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bi lu fa men guan bi jian de mi feng xing neng
Pages: 32-36
Year: Issue:  1
Journal: Valve

Keyword:  闭路阀关闭件密封性渗漏量截止阀密封等级试验介质公称通径空气试验计算公式;
Abstract: 闭路阀门关闭件的密封性能OCT9544——871.本标准规定了1~3级闭路阀门关闭件的密封要求。本标准适用于公称通径Dy≤2000mm,公称压力Py为0.1~20MPa的各种型式闭路阀门。2.阀门的密封等级应根据阀门的用途按附录B的要求进行选择3.截...
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