Automatic Backwash Disc Filter for Irrigation or Industrial Water Purifier

Model Number: 3" Brand Name: Duoling Key Specifications/Special Features: Materials: PA6 housing, PP disc, SS304 spring/or all plastic (for sea water)Micron (um): 10, 20, 30, 50, 80, 100, 120, 200, 300, 400, 500, 600, 800umColors: black or transparent (housing)Connection types: Victaulic coupling type, threaded or flanged

Working principle of filtration state:
Water to be treated comes from the inlet port into the surface of the disc cartridge

Since discs are tightly pressed by the spring on the top of the filter cartridge, with the water going through the outside into the inside of the disc cartridge, the impurity will be trap pad on the intersection of discs

After that the clean water comes out from inside of the filter to the outlet port

Working principle of backwash state:

When the pressure difference reaches the setting value or the system reaches the setting time, the system will automatically enter the backwash mode

PLC controls valve and changes the water flow direction

Backwash water comes from the outlet port, and closes the one-way diaphragm on the bottom of the disc cartridge

Then the backwash water can only go through from nozzle channels on the interior center of the cartridge

High pressure of the nozzle channels tightens the spring and loses discs, meanwhile the backwash water squirts out from the channel along the tangent direction of discs and rotates and separates discs evenly, taking the impurities away from the discs

After backwash state, water flow direction changes and discs are pressed again and the filter will enter filtration state