Adopting special ceramic materials, after precision processing, it is used as the component for passing liquid through the valve. Due to the high-precision fitting and relative rotation of flat or spherical surfaces, the opening, closing, reversing, and flow rate of liquid can be controlled, Its excellent performance such as low torque, wear resistance, and corrosion resistance has changed people's cognition regarding the traditional structure valve (low torque ,durable).
In recent years, with the rapid development of industrial and agricultural production and urbanization, problems such as industrial waste water, secondary water supply pollution in high-rise buildings, groundwater pollution and agricultural irrigation water waste have become increasingly serious. The demand for water treatment equipment and water-saving equipment is growing day by day.
The technology of automatic control valves for water treatment systems began in the United States, mainly using rubber piston structure and cam structure, and its sealing parts are rubber and plastic, which are prone to impurities and wear, and are not durable. Runxin company developed control valve with ceramic hermetic head faces sealing structure for water treatment system firstly in2003. It uses high flatness ceramic sealing disk as the sealing part, which has the characteristics of good sealing performance, convenient positioning, good interchangeability, long service life etc. Through continuous series development and automated and large-scale production, more than 150models of control valves have been formed, such as water treatment capacity 1-50m/h, time clock type and meter type, manual and automatic, LED or LCD and indicator light display, etc.
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