Reciprocating Compressor

  1. a piston-type positive displacement compressor which increases the pressure of a definite volume of gas by reducing the cylinder volume, resulting in a pulsating delivery of gas;
  2. any compressor which employs a piston working inside a cylinder to compress a gas; usually has “pockets” that allow for limited pressure and flow control.

Source: IADC UBO / MPD Glossary, December 2011. Global Standards

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