hoist cylinder oil relief valve
起重机油缸油压安全阀
discharge from safety and relief valves
由安全阀和泄压阀泄放
Remove the relief valve cover bolts while holding the cover down.
边压住阀盖，边拆卸安全阀阀盖螺栓。
press safety interlock valve
压力机用安全联锁阀
A pressure differential relief valve is located in a zone between the check valves.
压差安全阀位于止回阀之间的区内。
No relief valve is required where two pressure reducing valves are installed.
如果装上两个减压阀，就不需要安全阀。
Remove the pressed in relief valve seat and seat O-ring.
拆卸压进去的安全阀阀座和阀座O形环。
a safety, exhaust valve
安全阀、 排气阀.
A pressure-and-vacuum vent valve is a kind of important adjunct,which pressure testing relates to its security and reliability.
呼吸阀是油罐的重要附件之一,其试验压力关系到呼吸阀的安全性和可靠性。
Insensitive to excess-pressure (caused by a blocked discharge pipe, for instance) provided by an incorporated excess-pressure safety valve in the hydraulic oil reservoir.
泵不会超压（如在出口管路堵塞的情况下），因为在液压油池中装有超压安全阀。
safety valve dome
安全阀汽包，安全阀座
Selection and Calculation of Safety valves for LNG Storage Tanks
液化石油气储罐安全阀的选型及计算
Failure Analysis of the Elastic Spring of the Safety Valve of a Liquefied Oil Gas Storage Tank
液化石油气罐车安全阀弹簧失效分析
Safety Inspection of Petroleum Gas Storage Tanks and Proper Selection of Safety Valves
石油气贮罐的安全检验及安全阀的合理选用
Hand wheel,lever and spanner driving and safety valve,pressure reducing valve,traps overleap this symbol.
注：1、手轮、手柄和扳手传动以及安全阀、减压阀、疏水阀省略本代号。
Record this as the opening differential pressure of the relief valve.
将此读数记录为安全阀开启压差。
Purpose: To test operation of pressure differential relief valve.
目的：检测差压安全阀的工作性能。
Relief angle valve. Pressure or vacuum can be specified.
安全角阀。可指定压力或真空度。