An Introduction to Commercial Water Pump

Posted on Jan 28, 2021

Commercial Water Pump

Commercial water pumps are used throughout a wide variety of businesses and industries for conveying different types of fluids. In addition to water, many water pumps are available for transferring oils, chemical fluids, foods, beverages, sludge, wastewater, and more.

What Is a Commercial Water Pump?

Commercial water pumps come in various types for different liquid transferring applications, including commercial businesses, medical equipment, buildings and schools, and so on. Some common water pump types which are popular in the market include the centrifugal water pump, the booster water pump, the submersible pump, and the gear pump, and so on.

Commercial water pumps are used throughout a wide variety of businesses and industries for conveying different types of fluids. In addition to water, many water pumps are available for transferring oils, chemical fluids, foods, beverages, sludge, wastewater, and more. Some of the advanced versions of commercial water pumps or industrial water pumps are designed to work under extreme conditions in different climates and terrains. The universal goal of modern commercial water pumps is to be durable, and able to consistently provide high performance all day.

Water pumps, including industrial water pumps and commercial water pumps, can be basically classified into two pump families: the centrifugal water pumps and the positive displacement water pumps. When compared to the two, the centrifugal pumps are better suitable for applications requiring a higher flow rate, but they are also available for low flow rate which can be down to 0.1 Cp. More than 80% of the water pumps used in the chemical plants are centrifugal pump types. However, there are still many users and applications who prefer positive displacement pumps. Following is the introduction of different kinds of commercial water pumps that are widely used today.

:: Read more: What Is A Commercial Pump And What’s its benefits?


Small Centrifugal Pump

Centrifugal pump is widely used today to transfer and move the water or other fluids via the force which is converted by rotational energy from the impellers. Small centrifugal pumps, which are also called miniature water centrifugal pumps are convenient and efficient commercial water pumps that can guide the flowing water to the desired destination in different businesses. 

When it comes to the working principle of the centrifugal type commercial water pump, the small pump utilizes the power from an electric motor, pneumatic or hydraulic system to drive the rotor and apply the pressure in moving fluid flows, increasing the velocity. As the water flow is drawn into the impeller along the rotational axis, the liquids can be effectively accelerated and subsequently flow out linearly to the diffuser and exit the commercial water pump. The flow rate, as well as the water pressure both increase as the liquids, pass through the rotor.

The centrifugal water pumps are ideal solutions for applications like water supply, pressure boosting, water pumping for commercial, domestic as well as industrial specifications. The versatile water pumps are also available for some special applications such as fire protection or boiled water circulation. Smaller centrifugal pumps are commonly used for cooling equipment, vehicles, and more.


Booster Water Pump

The booster water pump is also a popular commercial water pump type that provides automatic liquid transferring services under pressure. It is one type of centrifugal water pump that is designed to apply pressure to the fluids which are already flowing to guide the flows from one place to another in the piping, mostly to the next water pump or the end position of the pipelines. Generally found in pipelines, the automatic booster pumps are ideal choices for applications requiring pressure more than a single pump can transfer, or systems having a second pump that needs to prevent from cavitating.

In general, the booster water pumps have multiple impellers to draw the water flows in through the input valves. As the liquids pass through the impellers, the pumps apply pressure to accelerate the flows. The multi-stage configuration of this commercial water pump is greatly suitable for applications like conveying the liquids up to significantly higher elevations or forcing through considerable long pipelines. Following are some acceptable ranges of the work of general booster water pumps: For starters, the appropriate flow rates of the processing fluids range from 5 to 10000 gallons every minute. The full head range of the operation is 200 to 7500 feet. Also, the horsepower of typical automatic booster water pumps can be up to 5000 hp.


Positive Displacement (PD) Pump

Another classic water pump family, the positive displacement water pump, can be subdivided into the reciprocating style and the rotary style. The positive displacement water pumps transfer the water flows through consistently, repeatedly enclosing motion of the fixed volume, forcing the fluids mechanically move through the water system. The motion is cyclic, which is driven by gears, rollers, pistons, screws, and more. The positive displacement water pump comes in a large variety of designs.


● Reciprocating Positive Displacement Pump

The reciprocating type of positive displacement water pump runs by the back-and-forth strokes of a plunger or a piston, typically. The cycle to move the fluids is called “reciprocation”, which creates numerous pulses. The water flows will be accelerated during the compression stage and slowed down at the suction stage. This predictable and consistent cyclic movement of reciprocating positive displacement pump makes the device a great choice for tasks requiring precise metering and dosing.


● Rotary Positive Displacement Pump

On the other hand, there are rotary positive displacement water pumps that utilize the movement of spinning cogs or gears to move the water flows, instead of the back-and-forth movements. These rotary components can create a liquid seal with the casing of the displacement pump, forming suction at the inlet. As the water flow enters the pump, it is enclosed in the structure of the gear teeth or cog teeth under rotation, then the liquids will be conveyed to the outlet. Among various designs, the gear pump is the most basic rotary positive displacement water pump.


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