2017/03/21

Submersible sewage pump model selection

Most of the submersible sewage pumps we see on markets today call themselves non-clogging sewage pumps. But are they really non-clogging? That depends. Clients usually find their sewage pumps get clogged soon after being put into use in the sewage pool. As a result, the motor of the pump burns out.


Reliability is of key importance for sewage pump model selection. We need the sewage pump to deliver fluids that contain solid materials. That calls for higher standards for submersible sewage pump in terms of mechanical seal, motor capacity, shaft arrangement and selection, than common pumps.

To prolong the service life of submersible sewage pumps, most manufacturers at home and abroad are trying to find a solution with protective system.

It is necessary to add protective system to the submersible sewage pump. But this is not the key to the problem.

To solve the problem thoroughly, we should work on the mechanical seal and overload of the motor.

Notes for submersible sewage pump model selection

The flow quantity of submersible sewage pump should be counted by seconds. If you need to adjust the flow quantity, you can choose according to the max rated value.

We should decide the head of the pump according to the lifting height and loss in pipeline. If you need to deliver mixed fluids containing solid materials, such as sands, generally you should choose self-priming submersible sewage pump. Before placing the order, you had better get a good knowledge about the seal performance and load capacity of the pump.

Submersible sewage pumps used in buildings include submerged sewage pump, vertical submersible sewage pump and horizontal submersible sewage pump. For the last two types, we need to set a shock insulation base, which would take some ground space. For that reason, these two types are rarely used in buildings.

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