About this product: Structure: Air compressor pressure valve with 1/4" outlet safety valve with 2 gauges. With on/off switch. The gasket of piston adopts V-type seal, good sealing, wear-resistant and stable. Advantage: piston structure, the flow rate is 30% higher than that of the traditional diaphragm type. Operation: the body structure of The valve has an overflow port, for rapid pressure reduction. Performance: The air compressor pressure valve switch provides high precision and fast response. Feature: The air compressor pressure valve switch air is small in size, light in weight and easy to install.Product Description Air Compressor Control Valve Regulator with gauges for rapid pressure reduction The main function of this valve is to regulate the closing pressure and start of the air compressor Features: Helps you save the electrical energy of the air compressor. High precision voltage regulation and sensitive feedback. With on/off lever. Users can adjust according to their actual situation. Easy to install and use. Characteristics: Materials: metal + plastic. Maximum voltage: 240 V. Maximum current: 20 A. Pressure switch control range: 90 to 120 psi. Connector: G1/4 Gauge diameter: G1/8. Applicable pressure range: 0.5-0.8 MPA. Maximum flow: 3000L/min Contents: 1 pressure switch for air compressor.