The reason and the solution of the Self-priming pump not working

The reason and the solution of the Self-priming pump not working

1, As a result of self-priming pump suction pipe caused by untight seal self-priming pump has been in the condition of pumping air so self-priming pump do not go up to the water absorption, the solution is check the self-priming pump inlet piping seal repair leak point may have such as spot welding, pipe joint leakage place should be carefully check for example can be used after running for about 5 minutes down close to the pipeline to hear the sound of have to breathe in.

2, Use for a period of time the self-priming pump due to encounter corrosion or wear, mechanical seal appear slack phenomenon can be self-priming pump don't come up to the cause of the water absorption, replace damaged parts can solve a problem.

3, as a result of conveying liquid inside sundry more or lead to pipe bottom valve inside the pump body appear jam phenomenon, even can be self-priming pump don't come up to the cause of the water absorption, find the choke point clear out clutter can solve the problem.

4, Due to the inlet pipe installation is unreasonable, such as too many elbow quantity control as far as possible in 1-2 of 2 USES 45 degrees of the elbow is good as far as possible when bend, pipe size bigger without the matched as pump diameter can also lead to self-priming pump do not go up to the water absorption.

5, Self-priming pump suck up the water for the first time after the second use to infuse water to suck up air enters into the pump body, such as the self-priming pump outlet pipe no cut-off valve as exports unicom atmosphere after downtime will appear the water back in the air can be inhaled into the pump body with air to enter the next startup so need to infuse water exhaust can suck up the water.The solution is to shut down the outlet valve before the outlet and the ball valve stop to resolve the problem.

6, Self-priming pump suction height in the actual installation use beyond the self-priming pump suction height, without the permission of the suggested replacement self-priming height higher self-priming pump products, or the use of submersible pump products is more suitable.

Common self-priming pump manufacturer self-priming height annotation is 6 m actually use under test from the suction height in 4 to 5 meters, the actual products of self-priming pump self-priming height is as follows: modern self-priming magnetic pump self-priming height 3 to 4 meters, ZW self-priming sewage pump and ZX self-priming centrifugal pump self-priming 4-5 meters high need to know about available ZW self-priming sewage pump, SFBX small stainless steel self-priming pump self-priming height of 4 meters, auxiliary vacuum self-priming pump and quick absorption of self-priming pump self-priming height 8 to 9 m this series of products flow larger mainly used as drainage, flood control and emergency rescue, various industries need to understand you can refer to the vacuum self-priming pump, small flow high lift self-priming pump suction self-priming height self-priming height 30 meters mainly used with household or irrigation of deep well pumping flow rate is only about 2 cubic need to know can refer to the small flow high lift self-priming pump.