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A10VSO10DRG/52R-PSC14N00-SO857
A10VSO10DRG/52R-PSC64N00
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为什么切断阀应尽量选用硬密封？切断阀门要求泄漏越低越好，软密封阀的泄漏是的，切断效果当然好，但不耐磨、可靠性差。从泄漏量又小、密封又可靠的双重标准来看，软密封切断就不如硬密封切断好。如全功能轻型调节阀，密封而堆有耐磨合金保护，可靠性高，泄漏率达1-7，已经能够满足切断阀的要求。为什么双密封阀不能当作切断阀使用？双座阀门阀芯的优点是力平衡结构，允许压差大，而它突出的缺点是两个密封面不能同时良好接触，造成泄漏大。
