Air pump plate with electrical connections
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Product Code : SCL-PLE-10388
The Air Pump Plate with Electrical Connections from Lab Glassware Manufacturer is a physics laboratory vacuum accessory used with a bell jar and vacuum pump where electrical feedthroughs are required inside a reduced-pressure chamber.
Quick answer: This is a baseplate fitted with electrical terminals that seals under a vacuum bell jar, allowing wired components such as a bell or lamp to be powered and observed while the chamber is evacuated.
| Specification | Detail |
|---|---|
| Product Name | Air Pump Plate with Electrical Connections |
| Function | Vacuum baseplate with electrical feedthrough terminals |
| Brand / Supplier | Lab Glassware Manufacturer |
| Category | Physics Lab Equipment – Vacuum Apparatus / Bell Jar Accessories |
Why Use a Plate with Electrical Connections?
Classic vacuum demonstrations, such as showing an electric bell fade to silence under vacuum, require power to reach a component sealed inside the bell jar. This plate provides sealed electrical terminals so wiring can pass through the vacuum seal without breaking the pressure.
Frequently Asked Questions
Q: What is this plate used for?
A: It seals under a vacuum bell jar and provides electrical terminals so a wired component inside the chamber can be powered while air is evacuated.
Q: Is the bell jar included?
A: This listing is for the plate only; pair it with our DURAN Glass Vacuum Bell and a compatible vacuum pump for a complete setup.
Q: What experiments use this plate?
A: A common demonstration is showing an electric bell grow fainter as air is pumped out, illustrating that sound needs a medium to travel.
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Last updated: September 2026
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