WFB seal-free self-priming pump often appear in the failure and the corresponding solutions are the following:
First, the connecting pipe and the pump connection leaks, the pump can not form a vacuum, non-aspirating cause of the fault usually has two points:
1, is the aging gasket, the piston closed lax.
2, is the control valve and pump connections leak.
The solution to this problem is to first check and handle the connections and then replace the gasket.
Second, the motor and pump connection site leaks in the start moment, but does not leak during normal operation
The cause of the failure is the working pressure exceeds the pump parameters, then resolutely the method of failure can only reduce the work pressure. In addition, you can assist in opening the outlet valve before starting, shut down slowly after normal operation.
Third, the connection between the motor and pump leakage at work
The fault usually pay the impeller and pump cover too much gap caused by the solution just adjust the gap size of 0.5-1MM.
Fourth, flow, lift (pressure is not up to standard)
The reasons for the failure of more diverse, may be the following situations:
1, too little liquid container or liquid pool, sometimes sucked into the air
2, the motor reversal
3, liquid absorption end of a only cut blue, the valve or pipe somewhere chronic leak, affecting the pump vacuum
4, the bottom of the filter block, lack of over-current
5, the voltage is too low, the rated speed of less than solution is to check one by one, for exclusion.
Fifth, the electric air control valve part, the piston is not sealed or closed lax, the pump does not absorb liquid
There are usually two reasons for this failure:
1, poor contact with the motor cable terminals or fuse damage, the power barrier, the piston seal does not move. The solution to this problem is to check and turn on the power
2, the guide shaft oil stuck, sealed piston is not in place, the solution is to add oil lubrication
Six, the pump does not water
There may be the following four causes of failure, one by one investigation can be.
1, no liquid container or pool
2, aspiration of a fluid-only Lan, a large number of valves or pipe leaks
3, drain or vent mouth no gaskets gasket
4, lack of drainage
Seven, the motor does not turn
The reasons for the failure of the following situations:
1, power nowhere, the solution is to check the power is turned on
2, the motor is damaged, the solution is to replace or repair the motor
For WFB seal-free self-priming pump, we only need to keep in mind the above seven major problems and solutions, I believe we can solve the ninety-nine percent of the failure, so that the product to better serve you.
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