Filtration faucet more than ordinary tap filter function, so here first introduced under the filter principle. Filter water to be treated by the water inlet into the body, the impurities in the water deposited on the stainless steel filter, resulting in pressure. Through the pressure switch to monitor the inlet and outlet pressure changes, when the pressure reaches the set value, the controller to the hydraulic control valve, drive motor signal. After the equipment is installed, the technician will debug to set the filter time and cleaning conversion time. The water to be treated enters the body through the water inlet and the filter begins to work normally. When the preset cleaning time is reached, the electric controller supplies the hydraulic control valve , The drive motor signal, trigger the following actions: The motor drives the brush to rotate, the filter cleaning, while the control valve is open for sewage, the entire cleaning process only lasted tens of seconds, when the cleaning is completed, close the control valve, the motor stops rotating, The system returns to its original state and begins to proceed to the next filtration step. The interior of the filter housing is mainly composed of coarse filter, fine filter, suction pipe, stainless steel brush or stainless steel nozzle, seal ring, anti-corrosion coating, rotating shaft and so on.