Forbid welding the flange after installing the valve. Both sides of the flange should be added the asbestos gasket.
严禁装上阀门后施焊法兰·法兰两边加石棉垫片。
The leakage event of a non-asbestos gasket was taken place at the manhole flanged joint of a boiler after more than one-year service.
一台废热锅炉人孔用非石棉纤维橡胶垫片服役一年多后发生泄漏。
By analyzing for the flange leakage on a heavy oil catalytic pyrolysis unit, the writer put forward a treatment method, i. e. to replace old asbestos gasket with a compound corrugated gasket.
通过对重油催化裂化装置中法兰泄漏原因的分析，提出了处理方法：将原石棉密封垫片改为波齿复合密封垫片。
For example, in order to prevent secondary pollution, even the use of sewage is not Valve asbestos packing and gasket sealing.
例如为了防止二次污染，即使是排污阀也不采用含石棉的密封填料和垫片。
For example, in order to prevent secondary pollution, even the use of sewage is not Valve asbestos packing and gasket sealing.
例如为了防止二次污染，即使是排污阀也不采用含石棉的密封填料和垫片。
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