RF-B-FD-A7-68

Filter belt for sludge dewatering in wastewater treatment plants

RF-B-FD-A7-68 Filter Belt: High-Performance Dewatering Belt for Wastewater Treatment Plants

Robust Filtration Belt for Belt and Drum Thickeners

The RF-B-FD-A7-68 filter belt is engineered for efficient sludge dewatering in municipal and industrial wastewater treatment plants. Designed for use on belt thickeners and drum thickeners, this belt combines high flow rates with strong mechanical stability to deliver reliable thickening and filtration performance. Its Twill structure and optimized aperture design make it ideal for continuous operation in demanding sludge treatment environments.

Key Features and Benefits of the RF-B-FD-A7-68 Filter Belt

  • Twill Weave for Controlled Filtration and Strength:
    The Twill weave provides improved particle retention and a stable textile structure that offers superior resistance to deformation, mechanical stress and bending.

  • Optimized Aperture Structure for Efficient Dewatering:
    The asymmetric aperture size of 1100 × 590 µm ensures a balance between effective drainage and reliable solids retention — ideal for primary and biological sludge on thickening equipment.

  • High Flow Rate for Faster Thickening Cycles:
    With an air permeability of 5,509 l/m²/s, the RF-B-FD-A7-68 supports rapid water removal, increasing throughput and improving the efficiency of downstream dewatering systems such as belt filter presses.

  • High Mechanical Stability and Crease Resistance:
    Designed for continuous operation, this belt maintains its shape and performance even under high loading, repeated flexing and constant moisture exposure — helping prevent premature wear and belt deformation.

  • Durable PET Construction:
    Made entirely from Polyester (PET) warp and weft, the belt provides excellent service life, chemical resistance and dimensional stability in challenging wastewater environments.

  • Stock Availability up to 3.2 m Width:
    The RF-B-FD-A7-68 is often available from stock in widths up to 3.2 meters, ensuring fast replacement when plant uptime is critical.

  • Flexible Seam Options:
    This model can be supplied with:
    Stainless steel Clipper seam
    Pin seam
    Woven endless seam
    ensuring full compatibility with a wide range of thickening systems.

Why Choose the RF-B-FD-A7-68 for Your Sludge Dewatering Process?

The RF-B-FD-A7-68 is the ideal filter belt for wastewater treatment facilities that require a durable, high-flow and crease-resistant textile for efficient sludge thickening. Its Twill weave, optimized aperture size and consistent mechanical stability ensure reliable performance across both belt and drum thickening systems.


Not Sure If This Is the Right Belt for Your Application?

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FilterBelt RF-B-FD-A7-68_4 Slude dewatering waste water treatment

 RF-B-FD-A7-68 – technical data

 

WeaveTwill
WarpPET
WeftPET
Aperture (μm x μm)1100 x 590
Air permeability l/m²/s (200 Pa)5509
Air permeability CFM (125 Pa)680
Weight (g/m²)1133

Availability:

Our filter belts are usually in stock up to a width of 3.2 m
and can be obtained with the following available seams:

  • Stainless steel clipper
  • Pin Seam
  • Woven (endless belt)

Arrange a call

Please feel free to send me a message. Either directly by
e-mail or add me to your network on LinkedIn and contact me there. I look forward to meeting you and talking to you about solving your problems.

R+F Filterelements GmbH_Christopher Franke_Ansprechpartner
Address

R+F FilterElements GmbH
Wollenweberstraße 25
31134 Hildesheim
Germany

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