Cavitation Apparatus Manufacturer,Supplier and Exporter in India
Product Code : EL-HTL-7400
Jlab Export is a leading Cavitation Apparatus Manufacturer,and suppliers in India
Cavitation Apparatus (code EL-HTL-7400) is a closed-circuit water bench for watching cavitation form in an acrylic test section with convergent and divergent parts, and for comparing theoretical and actual pressures when it starts. A centrifugal pump draws from a sump tank, a measuring tank gives the flow, and two pressure gauges read the test-section tappings. JLab builds this acrylic cavitation rig in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Test section | Acrylic, with convergent and divergent sections |
| Pressure measurement | Two pressure gauges on the test-section tappings |
| Flow control | Control valve upstream of the test section; by-pass valve |
| Water circuit | Self-contained closed circuit with sump tank and centrifugal pump |
| Flow measurement | Measuring tank |
| Experiments | Observing cavitation; comparing theoretical and actual pressures at cavitation |
| Quality check | Each cavitation rig 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-HTL-7400 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Low Pressure Produces the Bubbles
Water speeds up as the convergent section narrows, and by Bernoulli’s equation its static pressure falls. Once the local pressure at the narrowest point drops to the vapour pressure of the water at its running temperature, the water boils without being heated and pockets of vapour appear. These bubbles are swept into the divergent section, where the pressure recovers, and there they collapse suddenly. The collapse causes the crackling noise heard on the rig; in pumps, turbines and valves it is what pits metal surfaces. Through the clear acrylic the whole sequence can be watched as the flow is raised.
Predicted and Measured Pressure at the Onset
The upstream control valve and the by-pass bring the flow up in steps until bubbles first show. At that setting the measuring tank gives the discharge Q, and Q divided by each section area gives the local velocity. Bernoulli’s equation then yields the theoretical pressure at the tappings, which is set against the gauge readings. The two differ because of friction losses and because dissolved air comes out of the water slightly before the vapour pressure is reached.
Other Rigs With Convergent-Divergent Sections
- Cavitation Demonstration — clear acrylic venturi section with three Bourdon gauges, run from a hydraulics bench.
- Bernoullis Theorem Apparatus — acrylic convergent and divergent section with pressure tappings and piezometer tubes.
- Discharge Through Venturimeter and Orificemeter — parallel venturimeter and orifice meter lines for finding discharge coefficients.
The rig belongs to the Heat Transfer Lab group under Fluid Mechanics and Hydraulics Lab Equipment.
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Last updated: 30 October 2026
