working principle
Raw water into the filter from the inlet pipe, filtered through the filter from top to bottom, filtered water directly out of the water. Continuous suspension of suspended solids filter, resulting in a gradual increase in the resistance of the filter, when the filter resistance reaches a certain value, then the automatic backwash process. Recoil automatically, do not need to be equipped with a recoil pump, recoil water through the filter from bottom to top, filter backwash, lasted 4-6 minutes. Rebound strength of 12-16 L / m2.s. Filter backwash the end, into the next cycle of work.
The equipment from the water system, water filtration system, water distribution system, recoil system and other components. Filter a total of more than one filter room, each filter room has a separate recoil system, the recoil process by the time control, take turns.
Automatic filter part of the filter: high quality quartz sand filter. The filter backwash strength of 14-16l / s.m2, recoil lasted 4-6min.
The device is a non-electric control filter device, thanks to pre-filtered water gravity pressure and mechanical principle to achieve fully automatic work.

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