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 fabricates the apparatus in its own Ambala factory at Plot 448, HSIIDC Industrial Area, Saha, India, and quotes it directly to schools, colleges, tender contractors and distributors.
Specifications
A metal frame holds the six capillary tubes vertically in a trough. Each tube is 150 mm long, the frame stands 90 mm high overall, and every tube has a different bore, so the water columns settle at clearly different heights once the trough is filled.
| Parameter | Value |
|---|---|
| SKU | LSK-PL-10331 |
| Capillary tubes | 6, each of a different bore |
| Tube length | 150 mm |
| Frame | Metal, holding the tubes vertically in a trough |
| Overall frame height | 90 mm |
| 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. It links surface tension to everyday effects such as water rising through soil and paper.
- Class 11 physics (mechanical properties of fluids): showing that capillary rise increases as the bore decreases.
- Middle-school science: introducing capillarity alongside the rise of water in plants.
- Comparing water with other liquids to discuss surface tension and wetting.
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, and any extra items can be listed on the 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.
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. Reach the sales team on the contact page, or list what you need in the enquiry cart; the lab tender page explains tender supply.
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?
Six capillary tubes of different bores, each 150 mm long, held vertically by a metal frame with an overall height of 90 mm.
Is Science Lab Supplies the manufacturer or a trader?
A manufacturer: the apparatus is assembled at the company's factory in Saha, Ambala, India, and quotations are issued from there directly.
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.
Related Fluid and Surface Tension Apparatus
These four items continue the fluids lesson that capillary tubes begin: loose capillary tubes for spares, two apparatus showing that connected liquid columns find the same level, and a surface tension set with wire frames, so a complete properties-of-liquids unit can be quoted together.
- Capillary Tubes — clear 1 mm tubes for extra capillarity work.
- Liquid Level Apparatus — connected vessels in which water finds the same height.
- Communication Vessel Apparatus — four vertical glass pipes of different shapes on a common pipe.
- Surface-Tension Demonstration Set — dynamometer, vessel and wire frames for surface tension.
Browse the full Physics Lab range or all physics lab equipment.
Last updated: 25 September 2026
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