RF-B-S-F

Filter belt for sludge thickening

RF-B-S-F Filter Belt: High-Flow Spiral Belt for Efficient Sludge Thickening

Optimized Performance for Gravity Belt Thickeners

The RF-B-S-F filter belt is a standard spiral belt engineered specifically for sludge thickening on industrial belt thickeners. Designed to deliver high drainage capacity and consistent thickening performance, this belt is ideal for municipal and industrial wastewater treatment plants that require stable, energy-efficient solids concentration before dewatering.

Key Features and Benefits of the RF-B-S-F Filter Belt

  • High-Flow Spiral Construction for Rapid Drainage:
    Featuring a 3 round filler spiral weave, the RF-B-S-F offers extremely high air permeability values of 5,200–5,600 l/m²/s, making it perfectly suited for gravity-based thickening processes. This ensures fast water removal and a stable thickened sludge layer.

  • Reliable Performance in Continuous Operation:
    Spiral belts are known for their dimensional stability and resistance to deformation. The RF-B-S-F maintains consistent belt tracking and structure, even under long-term operation on gravity thickeners.

  • Durable PET Design:
    Manufactured from high‑quality Polyester (PET) in both warp and weft, the RF-B-S-F provides excellent wear resistance and longevity, even under conditions of continuous wet operation.

  • Efficient Sludge Thickening for Enhanced Downstream Dewatering:
    By producing a more concentrated sludge, this filter belt reduces the load on downstream belt filter presses or centrifuges, improving overall plant efficiency and reducing operating costs.

  • Available with Multiple Seam Options:
    To ensure compatibility with your equipment, the RF-B-S-F can be supplied with different seam configurations (details available upon request).

Why Choose the RF-B-S-F for Your Gravity Thickener?

If your process relies on stable, high-throughput sludge thickening, the RF-B-S-F is the ideal technical textile. Its robust spiral design, extremely high drainage capacity and reliable performance make it a leading choice for wastewater treatment facilities aiming to optimize thickening results and reduce downstream energy consumption.


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RF-B-S-F_technical fabrics_FilterBelt_waste water treatment_filtration_filter press_filter belt

RF-B-S-F – technical data

 

Weave3 round fillers
WarpPET
WeftPET
Air permeability l/m²/s (200 Pa)5200-5600
Air permeability CFM (125 Pa)650-700
Weight (g/m²)1690

Availability:

Our filter belts are available on request and can be
supplied with the following seams:

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R+F Filterelements GmbH_Christopher Franke_Ansprechpartner
Address

R+F FilterElements GmbH
Wollenweberstraße 25
31134 Hildesheim
Germany

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