This EVAC Aluminum Metal OUTER Seal NW16 KF16 flange is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) aluminum metal seals. This allows for a lower vacuum compared to elastomer (Viton/Buna) rubber seals. Other benefits include: reduced outgassing, no permeation , no hydrocarbons, and resistance to radiation and higher heat. The resultant UHV seal has a helium leak rate of less than 1 X 10 -11 standard cc/sec. They can also be baked repeatedly to 150°C (302°F). The EVAC chain clamp and an aluminum knife edge seal form the UHV vacuum seal between the connecting KF flanges. (please see far right graphic above - click to enlarge). This EVAC metal seal is made of aluminum. This is a KF16 NW16 aluminum metal knife edge seal only, the stainless steel chain clamp IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the aluminum metal knife edge seal, download the EVAC Flange Brochure .pdf below.

This EVAC Aluminum Metal INNER Seal NW16 KF16 flange is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) aluminum metal seals. AN OUTER Seal can also be used. This allows for a lower vacuum compared to elastomer (Viton/Buna) rubber seals. Other benefits include: reduced outgassing, no permeation , no hydrocarbons, and resistance to radiation and higher heat. The resultant UHV seal has a helium leak rate of less than 1 X 10 -11 standard cc/sec. They can also be baked repeatedly to 150°C (302°F). The EVAC chain clamp and an aluminum knife edge INNER seal form the UHV vacuum seal between the connecting KF flanges. (please see far right graphic above - click to enlarge). This EVAC metal seal is made of aluminum. This is a KF16 NW16 aluminum metal knife edge INNER seal only, the stainless steel chain clamp IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the aluminum metal knife edge seal, download the EVAC Flange Brochure .pdf to the side.

This EVAC Aluminum Metal OUTER Seal NW25 KF25 flange is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) aluminum metal seals. This allows for a lower vacuum compared to elastomer (Viton/Buna) rubber seals. Other benefits include: reduced outgassing, no permeation , no hydrocarbons, and resistance to radiation and higher heat. The resultant UHV seal has a helium leak rate of less than 1 X 10 -11 standard cc/sec. They can also be baked repeatedly to 150°C (302°F). The EVAC chain clamp and an aluminum knife edge seal form the UHV vacuum seal between the connecting KF flanges. (please see far right graphic above - click to enlarge). This EVAC metal seal is made of aluminum. This is a KF25 NW25 aluminum metal knife edge seal only, the stainless steel chain clamp IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the aluminum metal knife edge seal, download the EVAC Flange Brochure .pdf below.

This EVAC Aluminum Metal OUTER Seal NW40 KF40 flange is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) aluminum metal seals. This allows for a lower vacuum compared to elastomer (Viton/Buna) rubber seals. Other benefits include: reduced outgassing, no permeation , no hydrocarbons, and resistance to radiation and higher heat. The resultant UHV seal has a helium leak rate of less than 1 X 10 -11 standard cc/sec. They can also be baked repeatedly to 150°C (302°F). The EVAC chain clamp and an aluminum knife edge seal form the UHV vacuum seal between the connecting KF flanges. (please see far right graphic above - click to enlarge). This EVAC metal seal is made of aluminum. This is a KF40 NW40 aluminum metal knife edge seal only, the stainless steel chain clamp IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the aluminum metal knife edge seal, download the EVAC Flange Brochure .pdf below.

This EVAC Aluminum Metal OUTER Seal NW50 KF50 flange is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) aluminum metal seals. This allows for a lower vacuum compared to elastomer (Viton/Buna) rubber seals. Other benefits include: reduced outgassing, no permeation , no hydrocarbons, and resistance to radiation and higher heat. The resultant UHV seal has a helium leak rate of less than 1 X 10 -11 standard cc/sec. They can also be baked repeatedly to 150°C (302°F). The EVAC chain clamp and an aluminum knife edge seal form the UHV vacuum seal between the connecting KF flanges. (please see far right graphic above - click to enlarge). This EVAC metal seal is made of aluminum. This is a KF50 NW50 aluminum metal knife edge seal only, the stainless steel chain clamp IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the aluminum metal knife edge seal, download the EVAC Flange Brochure .pdf below.