Plastic Automatic Filter PD-HF

GENERAL SPECIFICATION

▪️Body Material                               :  PA6GFR30

▪️Screen Material (Internal kit)         : SS304L, PA6GFR30

▪️Maximum Working Pressure           : 8 bar ; 116Psi

▪️Minimum Working Pressure            : 2 bar ; 29Psi

▪️Maximum Working Temperature     : 60°C ; 140°F

▪️Back Wash Time                           : Time and Pressure Difference Setup

▪️Control System                            : Electronic (AC/DC)     

▪️Filtration Sensitivity                     : 20-2000 µ (micron)

CLEANING PROCESS

The backwash sequence is triggered for an individual filter unit by either a preset pressure differential or a time interval. Upon activation, the control unit opens the discharge valve of the designated unit. Exposing this valve to atmospheric pressure creates a significant pressure drop, inducing a powerful reverse flow. This reverse flow drives a hydraulic turbine, which rotates the cleaning collector while a piston moves it linearly. The collector's nozzles generate high-velocity suction, vacuuming accumulated debris from the inner screen and expelling it through the drainage pipe. This combined helical motion ensures a systematic and thorough cleaning of the entire screen surface. During the backwash process, both sides of the double-body filter continue filtering simultaneously-only a temporary pressure drop is observed. The cleaning sequence is then performed sequentially for each side of the double-body unit. Once complete, the discharge valve closes and the collector returns to its home position, concluding the cycle for that unit, Throughout this self-cleaning process, system filtration continues uninterrupted. 

WORKING PRINCIPLE

Water enters the filter and passes sequentially through a coarse and then a fine screen. As contaminants accumulate on the inner surface of the fine screen, a pressure differential is created between the inlet and outlet, A backwash cycle is automatically initiated based on one of two conditions: when this pressure differential reaches a predetermined setpoint, or after a preset time interval has elapsed, whichever occurs first.