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AFR Series

The AFR – Series tubular backwash filter is a unique, expandable circular design for increased capacity in a compact one-square-meter footprint. The AFR-Series uses Ronningen-Petter technology for ideal for high volume, low viscosity applications with retentions as low as 2 microns.


High Performance and High Volume

Increased capacity and space saving:

  • Solids removal from 1 to 1,700 microns
  • Flow rates up to 2,000 gpm (454 m3/hr)
  • Broad selection of filter media materials and retentions suitable for a wide range of applications
  • Numerous automated backwash options for operator-free service and minimal backwash effluent (<2% of system volume)
  • Smooth pipe and nozzle connection transitions to avoid dead spots in the fluid stream and minimize pressure drop
  • Isolated top-to-bottom backwash flow for complete and efficient media cleaning while continuing to deliver filtered product downstream
  • Available ACCUFLUX™ media dramatically increases filter surface area in the same footprint
  • Configured with an array of up to eight – 4″ (101.8mm) or 6″; (152.4 mm) body tubes surrounding a central cleaning valve

Cost reduction:

  • A single AFR Series filter can replace a 13- station multiplexed system.
  • For even higher flow rates, AFR Series filters can be easily combined.


Key AFR Tubular Backwashing Filter Markets:

  • Chemicals
  • Ethanol
  • Food and Beverage
  • Manufacturing
  • Oil and Gas
  • Pulp and Paper
  • PetroChem
  • Pharmaceuticals
  • Water


Customer Success Stories


Technical Data Sheets

Product Specs


Installation and Operation Manuals


Since 1892, The Spencer Turbine Company has applied a unique Engineering Edge to create innovative solutions for air and gas handling problems. Today, the world faces extreme challenges in the areas of energy and the environment. They call these issues E2 and are addressing them with our own E2 combination of Engineering and Experience.

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