拆卸安全阀阀盖，阀杆/隔膜总成，和安全阀弹簧。

Remove the relief valve cover, stem/diaphragm assembly, and relief valve spring.

youdao

拆卸安全阀阀盖，阀杆/隔膜总成，和安全阀弹簧。

Remove the relief valve cover, stem/diaphragm assembly, and relief valve spring.

youdao