Replacement O-Rings (Buna-N)
These replacement elastomeric o-rings are used (in conjunction with a centering ring -- not included) for sealing ISO flanges. The ISO flange (also called Large ISO) is used for HV chamber ports and is available in two distinct styles; ISO-K which uses clamp fasteners and ISO-F which uses nut and bolt fasteners.
O-Rings Feature:
- O-Rings available in Viton (fluorocarbon), Buna-N (nitrile rubber), and silicone materials
- The more popular o-ring sizes for vacuum use are listed below; contact us for other sizes or for application questions
| Flange OD | Material | O-Ring ID | O-Ring Cross Section | Weight lbs (kg) | PartNo | Price | | |
| ISO63 |
Buna-N |
2.85" |
0.210" |
1/4 (0.11) |
O-B336 |
$1.05 |
|
|
| ISO100 |
Buna-N |
4.10" |
0.210" |
1/4 (0.11) |
O-B346 |
$2.10 |
|
|
| ISO200 |
Buna-N |
8.48" |
0.210" |
1/4 (0.11) |
O-B371 |
$6.70 |
|
|
| ISO320 |
Buna-N |
12.48" |
0.275" |
1/4 (0.11) |
O-B454 |
$8.70 |
|
|
| ISO500 |
Buna-N |
19.46" |
0.275" |
1/4 (0.11) |
O-B468 |
$16.50 |
|
|
| ISO80 |
Buna-N |
3.35" |
0.210" |
1/4 (0.11) |
O-B340 |
$1.55 |
|
|
| ISO160 |
Buna-N |
5.98" |
0.210" |
1/4 (0.11) |
O-B361 |
$4.15 |
|
|
| ISO250 |
Buna-N |
10.48" |
0.210" |
1/4 (0.11) |
O-B378 |
$10.30 |
|
|
| ISO400 |
Buna-N |
15.48" |
0.275" |
1/4 (0.11) |
O-B460 |
$11.00 |
|
|
| ISO630 |
Buna-N |
24.94" |
0.275" |
1/4 (0.11) |
O-B474 |
$31.00 |
|
|
|