进口优质安全阀，精确阀控调节压力。
Imported high quality safety valve, precise control valve to adjust pressure.
从进口球阀下面连接件拆卸安全阀软管。
Remove the relief valve hose from fitting below inlet ball valve.
采用针阀代替安全阀，实验研究了安全阀进口干度、阀开度对安全阀及下游管路中流动堵塞的影响。
To experimentally investigate it, needle valves and transparent glass tubes with flow channels similar to that of safety valves were used instead of the safety valve.
进口优质安全阀，精确阀控调节压力。
Imported high quality vent cap regulate the internal pressure exactly.
从进口球阀和安全阀上的弯头处拆卸感应管道。
Detach the sensing line from the inlet ball valve and the elbow on the relief valve.
QH型切换阀是两个弹簧式安全阀并联，具有同一进口。
The QH type safety valves are composed of two spring loaded safety valves paralleling. There is only one inlet.
其安全阀是通过密封垫和调节弹簧构成的，当进口压力大于设定值时克服弹簧压力， 把过压气体泄放出去。
The relief valve consists of a sealer and an adjusting spring. When the inlet pressure is greater than a set value, the spring pressure is overcome to discharge over-pressure air.
其安全阀是通过密封垫和调节弹簧构成的，当进口压力大于设定值时克服弹簧压力， 把过压气体泄放出去。
The relief valve consists of a sealer and an adjusting spring. When the inlet pressure is greater than a set value, the spring pressure is overcome to discharge over-pressure air.
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