Broad Crested Weir
Product Code : EL-EFFCA-11070
Quick Answer: Broad Crested Weir is a cuboid PVC weir body with a sharp edge, supplied with 2 additional elements that fix to it to form rounded edges. It is used in the experimental flume to show free and submerged overfall and the effect of the crest shape on the nappe.
Last updated: October 2026
Key Features
- Cuboid weir body with sharp edges
- 2 additional elements for rounded edges
- Weir body with sealing lips
- PVC body
- Free and submerged overfall clearly demonstrated
Technical Specifications
| Specification | Value |
|---|---|
| Material (body) | PVC |
| Weir body (L x W x H) | 260 x 96 x 120 mm |
| Element for rounded edges (L x W x H) | 40 x 86 x 120 mm |
| Weight | Approx. 5 kg |
About This Product
Students compare a sharp-edged and a rounded weir crest and see how each changes the nappe during free and submerged overfall. Used together with a level gauge, the weir allows determination of the discharge coefficient and the discharge, and comparison of theoretical with measured discharge. This EXPERIMENTAL FLUME FLOW CHANNEL APPARATUS weir covers both contours with a single body and its add-on elements.
Frequently Asked Questions
Q1. How are rounded edges created on the broad crested weir?
Two additional elements are fixed to the weir body to turn its sharp edge into a rounded edge.
Q2. What is needed to determine the discharge coefficient?
The weir is used together with a level gauge to determine the discharge coefficient and the discharge, and to compare theoretical and measured discharge.
Questions about the Broad Crested Weir? Write to Lab Equipments Ambala.
