Examine the check valve, cutoffvalve of auto water supplying system see if open or close correct.
检查自动给水系统的止回阀，截止阀等各阀是否正确开启或关闭。
2
In the selection of imported valves, if the medium containing fibers, containing impurities, containing particles should be used in the V-belt cutoffvalve.
在选用进口调节阀时，如果介质为含纤维、含杂质、含颗粒时，应选用V型带切断的调节阀。
3
Close the door distribution discharge valve and, if cut-offvalve is opened, pumping water to the piston from the pipeline until the pump output.