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API STD 641
Type Testing of Quarter-turn Valves for Fugitive Emissions, Second Edition
Translate name
STANDARD published on 1.10.2023
The information about the standard:
Designation standards: API STD 641
Publication date standards: 1.10.2023
SKU: NS-1250876
The number of pages: 25
Approximate weight : 75 g (0.17 lbs)
Country: American technical standard
Category: Technical standards API
Annotation of standard text API STD 641 :
This standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarter-turn valves. Valves larger than NPS 60 and 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. See more
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