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All you need to know about Piston Pumps

Piston pumps are widely used components that are found in countless applications. As such, they are available in a variety of types, each of which differs in function and design. In this blog, we will be covering two broad categories of piston pumps which include standard piston and hydraulic piston pumps.

Typically manufactured with a chamber, a piston, and a pair of control appliances, piston pumps function by spiraling down into a chamber, thus reducing the media within a hand pump. When air moves out of the opening valve spring, the minor media can be delivered via the sunken exit valve. As the piston retracts, it discloses the inlet valve and closes off the outlet valve. This process results in suction which can be utilized to bring out extra media for compression.

Hydraulic piston pumps can be defined as constructive ouster pumps. These types of pumps utilize a piston, diaphragm, and a plunger for stirring liquids. In contrast, piston pumps are defined as rotary pumps that utilize a wheel or swirling shaft to regulate the piston. The revolving element can be attached to a shaft from its core or the piston itself. As the revolving component slants, it forces the shaft and piston down to tug it back.

Versatile in function, piston pumps are identical to positive displacement (PD) pumps. This is due to the fact that they both necessitate the assistance of a pumping mechanism to exacerbate the density of a liquid. Hydraulic piston pumps, on the other hand, use energy from external power sources.

It is important to note that piston pumps contain more than one piston with a pair of control devices. A duplex configuration consists of two pistons and two authoritative devices. Similarly, a triplex design has three pistons and three authoritative devices. As such, you must perform an in-depth test of the controlling devices on both sides of the pump to ensure the liquid is flowing optimally. 

In most cases, these pumps are either single or double activity pumps. The latter contains two pairs of controlling appliances and liquid on both ends, allowing the pump to complete a pumping cycle by flowing from one path to another. Keep in mind that when the piston is holding liquid in one direction, it may tire out in the other. To obtain a complete cycle, the pumps require solo action arrangements for flowing in both directions.

That being said, we will now provide a brief overview of common piston pumps, those of which include lift piston pumps, force pumps, axial piston pumps, and radial piston pumps.

To begin, lift piston pumps take advantage of the upstroke of the piston to bring out fluid with the help of a controlling device that is usually labeled as a valve. Force pumps, on the other hand, consist of an upstroke that can pull out fluid via a basin valve which is connected to the cylinder. Moreover, the fluid level can be released through a duct valve and into the outlet tube. Then, axial piston pumps are designed with many pistons that are positioned around a tube area. This type finds use as automotive air conditioning compressors, independent pumps, and hydraulic motors. Lastly, radial piston pumps are a type of hydraulic pump with working pistons that extend radially around a drive shaft.

Before concluding this blog, we are going to look at the advantages and disadvantages of piston pumps. In terms of advantages, piston pumps offer broad pressure capacities, can handle fluids of varying consistencies, and can organize force without the need for a striding flow ratio. With regard to disadvantages, they have limited flow rates, high supervision and maintenance costs, and offer unregulated flow.

If you find yourself in need of piston pumps, piston pump fuel, actuators, carburetors, controlling devices, or other related components, rely on Purchasing Union. Purchasing Union has an inventory with over 2 billion ready-to-purchase items, all of which have been vetted for quality, reliability, and authenticity. Kickoff the procurement process with a competitive quote and see how we can fulfill all of your operational needs.


December 9, 2022
September 23, 2022

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