使用一段时间后，安全阀闭小严，调压弹簧变形。
After using period of time, the safety valve shuts young Yan, the accent presses the spring distortion.
在不具备压力试验条件时，不允许拆掉换向阀的铅封和调整调压弹簧座。
In the lack of condition for the pressure test, it is not allowed to remove the lead sealing of the reversing valve to adjust the pressure regulating button.
它主要由二片结构相同而对称的调压片通过弹簧旋钮连接而成。
The utility model is mainly formed by that two symmetrical pressure regulating plates having the same structure are connected through springs and turn knobs.
它主要由二片结构相同而对称的调压片通过弹簧旋钮连接而成。
The utility model is mainly formed by that two symmetrical pressure regulating plates having the same structure are connected through springs and turn knobs.
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