In the previous article, we mainly talk about the 4 tips when using submersible pumps, today, we will introduce you to the last 4. Let’s get started.

1️⃣Avoid long-term overload work

In order to avoid the long-term overload work of the submersible electric pump, do not use the low-lift pump for high-lift work, do not pump water with large sand content (heavy mud), and observe whether the current value is within the specified range at any time. If it is found that the current is too large, it should be stopped for inspection. In addition, the submersible pump uses water as the cooling source, so the dehydration time of the submersible pump should not be too long.

2️⃣Avoid frequent switching

The submersible pump should not be started too frequently, because backflow will occur when the submersible pump is stopped. If it is turned on immediately, the motor load will be started, resulting in an excessive starting current. Therefore, after the shutdown, the water in the pipe must wait for the backflow of the water to be completed before it can be restarted, which generally requires about 5 minutes.

3️⃣Do not use in a silt environment

If the submersible pump sinks into the mud during use, it will cause poor heat dissipation and burn out the motor windings. Therefore, submersible pumps must not be used in silt environments. In order to prevent the submersible pump from sinking into the sludge, the sludge in its working environment should be removed before the submersible pump is launched, and a fence guard should be used to cover the submersible pump when conditions permit, so as to prevent waste from blocking the water inlet fence and causing the motor to heat up. , poor water.

4️⃣Avoid long-term placement in water after discontinuation

If the submersible pump is not used continuously after going down the well, it will corrode for a long time, failing to start. Therefore, the deactivated submersible pump should not be left in the water and should be turned on once a week for 5-10 minutes. When not in use for a long time, it is best not to soak it in water for long time. It should be placed in clean water and powered on for a few minutes to clean the mud inside and outside the pump, then lift the water surface to dry it, and conduct a major inspection. Disassemble all parts for maintenance, scrubbing, and rust removal. Descale, replace the wearing parts, reassemble it, paint it to prevent rust, and put it in a dry, non-corrosive gas warehouse.

Last few words

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