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Pyrex® Bell Jars, Bell Jar Guards, Bell Jar "L" Gaskets

Pyrex® bell jars are supplied with rimless ground edge for use with flat baseplates and collars. The rimless edge accepts standard "L" shaped bell jar gaskets for a leak tight seal. Bakeouts higher than 150° C is not recommended and should only be done with infrared heat lamps, as they distribute heat evenly and minimize stress points. Bell Jar Guards are strongly recommended to protect personnel against an accidental implosion. KHVP guards are manufactured from perforated aluminum with aluminum spun top and tightening straps to conform to each individual bell jar.

 

 

Pyrex® Bell Jars

PART NUMBER DIAMETER / HEIGHT
BJ-1 10" X 12"
BJ-2 12" X 18"
BJ-3 18" X 18"
BJ-4 18" x 30"

 

 

Bell Jar Guards

PART NUMBER DIAMETER / HEIGHT
G-1 10" X 12"
G-2 12" X 18"
G-2A 14" X 18"
G-2B 15" X 18"
G-3 18" X 18"
G-4 18" X 30"

 

 

Bell Jar “ L” Gaskets

PART NUMBER MATERIAL DESCRIPTION
B-1 Buna N For 10" diameter
V-1 Viton® A For 10" diameter
B-2 Buna N For 12" diameter
V-2 Viton® A For 12" diameter
B-2A Buna N For 14" diameter
V-2A Viton® A For 14" diameter
B-3 Buna N For 18" diameter
V-3 Viton® A For 18" diameter

Product information is subject to change without notice. Product images may include options or accessories not included with the base model.

Precision Welded. Performance Proven.
For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
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Key High Vacuum Products, Inc.
36 Southern Boulevard, Nesconset, NY 11767
1-631-360-3970
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