General Description Air Compressor Pressure Switch Control Valve Regulator Gauges with Quick Connector. Technical Specifications Color: As shown Material: Plastic, galvanized aluminum, iron Voltage: 220V Operating pressure range: 0-0.8 Mpa Maximum flow rate: 3000 L/min Pressure gauges: 0-180 psi Pressure switch control range: 95-125 psi Relief regulator setting pressure range: 30-120 psi Inlet and outlet port internal thread: G1/4 0.4 ft/11 mm Compatibility and accessories Can install the original gas pressure gauge Compatible with the original gas purge valve Installation Easy installation, suitable for inverted, vertical or horizontal Aesthetic and modern appearance Usage Automatic compressor control Automatic charge/unload: pressure below 90 psi, compressor on; pressure above 120 psi, compressor off Ideal for straight-line oil-free mufflers and small conveyor belts Other information Small size and light weight V-shaped seal for better sealing and wear resistance 30% higher flow