What to do when a high corrosion and wear resistant multistage pump does not suck water

Category: User Stories

2025-05-15

To troubleshoot the problem of a high corrosion-resistant and wear-resistant multi-stage pump not drawing water, it is necessary to investigate from multiple aspects, including external factors, pump problems, operation and adjustment, and maintenance, and take corresponding measures to solve the problem. If the problem is complex, it is recommended to seek professional help in time.

I. Check the power supply and motor

Ensure that the multi-stage pump is connected to the power supply and the motor is running normally. Check whether the power lines are unobstructed and whether the motor is overheating due to overload or jamming. If there are any abnormalities, they should be handled promptly.

II. Check the pump installation and location

1. Ensure that the multi-stage pump is installed correctly, the inlet and outlet directions are correct, and avoid reverse rotation.

2. Check whether the pump is at the appropriate height to ensure sufficient suction head. Insufficient suction head may prevent the pump from drawing water.

III. Check the pump casing and piping

1. Check if the pump casing is leaking. If there is a leak, it should be handled promptly.

2. Check if the inlet pipe is leaking or blocked, ensuring that the pipe is unobstructed.

3. Check if the outlet pipe is unobstructed and whether there is excessive resistance, preventing the pump from drawing water normally.

IV. Check the pump speed

Check whether the speed of the multi-stage pump meets the requirements. Too low a speed may prevent the pump from working normally. If the speed is abnormal, check whether the motor and transmission parts are normal.

V. Check the liquid properties and temperature

1. Ensure that the liquid being transported is within the applicable range of the pump, avoiding liquids that are too corrosive or too weak from damaging the pump.

2. Check the liquid temperature. Too high or too low a liquid temperature may affect the pump's water absorption performance.

VI. Other precautions

1. Check the pump's sealing performance to ensure there are no leaks.

2. Check whether the pump's bearings and other moving parts are normal. If there are any abnormalities, they should be replaced promptly.

3. Regularly maintain the pump to ensure it is in good working condition.

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