Reciprocating Air Compressor are positive displacement machines, meaning that they increase the pressure of the air by reducing its volume. This means they are taking in successive volumes of air which is confined within a closed space and elevating this air to a higher pressure. The reciprocating air compressor accomplishes this by a piston within a cylinder as the compressing and displacing element.
Single-stage and two-stage reciprocating compressors are commercially available:
- Single-stage compressors are generally used for pressures in the range of 70 psig to 100 psig.
- Two-stage compressors are generally used for higher pressures in the range of 100 psig to 250 psig.