Rotorflush - Model RF400AR-E - Strainer with Backwash Pump
From Filters with Backwash Pump
The RF400AR-E Stainers with backwash pump are self-cleaning intake filters for attachment to the suction hose of surface mounted pumps. These filters can be fitted with nylon or stainless steel mesh and are the same as the RF400AR strainers but with one difference. The filters have a separate motor to drive their internal self-cleaning backwash, so that the cleaning mechanism is driven independently of the surface mounted pump - they have their own integral backwash pump to keep the filter mesh clear. This allows you to vary the output of your pump without affecting the performance of the backwash in the filter – useful if you have a variable speed drive on your pump. These filters and strainers will deliver up to 1000 litres / minute of filtered output from 50 microns to 6mm.
Description
The Rotorflush RF400AR-E self-cleaning strainer with backwash pump provides suction intake protection for surface mounted pumps and other connected equipment. These are our successful RF400AR filters built with an internal self-cleaning backwash pump to keep the filter mesh free from debris even if the output of your surface mounted pump varies.
These are stainless steel dirty water suction intake filters with a capacity of up to 1000 litres / minute (60 m3 per hour), capable of filtering from 60 microns to 6mm.
RF400AR-E filters are powered by a small submersible pump to drive their internal self-cleaning backwash, so that the cleaning mechanism is driven independently of your surface mounted pump. They can be used where the pump output is variable without compromising the filter’s backwash. The motor continuously backwashes the mesh screen blowing away anything that might cause it to block, whether your pump is pumping a low or high volume of water.
The RF400AR-E strainer with backwash pump offers both fine and coarse self-cleaning filtration. It is available with replaceable nylon mesh inserts or stainless steel top mesh for fine filtration (up to 315 microns); on average nylon mesh inserts need replacing every 5000 hours continuous use for 300 micron mesh, and every 1000 – 2000 hours continuous use for 60 and 115 micron mesh. These maintenance intervals will of course vary according to water conditions.
The RF400AR-E can also be fitted with fine stainless steel filter mesh, and needs jet washing at similar intervals. For coarse filtration and compliance with EU Eel and Elver regulations, 1, 2, 3 or 6mm stainless steel filter meshes are available.
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 filter mesh debris in the water will not obstruct the mechanism, or affect the backwash pump.
For a larger capacities our RF600AR self-cleaning filters deliver up to 4,500 litres per minute, and we can custom build larger self-cleaning filters to your specifications. For smaller capacities see our RF200 ranges of filters.
Key Features
- Nylon or stainless steel filter mesh
- Filter sizes from 50 microns to 6mm
- High reliability and easy to install and use
- Works with most centrifugal and progressive cavity pumps
- Continuous backwash keeps filter mesh clear
- Ideal for variable speed pumps
- 60 cubic metres per hour maximum flow
- Reduced capital, installation and maintenance costs
- All Stainless Steel construction
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