Boyle's Law Apparatus

Product Code : EL-PLE-11905

Quick Answer: The Boyle's Law Apparatus is a demonstration unit for showing the relationship between gas pressure and volume to a whole class. Air is trapped by coloured oil in a wide-bore glass tube mounted on a 0 to 600 mm scale, with a pressure gauge on the metal pressure chamber.

Last updated: October 2026

Key Features

• Wide-bore glass tube, closed at the top, mounted on a scale reading 0 to 600 mm.
• Zero on the scale corresponds to the inside of the top end of the tube.
• Air column trapped by coloured oil in a metal pressure chamber.
• Bourdon pressure gauge and a rifled inlet tube with stopcock on the chamber.
• Plastic safety screen fitted over the glass tube.

Technical Specifications

About This Product

The apparatus is designed for Boyle law demonstrations over a wide range of pressures, and the readings can be seen from a distance, so a teacher can run it at the front of the class. As the pressure on the coloured oil changes, the length of the trapped air column is read against the scale and compared with the gauge reading. For export orders, the Boyle's Law Apparatus can be supplied to the United Arab Emirates, Bhutan, Belarus and the Democratic Republic of the Congo.

Frequently Asked Questions

Can students read the results from their seats?

Yes. The apparatus is designed for demonstration to a group, and the results can be observed from a distance.

How is the air column held in the tube?

The air is trapped by coloured oil in a metal pressure chamber, which is fitted with a Bourdon gauge and an inlet tube with a stopcock.

Related: Physics Lab Equipment, Magdeburg Hemispheres, Liquid Level Apparatus.

For a quotation on the Boyle's Law Apparatus, contact School Lab China.