Delivery Tube Manufacturer,Supplier and Exporter in India

The Delivery Tube (Product Code: SLE/GBO/17) set contains four clear glass tubes of 6 mm outer diameter — two straight and two bent at 90° — used to lead a gas from a reaction vessel into a collecting jar, a test solution or a water trough. Fitted through a bored stopper, these tubes form the link in the gas collection apparatus used in India’s school and college labs. The set is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.

Specifications

Each set comprises:

• 1 x short, straight tube, 70 mm long
• 1 x long, straight tube, 170 mm long
• 1 x 90° bend with both arms 60 mm long
• 1 x 90° bend with arms of 60 mm and 160 mm

Typical Use

Many of the gas experiments in a science lab kit for class 10 depend on a delivery tube: carbon dioxide is generated in a flask or boiling tube and bubbled through lime water, hydrogen is collected over water, and oxygen is led into an inverted gas jar. The bend with one 160 mm arm can reach down to the bottom of a gas jar or into a trough, while the short 60 mm bend sits neatly on a stopper; the 70 mm and 170 mm straight tubes serve as connectors, thistle-funnel extensions or simple outlets. Having all four shapes in one set means a teacher can assemble the common arrangements without cutting and bending tubing.

To fit a tube into a bored rubber stopper, wet the glass with water, hold the tube close to the stopper with a cloth around your hand, and twist it in gently rather than pushing. Never force a tube; this is how most cuts in school labs happen. When a heated reaction is being stopped, remove the delivery tube from the water trough before removing the heat so that water is not sucked back into the hot vessel.

Manufacturer

Jain Scientific Equipments Private Limited makes this set in Ambala, Haryana, and markets it under the ScienceLab name. The company supplies chemistry glassware and apparatus to schools, colleges and laboratories in India and international markets. For company background, see the profile page.

Related Laboratory Equipment

Parts needed to build a complete gas preparation and collection set-up:

• Rubber stoppers with holes of different diameters — to seat a tube securely in the mouth of a flask or test tube.
• Rubber Tubing — for flexible joints between glass tubes.
• Gas Jar, Glass — to collect the gas delivered by the tube.
• Conical Flask — a common reaction vessel for generating the gas.
• Boiling Tube — for heating small quantities of reactants.

This set is listed in our Glassware Bottles category.

Frequently Asked Questions

What is included in the set?
Four glass tubes: a 70 mm straight tube, a 170 mm straight tube, a 90° bend with two 60 mm arms, and a 90° bend with arms of 60 mm and 160 mm.

What diameter stopper hole do I need?
The tubes have an outer diameter of 6 mm, so choose stoppers bored to suit that size. The inner diameter is not listed; contact us if you need it.

Can I heat or reshape the tubes?
The glass is heat resistant, but the tubes are supplied ready-shaped. If you need other lengths or angles, ask us rather than re-working them in a flame.

Are single tubes available separately?
This item is a set of 4. For individual shapes or extra quantities of one shape, please ask when you enquire.

How do I clean the tubes?
Flush them with water immediately after use, then rinse with distilled water and let them drain. A narrow pipe cleaner or brush helps with the bends.

Can you supply class sets or export quantities?
Yes. State the number of sets and the delivery location; we supply schools and laboratories in India and international markets.

Request a Quote

To order the Delivery Tube set, send the number of sets through our contact page or add it to the enquiry cart along with stoppers, tubing and gas jars.

Last updated: 24 September 2026