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Pyrex Bell Jar L-Gaskets

The bell jar sits inside the riser of the "L" and is sealed by atmospheric pressure pushing it down onto the horizontal surface.

Designed to fit over the outer surface of the pyrex chamber.

Bell Jar Gaskets:

Bell jar and cylinder gaskets have an "L-shaped" cross-section. The bell jar sits inside the riser of the "L" and is sealed by atmospheric pressure pushing it down onto the horizontal surface. The lower side of the horizontal surface creates a vacuum-tight seal against the sealing surface (usually a baseplate, service well, or feedthrough collar). To ensure a good seal, many users lubricate the bell jar gaskets with Apiezon® hydrocarbon grease or Dow Corning silicone grease.

Dimensional Drawings


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Ordering Table

Material Gasket
ID
Dim.
(A)
Dim.
(B)
Dim.
(T1)
Dim.
(T2)
PartNo Price Add
Item
VacuCADSM
DWG
2D
CAD
3D
CAD
3D
PDF
Material Gasket
ID
Dim.
(A)
Dim.
(B)
Dim.
(T1)
Dim.
(T2)
PartNo Price Add
Item
DWG
2D
CAD
3D
CAD
3D
PDF
Buna-N
3.75"
0.50"
0.375"
0.075"
0.075"
LG04B $58.00
N/A N/A N/A N/A
Silicone
3.75"
0.50"
0.375"
0.075"
0.075"
LG04S $47.40
N/A N/A N/A N/A
Fluorocarbon
3.75"
0.50"
0.375"
0.075"
0.075"
LG04V $76.00
N/A N/A N/A N/A
Buna-N
4.75"
0.50"
0.375"
0.103"
0.075"
LG05B $43.40
N/A N/A N/A N/A
Silicone
4.75"
0.50"
0.375"
0.103"
0.075"
LG05S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
4.75"
0.50"
0.375"
0.103"
0.075"
LG05V $62.00
N/A N/A N/A N/A
Buna-N
5.75"
0.50"
0.375"
0.103"
0.075"
LG06B $43.40
N/A N/A N/A N/A
Silicone
5.75"
0.50"
0.375"
0.103"
0.075"
LG06S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
5.75"
0.50"
0.375"
0.103"
0.075"
LG06V $88.00
N/A N/A N/A N/A
Buna-N
6.75"
0.50"
0.375"
0.103"
0.075"
LG07B P.O.R.
N/A N/A N/A N/A
Silicone
6.75"
0.50"
0.375"
0.103"
0.075"
LG07S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
6.75"
0.50"
0.375"
0.103"
0.075"
LG07V $96.00
N/A N/A N/A N/A
Buna-N
7.75"
0.50"
0.375"
0.103"
0.075"
LG08B $43.40
N/A N/A N/A N/A
Silicone
7.75"
0.50"
0.375"
0.103"
0.075"
LG08S $60.00
N/A N/A N/A N/A
Fluorocarbon
7.75"
0.50"
0.375"
0.103"
0.075"
LG08V $133.00
N/A N/A N/A N/A
Buna-N
8.75"
0.50"
0.375"
0.103"
0.075"
LG09B $79.00
N/A N/A N/A N/A
Silicone
8.75"
0.50"
0.375"
0.103"
0.075"
LG09S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
8.75"
0.50"
0.375"
0.103"
0.075"
LG09V $88.00
N/A N/A N/A N/A
Buna-N
9.25"
0.75"
0.50"
0.125"
0.094"
LG10B $57.00
N/A N/A N/A N/A
Silicone
9.25"
0.75"
0.50"
0.125"
0.094"
LG10S $53.00
N/A N/A N/A N/A
Fluorocarbon
9.25"
0.75"
0.50"
0.125"
0.094"
LG10V $111.00
N/A N/A N/A N/A
Buna-N
11.50"
0.75"
0.50"
0.125"
0.094"
LG12B $56.00
N/A N/A N/A N/A
Silicone
11.50"
0.75"
0.50"
0.125"
0.094"
LG12S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
11.50"
0.75"
0.50"
0.125"
0.094"
LG12V $147.00
N/A N/A N/A N/A
Buna-N
13.125"
1.00"
0.50"
0.125"
0.094"
LG14B $58.00
N/A N/A N/A N/A
Silicone
13.125"
1.00"
0.50"
0.125"
0.094"
LG14S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
13.125"
1.00"
0.50"
0.125"
0.094"
LG14V $160.00
N/A N/A N/A N/A
Buna-N
14.50"
1.00"
0.50"
0.125"
0.094"
LG15B $60.00
N/A N/A N/A N/A
Silicone
14.50"
1.00"
0.50"
0.125"
0.094"
LG15S P.O.R.
N/A N/A N/A N/A
Fluorocarbon
14.50"
1.00"
0.50"
0.125"
0.094"
LG15V $145.00
N/A N/A N/A N/A
Buna-N
17.25"
1.125"
0.625"
0.125"
0.094"
LG18BP $75.00
N/A N/A N/A N/A
Silicone
17.25"
1.125"
0.625"
0.125"
0.094"
LG18S $85.00
N/A N/A N/A N/A
Fluorocarbon
17.25"
1.125"
0.625"
0.125"
0.094"
LG18V $222.00
N/A N/A N/A N/A

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