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Products  |  Fluid Mechanics and Hydrology  |  Hydrology and Hydraulic Engineering  |  HM 163  |  HM 163.31
HM 163.31 Broad Crested Weirs, Set of two Show data sheet (pdf file) Print page
Technical Description
The HM 163.31 experimental set-up included 2 different wide-crested weir bodies either of which can be fitted to the base of the channel. Rectangular cubes made of PVC are used for the weir body. On one of the weirs the edges on the weir crest are chamfered. Tubular seals made of plastic inserted in slots on the side of the weir bodies complete the experimental set-up. The HM 163.54 Base Plate is required for fitting the weir bodies. In practice, wide crested weirs are used as so-called low overfalls.
Learning Objectives / Experiments
· Determination of the coefficient of overflow
· Complete and incomplete overflow:
- Comparison of the surface lines for the two cases
· Burble on a sharp-edged, wide-crested weir





For exact measurement of water levels, the use of the HM 163.52 Hook and Point Gauge on the moving HM 163.59 Instrument Carriage is recommended.
Features
Investigations on underwater weirs
Specification
[1] Fixed underwater weir for fitting to the HM 163 Modular Flow Channel
[2] Only for use with the HM 163.54
[3] Weir body made of PVC, lxwxh 650x404x250mm
[4] 1 weir body with chamfered weir crest, radius 65mm
Technical Data
Weir create top edge radius: 65mm
Dimensions and Weight
l x w x h: 650 x 404 x 250 mm
Weight : approx. 18 kg
Scope of Delivery
2 weir bodies, 1 set of accessories,
1 instruction manual
Order Details
070.16331 HM 163.31 Broad Crested Weirs, Set of two
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© 2005 G.U.N.T. Gerätebau GmbH