MSS SP 131
Metallic Manually Operated Gas Distribution Valves
|Publication Date:||1 January 2017|
This Standard Practice covers Metallic Gas Distribution Valves designed for operation at any pressure from 0 psig to a maximum of 285 psig, at operating temperatures ranging from -20 °F to 150 °F, and sizes from NPS 1/2 to NPS 12.
To provide a Standard Practice for metallic valves used in fuel gas piping systems which are manually operated both above and below ground.