Maintaining Your Submersible Water Pump: A Comprehensive Guide

Published on 2024/11/27

Water is the lifeblood of our homes and communities. Submersible water pumps are a lifeline for a wide range of applications, from residential drainage to industrial wastewater management. Their unique construction allows them to be fully submerged, eliminating issues such as cavitation and ensuring efficient operation even in deep well or sewage applications. Their versatility makes them invaluable across industries, as they can effectively handle all types of liquids, from clear water in residential applications to murky sewage.

Whether you are irrigating agriculture, drawing water from a well, a wastewater treatment plant, managing a farm, or running a business, having a reliable water supply is essential. This is where submersible water pumps come into play.

What Is submersible water pump?

A submersible water pump is a slurry conveying device that can or partially submerge in a liquid and is designed to operate below the surface of a liquid (usually water). Unlike similar pumps on the ground, these pumps operate directly in the water source, making them extremely efficient and versatile. This type of pump uses the power of an electric motor sealed in a protective casing, enabling it to push fluids to the surface without the need for a complex piping system. It can be used for drainage, mud and sewage pumping, water and oil wells, brine treatment, dirt treatment, deep well drilling, irrigation, firefighting, mine dewatering, etc. The purpose is to use the pump body and motor to tightly integrate to pump water to the surface or elsewhere.

Principle

Submersible water pumps are generally composed of a pump body, a water pipe, a pump seat, a submersible motor and a starting protection device. Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and gains energy, leaving the outer edge of the impeller at high speed and entering the volute pump casing. In the volute pump casing, the liquid slows down due to the gradual expansion of the flow channel, and part of the kinetic energy is converted into static pressure energy, and finally flows into the discharge pipe at a higher pressure and is sent to the required place. When the liquid flows from the center of the impeller to the outer edge, a certain vacuum is formed in the center of the impeller. Since the pressure above the liquid surface in the storage tank is greater than the pressure at the pump inlet, the liquid is continuously pressed into the impeller.

How to maintain Submersible Water Pump

1. Abnormal vibration and instability during operation

Maintenance: Tighten all anchor bolts evenly; Provide a separate and stable support for the outlet pipe of the submersible water pump to prevent the outlet pipe flange of the water pump from bearing weight; Repair or replace the impeller;

2. The pump does not produce water or the flow is insufficient

Maintenance: Control the allowable deviation of the pump installation elevation and do not expand it at will;

Before the pump is tested, run the motor idle and check the direction to make it consistent with the pump. If the above situation occurs during use, check whether the power phase sequence has changed;

Check the valve and maintain the valve regularly.

3. Excessive current causes motor overload or over-temperature protection

Usually caused by insufficient cooling when the pump is immersed in water with insufficient depth or low flow rate. This overheating may lead to catastrophic failure, requiring expensive repair or replacement.

Maintenance: Check the power supply voltage and adjust the output voltage; Determine the location of the friction parts and eliminate the fault;

Adjust the valve to reduce the flow so that the motor power matches the water pump;

Check the cause of the water quality change and change the working conditions of the water pump.

4. Environmental Issues

Sometimes sediment buildup at the pump inlet can significantly reduce performance; even in a clean environment, materials such as sand and silt can build up over time and restrict flow.

Maintenance: Routine cleaning is required to ensure the life and optimal operation of your submersible water pump;

Use a constant pressure system to reduce pump cycling, as cycling can wear out the motor;

If your well water contains sand, consider installing a sand separator to protect your pump from abrasive particles.

How to choose a submersible water pump?

To choose the right pump for you, you need to consider:

(1)Flow rate: Measured in gallons per minute (GPM), it should match your peak water usage.

(2) Total dynamic head: This is the vertical distance the pump must lift the water, plus any friction losses in the pipe.

(3 )Power supply: Most submersible pumps use 230V or 460V power. Make sure your electrical system can support this.

(4) Water quality: If your water contains sand or minerals, you need a pump specifically designed to handle these particles.

Submersible water pumps are developed to adapt to increasingly complex working conditions and are user-friendly, with more flexible usage methods. By understanding the needs of submersible pumps and maintaining them on schedule, you can ensure a reliable water supply for years to come. Walker pumps are made of durable and wear-resistant materials. Tell us the pump you need for your project and contact us to get the best model for you!