTING DISPERSION SYSTEMSDriSteem’s High-Efficiency Tubes are available as a retrofit optionfor existing Ultra-sorb Models LV and LH and Rapid-sorb steamdispersion assemblies.Energy efficiencies and water savings not previously available arenow possible as upgrades to currently installed steam dispersionpanels.The energy saved by a DriSteemdispersion panel with High-EfficiencyTubes will more than make up for thecost of replacing any uninsulated steamdispersion assembly.EXCELLENT PAYBACK POSSIBILITIESRetrofit High-Efficiency Tubes have short payback — usually lessthan two years.Retrofitting is easy!Remove the existing tubesORDERING AND RETROFITTING ARE EASYInstructions are provided in the High-Efficiency Tube OptionRetrofit Brochure, available on our Literature page atwww.dristeem.com.CALL NOWFor an application-specific payback analysis, using DriSteem'sHigh-Efficiency Tube Payback Estimator tool, contact DriSteem at800-328-4447 or your local DriSteem Representative.Install the High-Efficiency TubesDISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM9

Choosing the installation locationCheck available non-wetting distance, and review the recommendations in the figure below. The steam dischargelocation in a duct or an air handling unit (AHU) must be where the water vapor is absorbed into the airstream before itcan cause condensation or dripping.PLACEMENT IN AN AHU• In general, the dispersion assembly is best placed where the air can absorb the moisture being added withoutcausing condensation at or after the assembly. This normally will be after the heating/cooling coil.• Discharging steam against or perpendicular to the airstream gives slightly better mixing and absorption thandischarging steam with the airstream.• Place the dispersion assembly such that absorption will occur:– Before the intake of a high-efficiency filter, because the filter can remove the visible moisture and becomewaterlogged– Before coming in contact with any metal surface– Before fire or smoke detection devicesDISPERSION LOCATIONS IN AN AHUOutside airExterior buildingwallRelief airPreheatcoilFiltersEconomizercontrol deviceMotorizedair dampersReturnairflowCooling coilHeating coilSeenote 3Seenote 1Dispersion devices canbe installed in supplyduct (horizontal orvertical airflow).Best dispersion location. Installing downstream from coils allows laminar flowthrough the dispersion unit. Heated air provides the best absorption. Use multipledispersion tubes to ensure complete absorption of steam vapor before fan entry.Duct high limit humidity control*Airflow proving switch*FanSee note 2Supplyairflow* Install duct high limit and airflow proving switch• as far as possible downstream of dispersion, and• in a clear line of sight to dispersion, and• beyond the calculated non-wetting distance.Note: 8' to 12' (2.4 to 3.7 m) downstream fromthe dispersion assembly is ideal.Supply ductDC-1081Notes:1. When installing dispersion in this location, an operating cooling coil might eliminate some moisture for humidification.2. When installing dispersion on the positive side of a fan, install as far as possible downstream from the fan, where airflow through the dispersiondevice is most even.3. The cooler air at this location requires an increased absorption distance. For dispersion in this location and humidifying while cooling, use coolingcoil leaving conditions when calculating non-wetting distance.4. VAV systems: Airflow safety devices typically shut off steam production at air velocities below 250 fpm (1.3 m/s).mc_092507_153010DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

Piping between steam generator and dispersionCAPACITIES AND LENGTHS OF STEAM HOSE AND TUBINGTo maximize humidifier performance, follow the recommendations in Table 11-1 and all installation recommendations inthe steam generator IOM (available on our Literature page at www.dristeem.com).Table 11-1:Maximum steam carrying capacity and length of interconnecting steam hose and tubingSteam hose 1Copper or stainless steel tubingHose I.D. Maximum capacity Maximum length 2 Tubing size Maximum capacity 3Maximum developedlength 4inches DN lbs/hr kg/h ft m inches DN lbs/hr kg/h ft m1½ 40 150 68 10 3 1½ 40 150 68 20 62 50 250 113 10 3 2 50 220 100 30 91. When using steam hose, use DriSteem steam hose for best results.Field-supplied hose may have shorter life and may cause foaming inthe evaporating chamber resulting in condensate discharge at thedispersion assembly. Do not use steam hose for outdoor applications.2. Maximum recommended length for steam hose is 10' (3 m). Longerdistances can cause kinking or low spots.3 5 80 5 450 204 80 244 5 100 5 750 340 100 305 5 125 5 1400 635 100 306 5 150 5 2300 1043 100 303. Insulate tubing to minimize loss of capacity and efficiency.4. Developed length of tubing equals measured length plus 50% ofmeasured length, to account for fittings.Longer tubing lengths are possible at capacities lower than listedmaximums. Consult DriSteem.5. Requires flange connection.Notes:• Capacities and lengths in this table are based on total maximum pressure drop in hose or tubing of 5" wc (1250 Pa).• Not all steam hoses and tubing diameters in this table are applicable to all steam generators and dispersion devices.• This table does not apply to electrode humidifiers. See the XT Series Humidifier Product Catalog (available on our Literature page atwww.dristeem.com) for detailed electrode humidifier steam piping guidelines.mc_091410_1050-DispCatDRIP TEEWhen a vertical riser is required in the steam tubing, such as when piping around an obstruction, a drip tee is requiredin order to eliminate a condensate collection point that will restrict steam flow. See below.90° long sweep or two 45° elbowsPitchTo dispersion assemblyInsulate tubing to reduce steam lossPitchTubing drip tee6" (150 mm) recommendedDriSteemsteamgeneratinghumidifier3/4" (DN20)1" (25 mm)air gapOM-76808" (200 mm) recommendedOpen funnel or floor drainDISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM11

Rapid-sorb dispersion tube systemDriSteem’s Rapid-sorb steam dispersion panels provide short non-wettingdistances, compared to a Single dispersion tube, in ducts and AHUs.Rapid-sorb disperses steam from any DriSteem nonpressurized-steamgeneratinghumidifier, except XTR.RAPID-SORB DISPERSION TUBE SYSTEMRapid-sorb steam dispersion panels are designed for systems where multipletubes are needed to handle the load and/or the available non-wetting distanceis limited.High-Efficiency Tubes are an available option for new and retrofit Rapid-sorbjobs. See Page 8.Note: For important installation, operation, and maintenance information, seethe steam generator IOM, available on our Literature page atwww.dristeem.com.With uninsulated tubesTable 12-1:Rapid-sorb tube capacities*Tube diameterInsulated(High-Efficiency Tubes)Uninsulatedinches DN lbs/hr kg/h lbs/hr kg/h1½ 40 43 19.5 40 18.22 50 80 36.4 77 35* Capacities shown are for horizontal airflow. See DriCalc for vertical airflow capacities. If faceheight is

Rapid-sorb dispersion tube systemRAPID-SORB DIMENSIONSAFE1½" (DN40) dia. dispersiontubes use slip coupling2" (DN50) dia. dispersion tubesuse hose cuff and clampsBHeader outside ductCHPitch header toward drainEscutcheon plateOM-3005G Header inside duct or AHU DNote: Add water seal to condensate drain as shown in the DriCalc Installation Guides and the humidifier’s Installation, Operation, andMaintenance manual.Table 13-1:Rapid-sorb dimensionsDescriptionDimensionA Face width 12" to 240" in 1" increments (305 mm 6100 mm in 25-mm increments)B Face height 12" to 120" in 1" increments (305 mm 3050 mm in 25-mm increments)C Steam inlet Determined by humidifier maximum capacityD Condensate drain 3/4" pipe thread (DN20)E Distance from tube center to inside of duct or AHU wall 4.5" (114 mm) minimumFTube center distance4", 6", 9", 12", 18", 24", or 36"(102, 152, 229, 305, 457, 610, or 914 mm)G Distance from outside of duct or AHU wall to end of Rapid-sorb leader 4.5" (114 mm) minimumH Header diameter 2" to 6" in 1" increments (DN 50, 80, 100, 125 and 150)Note: All Rapid-sorb systems are custom-sized and field-assembled to fit the duct or air handler. Consult DriSteem for sizes larger or smaller thanthose listed above.DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM13

Single dispersion tubeDriSteem’s Single dispersion tube provides a low-capacity dispersion option forducts and AHUs. It disperses steam from any DriSteem nonpressurized-steamgeneratinghumidifier (except the XTR electrode humidifier, which uses the XTRdispersion tube).SINGLE DISPERSION TUBEWith condensate drainThe High-Efficiency Tube is an available Single dispersion tube option. SeePage 8.Note: For important installation, operation, and maintenance information,see the steam generator IOM, available on our Literature page atwww.dristeem.com.Without condensate drainSINGLE DISPERSION TUBE WITH CONDENSATE DRAINPitch: See Notes4.5" (114 mm) minimum from top of ductPitch 1/8" per ft (1%)DriSteemsteamgeneratinghumidifier6" (152 mm)OM-496b5" (127 mm)1" (25 mm) air gap4.5" (114 mm) minimumfrom bottom of ductCondensate drain.Pitch 1/4" per ft (2%)Recommended pitch toward humidifierfor interconnecting hose or tubing:• Steam hose: 2" per ft (15%)• 1½" tubing : 1/2" per ft (5%)• 2" tubing: 1/4" per ft (2%)SINGLE DISPERSION TUBE WITHOUT CONDENSATE DRAINPitch: See NotesPitch 2"/ft (15%)4.5" (114 mm) minimum from topof ductDriSteemsteamgeneratinghumidifierOM-496aRecommended pitch toward humidifierfor interconnecting hose or tubing:• Steam hose: 2" per ft (15%)• Tubing: 1/8" per ft (1%)Table 14-1:Single dispersion tube capacities*Tube sizeInsulatedUninsulated(High-Efficiency Tubes)Without drain With drain Without drain With draininches DN lbs/hr kg/h lbs/hr kg/h lbs/hr kg/h lbs/hr kg/h1½ 40 29 13.2 65 29.5 28 12.7 62 28.22 50 65 29.5 97 44.1 62 28.2 93 42.3Notes:* If face width is

Space Distribution Units (SDUs)SDU-I AND SDU-EDriSteem offers two Space Distribution Units:With the SDU-I (internal absorption), steam absorbs within the enclosure withno visible vapor. The SDU-I fan mixes room air and steam to ensure completeabsorption before discharge as humidified air. The SDU-I is ideal for spaceswhere the presence of vapor creates either a visual problem or a condensationrisk.The SDU-E (external absorption) is designed for larger capacities, with steamvisible outside of the enclosure as it absorbs into the air.SDU-I and SDU-E both offer extremely quiet, reliable steam dispersion.Vapormist humidifier with matching SDUNote: For important installation, operation, and maintenance information, see the steam generator IOM,available on our Literature page at www.dristeem.com.SDU-I IS AVAILABLE FOR:• Vapormist humidifier models VM-2 through VM-8• Vapormist humidifier model VM-10 (except those using 240V, three-phase power with SSR control)• Vaporstream humidifiers with maximum steam capacity of up to 30 lbs/hr (13.6 kg/h)Note: Maximum ambient RH must not exceed 45% for the SDU-I to operate properly.SDU-E IS AVAILABLE FOR:• All Vapormist humidifiers (except models using 240V/480V/600V/three-phase power with the SSRcontrol option and drawing more than 21.7 amps)• All Vaporstream humidifiers with a maximum steam capacity up to 102 lbs/hr (46.3 kg/h)Table 15-1:SDU specifications**SDU modelMaximum capacityShipping weightlbs/hr kg/h lbs kgAmps at 120V(50/60 Hz)Horsepower cfm m 3 /s Sound*SDU-I 30 13.6 68 31 3.20 1/5 760 0.36 58 dBSDU-E 102 46.3 61 28 2.07 1/8 545 0.26 64 dB* Measurement taken 6.5' (2 m) in front of SDU cabinet.** For visible vapor to be absorbed completely within the SDU-I enclosure before being discharged as humidified air, room air must be 45% RHor less. Trying to maintain greater than 45% RH will cause visible vapor and potential for moisture collection on the discharge grille.DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM15

Space Distribution UnitsSDU-E RISE, SPREAD, AND THROWSDU-E RISE, SPREAD, AND THROWAs steam is discharged from the SDU-E, it quickly cools and turns to a visiblefog that is lighter than air. As this fog is carried away from the SDU-E by theairstream, it tends to rise. If this fog contacts solid surfaces (columns, beams,Steam outletAir intakeceiling, pipes, etc.) before it disappears, it can collect and drip as water.grille16 DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM The greater the space relative humidity, the greater the distance fog will rise, Risespread, and throw.Spread ThrowDC-1027The table below lists the minimum rise, throw and spread non-wettingdistances for SDU-E area-type humidifiers at 40%, 50% and 60% RH inthe space. Surfaces or objects located within this minimum dimension cancause condensation and dripping. To avoid steam impingement, observe theminimum non-wetting distances in the table below.The SDU-E contains a 545 cfm (0.26 m 3 /s) blower (120 V, single-phase,60 Hz) and an airflow proving switch field-wired to the humidifier electricalpanel. A wiring diagram of the SDU-E is included with the unit.On a call for humidity, the humidifier begins producing steam and the startrelay energizes the SDU-E blower. When the call for humidity is satisfied,the Vapor-logic ® controller keeps the blower running on a five-minute(user-adjustable) time delay to disperse residual moisture.Table 16-1:SDU-E rise, spread, and throw minimum non-wetting distancesMaximum steam40% RH @ 70 °F (21 °C) 50% RH @ 70 °F (21 °C) 60% RH @ 70 °F (21 °C)kWcapacityRise Spread Throw Rise Spread Throw Rise Spread Throwlbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m2 6 2.7 1.0 0.3 1.0 0.3 5.0 1.5 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.34 12 5.4 1.0 0.3 1.0 0.3 5.0 1.5 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.36 18 8.2 1.0 0.3 1.0 0.3 5.0 1.5 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.38 24 10.9 1.0 0.3 1.0 0.3 5.5 1.7 1.5 0.5 1.5 0.5 6.5 2.0 2.5 0.8 2.5 0.8 7.5 2.310 30 13.6 1.5 0.5 1.5 0.5 6.0 1.8 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 8.0 2.512 36 16.3 1.5 0.5 1.5 0.5 6.0 1.8 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 8.0 2.514 42 19.1 2.0 0.6 2.0 0.6 7.0 2.1 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 9.0 2.716 48 21.8 2.0 0.6 2.0 0.6 7.0 2.1 2.0 0.6 2.0 0.6 7.0 2.1 3.0 1.0 3.0 1.0 9.0 2.721 63 28.6 2.0 0.6 2.0 0.6 7.5 2.3 2.5 0.8 2.5 0.8 10.0 3.0 3.0 1.0 3.0 1.0 12.0 3.725 75 34.0 2.0 0.6 2.0 0.6 8.0 2.5 2.5 0.8 2.5 0.8 10.5 3.2 3.5 1.1 3.5 1.1 12.5 3.830 90 40.9 2.0 0.6 2.0 0.6 8.0 2.5 2.5 0.8 2.5 0.8 10.5 3.2 3.5 1.1 3.5 1.1 12.5 3.834 102 46.3 2.0 0.6 2.0 0.6 8.0 2.5 2.5 0.8 2.5 0.8 10.5 3.2 3.5 1.1 3.5 1.1 12.5 3.8Notes:• Surfaces or objects directly in the path of vapor discharge may cause condensation and dripping.• To avoid steam impingement on surrounding areas, observe the minimum non-wetting dimensions in this table.• Rise: The minimum non-wetting height above the steam outlet of the SDU-E.• Spread: The minimum non-wetting width from the steam outlet of the SDU-E.• Throw: The minimum non-wetting horizontal distance from the steam outlet of the SDU-E.mc_042710_1300

Space Distribution UnitsVAPORMIST MOUNTINGVAPORMIST WITH AN SDU-ISDU MOUNTINGMount the SDU to wall studs using the template on thebox. Two lag bolts are provided with each unit.Keyhole for3/8" dia.(M10) fasteners3" (76 mm)16" (406 mm)SDU chassisSDUs can be mounted directly above the Vapormistcabinet (as shown at left) or mounted remotely for usewith Vapormist or Vaporstream humidifiers.Maintain clearances as shown. Provide at least 6" (152mm) clearance on each side of an SDU when mountedremotely. See also Table 16-1.18.02"(458 mm)3" (76 mm)Keyhole for3/8" dia.(M10) fasteners16" (406 mm)17.75"(451 mm)18.50"(470 mm)0.25"(6.4 mm)Note: SDU-E requires a field-installed condensate drainline. See below.SDU-E DRAIN LINE PIPINGInstall SDU-E frameplumb and levelOM-1245Vapormistchassis24" (610 mm)OM-282-4UnionElbowVAPORMIST WITH AN SDU-EKeyhole for 3/8" dia.(M10) fasteners16" (406 mm)SDU chassis1" (25 mm)air gapDrain connection4" (102 mm)Dispersion box3/4" pipe thread (DN20) dispersion box drainand P-trap piping, rated for 212 °F (100 °C).Spill funnel. Plumb to floor drain.3" (76 mm)18.02"(458 mm) 16" (406 mm)16"(406 mm)Open floor drain. Refer to governing codesfor drain pipe size and maximum temperaturerequirements.3" (76 mm)2"(51 mm)Keyhole for 3/8"dia. (M10) fasteners18.5"(470 mm)VapormistchassisOM-282-724" (610 mm)DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM17

Space Distribution Units: Remote mountingSDU-I FIELD WIRING FOR VAPORSTREAMSDU-I MECHANICAL DETAILFRONT VIEWSIDE VIEWSDU-I cabinetwith shroudremoved24.2" (615 mm)Humidified airdischarge grille16.1" (409 mm)18.6"(472 mm)DC-1076Vaporstreamcontrol cabinetsubpanelVLC-OM-03210.9"(276 mm) 1½" (DN40) steam inletAir intakegrille 2.25"(57 mm)SDU-E FIELD WIRING FOR VAPORSTREAMSDU-E MECHANICAL DETAILFRONT VIEWSIDE VIEWSDU-E cabinetwith shroudremovedSteamoutlet3/4" (DN20)pipe threaddrain nipple.See notebelow.24.2" (615 mm)16.1" (409 mm)18.6"(472 mm)Vaporstreamcontrol cabinetsubpanelVLC-OM-0243.2" (82 mm)10.9"(276 mm)DC-10781½" (DN40)or 2" (DN50)steam inletSteam inletNote: SDU-E requires an installed condensate drain line and water seal, provided by installer.See drain line piping drawing on Page 17.2.25"(57 mm)SDU MOUNTED REMOTELYSDU-I or SDU-E(SDU-E shown)Vapormist orVaporstreamhumidifierOM-56a18DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

Area-type fanThe Area-type fan disperses steam in large open spaces and is commonly usedwhere there are no air-handling ducts. The fan distributes steam quietly andefficiently without introducing water droplets into the air.AREA-TYPE FANAREA-TYPE FAN IS AVAILABLE FOR:• Vaporstream humidifiers, Models 6-1 through 100-4• GTS humidifiers, Models 100 through 400• STS humidifiers operating at capacities up to 300 lbs/hr (136 kg/h)Note: For important installation, operation, and maintenance information,see the steam generator IOM, available on our Literature page atwww.dristeem.com.AREA-TYPE RISE, SPREAD, THROWRise: Minimum non-wetting height above the steam chuteSpread: Minimum non-wetting width from the steam chuteThrow: Minimum non-wetting horizontal distance from thesteam chute. See Table 20-1SpreadTable 19-1:Area-type fan specifications3-speed electric motor120V, 50/60 HzRiseAmps at high speed 1.52ThrowHigh speedAirflow at high speedBlade diameterControl1500 rpm3190 cfm (1.51 m 3 /s)18" (457 mm)Rotary switchOM-1230DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM19

Area-type fanTable 20-1:Rise, spread, and throw minimum non-wetting distances (nonpressurized steam) *Maximum steamcapacity60 °F (16 °C)30% RH 40% RH 50% RHRise Spread Throw Rise Spread Throw Rise Spread Throwlbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m50 20 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.0 0.6 6.0 1.8 1.0 0.3 2.5 0.8 6.0 1.875 34 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 4.0 1.2 8.0 2.4100 45 4.0 1.2 4.0 1.2 10.0 3.1 4.0 1.2 4.0 1.2 10.0 3.1 4.0 1.2 5.0 1.5 10.0 3.1150 68 6.0 1.8 5.0 1.5 12.0 3.7 6.0 1.8 5.0 1.5 12.0 3.7 6.0 1.8 5.0 1.5 12.0 3.7200 90 7.0 2.1 7.0 2.1 13.0 4.0 8.0 2.4 7.0 2.1 14.0 4.3 8.0 2.4 7.0 2.1 14.0 4.3225 102 7.0 2.1 7.0 2.1 13.0 4.0 8.0 2.4 7.0 2.1 14.0 4.3 8.0 2.4 7.0 2.1 14.0 4.3250 110 8.0 2.4 8.0 2.4 15.0 4.6 9.0 2.7 9.0 2.7 16.0 4.9 9.0 2.7 9.0 2.7 16.0 4.9285 130 9.0 2.7 9.0 2.7 17.0 5.2 10.0 3.1 10.0 3.1 18.0 5.5 10.0 3.1 10.0 3.1 18.0 5.5300 136 9.0 2.7 9.0 2.7 17.0 5.2 10.0 3.1 10.0 3.1 18.0 5.5 10.0 3.1 10.0 3.1 18.0 5.5Maximum steamcapacity70 °F (16 °C)30% RH 40% RH 50% RHRise Spread Throw Rise Spread Throw Rise Spread Throwlbs/hr kg/h ft m ft m ft m ft m ft m ft m ft m ft m ft m50 20 1.0 0.3 1.5 0.5 4.0 1.2 1.0 0.3 2.0 0.6 4.0 1.2 1.0 0.3 2.0 0.6 4.0 1.275 34 2.0 0.6 2.0 0.6 6.0 1.8 2.0 0.6 2.5 0.8 6.0 1.8 2.0 0.6 2.5 0.8 6.0 1.8100 45 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4 3.0 0.9 3.0 0.9 8.0 2.4150 68 4.0 1.2 4.0 1.2 10.0 3.1 4.0 1.2 4.0 1.2 11.0 3.4 4.0 1.2 4.0 1.2 11.0 3.4200 90 5.0 1.5 5.0 1.5 11.0 3.4 5.0 1.5 5.0 1.5 12.0 3.7 5.0 1.5 5.0 1.5 12.0 3.7225 102 5.0 1.5 5.0 1.5 11.0 3.4 5.0 1.5 5.0 1.5 12.0 3.7 5.0 1.5 5.0 1.5 12.0 3.7250 110 6.0 1.8 6.0 1.8 12.0 3.7 6.0 1.8 6.0 1.8 13.0 4.0 6.0 1.8 6.0 1.8 14.0 4.3285 130 7.0 2.1 7.0 2.1 14.0 4.3 7.0 2.1 7.0 2.1 15.0 4.6 7.0 2.1 7.0 2.1 16.0 4.9300 136 7.0 2.1 7.0 2.1 14.0 4.3 7.0 2.1 7.0 2.1 15.0 4.6 7.0 2.1 7.0 2.1 16.0 4.9* With fan on high speed20DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM

Steam generation, control, and pressurized steam dispersionFor more information about these products, see our Products page atwww.dristeem.com.STEAM INJECTION HUMIDIFIERSDriSteem's Steam Injection humidifiers use pressurized steam from anexternal source, such as an in-house boiler or a district steam system. Theyare adaptable to virtually any size application, and a wide variety of modelsaccommodate a broad range of steam absorption requirements.STEAM INJECTION HUMIDIFIERSELECTRIC HUMIDIFIERSDriSteem electric humidifiers can be installed in a variety of applications andmounting configurations. They are compatible with a wide range of RH controloptions, water types, and a wide range of capacities and steam dispersionmethods.GAS HUMIDIFIERSThe industry’s first and best-selling gas-to-steam humidifier, the DriSteemGTS humidifier continues to be your best choice for reducing energycosts — both consumption and demand charges. The broad capacity rangeand comprehensive control make GTS the ideal choice for almost anyapplication.ELECTRIC HUMIDIFIERSGTS HUMIDIFIERSTEAM-TO-STEAM HUMIDIFIERThe STS steam-to-steam humidifier creates chemical-free humidification steamusing boiler steam as its energy source. It accomplishes this by using boilersteam in its heat exchanger to vaporize clean fill water into humidificationsteam. It's a closed-loop system, so no boiler steam or chemicals enter thehumidified space; they return to the boiler.STS HUMIDIFIERCONTROLLERS, ACCESSORIES, AND OPTIONSDriSteem’s humidification system controllers, accessories, and options expandsystem performance and flexibility. Comprehensive microprocessor-basedcontrol and diagnostics, drain-water tempering, High-Efficiency Tubes, outdoorenclosures, weather covers, and custom rack systems are just some of the waysDriSteem makes humidification systems more flexible during installation andmore robust after startup.ACCESSORIES AND OPTIONS(heated/ventilated Outdoor Enclosure shown)DISPERSION ASSEMBLIES FOR NONPRESSURIZED STEAM21

DriSteem CorporationA subsidiary of Research Products CorporationAn ISO 9001:2000 certified companyU.S. Headquarters:14949 Technology DriveEden Prairie, MN 55344800-328-4447 or 952-949-2415952-229-3200 (fax)European office:Marc BriersGrote Hellekensstraat 54 bB-3520 ZonhovenBelgium+3211823595 (voice)+3211817948 (fax)E-mail: marc.briers@dristeem.comContinuous product improvement is a policyof DriSteem Corporation; therefore, productfeatures and specifications are subject tochange without notice.EXPECT QUALITY FROM THE INDUSTRY LEADERFor more than 45 years, DriSteem has been leading the industry withcreative and reliable humidification solutions. Our focus on quality isevident in the construction of our steam dispersion assemblies. DriSteemleads the industry with a Two-year Limited Warranty and optionalextended warranty.For more informationwww.dristeem.comsales@dristeem.comFor the most recent product information visit our website:www.dristeem.comYour DriSteem Representative is:CRUV, DriSteem, GTS, Rapid-sorb, STS,Ultra-sorb, Vapor-logic, Vapormist, andVaporstream are registered trademarks ofResearch Products Corporation and are filedfor trademark registration in Canada and theEuropean community.Product and corporate names used in thisdocument may be trademarks or registeredtrademarks. They are used for explanation onlywithout intent to infringe.© 2013 Research Products CorporationForm No. Dispersion-Product-Catalog-013