VGD Series - SCC Inc Siemens Combustion Controls Elk … Double Gas Valve Bodies n7631us.… ·...
Transcript of VGD Series - SCC Inc Siemens Combustion Controls Elk … Double Gas Valve Bodies n7631us.… ·...
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SiemensAGBuildingTechnologiesDivision
VGDSeries
TechnicalInstructionsDocumentNo.7631
VGDxx.xxxUNovember08,2017
VGDxx.xxxUGasValvesforusewithSKPxx.xxxUelectrohydraulicactuators
VGD20.xxxU VGD40.xxxU ISO9001and14000REGISTEREDFIRM
OnlywithseriesSKPxx.xxxUxactuators
Description ThenormallyclosedVGDxx.xxxUseriesofmodulardoublebodygasvalvescombinewithSKPxx.xxxUserieselectrohydraulicactuatorstoprovidesafetyshutoff,gaspressureregulationand/orairgasratiocontrolforcommercialorindustrialgasburners.
Table1.VGDxx.xxxUmodelnumbers
ModelNumbers Bodystyle ConnectionVGD20.253U Double NPTthreadVGD20.323U Double NPTthreadVGD20.403U Double NPTthreadVGD20.503U Double NPTthreadVGD40.065U Double NPTthreadVGD40.080U Double NPTthreadVGD40.100U Double ANSIflangeVGD40.150U Double ANSIflange
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TechnicalInstructions VGDSeriesDoubleValvesDocumentNumberCC1N7631us November08,2017
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FeaturesAllModels
ULlisted,FMapproved,CSAcertified,IRIapprovable,ISO9001and14000certified.CE,Australianapprovedversionsavailable
inchNPTpressuretapsontheinletandoutletandbetweenmainvalves(seeTable2fordetails)
Stainlesssteelmeshinletfilterprotectsthevalveseat(s)aswellasdownstreamcomponents
Dualstemguidesensureprecisediscalignmentandtightshutoff ValvesinconnectionwithSKPxx.xxxUactuatorsopenslowlyandcloserapidly
VGD20.xxxUmodels CompactVGD20.xxxUdoublevalvebodiesconsistof2safetyshutoffvalvesinseries.Thefirst(inlet)valvehasaflatvalvediscapplicableforsafetyshutofffunctiononly.Thesecond(outlet)valvehasacontouredvalvediscforusewithpressureregulatingactuators(SKP2x.xxxU,SKP5x.xxxU,SKP7x.xxxU)
A1inchNPTventconnectionbetweenthevalves EachVGD20.xxxUdoublevalverequires2threadedmountingflanges(AGFxx.xxU).Each
flangeincludesthenecessaryinstallationhardware(bolts,nutsandOring).EachmountingflangehasainchNPTpressuretap.Theflangescanbepremountedontothepipe,andthenboltedontotheVGD20.xxxUgasvalvebody.Thisfeatureeliminatestheuseofpipeunionsandpermitsthegasvalveassemblytobeeasilyremovedfromagastrain
Connectingpatternofthe1...2inchAGFxx.xxUflangesareidentical.ThisspacepermitsanyAGFxx.xxUflangetobemountedtoanyVGD20.xxxUvalvebody
NOTE:VGD20.xxxUvalvesandAGFxx.xxUflangesmustbeorderedasseparateitems(seeTables2and3).
VGD40.xxxUmodels CompactVGD40.xxxUdoublevalvebodiesconsistof2safetyshutoffvalvesinseries Eachindividualsafetyshutoffvalvehasdoubleseatstoachievehighflow Patentedseatconstructionwithindividualclosingspringforeachseattoassurereliable
shutoffandhighcloseoffpressurerating Fullportventlineconnectionplatesareavailable
NOTE:VGD40.xxxUvalvesandAGA40.xxxxUventconnectionplatesmustbeorderedas
separateitems(seeTables2and3).
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Application AllVGDxx.xxxUvalvescanbecombinedwithanySKPxx.xxxUseriesactuator.Theactuatorcanbemountedwhilethevalveisinstalledandunderpressure.SKPxx.xxxUregulatingactuatorsareapplicableforbothlowandhighsupplygaspressureapplications,eliminatingexcessiveregulatorinventories.Maximumpressureratingsvarywithvalvesize(seeTable2).AllVGDxx.xxxUvalvesperformthesefunctionsincombinationwitheachofthefollowingactuators:SKP15.xxxU SafetyshutoffSKP25.xxxU SafetyshutoffandconstantpressureregulationorzerogovernorSKP55.xxxU Safetyshutoff,pressureregulationanddifferentialpressureairgasratio
controlSKP75.xxxU Safetyshutoff,pressureregulationandadjustableair/gasratiocontrolSincemorethanonefunctioncanbeperformedbyasinglevalve,fewercomponentsandfittingsarerequiredsignificantlyreducingboththesizeandweightofthegastrain.Inaddition,smallerdiametergasvalvescanbeused.Fordetailsonvalvesizingseetheflowchart(figure3).
CAUTION: DonotoversizevalvesequippedwitharegulatingSKP2x.xxxU/SKP5x.xxxU/SKP7x.xxxUactuator.Oversizingmaylimitturndownandcouldcauseoscillations.
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TechnicalInstructions VGDSeriesDoubleValvesDocumentNumberCC1N7631us November08,2017
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Orderinginformation
Gasvalvesandactuatorsareorderedseparately.ForadditionalSKPxx.xxxUactuatorinformation,seethefollowingtechnicalinstructions:SKP15.xxxU 155751P25SKP25.xxxU 155752P25SKP55.xxxU 155753P25SKP75.xxxU 155754P25
NOTE:TheSKPxx.xxxUactuatorshaveanoperatingtemperaturerangeof14Fto140F(10Cto60C)!
Table2.Productnumbers
Product number
Size Maximumoperatingpressure
psi
Closeoffpressure
psi
CapacityCFH
Naturalgasat
P=1"W.C.
Numberof testpoints, 1/4"NPT
Valvebodymaterial
Inlet Outlet
VGD20.253U*) 1" 20 30 600 Twoinchandone1inchportbetweenvalves
AluminumVGD20.323U*) 1" 20 30 1200 AluminumVGD20.403U*) 1" 20 30 1,850 AluminumVGD20.503U*) 2" 20 30 2,300 Aluminum VGD40.065U 2"NPT 10 75 3,880 1 1 AluminumVGD40.080U 3"NPT 10 75 5,370 1 1 AluminumVGD40.100U** 4"flanged 10 30 9,680 1 1 AluminumVGD40.150U** 6"flanged 10 30 17,490 1 1 Aluminum
*)VGD20.xxxUdoublevalvesrequire2AGFxx.xxUthreadedflangesforinstallation**)VGD40.1x0Uflangedvalvesmustbeinstalledusingnonmetallicflangegaskets.Gasketmaterialmustbechemicallycompatiblewiththefuelgasbeingusedintheapplicationandmustbesofterthanthealuminumflangesealingsurface.Acceptablegasketmaterialsincludebutarenotlimitedto:rubber,paper,andplastic.ObserveflangebolttorquespecificationsasstatedintheVGD40installationinstructions.AlsorefertoANSI/ASMEB16.24.
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Accessories
Table3.AccessoriesPartNumber Description Notes
AGF10.25U Single1"connectingflangewith"portforVGD20.xxxU 2requiredpervalve.OrderseparatelyAGF10.32U Single1"connectingflangewith"portforVGD20.xxxU
AGF10.40U Single1"connectingflangewith"portforVGD20.xxxUAGF10.50U Single2"connectingflangewith"portforVGD20.xxxU AGA40.4050U 1NPTventconnectionplateforVGD40.xxxU Eachventconnection
includesNPTtestport,seeMountinginstructionM7631.3(7431902780)
AGA40.6580U 1NPTventconnectionplateforVGD40.xxxUAGA40.0100U 2NPTventconnectionplateforVGD40.xxxUAGA40.0150U 2NPTventconnectionplateforVGD40.xxxU
AGA61
ManualadjustingthrottleattachmentAGA61permitsVGDxx.xxxUseriesvalvestobeusedasadjustablelimitingorificevalves.Onceadjusted,theAGA61hasaprovisiontobesealedfromtampering.
AGA66
SealinggaskettoprovideNEMA3,NEMA3R,andNEMA4protection.GasketkittomountSKPxx.xxxUPlacebetweenactuatorSKPxx.xxxUandvalveVGDxx.xxxUIncreasesdegreeofprotectionfromIP54toIP65RefertoMountingInstructionM7643.2(7431904210)
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SpecificationsApprovals
Agencyapprovals/standards UL/429,FM/7400,CSA/ANSIZ21.21/CSA6.5C/IIRIapprovableAgencymarksapplyonlyforVGDxx.xxxUseriesgasvalvebodiesassembledwithSKPxx.xxxUactuators.
Operatingenvironment
Maximumoperatingpressure SeeTable2Maximumbackpressure(differential) VGD20.xxxU:2psi(150mbar) VGD40.xxxU:4psi(300mbar)Closeoffpressure SeeTable2Permissiblegastemperature 14Fto140F(10Cto60C)Permissibleoperatingtemperature 14Fto140F(10Cto60C)
Use SiemensgasvalvesareinaccordancewithUL429.Thevalveisusedas: Safetyshutoffvalve(inconnectionwithSKP15.xxxU) Controlvalvewithsafetyshutofffunction(inconnectionwithSKP25.xxxU,SKP5x.xxxUor
SKP7x.xxxU)
Perm.mountingposition
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Operatingpressure SeeTypesummary
Typesofgases Suitablenaturalgases,propane,butaneandairFormoreinformationseeUse.
Strainer Builtin,meshsize0.9mm
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SpecificationsPhysicalcharacteristics
Bodymaterials SeeTable2Weight SeeTables4
Connections Pipeconnections NPTthreadsorANSIclass150flanges(seeTable2)
Pressureandventtaps SeeTables2and3
Operation AllVGDxx.xxxUgasvalvesarenormallyclosed,twowayvalves.Thevalveshaveastandard,integral,stainlesssteelmeshfilter(0.9mm)intheinlettoprotectthedownstreamcomponentsagainstcontamination.AllvalveshaveNPTportsforpressuretestconnection.AfullsizeventconnectionplateisavailableasanaccessoryforVGD40.xxxUvalves.SeeTable2and3fordetailsonportsandventconnectionplates.
AGF10... AGF10...
7631z50us/0815
Figure1.SectionalviewofVGD20.xxxUVGD20.xxxUdoublevalvesconsistoftwovalvesinseries.Thefirst(inlet)valvehasaflatvalvediscsuitableforthesafetyshutofffunctiononly.Thesecond(outlet)valvehasacontouredvalvediscforstableregulatingcontrolandsmoothreleaseofgas.
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Operation,continued
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Figure2.SecondviewofVGD40.xxxUflangemodelsVGD40.xxxUdoublevalvesconsistoftwovalvesinseries.Eachvalvehasadoubleseattoachievehighflow(seeFigure2).Closingsprings:Eachdoubleseatusesonepairofsprings.Thespringforcesactseparatelyasclosingforcesontheindividualvalveseats.
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Gasflowcharts
100 2 3 4 5 7 1000 2 3 4 5 7 10000 2 3 4 5 7 100000 2 3
7 100 2 3 4 5 7 1000 2 3 4 5 7 10000 2 3 4 5 7 100000 2
7 100 2 3 4 5 7 1000 2 3 4 5 7 10000 2 3 4 5 7 100000 2
100 2 3 4 5 7 1000 2 3 4 5 7 10000 2 3 4 5 7 100000 2 3
3 4 5 7 10 2 3 4 5 7 100 2 3 4 5 7 1000 2 3 4 5 7
cf/h Natural gas 0.641
cf/h Propane gas 1.522
cf/h Butane gas 2.003
cf/h Air 1.004
m3/h Air 1.004
Sp. Gr.
1,000700500400300
200
100
70504030
20
107543
2
10,70,50,40,3
0,2
1,000700500400300
200
100
70504030
20
107543
2
10,70,50,4
W.C. mbar
Pres
sure
dro
p
p
7631
t06u
s/12
15
VGD20...
VGD40...
Figure3.Sizingdoublevalves
Assumptions:1)Pressuredownstreamofvalveisatmospheric2)Maximumgastemperatureof140F3)Valveinfullyopenposition
NOTE:PressuredropistotaldropacrossbothvalveswhenusingaSKPx5.xxxUactuator,
withorwithoutanAGA66.
CAUTION:DonotoversizevalvesequippedwithregulatingactuatorsSKP2x.xxxU,SKP5x.xxxUorSKP7x.xxxU.Oversizingmaylimitturndownandcouldcauseoscillations.
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DimensionsDimensionsinInches(mm) VGD20.xxxU
AG
F10.
..
AGF10...
1/4" NPT
D
3-1/
8(8
0)
2-3/4(69)
2-1/2(63.5)
2-1/2(63.5)
3/4(19)
3/4
(19.
5)2-
7/16
(61)
4-1/
16(1
03)
1-1/
4(3
0)
Table4.VGD20.xxxUdimensionsininches(mm)with2flangesAGF10.xxUValvemodel NominalsizeD
inchLength(L)
inch(mm)
Weightpounds(Kg)
VGD20.xxxU 1 10.59+2x1.02(269+2x26)
7(3.2)
1 10.59+2x1.02(269+2x26)
7(3.2)
1 10.59+2x1.02(269+2x26)
7(3.2)
2 10.59+2x1.18(269+2x30)
7(3.15)
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Dimensions,continuedDimensionsinInches(mm)VGD40.065U/VGD40.080U
a)
a)
GS
F
A
7631m21us/1215
a)Baseplate
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Dimensions,continuedDimensionsinInches(mm)VGD40.100U/VGD40.150U
M
V
SG
A
F
a)
a)
7649
m05
us/0
815
Table5.VGD40.xxxUdimensionsininches(mm)Type A
inch(mm)
Binch(mm)
Cinch(mm)
Dinch(mm)
Einch(mm)
Finch(mm)
Ginch(mm)
Hinch(mm)
Iinch(mm)
JinchNPT
K(SW*)inch(mm)
L(d=)inch(mm)
M(d=)inch(mm)
Sinch(mm)
Tinch(mm)
Uinch(mm)
Vinch(mm)
VGD40.065U11.42(290)
8.54(217)
3.25(82.5)
4.63(117.5)
2.09(53.1)
1.46(37)
4.02(102)
6.14(156)
0.63(16)
2" 4(100)
5.5(139.7)
0.75(19)
1.77(45)
3.64(92.5)
0.80(20.4)
7.01(178)
VGD40.080U12.20(310)
9.39(238.5)
3.64(92.5)
5.18(131.5)
2.09(47)
0.79(20)
4.21(107)
6.30(160)
0.63(16)
3" 4.7(120)
6.0(152.4)
0.75(19)
1.2(30.5)
3.94(100)
0.88(22.4)
7.56(192)
VGD40.100U13.78(350)
10.52(267.3)
4.33(110)
5.70(144.8)
1.93(49)
1.95(49.5)
5.16(131)
7.56(192)
0.63(16)
7.5(190.5)
0.75(19)
2.83(72)
4.55(115.5)
0.87(22)
8.74(222)
VGD40.150U18.90(480)
13.29(337.5)
5.71(145)
7.40(188)
2.09(53)
2.30(58.5)
6.61(168)
10.31(262)
0.63(16)
9.5(241)
0.91(23)
3.92(99.5)
5.61(142.5)
0.90(22.9)
10.63(270)
*)SW=widthacrossflats
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Dimensions,continuedDimensionsinInches(mm) VGD40.xxxUvalvewithventconnectionplateOption: a)Baseplate b)VentconnectionplateAGA40.xxxxU(optional)tobeorderedseparately a)andb)areinterchangeable
2A
7631z49us/0815
Table6. VGD40.xxxUdimensionsininches(mm)withmountedventconnectingplate.Valvemodel N
inch(mm)
Oinch(mm)
Pinch(mm)
Qinch(mm)
Rinch(mm)
Weightpounds(kg)
VGD40.065U 7.13(181)
4.06(103)
5.34(135.6)
3.02(76.59)
1.46(37)
1.6(7)
VGD40.080U 7.28(185)
4.13(105)
5.49(139.5)
3.17(80.5)
0.79(20)
19(8)
VGD40.100U 8.54(210)
4.76(121)
6.26(159)
3.94(100)
1.95(49.5)
29(13)
VGD40.150U 11.30(287)
6.14(156)
7.80(198)
5.47(139)
2.28(58)
53(24)
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Dimensions,continued
Table 7. AGA40.xxxxU Models
Ventconnectionplate(optional)
1/4" NPT
7631
m18
us/1
215
VGD4
0.06
5U
VGD4
0.08
0U
VGD4
0.10
0U
VGD4
0.15
0U
Ventconnectionthread"Z"
AGA40.6580U 1"NPTAGA40.0100U 2"NPTAGA40.0150U 2"NPT
Informationinthispublicationisbasedoncurrentspecifications.Thecompanyreservestherighttomakechangesinspecificationsandmodelsasdesignimprovementsareintroduced.Otherproductorcompanynamesmentionedhereinmaybethetrademarksoftheirrespectiveowners.SiemensAGBuildingTechnologiesDivisionBerlinerRing2376437RastattGERMANY
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DocumentNo.CC1N7631usCountryofOrigin:DE