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Type Testing of Quarter-turn Valves for Fugitive Emissions
Translate name
STANDARD published on 1.10.2023
Designation standards: API STD 641-ed.2
Publication date standards: 1.10.2023
SKU: NS-1156469
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: American technical standard
Category: Technical standards API
API STD 641, 2nd Edition, October 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 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.
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Latest update: 2025-06-30 (Number of items: 2 206 311)
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