隔离安全阀须安装全通径阀。
Full bore valves to be installed for isolating PSV's.
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.
不需要拆卸安全阀总成就可以清洗安全阀阀座和阀瓣。
The relief valve seat and disc may be cleaned without disassembly of the relief valve assembly.
减压阀都装有安全阀。
Are equipped with safety relief valve.
安全阀泄放
discharge of safety valve.
安全阀底座
safety valve base.
安全阀汽包
safety valve dome.
全量型安全阀阀瓣用钢的研究
Study of alloy used for disk of bore-full type safety valve
背压安全阀
back pressure relief valve.
安全泄压阀
safety relief valve.
海上用井口上部安全阀和水下安全阀规范
Wellhead surface safety valves and underwater safety valves for offshore service
安装安全阀阀盖螺母，并加以紧固。
Install relief valve cover nut and tighten.
由安全阀和泄压阀泄放
Discharge from safety and relief valves
清洗或更换安全阀阀座。
Clean or replace the relief valve seat.
合成塔安全阀
safe valve of compound tower
安全和泄压阀
safety and relief valves.
通过从外壳上旋下安全阀应该能够拆卸安全阀。
The relief valve should be able to be removed by unscrewing the relief valve from the housing.
边压住阀盖，边拆卸安全阀阀盖螺栓。
Remove the relief valve cover bolts while holding the cover down.
带安全阀的耳钩
eye hook with safety latch
安全阀动作试验
safety valve operation test
将安全阀阀座放回到镗孔内。
Place the relief valve seat back into the chamber bore.
安全阀调整垫圈
safety valve adjusting washer
液压安全阀安装在油罐顶部，与呼吸阀并列使用，在呼吸阀失灵时起安全作用。
Hydraulic safety valve series shall be installed on the top the center of the tank, in order to withstand the damage to the tanks caused by operating failure of breather valve.
