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Pneumatic Trough
Pneumatic Trough (Product Code: SLE/P/07) is a water trough with a built-in bridge, used to collect gases over water in school and college chemistry practicals. Teachers pick it because the coloured trough is resilient, rustproof, lightweight and noise free, and its bridge holds four 8-oz widemouthed bottles at once. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, alongside the other gas collection apparatus schools in India use for these experiments.
Specifications
| Parameter | Detail |
|---|---|
| Trough | Coloured; resilient, rustproof, lightweight and noise free |
| Bridge | Built in |
| Bottle capacity of bridge | Holds four 8-oz widemouthed bottles |
| Connections | Inlet connection and overflow outlet, each taking 1/4-inch (about 6 mm) diameter tubing |
| Product code | SLE/P/07 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is a Pneumatic Trough Used For?
A pneumatic trough is the classic way to collect a gas that does not dissolve much in water, such as oxygen or hydrogen prepared in class. The trough is filled with water, a bottle or gas jar is filled, inverted and stood on the bridge, and the delivery tube from the gas generator is led underneath. Bubbles rise into the bottle and push the water out, so students can see exactly how much gas has been produced.
The built-in bridge means no separate beehive shelf is needed, and holding four bottles lets a group collect several samples in a row for tests such as the glowing splint or the lighted splint. Lead the overflow outlet to a sink or bucket so excess water drains away, and take the delivery tube out of the water before stopping any heating, so water cannot be sucked back into hot glassware. Being rustproof, the trough can simply be rinsed and left to dry.
What to Specify When Ordering
- The number of troughs, usually one per practical group.
- Whether you also need widemouthed bottles or gas jars to stand on the bridge.
- Tubing for the 1/4-inch inlet connection and overflow outlet.
- Any colour preference, which we will confirm on the quotation.
Supplier
The Pneumatic Trough is supplied by Jain Scientific Equipments Private Limited, the Ambala, Haryana company that trades as ScienceLab, as part of its Scientific Lab Plasticware range. Schools, junior colleges, coaching institutes, dealers and importers in India and international markets can order it with gas jars, tubing and delivery tubes for a complete gas-collection set-up. Company information is on the ScienceLab profile.
Related Scientific Lab Plasticware
These items complete a gas preparation and collection experiment:
- Gas Jar, Glass — a jar that can be filled with water and inverted in the trough to collect gas.
- Gas Jar Cover — seals a filled gas jar when it is lifted out for testing.
- Delivery Tube — carries gas from the generating flask to the trough.
- Rubber Tubing — flexible connections between the apparatus and the trough fittings.
More plastic ware is listed in the Scientific Lab Plasticware category.
Frequently Asked Questions
What is the Pneumatic Trough used for?
The Pneumatic Trough (SLE/P/07) is used to collect gases over water in chemistry practicals. Bottles or gas jars filled with water stand inverted on its bridge, and gas from a delivery tube bubbles up into them, displacing the water so the gas can be collected and tested.
What does the built-in bridge on the Pneumatic Trough hold?
The built-in bridge of the Pneumatic Trough holds four 8-oz widemouthed bottles. That lets a group collect several gas samples one after another without a separate beehive shelf, which keeps the set-up simple and stable on the bench.
What size tubing fits the Pneumatic Trough?
Both the inlet connection and the overflow outlet of the Pneumatic Trough take tubing of 1/4-inch diameter, which is about 6 mm. Tell us if you would like matching tubing quoted with the trough so the set arrives ready to connect.
What is the Pneumatic Trough made of?
The Pneumatic Trough is described as a coloured trough that is resilient, rustproof, lightweight and noise free. The listing does not name the exact material, colour or overall dimensions, so please ask us through the contact page if you need them for a tender or bench layout.
How should the Pneumatic Trough be cleaned after use?
Empty the Pneumatic Trough, rinse it with clean water and leave it upside down to drain and dry. Because it is rustproof, it can be stored wet without corrosion, but drying it keeps the connections clean and prevents water marks.
Who supplies the Pneumatic Trough, and can schools order several?
The Pneumatic Trough is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India. Single troughs, one per practical group, or bulk quantities can be quoted for schools, dealers and importers in India and international markets.
Request a Quote
Ask for a Pneumatic Trough quotation on the contact page, or add it to the enquiry cart with gas jars, delivery tubes and tubing so the whole gas-collection set can be priced together.
Last updated: 24 September 2026
