Reciprocating Piston Pump

Reciprocating piston pumps (also oscillating pumps) are a group within the positive displacement pumps where the volume of the pump chamber is periodically changed by an axial movement of the inner part (piston).

There are different types of piston pumps (reciprocating piston pumps):

  • the submersible piston pump, also called plunger pump,
  • the disc piston pump and
  • the diaphragm pump.

By asynchronously opening and closing the inlet respective outlet of the pump chamber, the fluid will moved in the pump chamber and then pressed to the discharge side.

Reciprocating pumps are generally used for applications that require relatively low flows and high pressures. Since each cylinder delivers a definite volume of liquid to the system, these pumps are also applicable for dosing and metering tasks. The disadvantage against rotating pumps is the pulsating operation.

More articles on this topic

Plunger pump

Plunger pumps have a displacement body (plunger) which performs an axial movement in the pump working chamber.

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