What Is Plunger Pump?

A plunger pump is a type of positive displacement pump in which the high-pressure seal is stationary and a smooth cylindrical plunger slides through the seal. This distinguishes them from piston pumps and allows them to be used at higher pressures. This type of pump is often used to pump municipal and industrial wastewater.

Piston pumps, sometimes referred to as piston pumps, have a reciprocating plunger that moves back and forth, forcing fluid through a series of valves. Some simple examples from our everyday life could be a bicycle pump, a spray bottle, or a squirt gun.

Commercially, plunger pumps are commonly used in cleaning, disinfection, pest control, agriculture, and other applications in their electrically powered equipment such as pressure washers, atomizers, and sprayers.

The invention of the plunger pump is attributed to Samuel Morland based on a patent of 1675.

What is Plunger Pump and How Does It work

How Does Plunger Pumps Work?
Piston pumps and plunger pumps are reciprocating pumps that use a plunger or piston to move media through a cylindrical chamber. The plunger or piston is actuated by a steam-powered, pneumatic, hydraulic, or electric actuator.

Rotary piston and plunger pumps use a crank mechanism to create a reciprocating motion along an axis, which then builds pressure in a cylinder or power cylinder to force gas or liquid through the pump. The pressure in the chamber operates the valves at both the suction and discharge points.

Piston pumps are used in applications that can range from 70 to 2,070 bar (1,000 to 30,000 psi). Piston pumps are used in low-pressure applications. The volume of fluid discharged is equal to the area of ​​the plunger or piston times its stroke length.