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Tight sealing butterfly valve

2009-03-03View Original

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What is the structural difference between a tight-sealing butterfly valve and a general butterfly valve? How to achieve a tight seal?
Reply #22009-03-03
Tight-sealing butterfly valve? Are you talking about a soft-sealing valve? Rubber seal or F4 seal, which is sealed by extrusion between the valve plate and the sealing surface.
Reply #32009-03-03
Soft seals lined with fluorine rubber and hard seals also require tight sealing. Should the leakage rate be increased?

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Translated at 2026-07-28 04:23:04

Original: https://bbs.hcbbs.com/thread-405116-1-1.html

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