Select unit SI units US units Calculate based on buffer volume Calculate based on permissible switching frequency Please use a decimal point as the separator! Required flow rate m³/min Buffer time min Initial receiver pressure bar Receiver discharge pressure bar Receiver volume* m³ Delivery volume of the largest switching compressor* 1* m³/min Compressed air consumption 2* m³/min Cut-out pressure bar Cut-in pressure bar Permissible switching cycles** 1/h Compressor load*** % 2* : 1* Receiver volume m³ * The additional air flow through the compressor is not taken into consideration * In the case of multi-compressor stations, this is generally a small peak load compressor; however, the calculation can also be performed for base load compressors. As a general rule, the larger the compressed air reservoir, the more effectively and quietly the compressor station switches. ** Maximum permissible switching cycles per hour of the largest switching compressor. Guideline values: For compressors up to 25 hp Z=120, up to 100 hp Z=60, over 100 hp Z=30. *** Critical case: Compressors should switch most frequently at 50% load capacity Load factor A = (2*/1*) = 0.5
