Structure: Air compressor pressure valve with 1/4 "output safety valve, with 2 manometers. With On / Off Switch. The piston seal adopts a V-shaped seal, which has good sealing performance, wear resistance and stability. Advantages: Piston structure, the flow rate is 30% higher than that of the traditional diaphragm type. Operation: The structure of the valve body has an overflow orifice, which can quickly reduce the pressure. Performance: The air compressor pressure valve switch can provide a quick and high-precision response. Features: The air compressor pressure valve switch is small, lightweight and easy to install. Product manual The control valve controller of the air compressor With manometer can quickly reduce the pressure the main function of the valve is to adjust the closing and startup pressure of the air compressor. Features: Help you save the electrical energy of the air compressor. High precision voltage regulation and sensitive feedback. with on / off lever. Users can make adjustments based on their actual situation. Easy to install and easy to use. Features: Material: Metal + plastic. The size of the box is 180 * 105 * 110 mm Net weight of the product set: 590 grams Nominal voltage: 220 / 380V Exhaust pipe: 6 mm Contact method: Normally closed Connector size: 12 mm, 1/4 inch External diameter of the pressure discharge port: 9.5 mm Maximum current: 20A working pressure: 5-8kg life: 80000 times