Flow Over Weirs
Product Code : JA-FMAHLE-9938
The flow over weirs kit (SKU JA-FMAHLE-9938) is used in the channel of a hydraulics bench top to measure open channel flow with sharp crested weirs. It contains a Thomson weir with a 90° V-notch, a rectangular notch weir, an inlet nozzle, a stilling baffle and a Vernier hook and point gauge on a movable carrier. It is supplied by JaincoLab for flow over weirs practicals in engineering colleges and polytechnics.
Specifications
The flow over weirs kit has self-sealing PVC weir panels 230 x 185 x 8 mm, a Thomson weir with a 90° notch, a rectangular weir with a 60 x 50 mm notch and a level gauge with a 0 to 200 mm measuring range; it weighs about 2 kg.
| Product | Flow Over Weirs |
| SKU | JA-FMAHLE-9938 |
| Weir panels | Self-sealing, PVC, 230 x 185 x 8 mm, with captive studs |
| Thomson weir | V-notch, angle 90° |
| Rectangular weir | Notch 60 mm wide x 50 mm high |
| Level gauge | Vernier hook and point gauge on an instrument carrier, range 0 to 200 mm |
| Flow conditioning | Inlet nozzle and stilling baffle |
| Mounting | Weir carrier in the hydraulics bench channel, weirs clamped by thumb nuts |
| Dimensions | 290 x 190 x 290 mm (L x W x H) |
| Weight | Approx. 2 kg |
Experiments with the flow over weirs kit
The flow over weirs kit lets students set a steady flow, measure the head over each notch with the hook and point gauge, compare the discharge with the volumetric measurement on the bench and find the discharge coefficients of the V-notch and rectangular weirs.
- Measuring discharge over a 90° V-notch (Thomson) weir
- Measuring discharge over a rectangular notch weir
- Determining the coefficient of discharge of each weir
- Relating head over the weir to flow rate
- Open channel flow practicals for civil engineering degree and diploma students
Scope of supply and ordering
The listing covers the two sharp crested weir plates, the inlet nozzle, the stilling baffle, the weir carrier and the hook and point gauge on its instrument carrier. A hydraulics bench is not included in the product data. Accessories, spares and quantities are confirmed on the quotation.
MOQ, lead time and packing for the flow over weirs kit are confirmed on each quotation for the quantity and delivery destination. Kits for existing hydraulics benches and complete bench sets for new laboratories are supplied, with export to Africa, the Middle East and South and South-East Asia.
Frequently asked questions
Which weirs are included?
A Thomson weir with a 90° V-notch and a rectangular weir with a 60 x 50 mm notch, both on self-sealing PVC panels of 230 x 185 x 8 mm.
How is the head over the weir measured?
With a Vernier hook and point gauge on an instrument carrier that moves along the channel sides; its measuring range is 0 to 200 mm.
Is a hydraulics bench required?
Yes. The kit is used in the flow channel of a hydraulics bench top, connected through the delivery nozzle; the bench is quoted separately if needed.
Related products
Open channel flow units are listed in the JaincoLab fluid mechanics lab equipment range.
Request a quote
To order the flow over weirs kit, send the quantity and delivery destination through the JaincoLab contact page or email [email protected]. Buying under a laboratory tender? Use our tenders page.
