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How to distinguish between sewage pump and submersible pump

June 24, 2023

The difference between sewage pump and submersible pump is mainly reflected in the following three aspects:

1, the two pumps use different processes

The submersible pump is suitable for some special process requirements, such as leakage, special fluid medium, etc., which are more expensive. Sewage pumps are generally used for regulation and also have switching quantities, such as: fan coil ends.

2. The switch modes of the two pumps are different.

The submersible pump is driven by a coil and can only be turned on or off. The switching time is short. The drive of the sewage pump is generally driven by a motor. It takes a certain amount of time to simulate the opening or closing action, and can be adjusted.


3, the two pumps work differently


Submersible pumps generally have a small flow coefficient and a small difference in working pressure. For example, a 25-caliber submersible pump has a smaller flow coefficient than a 15-caliber electric ball valve. The submersible pump is driven by an electromagnetic coil and is easily damaged by voltage surges. Equivalent to the role of the switch, is the role of opening and closing.

The drive of the sewage pump is generally a motor, which is more resistant to voltage shocks. The submersible pump is fast-opening and fast-closing. It is generally used in small flow and small pressure, and the sewage pump is required to have a large switching frequency. The opening degree of the sewage pump valve can be controlled, and the state has an opening, a closing, a half opening and a half closing, which can control the flow of the medium in the pipeline and the submersible pump cannot meet this requirement.
The submersible pump can be reset by general power failure, and the sewage pump needs such a function to add a reset device.

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