1.1 This specification covers requirements and test methods for excess flow valves for use in thermoplastic natural gas piping systems. However, it is expected that excess flow valves manufactured to the requirements of this specification may also be used in other natural gas piping systems.
Product Details
- Published:
- 08/01/2017
- Number of Pages:
- 6
- File Size:
- 1 file , 110 KB