Specifications | Gas Shutoff Valves
Table 1. Valve Size Specifications
Max. Diff. Back Pressure psi (mbar)
Close-off Pressure psi (mbar)
Number of Test Points Inlet Outlet
Max. Oper. Pressure psi (mbar)
Body Materials
Cv
Size
Valve Type
½ " NPT ¾ " NPT 1" NPT 1 ½ " NPT
20 (1379) 75 (5171) 20 (1379) 75 (5171) 20 (1379) 75 (5171) 20 (1379) 75 (5171) 15 (1034) 75 (5171) 10 (689) 25 (1724) 10 (689) 25 (1724)
2.5 (172) 2.5 (172) 2.5 (172) 2.5 (172) 2.5 (172) 2.5 (172) 2.5 (172)
2 2 2 2 2
2 2 2 2 2
6.5 11.7 17.0
Aluminum
Single
40.5 60.7
2" NPT
2 ½ " NPT 3" NPT 1 ½ " NPT
1 1
1 1
89
Cast Iron
113.3 33.2 40.5 73.2
20 (1379) 30 (2068) 2.5 (172) 15 (1034) 30 (2068) 2.5 (172)
One inlet, one outlet and one between valves
Aluminum
2" NPT
Double
2 ½ " Flanged 3" Flanged 4" Flanged 6" Flanged
10 (689) 75 (5171) 10 (689) 75 (5171)
4 (276) 4 (276)
One inlet, one outlet and one between valves
Aluminum
110.5 171.6 324.9
10 (689) 30 (2068) 4 (276) 10 (689) 30 (2068) 4 (276)
Notes: The close-off pressure is the maximum pressure the valve can close against. This pressure will need to be relieved below the maximum operating pressure for the valve to open. The maximum operating pressure is the maximum inlet pressure the valve can open against. The maximum differential back pressure is the maximum allowable downstream pressure increase above the inlet pressure. Example: For a 1", if the inlet pressure is 10 psi the outlet pressure can't be higher than 12.5 psi.
WIRING
NO POC or AUX SWITCH
POC ONLY
POC + AUX SWITCH
Notes: Installations are to be completed by qualified personnel only. Wiring must meet all relevant electrical codes. Flexible conduit must be used when conduit routing is connected. The GND terminal must be connected to electrical ground. This is located above the wiring terminals. If water is introduced into the actuator housing and prevents it from operating properly, the warranty will be voided.
Bulletin 1599 page 3
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