Description Features: *Air Compressor Pump Pressure Control Switch 4 Port 220V/380V Manifold Relief Regulator 90-120PSI Control Valve with Gauge *Small size and light weight *Piston seal adopts V-ring, which has good sealing effect, wear resistance and stability. *Piston type structure and flow rate are 30% larger than traditional diaphragm type. *The valve body structure has overflow, and the decompression speed is fast and intuitive. *High accuracy of voltage regulation and sensitive response *The structure can install the original gas pressure gauge, the original gas vent valve, and the application is various. *Easy installation. Reverse, vertical and horizontal installation can be made according to customerspreferences. The appearance is atmospheric and beautiful. *This square pneumatic pressure regulating valve is widely used in direct-line, oil-free silencer and small belt conveyor. * There is a red ON/OFF switch knobconvenient design for use. *Auto control, Auto load/unload. Pressure lower than 90PSI, turn on the compressor. Pressure over 120PSI, turn off the compressor. *Air Compressor Pump Pressure Control Switch 4 Port 220V/380V Manifold Relief Regulator 90-120PSI Control Valve with Gauge Specifications: Colour: As shown Material: Plastic, Electroplating Aluminium, Iron Voltage: 220V/380V Optional Operating pressure range: 0-0.8Mpa Maximum flow: 3000L/min Gauges: 0-180 Psi Relief Regulator adjust Pressure Range: 90-120PSI Inlet and Outlet Port Inner Thread: G1/4 0.4/11mm Package Contents: 1 x Air Compressor Pressure Valve Switch