Air compressor pressure Switch PS-A21

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Air compressor pressure Switch PS-A21 Air Compressor Pressure Switch PS-A21 is used to regulate the tank pressure between two preset values(up to 175 psi) electrically driven air compressors. It is available with an unloading valve, which prevents compressors from starting while overloading, and it is available with an On-Off knob for manual cut off the compressor. The design allows the unloading valve to be rotated into eight different positions. Four ports connection makes it easy to connect with safety valve and pressure gauges. Model PS-A21 Rated Voltage / Frequency 240V/50Hz; 120V/60Hz Rated Current / Power 17A/3HP; 20A/1.5HP Max. Pressure 175PSI Min. Pressure 20PSI General Pressure Setting 90-125PSI Inlet Base One way or four way Inlet Connection Thread NPT1/4’ G1/4 (BSP 1/4) Male or Female pipe fitting are available. Conversion: 1Kgf/cm2 = 14.2PSI , 1bar = 14.5PSI If you need Air compressor pressure switch PS-A21, please freel free to contact us for price by submitting "more information" as below !