Duran Glass Vacuum Bell
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Product Code : SCL-PLE-10387
The DURAN Glass Vacuum Bell from Lab Glassware Manufacturer, based in Ambala, Haryana, India, is a laboratory bell jar used to enclose apparatus during vacuum, pressure, gas-expansion, boiling-point, and sound-transmission demonstrations. Lab Glassware Manufacturer has manufactured and exported physics and laboratory glassware since 1982 to schools, colleges and universities across countries including Bahrain, Kuwait, and Qatar in the Persian Gulf Rim region.
Quick answer: A vacuum bell jar is a glass dome placed over apparatus and connected to a vacuum pump to demonstrate effects such as sound not travelling in a vacuum, balloon expansion at low pressure, or boiling point reduction.
| Specification | Detail |
|---|---|
| Product Name | DURAN Glass Vacuum Bell |
| Glass Type | DURAN-type borosilicate glass |
| Brand / Supplier | Lab Glassware Manufacturer |
| Category | Laboratory Glassware / Vacuum Apparatus / Physics Lab Equipment |
What Is a Vacuum Bell Jar Used For?
A vacuum bell jar is sealed onto a baseplate connected to a vacuum pump, allowing students to observe how removing air affects sound transmission, balloon or marshmallow expansion, and the boiling point of water — a staple demonstration in physics and general science teaching labs.
Frequently Asked Questions
Q: What experiments use a vacuum bell jar?
A: Common demonstrations include showing sound cannot travel in a vacuum, balloon/marshmallow expansion at low pressure, and reduced boiling point of water under vacuum.
Q: Does it come with a vacuum pump?
A: This listing is for the glass bell jar; confirm with our team whether a baseplate and vacuum pump are needed separately for your setup.
Q: Is the glass heat and pressure resistant?
A: DURAN-type borosilicate glass is generally valued for thermal and mechanical durability; confirm exact glass grade and pressure rating with our team before ordering.
Q: Does Lab Glassware Manufacturer export this internationally?
A: Yes, we manufacture and export laboratory glassware from Ambala, Haryana, India to schools, colleges and distributors worldwide.
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Last updated: September 2026
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