Flow Through an Orifice
Product Code : LSK-FM-10471
Flow Through an Orifice (SKU LSK-FM-10471) is an apparatus for measuring how flow, energy and jet area reduce as water discharges from a small orifice under a steady head. It stands on the worktop of the Digital Hydraulic Bench and suits orifice experiments in engineering fluid mechanics courses. Science Lab Supplies manufactures the orifice tank at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and engineering colleges, polytechnics, contractors and distributors can order it straight from the factory.
Specifications
Below, each specification of the single-orifice tank has a row of its own. In short, it is a transparent cylindrical tank with a sharp-edged orifice already mounted in its base; water enters through an adjustable diffuser, an overflow pipe fixes the level, manometers read the heads, and a traversing Pitot tube and sharp blade measure the jet.
| Specification | Value |
|---|---|
| SKU | LSK-FM-10471 |
| Use with | Digital Hydraulic Bench; stands on the bench worktop (separate item) |
| Tank | Transparent cylindrical tank |
| Orifice mounting | In the tank base, for different orifices and orifice shapes |
| Orifice as supplied | Sharp-edged, already mounted |
| Inlet | Adjustable diffuser fed from the hydraulic bench |
| Level control | Flow rate and an overflow pipe set the water level |
| Head measurement | Manometers for total head on the orifice and under the jet |
| Jet velocity | Pitot tube held on a traverse assembly, positioned anywhere in the jet |
| Jet diameter | Sharp blade, for the contraction coefficient |
| Discharge | Into the hydraulic bench measuring tank |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Flow Through an Orifice Apparatus
By comparing measured discharge with the ideal value, and jet velocity and diameter with the orifice size, students find the coefficients of discharge, velocity and contraction at several heads. It fits the orifice and mouthpiece practicals of B.Tech/B.E. civil and mechanical engineering and diploma fluid mechanics labs.
- Coefficient of discharge of a sharp-edged orifice at different heads.
- Coefficient of velocity from Pitot measurements in the jet; the same instrument traverses a pipe on the Pitot Tube flow meter.
- Coefficient of contraction from the jet diameter at the vena contracta.
- Comparing orifice shapes fitted to the base mounting, and contrasting orifices with the rectangular, V and Cipoletti notches of the Notched Weirs set.
Standard Scope of Supply
Each apparatus is supplied with the transparent tank, the sharp-edged orifice already fitted, the adjustable diffuser and overflow pipe, manometers, the traverse assembly with Pitot tube and the sharp-blade jet gauge. The hydraulic bench, whose measuring tank collects the jet for flow measurement, is quoted separately.
Packing, MOQ and Lead Time
Quotes are available from a single apparatus up to a quantity for every bench in the laboratory, with packing, delivery time and price stated for the number you specify. The hydraulic bench and other engineering lab equipment in India can be priced on the same quotation.
Using its Importer-Exporter Code, Science Lab Supplies can ship to buyers in Iraq, Nigeria, Kenya, Ghana, Ethiopia and Tanzania. Requests for extra orifice shapes or a bench can be sent from the contact page or saved as a list in the enquiry cart, while the lab tender page covers institutional tenders.
Frequently Asked Questions
How is the head on the orifice varied?
The inflow and overflow pipe set the water level in the tank. Adjusting the flow to the diffuser raises or lowers the level, which changes the head acting on the orifice.
Can other orifice shapes be tested?
Yes. The tank base has a mounting for different orifices, so students can study other shapes. For the orifices you need beyond the sharp-edged one, send your list through the contact page.
How does it compare with Jet Trajectory and Orifice Flow?
Jet Trajectory and Orifice Flow uses four interchangeable nozzles and adds a horizontal mounting and plotting board for jet paths. This apparatus concentrates on orifice coefficients with a sharp-edged orifice.
Is Science Lab Supplies the manufacturer or a trader?
This orifice apparatus is a factory product of Science Lab Supplies, made in Saha, Ambala, India; enquiries are priced by the manufacturer itself, so no trading company sits between the college and the maker.
Related Orifice and Flow Measurement Equipment
Orifices, notches, nozzles and Venturi meters can all be compared as flow-measuring devices. These items cover the extended jet study, the bench that supplies the water, weir discharge, meter calibration, and two Hydraulics and Pneumatics units for bench-based flow measurement, all on one quotation if needed.
- Jet Trajectory and Orifice Flow — four nozzles of different throat designs plus a jet plotting board.
- Digital Hydraulic Bench — hand-operated valve sets the pump flow; a digital display shows the rate.
- Discharge Over a Notch — V-notch and rectangular weirs used as simple flow regulators.
- Venturi Flowmeter — fits between the adaptors of the Flow Meter Calibration base unit.
- Flow Meter Calibration — nozzle flow meter included, with a hand-pump to offset the manometers.
- Flow Meter Demonstration — orifice plate, Venturi and variable area meter compared in one circuit.
- Hydraulics Bench — self-contained service module; its experiments include flow measurement by orificemeter.
Browse the full Fluid Mechanics range, the Hydraulics and Pneumatics range or all engineering laboratory equipment.
Last updated: 22 October 2026
