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.
目前大量生产的安全阀有弹簧式和杆式两大类。
At present, there are a large number of production safety valve spring and leveraged two broad categories.
从安全阀外壳上拆卸活塞和弹簧，彻底清洗包括隔膜的所有部件。
Remove the piston and spring from the relief valve housing and thoroughly clean all parts including the diaphragm.
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