Constant Level Tank
Product Code : LSK-H-11161
Constant Level Tank (SKU LSK-H-11161) is a copper vessel that keeps the water head steady, so water flows at a uniform rate through calorimeters and other heat apparatus even when the pressure in the supply line rises and falls. It is used in B.Sc., engineering and diploma heat labs. Science Lab Supplies fabricates the tank at its Ambala manufacturing unit, Plot 448, HSIIDC Industrial Area, Saha, India, and sells it straight to colleges, schools, contractors and distributors.
Specifications
Size, material and connections of the constant level tank are set out in the table. In summary, it is a 100 x 75 mm copper vessel with separate tubes for water inlet, outlet and overflow; a central overflow tube inside the chamber sets the highest level the water can reach, which keeps the outflow uniform.
| Specification | Value |
|---|---|
| SKU | LSK-H-11161 |
| Vessel material | Copper |
| Vessel size | 100 x 75 mm |
| Inlet | Water inlet tube |
| Outlet | Water outlet tube |
| Overflow | Central overflow tube inside the chamber |
| Level control | Level cannot rise above the overflow tube |
| Function | Uniform water flow regardless of supply-line pressure fluctuations |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Constant Level Tank
The tank sits above the experiment and is fed from the tap; surplus water escapes through the central overflow tube, so the level, and therefore the outflow pressure, stays constant. This steady flow is what continuous-flow calorimetry and water-cooled conduction experiments need for reliable, repeatable readings in a heat lab.
- B.Sc. physics: feeding a steady stream to the Callendar and Barne's Apparatus (Continuous Flow) when measuring the specific heat capacity of water.
- Supplying cooling water at a constant rate to the spiral tube of Searle's Thermal Conductivity Apparatus.
- Engineering and diploma heat-transfer labs: any set-up in which a calorimeter or flow tube needs water at a uniform rate.
- Demonstrating how an overflow keeps a liquid level, and so its pressure head, constant.
Mount the tank higher than the apparatus it feeds, lead the overflow tube to a drain, and set the inlet so that a little water always runs to waste.
Standard Scope of Supply
The tank is supplied as a 100 x 75 mm copper vessel fitted with its water inlet, outlet and central overflow tubes, ready to connect to the supply and to the apparatus it serves. Connecting tubing and a support for mounting it at height can be quoted separately where needed.
Packing, MOQ and Lead Time
Quotations can be prepared for one tank or for a tank on every heat bench, and each one states the packing, delivery time and price for that quantity. The tank can also be priced together with the flow or conduction apparatus it is meant to feed.
Because Science Lab Supplies holds an Importer-Exporter Code, it is able to ship to buyers in Saudi Arabia, Oman, the Philippines, Nepal, Bangladesh and Zambia. Send your requirement through the contact page, drop the tank into the enquiry cart, or see the lab tender page if it forms part of a tender.
Frequently Asked Questions
What does a constant level tank do?
It keeps the water level, and so the pressure head, constant. Water above the overflow level runs away through the central overflow tube, giving a uniform flow through calorimeters or other equipment regardless of changes in supply pressure.
Which experiments need a steady water flow?
Continuous-flow specific heat experiments such as Callendar and Barnes' method, and conductivity experiments in which a stream of water carries heat away, both depend on a steady flow. Any calorimeter fed from a tap benefits from it.
What is the tank made of?
The vessel is made of copper and measures 100 x 75 mm. It has three tubes: one for water inlet, one for outlet and a central overflow tube inside the chamber that sets the maximum water level.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies is the manufacturer; the copper tank is fabricated by its own team in Saha, Ambala. Buying from the maker means questions about connections or quantities are answered by the people who build it.
Related Heat and Liquid Apparatus
These Heat and Properties of Matter items either use flowing or standing water, work with calorimeters, or show how liquid levels and pressure behave, so they make natural companions for a constant level tank and can be priced together with it on one quotation.
- Lee's And Charlton's Apparatus — 4.5 cm deep brass steam chest with steam inlet and outlet tubes.
- Copper Calorimeter Set — outer vessel fitted with a detachable clip-type thermometer support.
- Joule's Calorimeter — two terminals connect to a coil of wire for passing current.
- Water bath, 7 L — stainless steel bath working from 3 °C above ambient to 100 °C.
- Liquid Level Apparatus — four differently shaped glass tubes joined at the bottom on a bakelite stand.
- Overflow Vessel (Eureka Can) — G.I. sheet can with a flared top edge for Archimedes experiments.
- U-Tube Manometer on Stand Table Model — wooden base with a 50 cm scale for pressure readings.
Browse the full Heat range, the Properties of Matter range for liquid and pressure apparatus, or all physics lab equipment.
Last updated: 9 October 2026