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Self Regulating Siphon
Self Regulating Siphon (Product Code: SLE/EFM/16) is a clear acrylic hydraulic model that shows a siphon adjusting its own discharge over a wide range while holding the upstream water level almost constant. Unlike a simple siphon that runs either full or not at all, this one passes a mixture of air and water, which is the key to its self-regulating behaviour. The model helps civil and water-resources engineering students understand siphon spillways used for level control, and it is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, as part of its vocational training and engineering lab equipment.
Key Details
| Parameter | Detail |
|---|---|
| Type | Self-regulating siphon model |
| Material | Clear acrylic |
| Function | Adjusts its discharge automatically over a wide range |
| Upstream level | Kept mostly constant as discharge changes |
| Flow through siphon | Mixture of air and water |
| Suitable for | Open-channel hydraulics teaching and demonstration |
Typical Use
In a demonstration, the inflow to the model is raised in steps while students watch the siphon barrel through the transparent walls. At modest flows the siphon draws in air along with the water; as inflow increases, less air enters and more water passes, so the discharge rises while the upstream level barely moves. Recording the upstream level against discharge produces a remarkably flat curve, which students then compare with the steep level–discharge relationship of an ordinary weir or gate.
The model links neatly to real practice in canal and reservoir design, where siphon spillways protect structures from over-topping without moving parts. Fit it level and watertight in your channel, change flow slowly so each condition can settle, and rinse the acrylic with clean water after use. The mounting arrangement depends on your channel, so confirm fitting details with us before ordering.
Manufacturer
ScienceLab is the product brand of Jain Scientific Equipments Private Limited, an Ambala, Haryana company that builds hydraulics models for technical education. For tender and vendor registration, our details are GSTIN 06AAECJ8618A1ZT and LEI 3358004HRD1JIVXKYX49. The company profile page gives a fuller picture of the business.
Related Fluid Mechanics Equipment
Channel models used in the same series of open-channel experiments:
- Meter Flume — a recirculating laboratory flume to host channel models; confirm fitting with us
- Sluice Gate with Tappings — a gated control structure to contrast with siphon regulation
- Energy Dissipation — studies what happens to high-energy flow below spillway structures
- Culvert — another clear model showing how flow type changes with water level
Explore the wider Fluid Mechanics range.
Frequently Asked Questions
What makes this siphon “self-regulating”?
It passes a mixture of air and water, so its discharge adjusts automatically over a wide range while the upstream water level stays mostly constant.
Can students see what happens inside?
Yes. The model is clear acrylic, so the air–water mixture in the siphon is visible throughout the test.
Does it include a water supply or channel?
No supply or channel is listed with the model. Send us details of your flume or channel through the contact page and we will advise on fitting.
What size is the model?
Dimensions are not given in our current product details; ask us for a drawing before ordering.
How should the acrylic be cleaned?
Use clean water and a soft cloth; avoid solvents and abrasive cleaners, which can scratch or craze the surface.
Can you supply it for tenders or overseas orders?
Yes. We quote for institutional tenders and ship to India and international markets; include your quantity and destination.
Request a Quote
To price the Self Regulating Siphon, contact us or add it to your enquiry cart along with any other channel models you need.
Last updated: 24 September 2026
