Bernoullis Theorem Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-FML-7384
Jlab Export is a leading Bernoullis Theorem Apparatus Manufacturer,and suppliers in India
Bernoullis Theorem Apparatus (code EL-FML-7384) is a self-contained water re-circulating bench for verifying Bernoulli’s theorem on a one-piece acrylic test section with convergent and divergent sections. Seven PU piezometer tubes read the pressure head at tappings along the duct, a sump tank and centrifugal pump keep the water moving, and the flow rate is measured with a measuring tank and stopwatch. JLab manufactures this convergent–divergent Bernoulli bench in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Test section | Acrylic, one piece, with convergent and divergent sections |
| Piezometer tubes | PU tubes, 7 nos. |
| Water circulation | ½ HP centrifugal pump |
| Flow measurement | Measuring tank with piezometer, 25 litres; electronic stopwatch |
| Sump tank | 70 litres |
| Inlet tank | 20 litres |
| Tank material | Stainless steel |
| Control panel | On/off switch, mains indicator |
| Quality check | Each Bernoulli apparatus is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 1 unit |
| Dispatch time | Usually 14–18 working days |
| Product code | EL-FML-7384 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What the Piezometer Readings Show
Bernoulli’s equation states that p/ρg + v²/2g + z stays constant along a streamline in steady, ideal flow, the three terms being the pressure, velocity and datum heads. Each piezometer gives the pressure head p/ρg at its tapping, and the velocity head follows from the measured discharge Q divided by the local cross-section area. Where the duct converges the area falls, velocity rises and the piezometer level drops; in the divergent part the velocity falls and pressure head is regained.
Plotting Total Energy Against Distance
Adding the pressure, velocity and datum heads at every tapping gives the total head, which is plotted against distance along the test section. For ideal flow the line would be level; the small fall found in practice, mostly in the diverging part, is the friction and expansion loss that the ideal theorem leaves out. Repeating the run at different flow rates shows how these losses grow with velocity.
Benches That Apply the Energy Equation
- Venturimeter and Orificemeter Calibration Set-Up — uses the same energy and continuity relations to meter pipe flow.
- Pitot Static Tube Set-Up — turns a stagnation-to-static head difference into point velocity in a pipe.
- Friction in Pipe Lines Apparatus — measures the friction head loss that ideal flow ignores.
The apparatus is part of the Fluid Mechanics Lab group within Fluid Mechanics and Hydraulics Lab Equipment.
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Last updated: 30 October 2026
