Pumping Operation and Pump Shutdown of Deep Well Submersible Pump

1, deep well submersible pump open pump operation:
Open the vent valve before opening, and then shut, start the exit valve should not be closed, can be opened a little, to be opened immediately after the start, control to the appropriate location, after the smooth running of the submersible pump to open the pressure gauge valve; When the submersible pump is running, observe whether the indication of the ammeter and the voltmeter has significant changes, whether the operation is noisy, the normal working current should not be greater than the rated value specified on the motor nameplate; the pump should be used within the prescribed flow range, Should not be too large, too large or too small should be appropriate to adjust the opening of the outlet valve; one of the following circumstances should immediately stop running, the pump does not change the working state, the voltage is rated current exceeds the rated pump intermittent water, Yang tube has a significant vibration, the issue of bang noise, frequent tripping protection switch.
2, deep well submersible pump stop pump:
Stop the deep well submersible pump running, close the outlet valve and the pressure gauge valve; water pump stop, in order to reduce the water flow back, should cut off the circuit, close the valve; if restart, must stop after 5min or longer.