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Open Ended Cylindrical & Domed End Bell Jars
Features
- Made from Pyrex® to withstand thermal shock and chemical attack
- Bottom of bell jar is ground flat to accept an L-gasket for sealing to our baseplates, feedthrough collars, or service wells
- Inexpensive and transparent
- Features good high-vacuum properties
- Available in various diameters and lengths
Inspecting and Using Pyrex Chambers
- When receiving a glass chamber, immediately look for shipping damage. Any glass chamber will have a variety of small imperfections. We recommend you ignore small surface scratches and bubbles (either flattened and elongated, or tiny spheres) because they are difficult to avoid in manufacturing and handling thick glass, and will not adversely affect vacuum applications.
- Do not ignore cracks, particularly those causing a distinct dark line more than an inch long in the bulk of the glass. A crack suggests shipping damage. If undamaged, re-pack the glass chamber in its original box until ready for installation. If you find damage, please contact us immediately for further instruction. We will do everything we can to rectify the situation.
- During use, examine the glass chamber regularly for clouding, cracks, star formations (caused by point impact) or deep, long scratches. Clean the external surface using commercial glass cleaners. If the process clouds the internal surfaces, seek advice on the best method to remove the deposit. But remember, if you are depositing some "inert" or hard-coating material on a substrate, it will form an inert, hard layer on the glass. Do not compromise the vacuum by using cleaners that cannot wash away with water or clean solvent.
- Never allow hydrogen fluoride (HF—gas or aqueous solution) near the glass chamber. It attacks glass, causing it to become opaque. Never use harsh abrasive, wire brushes, files, or metal scrapers on the glass surface. If the glass chamber becomes cracked or scarred, discard it immediately.
Dimensional Drawings
Drawing: Pyrex Bell Jar
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Questions? Email us: [USA] | [Canada] | [Europe] | [China] | [Rest of World]
Ordering Table
| Compatible Parts |
Description | Height | Chamber O.D. |
O.D. Tolerance |
O.H. Tolerance |
Thickness | Open End Flatness |
PartNo | Price | Add To Cart |
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Questions? Email us: [USA] | [Canada] | [Europe] | [China] | [Rest of World]
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