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Melamine is special
Wear-resisting valve series
High temperature valve series
Cryogenic valve series
Butterfly Valve
Ball Valve
Gate Valves
Globe Valve
Check valve
Multi-function hydraulic control valve
Pipe fittings and special valves
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Return
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Technology Frontier
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Petroleum and Natural Gas
Chemical industry
Metallurgical Industry
Electric power industry
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After the terms of service
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為什么切斷閥應盡量選用硬密封?
Time:2015-11-12
切斷閥要求泄露越低越好,軟密封的泄露是最低,切斷閥效果當然好,但不耐磨,可靠性差,從泄漏量對密封及可靠性的雙重標準來看,軟密封切斷就不如硬密封切斷好。
--截斷閥規范要求透露越低更好,軟封好性能的透露是評均,截斷閥視覺效果同時好,但不耐磨涂層,準確性能差,從外泄量對封好性能及準確性的交叉基準來談,軟封好性能截斷就不妨硬封好性能截斷好。
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