Bernoulli Theorem Demonstration Module
Product Code : EL-FMLE-10649
Bernoulli Theorem Demonstration Module (code EL-FMLE-10649) is a bench-top module, used on a Hydraulics Bench, to demonstrate and verify Bernoulli's theorem along a transparent Venturi-shaped conduit. Static pressure taps along the truncated-cone section feed an eight-tube manometer board reading 0 to 300 mm of water, a Pitot probe traverses the conduit for the total head, and removable ends let the section run convergent or divergent. The upstream diameter of the throat is 25 mm, with narrowing angles of 21° downstream and 10° upstream.
Get a quote: use the Add To Cart enquiry button below, or send your quantity and delivery location through the contact page.
Specifications
| Parameter | Detail |
|---|---|
| Use | Demonstrating and verifying Bernoulli's theorem |
| Test section | Transparent circular-section conduit shaped as a truncated cone; Venturi section machined from clear acrylic |
| Static pressure taps | Taps measuring the static pressure of each section simultaneously, all connected to the manometer |
| Manometer board | 8 tubes, range 0 to 300 mm of water, with a water collector (water may be pressurised) |
| Flow direction | Removable conduit ends allow the section to be placed in convergent or divergent form with respect to the stream |
| Total head probe | Pitot tube probe moving along the conduit to measure the height at every section (dynamic pressure) |
| Flow control | Control valve at the end of the module to adjust the flow rate and pressure |
| Outlet | Flexible hose on the outlet pipe directed to the volumetric measuring tank |
| Mounting | Placed on the Hydraulics Bench top, with adjustable legs for levelling |
| Inlet connection | Inlet pipe ending in a female coupling for direct connection to the bench supply; quick-release fitting and built-in quick coupling system |
| Water supply | Hydraulics Bench or Basic Hydraulic Feed System |
| Structure | Anodized aluminium/MS powder coated structure and panel of painted steel |
| Upstream diameter of the throat | 25 mm |
| Experiments | Determination of the exact section in the Venturi tube; demonstration of Bernoulli's theorem; determination of the Bernoulli's theorem equation; convergent and divergent positions and the differences between them |
| Narrowing | |
| Downstream | 21° |
| Upstream | 10° |
| Supply | |
| Product code | EL-FMLE-10649 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Is the Bernoulli Theorem Demonstration Module Used For?
Bernoulli's theorem states that, along a streamline in steady flow, the sum of pressure head, velocity head and elevation stays constant, so static pressure falls where the flow speeds up through a narrowing. With the module levelled on the bench top and coupled to the supply, students set a flow with the outlet control valve, read the static head at each tapping on the manometer board and move the Pitot probe to read the total head at the same sections. Collecting the outlet flow in the volumetric tank gives the flow rate, and the run is repeated with the conduit reversed to compare convergent and divergent flow.
What to Specify When Ordering
- Quantity — the number of modules required.
- Water supply — whether the module will run from a Hydraulics Bench or a Basic Hydraulic Feed System.
Frequently Asked Questions
What does the module demonstrate?
It demonstrates and verifies Bernoulli's theorem by showing how static pressure changes along a transparent, truncated-cone Venturi conduit, and how convergent and divergent flow differ from each other.
How are static and total head measured?
Static pressure taps along the conduit are read together on an eight-tube manometer board with a 0 to 300 mm water range, while a Pitot tube probe moved along the conduit gives the total head at each section.
Can the flow direction through the Venturi be reversed?
Yes. The conduit ends are removable, so the section can be fitted in convergent or divergent form with respect to the stream when the two cases are to be compared.
How is it connected to the water supply?
It stands on the Hydraulics Bench top on adjustable levelling legs, and its inlet pipe ends in a female coupling that connects straight to the bench supply. A Basic Hydraulic Feed System can be used instead.
What sets the flow rate during a test?
A control valve at the end of the module sets the flow rate and the pressure in the conduit, and a flexible hose carries the outlet flow to the volumetric measuring tank.
What are the Venturi dimensions?
The upstream diameter of the throat is 25 mm, and the section narrows at 21° on the downstream side and 10° on the upstream side. It is machined from clear acrylic.
OEM Manufacturer
Buyers of the Bernoulli Theorem Demonstration Module deal directly with its maker, Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd), whose works are at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests fluid mechanics apparatus for flow measurement, pipe friction, pumps and hydrostatics, supplies engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and builds to institution-specific requirements on request. Tender details are on the Tenders/OEM page.
Related Fluid Mechanics Equipment
- Orifice and Venturi Meter Demonstration — bench unit pairing Venturi and orifice plate with a 2 to 30 l/min flow meter for Cd tests.
- Flow Meter Demonstration Unit — transparent Venturi, orifice plate and variable area meter set with 8-tube manometer for bench flow studies.
- Pitot Tube Apparatus — traversing Pitot static tube in a 32 mm transparent pipe with pressurised water manometer for velocity profiles.
- Energy Losses in Pipes — ten-section pipe friction trainer with copper, steel and PVC pipes, bends, valves and differential pressure meter.
See the full Fluid Mechanics Lab Equipment range or all Mechanical Engineering Lab Equipment.
Request a Quote
For this and other fluid mechanics lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. Quotations are given on request: send the number of modules and whether they will run from a Hydraulics Bench or a Basic Hydraulic Feed System and your delivery location through the contact page, or add the Bernoulli Theorem Demonstration Module to the enquiry cart from this page.
Last updated: October 2026
