Dryer Pipes
Product Code : SCL-CL-11487
Dryer Pipes (SKU SCL-CL-11487), more commonly called drying tubes, are clear glass tubes 17 mm in diameter and 145 mm long. Packed with a solid drying agent, they remove moisture from a gas passing through or stop damp air reaching a reaction. They appear in gas-preparation practicals in senior secondary chemistry and in college labs. Science Lab Supplies supplies them from Ambala, India to schools, colleges, training institutes and distributors, with tender quantities quoted on request.
Specifications
The pipe is a clear glass tube of 17 mm diameter and 145 mm length, wide enough to hold a useful charge of granular desiccant between two plugs of cotton wool. The specification lists the glass as resistant to chemicals and heat.
| Parameter | Value |
|---|---|
| SKU | SCL-CL-11487 |
| Also known as | Drying tube |
| Material | Glass, clear |
| Diameter | 17 mm |
| Length | 145 mm |
| Resistance | Chemical resistance, heat resistance |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for Dryer Pipes
A drying tube sits in a gas line or on top of a flask. Filled with a desiccant such as anhydrous calcium chloride, it takes water vapour out of a gas before the gas is collected or tested, or keeps moist air away from a reaction that must stay dry.
- Class 11–12 chemistry: drying gases prepared in the laboratory before collection.
- Demonstrating that a gas contains water vapour by weighing the tube before and after.
- B.Sc. organic practicals: a guard tube on a reflux condenser to exclude moisture.
- Diploma and technician training: assembling gas-handling trains.
Choose a drying agent that does not react with the gas being dried, replace it when it is spent, and handle desiccants with care under supervision.
Standard Scope of Supply
Dryer Pipes are supplied as empty glass tubes of the size shown above. The drying agent, cotton wool, stoppers and connecting tubing are not included and are supplied separately if you add them to your enquiry.
Packing, MOQ and Lead Time
Request a quotation for one tube or a batch for every workbench; Science Lab Supplies replies with the packing, delivery time and price for that quantity. As a chemistry lab instruments supplier it can add stoppers, tubing and drying columns to the same quotation.
As a registered exporter under an Importer-Exporter Code, Science Lab Supplies can ship to buyers in Ethiopia, Tanzania, Uganda, the UAE, Saudi Arabia and Oman. Use the enquiry cart to gather your items, the contact page for questions, and the lab tender page if you are bidding on a tender.
Frequently Asked Questions
What are dryer pipes used for?
They hold a solid desiccant that dries a gas flowing through the tube or protects a reaction from atmospheric moisture. They are also known as drying tubes.
Is a drying agent supplied with the tube?
No. The tube is supplied empty, so the laboratory fills it with the desiccant suited to its experiment, held between cotton-wool plugs.
Who supplies the Dryer Pipes?
Science Lab Supplies of Ambala, India supplies them, quoting institutions and distributors for single pieces or larger lots.
How is the tube connected to apparatus?
Fit it through a bored rubber stopper or join it with rubber tubing. Our team can advise on matching stopper sizes through the contact page.
Related Gas-Drying Glassware
Drying a gas usually involves a generator, a drying stage and some way of joining them. The larger drying column, a gas generator, stoppers and rubber tubing from the Chemistry Lab range complete such a train and can be quoted with the dryer pipes.
- Drying Column — a 250 ml column for drying gases.
- Kipps Apparatus — produces gases on demand.
- Rubber Stoppers of Various Diameters with Holes — seat the tube in a flask.
- Rubber Tube (Laboratory) — joins the tube into a gas line.
Browse the full Chemistry Lab range or all school lab equipment.
Last updated: 25 September 2026
