In the daily use of high intensity among the ordinary self-priming sewage pump will inevitably fail, then the common self-priming sewage pump failure which? In the event of failure, how should we exclude it? Down the company's water pump experts to tell you how to solve the self-absorption sewage pump failure.
First, self-priming sewage pump motor does not rotate
(A). Reason:
1 .motor is damaged;
2. power is blocked;
(B). Exclusion method:
1. Repair or replace the motor;
2. Check that the power is on.
Second, the pump is not a liquid
(A) reasons:
1. insufficient drainage;
2. Suction end of a flange, a large number of valves or piping leakage;
3. Drainage port or discharge port fight cap is not tight, or no fight washer inside the gasket;
4. There is no liquid in the container or liquid pool.
(B) the exclusion method:
Check one by one, for exclusion.
Third, self-absorption sewage pump process, head (pressure) is not up to standard
(A) reasons:
1. Voltage is too low, the rated speed of less than;
2. Motor reversal;
3. Bottom filter plug, over-current shortage;
4. Suction end of a flange, valve or somewhere pipeline chronic air leakage, affecting the pump vacuum;
5. Containers or liquid tank too little liquid, and sometimes inhale the air.
(B) the exclusion method:
Check one by one, for exclusion.
Fourth, self-priming sewage pump motor and pump connection parts leakage
(A) reasons:
1. Start instantaneous leakage, the phenomenon disappeared after normal operation;
2. Operation has been leakage (may be sealed device is damaged, or the actual head, pressure and pump parameters of the difference).
(B) the exclusion method
1. Drainage fluid perfusion over, not a fault;
2. If the sealing device is damaged, please consider repair or replacement: If the pressure parameter difference is too large, please consider the re-selection or adjustment of the pump pressure is too high, Actual working pressure.
Article source: http://www.welpumps.com/pump-knowledge/228.html
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