pressure safety relief valves 安全减压活门
Safety and relief valves 安全和减压阀 ; 安全和泄压阀
Safety or relief valves 安全阀或溢流阀
Safety relief valves shall be labeled for relief pressure rating.
安全减压阀要有标示，标明压力释放级别。
They also are used for relief and by-pass functions; however, they should not be used as safety relief valves.
同时具有排放和旁通功能，不可作为安全泄压阀使用。
They come equipped with safety relief valves and rupture discs to protect the cylinders from pressure build-up.
它们配备有减压阀和破裂盘，以保护钢瓶，防止压力积累。
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