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Product Overview

KD 34 Adjustable Overflow Weir

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The adjustable overflow weir KD 34 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 (see sketch/Component Images ).
Model B – installed on girder.

Gear motor make: Auma Actuator
Sealing strips: EPDM rubber


The adjustable weir can also be delivered in a manually operated version.

Component Images


Type KD34-1000 KD34-2000 KD34-2500 KD34-4000 KD34-5000
Length(mm) 1000 2000 2500 4000 5000
B (mm) 2270 2270 2270 2270 2270
C (mm) 500 500 500 500 500
D (mm) 750 750 750 750 750
Weight (kg) 180 240 270 360 410
Power (kW) 0.37 0.37 0.37 0.37 0.75
AUMA type SA07.5 SA07.5 SA07.5 SA10.1 SA10.1
R/min 32 32 32 32 32
Power, heating elements: 2 x 0,21 kW