PDFWAC 51-52-21409
Section 409 (IFGC)—Shutoff valves.
Table 409.1.1
Natural Gas Valve Standards
Valve Standards | Appliance Shutoff Valve Application Up to 1/2 psig Pressure | Other Valve Applications | |||
Up to 1/2 psig Pressure | Up to 2 psig Pressure | Up to 5 psig Pressure | Up to 125 psig Pressure | ||
ANSI Z21.15/CGA 9.1 | X | -- | -- | -- | -- |
ASME B16.44 | X | X | Xa | Xb | -- |
ASME B16.33 | X | X | X | X | X |
ASME B16.38 | -- | X | X | X | X |
For SI: 1 pound per square inch gauge = 6.895 cPsa | |
a. | If labeled 2G. |
b. | If labeled 5G. |