Four-way reversing valve product features (1) The fluid resistance is small, and the full-diameter ball valve has substantially no flow resistance. (2) Simple structure, small size and light weight. (3) Close and reliable. It has two sealing faces, and the sealing surface material of the ball valve is widely used in various plastics, and has good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems. (4) It is easy to operate, and it can be opened and closed quickly. It can be rotated by 90° from full opening to full closing, which is convenient for long-distance control. (5) It is convenient to maintain, the ball valve has a simple structure, and the sealing ring is generally active, and it is convenient to disassemble and replace. (6) When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and when the medium passes, it will not cause erosion of the sealing surface of the valve. (7) Wide application range, from small to several millimeters, up to several meters, from high vacuum to high pressure The valve is a series of gas emergency shut off solenoid valves, specially designed as gas pipe breaker for emergency use. It can be connected with gas leaking detection sensor, fire alarm circuit or other intelligent sensor modules so that on site or remote shut down on gas supply (manually or automatically) is possible, hence ensuring the safety on gas usage. The valve features an auto-close when strong vibration is detected. After close, manual operation is required to turn on the valve. This feature meets safety regulations in the event of an accident. Cut Off Valve,Solenoid Control Valve,Solenoid Gas Safety Shut Off Valve,Emergency Gas Shut Off Solenoid Valve Rictron Industrial Co., Ltd , https://www.szrictron.com