Steam Trap - Valorx .tw
For Steam applicationsranging up to:1,100 F (593 C)0-2,600 psi (179 bar)Save up to 30% in Energy Extracting Part of the Sensible Heat
VELAN COMPANY PROFILEVelan is one of the world's leading manufacturers of industrial valves,supplying forged and cast steel gate, globe, check, ball, butterfly, knife gateand engineered severe service valves for critical applications in power,chemical and petrochemical, oil and gas, pulp and paper, mining, marine,cryogenic and general construction industries.Founded in 1950, Velan earned a reputation for excellence as a major supplierof forged valves to nuclear power plants and the U.S. Navy. Velan haspioneered many innovative valve designs, emphasizing quality, safety, easeof operation, low emissions, simple in-line maintenance and long cycle life.Velan’s 21 product lines are manufactured in 12 specialized manufacturingplants, including six in Canada and U.S.A., three in Europe, and three in Asia.We have 1,500 employees, 75% of whom are located in our North Americanoperations.THE ORIGINAL VELAN STEAM TRAPVelan is pleased to announce that we havereacquired the Velan universal steam trapline produced for 15 years by Plenty SteamProducts. This comprehensive range of steamtraps is based on a unique design that wasdeveloped and patented by A.K. Velan,President and CEO of Velan Inc., and is nowcopied by major steam trap manufacturers.Once again, you can trust Velan to supplyhigh quality steam traps for virtually all ofyour condensate drainage applications.CONTENTSManufacturing Plants .1Principles of Operation. 2, 3How it Works .4, 5Forged Universal Bimetallic Steam TrapsTypes TS, TSF & SF . 6, 7Universal Bimetallic Steam TrapsType SSF . 8, 9Forged HP/HT Steam TrapsType N . 10, 11Hermetically Sealed Steam TrapsType Q250 . 12, 13High Capacity Piston OperatedSteam Traps Type SPF & SP. 14, 15Piping King Package Units . 16-19Monovalve Float Bimetallic Steam TrapsType MFT & MFTS . 20-22Space Heating Steam Traps Type ACF . 23Thermodynamic Steam TrapsType HPTD, PTD & VTS . 24, 25Compressed Air Drain TrapsType MFA & MFAS . 26, 27Strainers. 28Accessories.29Comparison of Principles of Operation .31Selection - Sizing .32How to Order . 33HEAD OFFICE & PLANT 5MONTREAL, CANADA 115,000 sq. ft. (10,683 m2)3 – 24” (80 –600 mm) butterfly, 3 8 – 4” (10 –100 mm) metal & resilient seated ball valvesMANUFACTURING LOCATIONSCANADAVELAN INC.HEAD OFFICE & PLANT 57007 Côte de LiesseMontreal, QC H4T 1G2Tel: (514) 748-7743Fax: (514) 748-8635PLANT 12125 Ward AvenueMontreal, QC H4M 1T6Tel: (514) 748-7743Fax: (514) 748-8635PLANT 2 / 7550 McArthur Ave.Montreal, QC H4T 1X8Tel: (514) 748-7743Fax: (514) 341-3032PLANT 4 / 61010 Cowie StreetGranby, QC J2J 1E7Tel: (450) 378-2305Fax: (450) 378-6865PROQUIP835 Fourth LineOakville, ON L6L 5B8Tel: (905) 842-1721Fax: (905) 849-0923DISTRIBUTION CENTERSU.S.A.FRANCETAIWANU.S.A.GERMANYVELAN VALVECORPORATIONPLANT 394 Avenue CWilliston, VT 05495-9732Tel: (802) 863-2562Fax: (802) 862-4014VELAN S.A.S90, rue Challemel LacourF 69 367 Lyon Cedex 7Tel: (33) 4 78 61 67 00Fax: (33) 4 78 72 12 18VELAN-VALVACP.O. Box 2020Taichung, TaiwanR.O.C.Tel: (04) 2792649Fax: (886) 42750855VELCAL537 Stone Road, Unit "A"Benicia, CA 94510Tel: (707) 745-4507Fax: (707) 745-4708VELAN GmbHDaimlerstrasse 8D-47877 WillichTel: (49) 2154/4938-00Fax: (49) 2154/4938-99ENGLANDVELAN VALVES LTD.Unit 1, Pinfold RoadLakeside Business ParkThurmastonLeicester LE4 8ASTel: 44-116 269-5172Fax: 44-116 269-3695PORTUGALVELAN VÁLVULASINDUSTRIAIS, LDA.Av. Ary dos Santos1679-018 FamoesTel: (351-21) 934-7800Fax: (351-21) 934-7809KOREAVELAN LTD.1060-4 Shingil-DongAnsan City,Kyunggi-do 425-833Tel: (82) 31-491-2811Fax: (82) 31-491-2813VELEAST605 CommercePark Drive SEMarietta, GA 30060Tel: (770) 420-2010Fax: (707) 420-7063GENERALINFORMATIONTel: 44-116 269-5172Fax: 44-116 269-3695steamtraps@velan.comVisit the Velan website at www.velan.com for an updated contact list.Velan has sales offices and distributors located worldwide.NOTE: The material in this catalog is for general information. For specific performance data and proper material selection, consult yourVelan representative. Although every attempt has been made to ensure that the information contained in this catalog is correct,Velan reserves the right to change designs, materials or specifications without notice.
MANUFACTURING PLANTS AROUND THE WORLDPLANT 1PLANT 3MONTREAL, CANADA 109,000 sq. ft. (10,126 m2) 1 4 –4” (8 –100 mm)forged gate, globe & check valves, ASME ‘N’ stamp, ISO 9001WILLISTON, VERMONT, U.S.A. 155,000 sq. ft. (14,400 m2)2 –24” (50–600 mm) forged and cast steel gate, globe and checkvalves, ASME ‘N’ stamp, ISO 9001PLANT 2 & 7MONTREAL, CANADA 170,000 sq. ft. (15,800 m2) 2 – 60” (50–1500 mm)forged and cast steel gate, globe, check, ball, knife and butterflyvalves 26– 36” (650–700 mm) ASME ‘N’ stamp, ISO 9001LYON, FRANCE 160,000 sq. ft. (14,900 m2) 1 4 –40” (8–1,000 mm)forged and cast steel gate, globe and butterfly valves, ISO 9001PLANT 4 & 6GRANBY, CANADA 186,500 sq. ft. (17,325 m2)2–12” (50 –300 mm) cast steel gate and check valves,1 4 –12” (8–300 mm) ball valves, ISO 9001LISBON, PORTUGAL 60,000 sq. ft. (5,600 m2) ISO 90022–12” (50–300 mm) cast steel gate, globe and check valvesANSAN CITY, SOUTH KOREA Plant 1 30,000 sq. ft. (2,800 m2)components and 2–4” (50–100 mm) cast steel valves, ISO 9002TORONTO, CANADA Velan-Proquip 41,000 sq. ft. (3,800 m2)2– 48” (50 – 1200 mm) wafer check valves1 2 – 24” (15 – 600 mm) clamp joint connectors, ISO 9001ANSAN CITY, SOUTH KOREA Plant 2 65,000 sq. ft. (5,800 m2)6–12” (150 –300 mm) cast steel gate, globe, check, balland knife gate valves, ISO 9002WILLICH, GERMANY 12,000 sq. ft. (1,115 m2) ISO 9002TAICHUNG, TAIWAN Velan-Valvac 20,000 sq. ft. (1,840 m2)1 4 –2” (8–50 mm) ball valves, ISO 9002LEICESTER, ENGLAND 14,000 sq. ft. (1,300 m2) ISO 9002, steam traps,3 8–2” (10–50 mm) bonnetless globe valves 1 2 – 2” (15 – 50 mm)1
PRINCIPLES OF OPERATIONThe Original “Universal” Bimetal PrincipleActuates Velan Steam TrapsWHAT IS BIMETAL? Velan Steam Trapsuse a bimetal ofhigh tensilestrength, stable athigh temperaturewith deflectionlimited to 600 F(315 C) to preventover-stressing onsuper-heatedsteam service.Bimetal is a compositemetal comprising twoor more metalliclayers with differentcoefficients ofexpansion, whichchanges curvaturewhen subjectedto heat.THE CLOSING FORCE OF THE BIMETALLIC ELEMENTSFOLLOWS THE SATURATED STEAM 200AC120C10150B100Single element550000200 212 250 287 3001001.2.3.4.1350400142 150Steam Temperature232004402254Free deflection up to 212 F (100 C)One segment pulling 0-40 psi (0-2.8 bar) up to 287 F (142 C)Two segments pulling 40-120 psi (2.28-8.3 bar) up to 350 F (177 C)Three segments pulling 120-350 psi (8.3-24 bar) up to 440 F (227 C)20bar10psi50lbMultielementSteam PressureChart 1 illustrates the truly universal operatingprinciple behind the Velan steam trap. Eachsegment acts consecutively, covering thecomplete operating pressure range withoutadjustment or orifice change. With a singleelement the temperature differential to openthe steam trap would be BC1 (66 F/37 C)instead of BC (8 F/4.4 C) and the requiredclosing force would be BA1 (20 lb/90 N) insteadof BA (5 lb/22 N).70NA non-segmented bimetallic element wouldhave a straight-line characteristic and the trapwould only react to large temperaturedifferentials, whereas the Velan segmentedelement automatically compensates for anypressure condition within its range, andmaintains the sensitivity to release condensateat below steam temperature without loss ofsteam.Chart 1 Operating Principle of Velan Steam TrapsPull of BimetalThe force of line pressure acting on the valveball holds it open when condensate or air is inthe trap. Line pressure, valve and orificediameter determine this force. For a 1/2”(12.7 mm) orifice at 150 psi (10.3 bar) linepressure develops a force of 30 lb (134 N).To close the valve on steam the bimetallicelement must develop a pull of at least 35 lb(156 N) with three segments. The patentedVelan multi-segment design was developed sothat the thermal pull of the bimetal elementwould closely follow the saturated steam curveand use only the portion of the elementrequired to overcome the opening force atsaturated steam temperature.
PRINCIPLES OF OPERATIONThe Velan Patented Bimetal Principleas Applied to Meet Various Requirements2505020015402001015030Element 1, 2 & 310020Element 1 & 25ed eat urvrtu CSa ameSt50Element 100150100105000NChart 2 illustrates the bimetalclosing force developed atsaturated temperature in relationto the line pressure tending toopen the valve. The gradualincrease in force, following thesteam curve, is a function of thepatented segmentation principle ofthe element. The delicate balanceof opening and closing forcesexists in all pressure ranges suchas 0-200, 0-350, 0-600, 0-1500,500-2500 psi (0-14, 0-21, 0-41,0-103, 35-172 bar), and producescomplete universal operationthroughout the pressure rangewithout adjustment or orificechange. See page 4 formore details.250–3–2–1lb 60300barpsiUNIVERSAL STEAM TRAPPRINCIPLE20ElementClosingForcesSteamPressure65 1001815050200250300100150Steam Temperature350400200Chart 2 The patented Multi-element Principle.4020015030101002010050ed eat urvrtu CSa ameSt0SteamPressure65 1001820050300100150Steam Temperature400200Chart 3 The patented Multi-element Principle combined with a float.3105000NChart 3 illustrates the operation ofthe combination of a bimetal andfloat element utilized in thefloat/bimetallic series. In thisprinciple, the bimetal is used toclose the valve at saturatedtemperature or release cool airin the system. However a smallaccumulation of condensatein the trap body lifts the floatand opens the discharge valve.No temperature depression isrequired for this process and,as a result, the characteristic isidentical to the saturated steamcurve. The steam trap shuts offin the presence of steam andopens at once in the presenceof condensate even at saturatedsteam temperature. See page 5for more details.lb 20015barpsiFLOAT BIMETALLICPRINCIPLEElementClosingForces
HOW IT WORKSTHE 4 PURPOSE VALVE AND ITS FUNCTIONIN THE VELAN UNIVERSAL BIMETALLIC STEAM TRAPFAST WARM UPPOSITIVE TRAPPINGThe discharge valve is open, allowing air and cold waterto be discharged rapidly. The period of waiting to starta process is reduced to minutes – there is no air binding,water-logging or steamlocking to delay equipmentwarm up.Incoming steam causes the bimetal to deflect.This thermal pull of the bimetal element acts on the valvestem overcoming the steam pressure closing the valve.The ball valve is pulled tightly on toits seat preventing weepingand loss of live steam.The thermal pull increasesor decreases as a functionof temperature, in thesame relation as thetemperature and pressureof the saturated steam.The same element can beused for varying steampressures within widepressure ranges.Actual tests show that up to21/2 hours may be saved oneach “warm-up” becauseVelan Steam Traps have amuch greater ventingcapacity than other traps,due to large orifice.TRAPPINGDRAININGI STEPII STEPActing ValveAreaThermalPullPressureActionOn FullValve AreaUnbalanced PressureClosing ForceOpening ForcePressureActionOn OrificeDifferentialPressurePressureBalancedValve ClosedPressure OpensValve CompletelyActing On FullValve AreaPressure CracksValve andReleases FlowTWO STEP DRAINAGECHECK VALVE ACTIONWhen steam condenses into water, the thermal pull of thebimetal is gradually reduced until the line pressure on thevalve releases it from the valve seat and allows condensate to be discharged.This is the first step in thesmooth and quick openingof the valve, without noiseor violent action. Whenthe flow is released, theunbalanced pressure actson the full valve area.The force to overcome thethermal pull increases andopens the orifice to fullcapacity.Back pressure in the discharge pipe, a sudden drop insteam pressure a rapid fluctuation or discharging tooverhead lines causes back flow of condensate.To prevent this possibleback flow or condensateentering the equipment notin service, separate checkvalves have to be installedas near to the trap aspossible. In Velan SteamTraps the discharge valvein the trap acts as a checkvalve providing full backflow control.4
HOW IT WORKSTHE 4 PURPOSE VALVE AND ITS FUNCTION IN THE VELANPISTON OPERATED & THE MONOVALVE FLOAT BIMETALLICSTEAM TRAPPISTON OPERATEDPilot ValveCool air and condensatefrom the system isdischarged through thelarge main valve orificeactuated by the piston,which is held open byit’s own weight whencold. As line pressurebuilds up pressure above thepiston keeps the valve openat maximum discharge untilthe system is completelypurged of air and condensate.MONOVALVE FLOAT BIMETALLICFAST WARM UPClearing air and moisture from a coldsystem rapidly reduces warm-uptime and increases production.Other float traps must havea separate air ventingfacility while theVelan MFT utilizesthe large mainorifice for the fastestwarm-up time of anycomparable sizedfloat trap.Piston Main ValvePOSITIVE TRAPPINGIncoming steamcontacting the bimetalelement closes the pilotvalve, thereby reducingthe pressure acting onthe piston. Line pressurebelow the main valvecloses it tightly butsmoothly, due to thepartial pressureremaining in the pistonchamber.When condensate is discharged, the floatmechanism rests on the trap body.The bimetal element alone,closes the valve with thermalpower developed by incomingsteam. The bimetal elementis a function of thesaturated steamcurve, thereforeoperates efficientlyat any pressurewithin it’s range.CONDENSATE DISCHARGEIf condensate builds up in the trap body, the float becomesbuoyant, and opens the valve to unrestrictedflow. Condensate even at steamtemperature is discharged atthe same rate as it reachesthe trap. No air bindingor water loggingirrespective ofadverse conditions.The trap drains bygravity and willnot freeze.When condensate andair collect in the trapbody, the bimetal forceis reduced, line pressureopens the pilot valve,pressurizing the pistonchamber and forcing themain valve open againstline pressure by virtueof the greater pistonarea.CHECK VALVE ACTIONExcess back pressure, adrop in line pressure, ordischarging to overheadreturn lines, can cause areverse flow ofcondensate through thetrap. Normally separatecheck valves are requiredto prevent this occurrence.The Velan type SP main dischargevalve also works as a temporarypiston check valve and preventsback flow.When pressure is off, equipment discharging to acommon return, or where condensateis returned to overhead lines,a check valve is required toprevent reverse flow throughthe trap. The free-floatingMFT mechanismshuts immediatelythe reverse flowand no additionaldevice is required.5
VELAN FORGED UNIVERSAL BIMETALLIC STEAM TRAPSType TS, TSF & SF with Cage Unit, Air Vent, Check Valve, Strainer & OptionalTemperature ControllerEBCIType TSDJKHA FLGTYPE TS, TSF & SF DESIGN FEATURES Forged valve body and cover (A, B)offer the advantages of high strength,structural integrity and reliability that makeit an ideal choice for steam service. Stainless Steel Trim Cage Unit (K, C, J, G, I)The advanced cage unit designin Velan Steam Traps combinesa bimetal element, hardenedRc 58 min. ball valve and a Stellitedseat area all in one factory-testedassembly. Replacement of all wearingparts can be achieved in less than twominutes, with the trap remaining in-line. pressures from 1 psi to maximum, without orificechange or adjustment.Stellited SeatsAll Velan valve seats areStellite faced to increase theirresistance to the high degreeof wear through velocityof flow, dirt and scale. Integral strainer (F)Stainless steel screens are integral in all threemodels to protect the trap operating mechanismfrom damage by dirt or scale. No extra fittings orinstallation costs are required. Free strainer areaminimum 5 to 1. Perforation is 0.031" (0.8 mm). Universal operationThe individual segments of the bimetallic elementact consecutively, developing forces in closerelation to the saturated steam curve. Thispermits sensitive, efficient trap operation at all6 Silent operation – no violent line shocks. Positive closingEvery Velan steam trap closes tightly on saturatedsteam temperature. Positive closing for longperiods on dry superheated steam has enormousadvantages in power plant and marine service. All-position operation simplifies piping layout. FreezeproofVelan traps do not require a reservoir of primingwater in the body to operate. When installedvertically with inlet on top, they drain completelywhen cold, and are freezeproof without insulation. Positive condensate drainage for process work. Optional Temperature controller on SFAn ingenious device that allowsadjustment of factory setting underfull steam pressure. Condensatedischarge temperature can beincreased or decreased to meetthe specific requirements of anyprocess application. Up to 30% ofenergy can be saved by extractingthe sensible heat of steam. Other options include:NPT blow down plug, Piping KingUnits complete with valving.
VELAN FORGED UNIVERSAL BIMETALLIC STEAM TRAPSSTANDARD MATERIALSBCDEFGHIJKLForged carbon steel A105Body[C. Max. 0.25]Forged stainless steel F316(1)CoverSame as body materialBimetal element Truflex GB-14Stainless steel withCover gasketgraphite fillerCover bolt (2)Chrome moly. alloyStrainerStainless steelStem & ballSS, ball valve 58 Rc min.Cage unitStainless steel spiral woundgasketwith graphite fillerSelf-lockStainless steeladjusting nutFixing screwStainless steelBimetal holder Stainless steelPlug: 3/8 - NPT Carbon steel Socketweld FlangedSERVICE:2 MINUTESTO REPLACECAGE UNIT21422000 TS & TSFSteam tracingor instrumentcabinet serviceetc.TSF & SFStorage tankheating,sterilizers,cookers, dry kilns,water heaters,greenhouse coils,fuel oil heaters,drip legs, drumdryers, platenpresses, tiremoulds etc.1000200050SF10000 2020 S1 0T0/3502S50 T4860SFFTS1004510060AADIMENSIONS & WEIGHTS1/210 151251/23/4TSF15 201/23/4SF15 20(1) SF 300/600 FLG:0.50.1B3/83/4201259 1/8AFace to FaceSCR/SWBW41010225441010225443/8103/81112646 1/8121/8156308in (232 mm). (2) SF720020015105027100600Differential Pressure psiENGINEERING DATATYPETSTSFSFSIZE300FTSSFHigh or low pressuredrips, plating tank,vacuum pans,evaporators,pipe coils,bleach tanks etc.in/mm500400040SFS500CTYPE030/50F1Clearance for Strainer Removal:TS 4 1/8 in (105 mm) min.TSF 4 1/2 in (114 mm) min.SF 6 in (152 mm) min.TS3.5 6 1) Type TS only. (2) B7 (A105), B8M2 (F316) 0.035 0.0695000kg/hAMATERIALSCAPACITYbarCapacity lb/hPARTThe performance graphindicates the continuousdischarge capacitiesof condensate per hourat various pressuredifferentials across the trap.PRESSUREMAX.MAX.RANGE MATERIAL TEMP. ORIFICE CAPACITYpsi/bar F/ Clb/h 501,4774,5002,0453,1001,4092,6001,182(1) Also available in: F316, Max. temp. 1,000 F (537 C).(2) Permissible, but not recommended for prolongeduse above 800 F (426 C).BCCenter to Center toBottomTopFLGSCR/SW76/82 7/8415222732613 1/84.25152257927 3/813 1/2818725893.68 1/8(1)21/843/413206541216300/600 FLG: 23 lb (10.4 9.5
VELAN UNIVERSAL BIMETALLIC STEAM TRAPSType SSF with Air Vent, Check Valve, Strainer & Optional Temperature ControllerTo Service Large Volume Process ApplicationsEBFDType SSFJL GKC NA IHTYPE SSF DESIGN FEATURES Universal operationThe individual segments of the bimetallic elementact consecutively, developing forces in closerelation to the saturated steam curve. This permitssensitive, efficient trap operation at all pressuresfrom 1 psi to maximum, without orifice change oradjustment. An ideal feature for "complete trapstandardization". Easy internal maintenanceThe removal of the body cover provides easyaccess to the bimetallic element and seat.The removal of the strainer cover permits quickand easy removal of the strainer. Automatic air venting - good discharge capacityAir and cold condensate is discharged througha full orifice efficiently ensuring fast warm-upof equipment. Valve seats StellitedAll Velan valve seats areStellite faced to increase theirresistance to the high degreeof wear through velocity offlow, dirt and scale. Integral strainerAn integral stainless steel strainer protects thetrap operating mechanism from damage by dirt orscale. No extra fittings or installation costs arerequired. Free strainer area minimum 5 to 1.Perforation is 0.031” (0.8 mm).8 Positive closingEvery Velan trap closes tightly on saturated steamtemperature. Positive closing for long periods ondry superheated steam has enormous advantagesin power plant and marine service. All-position installation simplifies piping layout. Silent operation – no violent line shocks. FreezeproofVelan traps do not require a reservoir of primingwater in the body to operate. When installedvertically with inlet on top, they drain completelywhen cold, and are freezeproof without insulation. Positive condensate drainage for process work. Silent operation – no violent line shocks. Optional Temperature controllerAn ingenious device that can beadapted to most Velan modelspermitted adjustment of factorysetting under full steam pressure.Condensate dischargetemperature can be increased ordecreased to meet the specificrequirements of any processapplication. Up to 30% of energycan be saved by extracting thesensible heat of steam. Optional Extras include:Thermometer, strainer blowdownvalve and Piping King Unitscomplete with valving.
VELAN UNIVERSAL BIMETALLIC STEAM TRAPSSTANDARD MATERIALSCAPACITYPARTMATERIALSABodyCast carbon steel WCB[C. Max. 0.25 ]BCoverCarbon steelCBimetal elementTruflex GB-14DCover gasketStainless steel spiral woundwith graphite filler7000The performance graph indicates the continuous discharge capacities of condensate perhour at various pressure differentials across the trap.bar13471421423000ECover studAlloy steel6000FCover nutCarbon steel5000GStrainerStainless steelHStem & ballSS, ball valve 58 RcISeatSS hardfaced Stellite 6JStrainer covergasketStainless steel spiral woundwith graphite fillerKAdjustingnut & locknutStainless steelLStrainer blowdown plugCarbon steelSSF1SS25F20020004000Stainless steel1500004SF3000F600kg/hSSSCapacity lb/hFixing screwN & washer210002000SSF APPLICATIONS For draining: oil storage tank coils,acid stills, purifiers, feed waterheaters, flush tanks, separators,vacuum pans, heat exchangers,high pressure process equipment,high pressure main lines andgeneral industrial service inmedium to high pressure/temperature applications withhigh condensate discharge rates.Widely used in Power, Petroleumand Chemical Plants, Marineservice and Steel Industries tomeet safety al Pressure psiENGINEERING DATATypeSSFTYPESSF-125SSF-200SSF-400CONNECTIONS: 455500100SSF-600 Socketweld FlangedPRESSUREMAX.MAX.RANGE MATERIAL TEMP. ORIFICE CAPACITYpsi/bar F/ C in/mm lb/h ,4095,2002,360(1) Permissible, but not recommended forprolonged use above 800 F (426 C).DIMENSIONS & 00SSF-600250AClearance for Strainer Removal:9 in (229 mm) min.9AFace to FaceSCR/SW BW FLG112791743214 1/4362BCWeightCenter to Center tolb/kgBottomTopSCR/SW BW FLG5 3/81373 1/289301433154018
VELAN FORGED HP/HT STEAM TRAPSType N for High Pressure/High Temperature ServiceComplete with Air Vent, Check Valve and StrainerCNEFBNCBEKKDDGHHGAALJMIILMType N675Type N2500 TYPE N DESIGN FEATURES The only positive closing steam trap onsuperheated steamThe bimetallic element is a function of the saturated steam curve (pages 2 & 3) and it’s sensitivity tothe temperature change assures an immediatereaction to both steam and condensate for theentire pressure range. At saturated temperaturethe valve is closed. Superheated steam increasesthe thermal pull of the bimetallic element, closingthe valve even tighter. See page 2 for details. Easy Access to all the internal operating partswhen the body cover is removed. Forged valve body and cover (A, B)offer the advantages of high strength, structuralintegrity and reliability that make it an ideal choicefor steam service. Gaskets (D, J)are spiral wound, stainless steel with graphite. Trim Positive condensate drainage.Integral strainer (G)Stainless steel screens are integral to protect thetrap operating mechanism from damage by dirtor scale. No extra fittings or installation costs arerequired. Free strainer area minimum 5 to 1.Perforation is 0.031” (0.8 mm). Universal operation (C)The individual segments of the bimetallic elementact consecutively, developing forces in closerelation to the saturated steam curve. This permitssensitive, efficient trap operation at all pressuresfrom 1 psi to maximum, without orifice change oradjustment. An ideal feature for "complete trapstandardization". All-position installation simplifies piping layout.Can be installed vertically or horizontally.Both plugs can be replaced with valves.Can be adjusted to suit plant requirements. Other options include:NPT blow down plug, strainer blowdown valveand Piping King Unit with all valving. is stainless steel with ball 58 Rc min.Welded-in seats are Stellited (I)to increase their resistance to highpressure/temperature applicationsand wear through velocityof flow, dirt and scale.N150/300 has screwed seat.APPLICATIONSType N steam traps resolve all problems with highpressure steam trapping on superheated steam linesin thermal power plants or aboard ships. Over 1,100U.S. Navy ships have used Velan Steam Traps. Steam main drainage, Turbine drains, Desuperheater, High pressure processing, General high pressure/ temperature service.Freezeproof in vertical position - inlet on topwithout insulation – complete drainage when cold.10
VELAN FORGED HP/HT STEAM TRAPSType N Steam Traps also available as one unit Piping Kings with Velan Bonnetless Globe Valvesor Power Ball ValvesSTANDARD MATERIALSPARTMATERIALSABodyBCCoverBimetal elementDCover gasketEFGHICover stud(1)Cover nut(1)StrainerStem & ballSeatForged carbon steel A105[C. Max. 0.25]Forged alloy steel F22, F91Forged stainless steel F316Same as body materialTruflex GB-14Stainless steel spiral woundwith graphite fillerChrome moly. alloyCarbon steel, Stainless steelStainless steelStainless steel, ball 58 RcSS hardfaced with Stellite 6Stainless steel spiral woundwith graphite fillerN300N2500N2600K(1)CONNECTIONS:(1) Also available in: F22, max. temp. 1,050F (565 C)F316, max. temp. 1,000F (537 C).(2) Permissible, but not recommended forprolonged use above 800 F (426 C).N150–1500: Screwed Socketweld Buttweld FlangedN2500–N2600: Socketweld Buttweld FlangedDIMENSIONS & ace to FaceCenter to Center tolb/kgBottomTopSCR/SW(1) BW FLGSCR/SW* BW FLGSIZETYPEClearance for Strainer Removal: N150/300; 51/2 in(140 mm) min., N2500/2600; 15 in (381 mm) min.AN900N1500Plug gasketNN675TypeN2500AdjustingStainless steelnut & locknutStrainerCarbon steel orblowdown plug chrome moly. steelTest PlugCarbon steel or chrome moly. steelFixing screwStainless steel& washerB7/2H (A105), B8M/8M (F316),B16/Gr.4 (F22), Nimonic 80A (F91).LPRESSUREMAX.MAX.RANGE MATERIAL TEMP. ORIFICE CAPACITYpsi/bar F/ C in/mm lb/h 4.5-1795932,227TYPEN150JMENGINEERING /4 111/4337 28625141/21152411261237171251025416406151/23942 5/86781/82068036833810548(1) Screwed connection not available for N2500/N2600.ACAPACITYThe performance graphs indicate the continuous discharge capacities of condensate per hour at various pressure differentials across the trap.bar0.035 0.0690.693.5 6 102134.542 64 105 0005010/20090N0/025Nkg/hCapacity lb/h567N5000026500400NCapacity 5001000200027100050030001000Differential Pressure psiDifferential Pressure psi1120003000
VELAN HERMETICALLY SEALED STEAM TRAPType Q250 Stainless Steel Steam Traps for All Position Installationwith Air Vent, Check Valve & Self-Aligning Precision Ball ValveGCHAFDBEIType Q250DESIGN FEATURES Hermetically sealed bodySeal welded body contains all operating parts. Positive closingThe bimetallic element is a function of thesaturated steam curve (pages 2 & 3) and it’ssensitivity to the temperature change assures animmediate reaction to both steam and condensatefor the entire pressure range. At saturatedtemperature the valve is closed. All-position installationSimplifies piping layout for easy plantstandardization. Self-aligning precision ball valveSingle free-floating stainless steelhardened Rc 58 min. ball valve. Valve seats StellitedAll V
reacquired the Velan universal steam trap line produced for 15 years by Plenty Steam Products. This comprehensive range of steam traps is based on a unique design that was developed and patented by A.K. Velan, President and CEO of Velan Inc., and is now copied by major steam trap manufacturers. Once again, you can trust Velan to supply high .
17 Table 3. Compressed Water and Superheated Steam (continued) 0.01 MPa (ts 45.806 C) 0.02 MPa (t s 60.058 C) 0.03 MPa (t s 69.095 C) v ρh s t, C v h s t, C v ρ h s 26 446. 0.037 814 3076.7 9.2827 300 13 220. 0.075 645 3076.5 8.9625 300 8811.0 0.113 49 File Size: 630KBPage Count: 60Explore furtherCalculator: Superheated Steam Table TLV - A Steam .www.tlv.comSuperheated Steam Tables - Gilson Enggilsoneng.comCalculator: Superheated Steam Table TLV - A Steam .www.tlv.comCalculator: Superheated Steam Table TLV - A Steam .www.tlv.comSteam Table Calculator Superheated Steam Region Spirax .www.spiraxsarco.comRecommended to you b
TRAP expression and function in a TRAP-overexpressing MDA-MB-231 cancer cell line. MK-0822 treatment af-fected cleaving patterns and secretion of TRAP-isoforms, but had no effect on activity of TRAP, TRAP isoform distribution and migration of the cancer cells. Results TRAP-overexpressing breast cancer cells generate elevated amounts of TRAP 5b
improvement, yearly steam loss reductions and sustained monetary savings. Wireless, Labor-free, Instant Notification of Steam Trap Failure! Instant notification of steam trap failure and a sustained (24/7) monitoring process. Company-wide awareness and measurement of steam
especially when introducing a trap to a new location. e. Do not approach the trap in daylight hours. f. Check the trap daily. g. Remove trapped Indian mynas after dusk and reset the trap ready for the next day. h. A call bird left in the trap can help to attract more birds. Call birds cannot be left in the trap for longer than 24 hours.
Your trap routine should originate at memory location x3300. Be sure to add your trap to the Trap Vector Table as Trap x26. (You may do this manually in the LC-3 simulator.) Even though your trap code is in user space, they code will be run in supervisor mode because it was accessed via the Trap Vector Table.
Page 2 June 2015 Large Steam Power Plants Siemens Steam Turbines for coal-fired Steam Power Plants Power output 120 MW to 700 MW Max. steam parameters Main steam / Hot reheat steam 177 bar / 600 ºC / 620 ºC 2,570 psi / 1,110 ºF / 1,150 ºF SST-5000 series for coal-fired Steam Power Plants
2. Use the steam control to select the amount of steam you want ( m low, l medium, h high). 3.2. Squeeze the steam button to produce steam, release it to stop. NOTE: When you first start your steam station and pull the trigger for steam ironing, there will be a delay as your steam station pumps water from the reservoir to prime the system.
Am I My Brother's Keeper? is a project by British artist Kate Daudy, who has transformed a large UNHCR tent; previously home to a Syrian refugee family in Jordan’s Za’atari camp into a participatory art installation focussing on the concepts of home and identity. During the year and a half she spent researching the project, Daudy visited refugee camps in Jordan. There and across Europe and .
