Butterfly valve - Wikipedia

A butterfly valve is a valve that isolates or regulates ... Doubly-eccentric butterfly valves (high-performance butterfly valves or double-offset butterfly valves) ...

valve的翻译中文意思-在线英汉词典

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Valve - Wikipedia

10. fluid flow when valve is ... A closed soft seated valve is much less liable to leak when shut while ... the valve is called a quarter-turn valve. Butterfly, ...

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Valve selection for process systems - …

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Electric Hydraulic Pump Double Acting …

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Patent US4673051 - Power steering gear …

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