Siemens VGD20.253U - Ordering Information

TechnicalInstructions VGDSeriesDoubleValves
DocumentNumberCC1N7631us 
November08,2017
Page4 SiemensAGBuildingTechnologiesDivision

Ordering
information
Gasvalvesandactuatorsareorderedseparately.ForadditionalSKPxx.xxxUactuator
information,seethefollowingtechnicalinstructions:
SKP15.xxxU 155‐751P25
SKP25.xxxU 155‐752P25
SKP55.xxxU 155‐753P25
SKP75.xxxU 155‐754P25
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
NOTE:
TheSKPxx.xxxUactuatorshaveanoperatingtemperaturerangeof14°Fto140°F
(‐10°Cto60°C)!

Table2.Productnumbers
Product
number
Size Maximum
operating
pressure
psi
Close‐off
pressure
psi
Capacity
CFH
Naturalgas
at
P=1"W.C.
Numberof test
points,
1/4"NPT
Valvebody
material
Inlet Outlet
VGD20.253U*) 1" 20 30 600
Two¼‐inchand
one1‐inchport
betweenvalves
Aluminum
VGD20.323U*) 1¼" 20 30 1200 Aluminum
VGD20.403U*) 1½" 20 30 1,850 Aluminum
VGD20.503U*) 2" 20 30 2,300 Aluminum

VGD40.065U 2½"NPT 10 75 3,880 1 1 Aluminum
VGD40.080U 3"NPT 10 75 5,370 1 1 Aluminum
VGD40.100U** 4"flanged 10 30 9,680 1 1 Aluminum
VGD40.150U** 6"flanged 10 30 17,490 1 1 Aluminum
*)VGD20.xxxUdoublevalvesrequire2AGFxx.xxUthreadedflangesforinstallation
**)VGD40.1x0Uflangedvalvesmustbeinstalledusingnon‐metallicflangegaskets.Gasketmaterialmustbechemically
compatiblewiththefuelgasbeingusedintheapplicationandmustbesofterthanthealuminumflangesealingsurface.
Acceptablegasket
materialsincludebutarenotlimitedto:rubber,pa p er,andplastic.Observeflangebolttorque
specificationsasstatedintheVGD40 installationinstructions.AlsorefertoANSI/ASMEB16.24.
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