Place the relief valve seat back into the chamber bore.
将安全阀阀座放回到镗孔内。
The valve should be opened to this point but not back seated.
阀门应该开启到这一点，但不能反向固定。
Place the screw back into the relief valve disc and tighten.
将螺丝放回到安全阀阀瓣内，并加以紧固。
It is diaphragm type back pressure valve.
背压阀为隔膜式，能调整设定压力。
It is diaphragm type back pressure valve.
背压阀为隔膜式，能调整设定压力。
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