Water filter GFK series

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GFK Series automatic self-cleaning filter is the high performance filter particularly designed for fine water filtration.The superior filtration rating is 15 to 300μm. Highly efficient back-flushing secures normal working even for the turbid raw water.The water flows into the screen inside from the filter inlet, passes the screen and flows out from the outlet.The particles are blocked by the screen mesh. When the filtration pressure drop rises to the preset value, the control system triggers the cleaning sequeces. The back-flushing nozzles driven by the motor moves helically and clean the inner screen surface. After all the screen area is scanned and cleaned by the suction nozzles, one back-flushing cycle is completed. During back-flushing, the filtration goes on and only very low flowrate fluctuation and outlet pressure decrease happens. The water flows into the screen inside from the filter inlet, gets through the screen and flows out from the outlet. The impurity particles are blocked by the screen mesh. After the accumulation of more particles, the filtration pressure drop rises to preset value (usually 50 Kpa). The control system triggers the cleaning sequences. Open the back- flushing valve A and the auxiliary back-flushing pump. The gear motor drives the reciprocating scanner at the same time. The dual-channel back-flushing tube moves helically and cleans the screen inside with suction nozzles. The differential pressure = outlet pressure - back-flushing outlet A pressure. The outside filtrate reverse flow passes the screen and injects into the group A suction nozzle inside.