Scumboard RW-T-F, RW-T-RS, RW-T-VS

Scumboards hold back solid or liquid floating solids in the upstream water Scumboard, fixed installation [RW-T-F] · Scumboard, radial floating action [RW-T-RS] · Scumboard, vertical floating action [RW-T-VS]

operational area | usage

  • Stormwater tank
  • Combined wastewater tank
  • Sewer storage capacity
  • Flow-dividing structures
  • Pumping stations
  • Inlet structures
  • Open bodies of water
  • Wastewater treatment plants
  • Industrial facilities

product description

The vertical “shields” of the scumboards in the water largely retain solid or liquid floating solids in the upstream water. This also includes that, taking into account the flow velocity and overflow water quantity, the projections above the upstream water level and the immersion depth and distances from the sill and bottom are optimised. Secure retention of floating solids can be subject to restrictions if strong currents, turbulence, suspended substances in the “middle water” and in addition fluctuations in the water level occur in the upstream water. These risks can be reduced by selecting suitable scumboard types (e.g. T-RS or T-VS). The T-RS and T-VS type scumboards have the significant functional advantage that their protrusions above the water level and their immersion depths always remain constant even if the water level changes Compared to the T-F, it is not possible for floating solids to “swim under”. Accordingly we recommend that type T-F mainly be used for situations with permanent pondage.

constructional features

  • Scumboards are elements made of stainless steel or GRP
  • Optimised use of materials
  • Variable types of fixings and bearings
  • Possible coupled segment design
  • Available overall lengths around 0.5–25 m or by arrangement
  • Easily combined with adjustable sharpedged weir crests


  • Good floating solids retention
  • Minimum maintenance requirement
  • Easily combined with adjustable weir crests
  • Possible use on curved sills
  • Retrofittable
  • Cost-effective solution


Datasheet scumboard

contact person

Holger Wünsch
Product manager

With the usage of this website you agree to the usage cookies. Further information you will get in our general business terms and the data protection regulations