الوصف

General

The AF**0 Series are cost effective, easy-to-operate, automatic filters with an hydraulic self-cleaning mechanism that doesn’t require an external power source to operate.

With their various screen areas, the “M**0” models support flow rates of ******0 m3/h (*******0 US gpm), with filtration degrees of ***0 down to *5 micron and inlet/outlet diameters from 2”**6”.

The Filtering Process

The filtration process begins when raw water flows through the Filter Inlet into the Coarse Screen.

Here, the water is pre-filtered in order to protect the cleaning mechanism from large debris.

The water then passes through the inner surface of the Fine Screen, dirt particles are trapped and accumulate inside the filter while clean water flows out of the Filter Outlet.

The gradual dirt buildup on the inner screen surface causes a filter cake to develop with a corresponding increase in the differential pressure across the screen’s inner and outer surfaces.

The Self-Cleaning Process

When the differential pressure across the screen reaches a preset value, the filter’s Rinse Controller starts the cleaning cycle. In the piston-less models the Hydraulic Valves are activated where in the piston models the Piston together with the hydraulic valves are activated. This creates a pressure drop in the Motor Chamber and a backflush stream that flows out of the filter to the drain through the Nozzles , the Dirt Collector and the Hydraulic Motor. The vacuum action and spiral motion of the Dirt Collector cleans **0% of the fine screen.