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KD34 Adjustable Overflow Weir

The adjustable overflow weir KD34 is designed for controlling the inlet volume in inlet structures and distributor structures. It may also be used in outlet structures and in sand traps to control the water level and in grease traps to remove grease from the surface of the water.

The adjustable overflow weir is placed between two side plates. Rubber sealing strips ensure that the weir fits tightly to the side plates. These side plates may be supplied with heating units preventing the tilting plate from freezing in the winter.

The weir is adjusted by means of a vertical spindle and a worm gear motor. Lubrication for the spindle is led up to the control box through hoses for easy access. The gear motor that controls the tilting plate features a built-in end stop and a trip switch for automatic operation. The gear motor also features a hand wheel for manual operation.

The adjustable overflow weir is supplied with a separate control box which is provided with switches for local/remote control and manual operation. The control box can be wall-mounted for easy access. Bracket and tilting plate are made of hot-galvanised steel as standard. Side plates and the spindle protective casing are made of stainless steel.

The weir is available in two variations

  • Model A - installed in through cast in situ (Component images).
  • Model B - installed on girder.
  • Gear motor make: Auma Actuator

    Sealing strips: EPDM rubber


  • Gear with position indicator
  • Heating units
  • Scum baffle
  • The adjustable weir can also be delivered in a manually operated version.

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