vgd series - scc inc siemens combustion controls elk … double gas valve bodies n7631us.… ·...

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

TechnicalInstructions VGDSeriesDoubleValvesDocumentNumberCC1N7631us November08,2017

Page2 SiemensAGBuildingTechnologiesDivision

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).

VGDSeriesDoubleValves TechnicalInstructions DocumentNumberCC1N7631us November08,2017

SiemensAGBuildingTechnologiesDivision Page3

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.



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.



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)



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

7631z01us/0815

Operatingpressure SeeTypesummary

Typesofgases Suitablenaturalgases,propane,butaneandairFormoreinformationseeUse.

Strainer Builtin,meshsize0.9mm



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.



Operation,continued

7631z53us/1215

Figure2.SecondviewofVGD40.xxxUflangemodelsVGD40.xxxUdoublevalvesconsistoftwovalvesinseries.Eachvalvehasadoubleseattoachievehighflow(seeFigure2).Closingsprings:Eachdoubleseatusesonepairofsprings.Thespringforcesactseparatelyasclosingforcesontheindividualvalveseats.



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.



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)



Dimensions,continuedDimensionsinInches(mm)VGD40.065U/VGD40.080U

a)

a)

GS

F

A

7631m21us/1215

a)Baseplate



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



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)



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

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