Choosing the Right Industrial Pumps - Selection Guide

Posted on Oct 12, 2020

What are the industrial pumps?

Industrial pumps are the machine used to extract or circulate fluids or gas in an industrial application. The pumps can be used to channel out the unwanted water from a specific site. The pumps can also be used to circulate the air or liquid in an enclosed environment such as a lab or a factory. The circulation of the fluid or the gas can be confined in certain machinery to cool down the machine while it is running. Through the circulation, the air or the fluid that is involved in an industrial application can be purified.

More types of application of the industrial pumps are the transportation of water or oil, the fluid circulation systems or water supply for industrial use. They are often incorporated with other machinery as well such as the industrial cleaning equipment, coolant systems, compressors, and filtration systems. Generally speaking, the application of industrial pumps can be quite versatile with only a couple of additional features while the basic components of the pumps are in fact the same.

The components of a pump

There are numerous components in an industrial pump; however, the most essential parts of the machine are the casing, the inlet and outlet, the impellers, and the motor. A pump is typically driven by the electric powered motor. When the motor is on, it drives the impellers to spin. The impellers play the major role in inhaling the gas or liquids into the pump and forcing them out after they are pressurized. The liquid and gas enter and exit the pump through the inlet and outlet of the pump. The casings or plates of an industrial pump assure that there is no leakage of gas or liquid when the pump is running. Though the basic components of a pump are similar, with different types of industrial pumps and different purposes they are used, the mechanisms the machines apply to intake the gas or liquid and push them out are different.

Types of industrial pumps

● Multistage centrifugal pump

The multistage centrifugal pumps are one of the most commonly applied industrial pumps which have multiple liquid chambers, the stages, for the liquid to pass through. Normally, as the liquid passes through the stages, it is more and more pressurized. The more stages the liquid has to go through, the higher the pressure is when it is forced out of the pump.

This type of pump is widely accepted because it has high energy efficiency. There are several subtypes of multistage centrifugal pumps such as the horizontal multistage centrifugal pumps, and the vertical multistage centrifugal pumps. The horizontal centrifugal pumps can handle higher flow rates and they are best for applications such as pressure boosting, high pressure cleaning, mine dewatering, etc. The vertical centrifugal pumps are better applied in confined working environment and they are useful in high pressure shower system or boiler water feeding.

● Immersible pump

The immersible pumps are made for dry working environment. When the immersible pump is working, the motor of the pump is above the liquid with one end under the liquid. It is used more often in dewatering application, especially for effluent or industrial wastewater that contains solids, rags or other substances. The mounting of the immersible pump sometimes requires a guide since the body of the pump is away from the water. The immersible pumps can also be used for the circulation of coolants and lubricants for machine tools. Some of the high pressure washing systems or cleaning units also involve the application of the immersible pumps since they are effective in in-taking the water and pressing it out.

● Submersible pump

Submersible pumps are the pumping machines that are designed to submerge into liquids. The submersible pumps come in with the configuration as a tubular barrel. This pipe-like water pump conceals the motor within the barrel so that the liquid outside the pump does not get access to the electrical components inside it. When the submersible pump is working, the whole body of the pump submerges into the water. Therefore, the efficiency of the pump is enhanced because the pump is naturally cooling down by the water around it.

The submersible pump is an ideal option for dewatering operation. In addition, it can also be used in the oil wells. Whether it is an inland oil well or an offshore oil well, the submersible pump can extract the oil from underneath the ground and transfer it to the refinery for further process. The maintenance of the submersible pump is easy because all the critical components are inside the barrel. They are not easily contaminated or compromised with the protection of the casing.

● Coolant pump

The coolant pump is applied in the cooling systems of industrial machinery. The working load of the machines in the production lines or assembly lines is very high and the cooling down by the room air is not enough. They need to be cooled down with a gas circulation system or liquid circulation system. The coolant pump is used to circulate cool gas or liquid inside the machines so that the heat generated by the machines can be carried away. Normally, the liquid is delivered by the pump into the engine and the cylinder head of a machine where there is most accumulated heat. With the coolant pump to carry away the waste heat, the machines can run more effectively.

● Swimming pool pump

The major application of a swimming pool pump is to channel the water into the pool and evacuate the water out of the pool. The swimming pool pump is also involved in circulating the water in the pump in order to maintain the quality of the water. The maintenance of a swimming pool pump is a bit more complicated than other types of industrial pumps because it is usually hidden away from the pool. The circulation of the water is important as in filtering the substances in the pool. If the pump fails to run, the germs or algae grow rapidly inside the water and it threats the health of the swimmers.

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