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AFR Series

Eaton Automatic Self-Cleaning Filters and Strainers

High performance and high volume

Picture of an AFR Series tubular backwashing filter.

  Models

Technical Specifications

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  AFR-8-4 AFR-8-6
Pressure Rating
psi (bar)
250 (17.2)
Volumetric Capacity
(gallons, per body tube)
4 4.8
Single Unit Weight1
lbs (kg)
1,100 (499) 1,300 (590)
Air Requirement 60-120 psi (4.1-8.3 bar) at 5 cfm, for sequencing
Electrical Requirement 110/220 V, 50/60 Hz, single phase
I/O Connections 8" ANSI or 200 mm DIN flanged.
Drain 3" (80mm) weld stub.
Process Parameters Temperature 300 °F (149 °C) maximum (determined by screen material and elastomer seals).
Operating Pressure Up to 250 psi (17 bar).
Elastomer Seals Standard: Buna-N® (180 °F [82 °C] max).
Optional: Nordel™ (230 °F [110 °C] max); Viton® (300 °F [149 °C] max).
Housing/Wetted Parts Materials Standard: 316 stainless steel.
Optional: Wide range available; consult your mdi sales representative.
Frame Material Standard: Painted carbon steel.
Optional: 304 stainless steel.
Automation Standard: Choice of programmable logic controller (PLC) or semi-automatic.
Optional: Wide range available; ask your mdi sales representative for more information.

1 Weights are approximate and assume eight filled stations.

  Features

Features/Benefits

  • Solids removal from 1 to 1,700 microns.
  • Flow rates up to 2,000 gpm (454 m3/hr).
  • Broad selection of filter medium 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 medium cleaning while continuing to deliver filtered product downstream.
  • Available ACCUFLUX™ medium 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.
  • A single AFR Series filter can replace a 13- station multiplexed system.
  • For even higher flow rates, AFR Series filters can be easily combined.

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 ideal for high volume, low viscosity applications with retentions as low as 2 microns.

Options

  • Medium-cleaning diffusers for more effective cleaning with low operating pressures or volumes.
  • Drain header trap.
  • Isolation butterfly valves for individual body tube removal while filter is in operation.
  • Hinge-lock quick couplings.
  • 304 stainless steel frame material.

Applications

  • City water lines
  • Hot condensate
  • Chiller water
  • Fresh water
  • Whitewater / Shower water
  • CIP fluids
  • Papermaking wet end
  • Starch
  • Pelletizer water
  • Single and duo tubular filters for a wide range of applications up to 1000 psi and high viscosity applications

  Dimensions

CAD drawing showing the dimensions of an AFR Series filter.

Dimensions

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  AFR-8-4 AFR-8-6
Body I/O Size
in (mm)
3 (76.2) 3 (76.2)
I/O header Size1
in (mm)
8 (203.2) 8 (203.2)
Body Diameter
in (mm)
4 (101.8) 6 (152.4)
Screen Length
in (mm)
36 (914.4) 36 (914.4)
Element Styles Available2
in (mm)
32.4 (82.8) dia. single, Tri-Cluster, Accuflux-7 5-Cluster, 7-Cluster, Accuflux-15

1 Drain connection is 3" (76.2 mm) weld stub.
2 Consult medium availability chart for specific retentions and types available.

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