The main valve is controlled by a float ball valve which locates on the top of tank or reservoir. The valve maintains the maximum water level of tank or reservoir continuously.
100X diaphragm control ball valve is a multi-function hydraulic control valve, The water level can be controlled below a preset elevation, This valve can be widely used in influent pipes of the pools and water tower in high-rise buildings, municipal domestic water systems, fire fighting, facilities, factories and mines. When adding a solenoid valve, then comprises another type, which provides double control to water level, normally used at high overflow prevention project.