Reciprocating pump

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Reciprocating pump attached to a Windmill on a farm.

A reciprocating pump is a class of positive-displacement pumps which includes the piston pump, plunger pump and diaphragm pump. When well maintained, reciprocating pumps will last for years or even decades; however, left untouched, they can undergo rigorous wear and tear.[1] It is often used where a relatively Small quantity of liquid is to be handled and where delivery pressure is quite large. In reciprocating pumps, the chamber in which the liquid is trapped is a stationary cylinder that contains the piston or Plunger.


By source of work
  • Simple hand-operated reciprocating pump. The simplest example is the bicycle pump, which is used ubiquitously to inflate bicycle tires and various types of sporting balls. The name "bicycle pump" is not really the most correct term because it generates more compression than volume displacement.[2]
  • Power-operated deep well reciprocating pump
By mechanism
  • Plunger pumps are positive displacement devices ideal for pumping a range of liquids—even liquids with high levels of solid content.
  • Single-acting reciprocating pump: Consists of a piston of which only one side engages the fluid being displaced.[3] The simplest example would be a syringe.
  • Double-acting reciprocating pump: Both sides of the piston engages the fluid being displaced, with each stroke of the piston carries out both suction and expulsion at the same time. Thus it require two inflow pipes and two outflow pipes for double-acting pump.[3]
  • Triple-acting reciprocating pump


Some examples of reciprocating pumps include

See also[edit]



  1. ^ "Preventing Suction System Problems Using Reciprocating Pumps | Triangle Pump Components, Inc". Triangle Pump Components, Inc. Retrieved 2016-12-21.
  2. ^ Dam, Gert. "PUMPS - TYPES & OPERATION - RECIPROCATING (PISTON) PUMPS". Retrieved 2016-12-21.
  3. ^ a b "Reciprocating Pump (Single-acting and Double-acting reciprocating pump)". Retrieved 2016-12-21.