API - STD 641
Type Testing of Quarter-turn Valves for Fugitive Emissions
active, Most Current
| Organization: | API |
| Publication Date: | 1 October 2023 |
| Status: | active |
| Page Count: | 25 |
scope:
This standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarter-turn valves.
Valves larger than NPS 60 or valves greater than ASME B16.34 class 1500 are outside the scope of this standard. Valves with a pressure rating at ambient temperature less than 6.89 barg (100 psig) are outside the scope of this standard.
For all valves rated greater than or equal to 400 °C (750 °F), an additional high temperature test may be performed in accordance with Annex C or when specified by the purchaser.
Document History
STD 641
October 1, 2023
Type Testing of Quarter-turn Valves for Fugitive Emissions
This standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarter-turn valves.
Valves larger than NPS 60 or valves greater than ASME B16.34 class 1500...
October 1, 2016
Type Testing of Quarter-turn Valves for Fugitive Emissions
This standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarterturn valves. The type testing requirements contained herein are based on elements of EPA...