Wash. Admin. Code § 51-52-21409
Table 409.1.1
Natural Gas Valve Standards
| Valve Standards | Appliance Shutoff Valve ApplicationUp 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. |
[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-23-105, § 51-52-21409, filed 11/15/23, effective 3/16/24; WSR 23-02-055, 23-12-106, and 23-20-025, § 51-52-21409, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24.]