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ISO-KF Vacuum Flange Centering Ring Seals
ISO-KF centering rings are inserted between two flange faces and secured with an encompassing flange clamp. An included O-ring provides the vacuum seal.

ISO-KF Aluminum Centering Rings with Viton O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 180 °C Max. Viton® O-Ring
- Aluminum construction

ISO-KF Aluminum Centering Rings with Buna-N O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 80 °C Max. Buna-N O-Ring
- Aluminum construction

ISO-KF Stainless Steel Centering Rings with Viton O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 180 °C Max. Viton® O-Ring
- Stainless Steel construction

ISO-KF Stainless Steel Centering Rings with Buna-N O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 80 °C Max. Buna-N O-Ring
- Stainless Steel construction

ISO-KF Stainless Steel Centering Rings with Silicone O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 200 °C Max. Silicone O-Ring
- Stainless Steel construction

ISO-KF Aluminum Adaptive Centering Rings with Viton O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 180 °C Max. Viton® O-Ring
- Adapts to obsolete bore sizes

ISO-KF Aluminum Adaptive Centering Rings with Buna-N O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 80 °C Max. Buna-N O-Ring
- Adapts to obsolete bore sizes

ISO-KF Stainless Steel Adaptive Centering Rings with Viton O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 180 °C Max. Viton® O-Ring
- Adapts to obsolete bore sizes

ISO-KF Stainless Steel Centering Ring with Screen
- Seal connection between two ISO-KF flange faces
- Replaceable 180 °C Max. Viton® O-Ring
- 72 mesh screen for filtering

ISO-KF Flange Overpressure Rings
- Seal overpressure connections between two ISO-KF flange faces
- Can be added to standard centering rings
- 5-100 psig operation

ISO-KF Stainless Steel Overpressure Centering Ring with Viton O-Ring
- Seal connection between two ISO-KF flange faces
- Replaceable 180 °C Max. Viton® O-Ring
- Included overpressure ring for 5-100 psig operation

ISO-KF Centering Ring Replacement O-Rings
- Replacement O-rings for centering rings
- Viton®, Buna-N, or Silicon materials
- Keep as spares for increased up-time
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