System which adapts to varying demand by throttling the compressor inlet proportionally to the demand. Multi-Stage Compressors

A heat exchanger used for cooling air discharged from a compressor. Resulting condensate may be removed by a moisture separator following the aftercooler. Air Dryer

The measured ambient pressure for a specific location and altitude in PSI (pounds per square inch). Automatic Sequencer

The amount of air flow delivered under specific conditions, usually expressed in cubic feet per minute (CFM). Check Valve

The ratio of the discharge pressure to the inlet pressure. Constant Speed Control

Volumetric air flow rate. Cut-In/Cut-Out Pressure

The series of steps that a compressor with unloading performs; 1) fully loaded, 2) modulating (for compressors with modulating control), 3) unloaded, 4) idle. Cycle Time

A material having a large proportion of surface pores, capable of attracting and removing water vapor from the air. Dew Point

Flow of air at specific conditions required at a point or by the overall facility. Discharge Pressure

The temperature at the discharge flange of the compressor. Filters