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Process belts

Filtration fabric for dewatering FGD gypsum in coal-fired power stations

Flue gas desulphurization

Filter belts made of GKD synthetic fabric are used in vacuum belt filters to dewater the gypsum that accumulates during flue gas desulfurization in coal-fired power stations.

Robust GKD meshes are deployed for the fast and efficient dewatering of FGD gypsum in vacuum belt filters. The VACUBELT® 2015, a solution developed specifically for this application, ensures significantly greater air / water permeability and a filter cake with low residual moisture thanks to its large number of apertures. GKD's VACUBELT® filter belts are manufactured from single ply polyester fabrics and feature a flat hook seam connection.


  • Single ply fabric without multifilament weft wires
  • Easy cleaning of the fabric
  • Good filter cake release
  • High lateral stability of the filter belt
  • Aperture size of 50 µm

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