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Can the leakage standards specified in GB/T4213-2008 for pneumatic control valves be applied to butterfly valves?

2009-03-11View Original

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Do butterfly valves belong to pneumatic control valves? Can the leakage standards for valves specified in GB/T4213-2008 for pneumatic control valves be applied to butterfly valves? Please ask the experts for help! Thank you
Reply #22009-03-11
Where applicable, the sealing standards for butterfly valves generally follow those for control valves; the international standard is ANSI FCI-70/2 (ANSI B16.104). For instruments, sealing grades IV, V, and VI are most commonly used: lol

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Translated at 2026-07-28 03:50:53

Original: https://bbs.hcbbs.com/thread-412124-1-1.html

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