Siemens VGD20.253U - Specifications

TechnicalInstructions VGDSeriesDoubleValves
DocumentNumberCC1N7631us 
November08,2017
Page6 SiemensAGBuildingTechnologiesDivision
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Specifications
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Approvals
Agencyapprovals/standards UL/429,FM/7400,
CSA/ANSIZ21.21/CSA6.5C/I
IRIapprovable
AgencymarksapplyonlyforVGDxx.xxxUseries
gasvalvebodiesassembledwithSKPxx.xxxU
actuators.
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Operating
environment
Maximumoperatingpressure SeeTable2
Maximumbackpressure(differential) VGD20.xxxU:2psi(150mbar)
 VGD40.xxxU:4psi(300mbar)
Close‐offpressure SeeTable2
Permissiblegastemperature 14°Fto140°F(‐10°Cto60°C)
Permissibleoperatingtemperature 14°Fto140°F(‐10
°Cto60°C)
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Use
SiemensgasvalvesareinaccordancewithUL429. 
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Thevalveisusedas:
‐ Safetyshutoffvalve(inconnectionwithSKP15.xxxU)
‐ Controlvalvewithsafetyshutofffunction(inconnectionwithSKP25.xxxU,SKP5x.xxxUor
SKP7x.xxxU)
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Perm.mounting
position
7631z01us/0815
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Operatingpressure
SeeTypesummary
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Typesofgases
Suitablenaturalgases,propane,butaneandair
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FormoreinformationseeUse.
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Strainer
Built‐in,meshsize0.9mm
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