How Does Piston Pump Work?

26 Dec.,2023

 

Piston pumps are used to transfer a wide range of fluids. This includes everything from abrasives, slurries and sand to lubricants, paint spraying and sanitary dispensing, among many other applications.
This type of pump uses a piston assembly to displace liquids through a rotating barrel and shoe plate. The pistons and the rotating barrel are connected to one another via a spherical joint or shoe joint.
As the cylinder block rotates, the piston moves upward to allow liquid to be sucked in through its input valve, which is powered by whatever device is being operated (electrical motor, gas engine or hand, wind or running water).
Then, when the cylinder block is moved downward, the piston will increase the pressure on the outlet valve and allow high-pressure liquid to exit the cylinder. The motion repeats a few times, until the pump has fully discharged its capacity.
A piston pump is a type of positive displacement pump that dispenses liquid or compressed gas. It consists of a rotating barrel, pistons, and swash plate.
In a piston pump, the first stroke of the piston draws in fluid from the inlet valve and forces it into the piston chamber. The second stroke, which is the opposite of the first, forces out the displaced liquid or compressed gas.
The amount of fluid drawn into the cylinder depends on the length of the piston's stroke, as well as the cylinder's volume. This volume can vary depending on the pump design and application.
The swash plate is attached to the piston shoe plate and attaches to the axis of rotation at an angle. As the swash plate is adjusted, it affects the discharge of the pump.

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