Liquid Level Apparatus
Product Code : EL-POM-10371
Quick answer: The liquid level apparatus demonstrates the principle of communicating vessels: liquid poured into connected tubes settles at the same level in every tube, whatever their shape. It has four differently shaped glass tubes joined at the bottom and mounted on a bakelite stand. Lab Exports manufactures it in Delhi for schools, colleges and universities.
Specifications
| Item | Specification |
|---|---|
| Tubes | Four glass tubes, each of a different shape |
| Connection | Joined at the bottom |
| Stand | Bakelite |
| Principle shown | Communicating vessels: liquid stands at the same level in all tubes |
How the liquid level experiment is done
At any horizontal level in a connected body of still liquid the pressure must be the same, otherwise the liquid would flow. Pressure depends only on the depth below the free surface, p = rho g h, so the free surfaces in all the tubes must lie at the same height. The shape and width of each tube, and so the amount of liquid it holds, make no difference.
- Stand the apparatus on a level bench.
- Pour coloured water slowly into any one of the four tubes.
- Watch the liquid rise in all the tubes together.
- When the liquid comes to rest, compare the levels against a ruler or a horizontal line on the board.
Students see that a wide tube and a narrow or oddly shaped tube fill to the same height. The same principle explains why an overhead tank can supply taps on lower floors, why a builder's water level works, and how a U-tube manometer reads pressure.
Key features
- Four glass tubes of different shapes for a clear side-by-side comparison
- Tubes joined at the bottom so the liquid flows freely between them
- Bakelite stand that holds the tubes upright
- Works with plain or coloured water, with no measurement needed to see the result
- Short demonstration that fits into a single lesson on hydrostatics
Documentation and supply
Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the liquid level apparatus at its works in Laxmi Nagar, Delhi, and supplies it to schools, colleges and universities in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Properties of Matter products
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- Expansion of Liquid Apparatus (EL-POM-10372)
- Bernoulli Tube Apparatus (EL-POM-10369)
- Charles Law Apparatus (Combined) (EL-POM-10373)
- Simple Pascal Law Experiment (Pressure String) (EL-POM-10368)
- Charles Law Apparatus, Basic (EL-POM-10374)
The full range is in the Properties of Matter section of the Physics Lab range.
Frequently asked questions
What does the liquid level apparatus demonstrate?
It demonstrates that liquid in communicating vessels settles at the same level in every vessel, regardless of the shape of each tube.
How many tubes does it have?
Four glass tubes, each of a different shape, joined at the bottom.
What is the stand made of?
The tubes are mounted on a bakelite stand.
What is the price of the liquid level apparatus?
Prices are not published on the website. Add the liquid level apparatus to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-POM-10371 and the quantity, to receive a quotation.
Does Lab Exports manufacture the liquid level apparatus?
Yes. Lab Exports manufactures the liquid level apparatus at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code EL-POM-10371.
Request a quote
Email [email protected] with the house code EL-POM-10371 and the quantity, or add the liquid level apparatus to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.
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