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The RF200A and RF200AS self-cleaning pump intake filters provide protection against blockage for surface mounted pumps and other connected equipment. These are stainless steel dirty water suction strainers with a capacity of up to 220 litres / minute (14 m3per hour), capable of filtering from 60 microns.
The RF200A filter can be fitted with replaceable nylon mesh inserts; on average nylon mesh inserts need replacing every 5000 hours continuous use for 300 micron mesh, and 1000 – 2000 hours continuous use for 60 and 115 micron mesh, although these maintenance intervals will vary according to water conditions.
The RF200AS can be fitted with stainless steel filter mesh and needs jet washing at similar intervals.
These filters use a proportion of the pump’s output to supply a feed to an internal backwashing rotor. This supply is taken off the already filtered pump output. The twin jets of the cleaning rotor rotate at about 60 rpm in each filter, clearing the whole screen every ½ second. As the cleaning mechanism is on the filtered side of the screen debris in the water will not obstruct the mechanism. Approximately 20 -25% of the pump output is required to supply the cleaning rotor.
For a larger capacities please consider our RF400 for up to 1000 liters per minute or the RF600 series (1500-5000 LPM) self-cleaning filter. All our filters and strainers use the same patented technology, providing efficient self-cleaning backwash to keep the filter mesh clear for a range of flow rates.