1、The air solenoid valve is a single control solenoid valve with a pilot structure and a spool structure, which has good sealing performance and sensitive response. 2、The inner hole is processed by a special process, with low friction resistance, low starting air pressure and long service life. 3、Manual operation, stable operation, accurate and reliable positioning, suitable for mechanical engineering, automation equipment, hydraulic systems, etc. 4、Small size, easy to assemble and disassemble, used in industrial control system to adjust the direction, flow, speed and other parameters of the medium. 5、Brass electric solenoid valve with high accuracy pilot head, fast response, wide application range, and sensitive response.