API STD 641

Detailinformationen

Bezeichnung: API STD 641

Ausgabedatum: 01.10.2023

Seiten: 25

Land: Amerikanische technische Norm

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Annotation

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