Capillary Tube Apparatus
Product Code : LSK-PL-10331
Capillary Tube Apparatus (SKU LSK-PL-10331) is a demonstration unit holding six capillary tubes of different bores upright in a water trough, so the class can see at a glance that liquid rises higher in narrower tubes. It supports surface tension and capillarity lessons in Class 11 physics, middle-school science and introductory college practicals. Science Lab Supplies manufactures the unit in Saha, Ambala, India, at Plot 448, HSIIDC Industrial Area, and prices it for schools, colleges, tender contractors and distributors from that factory.
Specifications
Frame, trough and tube details of the six-bore unit are set out in the table. In short, a metal frame holds six capillary tubes of different bores vertically in a trough; each tube is 150 mm long, the frame stands 90 mm high overall, and the water columns settle at clearly different heights once the trough is filled.
| Specification | Value |
|---|---|
| SKU | LSK-PL-10331 |
| Capillary tubes | 6 |
| Tube bores | Each tube of a different bore |
| Tube length | 150 mm |
| Tube position | Held vertically |
| Frame | Metal |
| Overall frame height | 90 mm |
| Trough | Filled with water for the demonstration |
| Demonstrates | Relationship between capillary pressure and bore diameter |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Capillary Tube Apparatus
The apparatus demonstrates capillary action: when the trough is filled with water, the liquid climbs each tube to a height that depends on its bore, and the difference between the columns is immediately clear. Schools planning a capillary tube experiment in India can use it to link surface tension with water rising through soil and paper.
- Class 11 physics (mechanical properties of fluids): showing that capillary rise increases as the bore decreases, then repeating it with single 1 mm glass Capillary Tubes.
- Middle-school science: introducing capillarity alongside the rise of water in plants.
- Comparing water with other liquids to discuss surface tension and wetting, before moving on to viscosity with the Viscosity Apparatus Stokes Method.
Adding a drop of ink or food colour to the water makes the columns easier to see from the back of the room.
Standard Scope of Supply
Each apparatus comprises the metal frame and trough with six capillary tubes of different bores, 150 mm long, mounted vertically. Water is added by the user before the demonstration, and spare tubes or other surface tension items can be listed on the same quotation.
Packing, MOQ and Lead Time
Quotations are available for a single apparatus or one per properties-of-matter bench, and each sets out the packing, delivery time and price for your quantity. Spare capillary tubes and related surface tension apparatus can appear on the same quotation for one delivery.
Science Lab Supplies is a registered exporter with an Importer-Exporter Code and is able to ship to buyers in Rwanda, South Africa, Qatar, Sri Lanka, Vietnam and Malaysia. A fluids bench built around this unit can be enquired about on the contact page or collected in the enquiry cart, with tender buyers directed to the lab tender page.
Frequently Asked Questions
What does the Capillary Tube Apparatus show?
It shows how capillary rise depends on bore diameter. With the trough filled, water climbs higher in the narrower tubes, and the difference in column heights is clear at once.
How many tubes does it have and how long are they?
It has six capillary tubes of different bores, each 150 mm long, held vertically in the trough by a metal frame with an overall height of 90 mm.
Is Science Lab Supplies the manufacturer or a trader?
The six-tube capillary unit is a product of the Science Lab Supplies factory in Saha, Ambala, India; buying from the manufacturer means the quotation and dispatch both come from that site.
Can it be included in a school lab tender?
Yes. Send the tender specification and quantity through the contact page, and an item-wise quotation will be prepared covering the apparatus and any spare tubes you list.
Related Fluid and Surface Tension Apparatus
These six items continue the fluids lesson that capillary tubes begin: two apparatus showing that connected liquid columns find the same level, a rising table for capillary work, and three ways of studying or measuring surface tension, so a complete properties-of-liquids unit can be quoted together.
- Liquid Level Apparatus — connected vessels in which water finds the same height whatever their shape.
- Communication Vessel Apparatus — four vertical glass pipes of different shapes on a common pipe.
- Rising Table with Capillary Tube Clamp — cast aluminium 4 in table on an adjustable stand, up to 12 in high.
- Surface-Tension Demonstration Set — 0.1 N dynamometer, 1000 ml vessel and nickel-plated wire frames.
- Jaeger's Surface Tension Apparatus — manometer, capillary tube and dropping-funnel bottle on a wooden stand.
- Searle's Surface Tension Balance — tripod-mounted balance for soap films, read by the deflection of a beam.
Browse the full Physics Lab range, the Elasticity and Surface Tension range for surface tension and viscosity apparatus, or all physics lab equipment.
Last updated: 22 October 2026
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