The function of air receiver is to
provide storage capacity to prevent rapid compressor cycling
reduce wear and tear on compression module, inlet control system, and motor
eliminate pulsing air flow
avoid overloading purification system with surges in air demand
Damp out the dew point and temperature spikes that follow regeneration.

A rule of thumb for working pressures of 6 to 7 bar and 9 to 10 bar is to provide a minimum of 8 to 9 litres and 6 to 7 litres of receiver capacity respectively, for every litre of compressor air flow per second for better performance of the system.

In case of automatic starting and stopping of the drive motor regulated by the pressure, a large receiver volume is necessary. A receiver which is too small for this type of operation creates the risk of too high a starting frequency. This may damage not only the motor circuit breaker contacts but also the motor windings. The instantaneous consumption should not exceed the compressor plant flow rate.

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