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分析和探讨了金属密封副止回阀密封试验相关标准对其泄漏率的规定,提出了GB/T12233《通用阀门铁制截止阀和升降式止回阀》修订版对金属密封副止回阀密封试验泄漏率的主要修改内容。
Analysis and discussion of the metal seal check valve seal test its leakage rate requirements, proposed GB / T12233 “universal valve iron check valve and lifting check valve” revised version of the metal seal check valve seal Test leak rate of the main changes.