Pipeline pump common troubleshooting methods

pipeline booster pump is a common equipment and pressurized water in various fields, its characteristic: simple and compact structure, easy installation and maintenance, stable and reliable performance, the following is about pipeline booster pump failure and processing method.

no, pipeline pump water

1, import and export valve does not open, in and out of the pipe blockage, flow impeller block; Check, place a blockage.

2, motor direction is wrong, motor open phase, revolutions slowly, Adjust the direction of motor, tighten the motor wiring.

3, suction pipe leakage; Tighten the sealing surface, eliminate the air.

4, not the filling of liquid pipeline pump, pump chamber with air; Open the pump cover or open the discharge valve, exhaust air.

5, imported water supply shortage, electron absorption is high, the bottom valve is leaking; Stop check and adjust ( Hooked up to the water pipe and use suction easy to appear the phenomenon) 。

6, pipeline resistance is too large, pump selection, improper; Reduce the pipe bend, to choose the pump

2, pipeline water pump outlet pressure is insufficient

1, there is air in the liquid; The liquid in the air.

2, low speed impeller damage; rotation speed, the change of the impeller.

3, outlet valve open to spend; Down the outlet valve.

three insufficient, pipeline pump discharge

1, the partial blockage of pipeline pump flow channel impeller, scale deposit, valve opening; Place a blockage, readjust the valve opening, pump and pipeline.

2, RPM is too low; Increase the pump shaft revolution.

3, impeller wear; Change of the impeller.

4, outlet valve open to spend; Change of the impeller.

5, the voltage is low; Voltage regulator.

4, heat pump motor

1, the environment temperature is too high, the motor cooling bad

2, motor load is too heavy.

3, voltage too high or too low, or lack of phase.

4, motor in water; Check the mechanical part adjust processing, regulator is near the rated flow and the lift pump outlet valve.

5, pipeline pump leaking

1, mechanical seal wear; Replacement.

2, the pump body with sand holes or broken; Welding or replace

3, sealing surface is not smooth; Trim.

4, installation bolt loosened; Tighten.

6, pipeline pump vibration or noise

1, the installation is not strong; Should reinforce the bearing parts of the water pump flange.

2, suction pipe leakage or suction mouth submerged depth is not enough, make the pump in inhaled air; Blocking leakage or extended suction pipe submerged depth.

3, impeller cavitation; Reduce the pump installation height or increase the suction pipe diameter or increase the inlet pressure, and replace the damaged impeller.

4, deviating from the operation condition; As far as possible to high efficient area ( The rated point) Operation, to avoid the pump running at large flow.

7, pipeline pump power up too much

1, more than the rated flow using; Adjust the flow rate, small outlet valve.

2, high electron absorption; Reduce the mounting surface.

3, bearing wear; Replace the bearing.

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