active filter United Kingdom

... downwards air flow to aid dust release We install a single filter cartridge in each aperture reducing the number of filter seals present within the filter unit substantially reducing the risk of filter seal failure and dust by pass. With using a single filter element this provides a more active filter cleaning area improving the filter cleaning action. Our single filter cartridge design per access door reduces the risk of dust exposure when withdrawing filter elements. Ease of maintenance with tool less filter cartridge change.

... through the distribution ring. It then flows upward through the downward moving sand bed where the solids are filtered out. The clean filtrate exits the filter through the overflow weir. The continuous reject flow of washing water is discharged through a separate outlet. The dirty sand is continuously removed from the active sand bed thanks to the action of the air-lift pump. This pump draws the contaminated sand from the bottom of the filter body. A mixture of sand, dirty particles and water is transported upward through the air-lift pipe into the washing chamber at the top of the filter.