These KF-25 Stub Blank fittings follow ISO-KF standards and have a flange size of NW-25. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of ALUMINUM. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

These KF-50 Stub Blank fittings follow ISO-KF standards and have a flange size of NW-50. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of ALUMINUM. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

This EVAC Chain Clamp for NW40 KF40 flanges is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) 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 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 is a uncoated version that is the preferred choice for sealing standard KF flanges with aluminum metal seals. This chain clamp has aluminum links. This is a KF40 NW40 chain clamp only, the aluminum knife edge seal IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the chain clamp, download the EVAC Flange Brochure .pdf below. See page 4. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

These KF-16 full nipple vacuum fittings follow ISO-KF standards and have a flange size of NW-16. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of corrosive resistant stainless steel. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

This EVAC Chain Clamp for NW50 KF50 flanges is for converting Elastomer (Viton/Buna) rubber seals to UHV (Ultra High Vacuum) 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 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 is a uncoated version that is the preferred choice for sealing standard KF flanges with aluminum metal seals. This chain clamp has aluminum links. This is a KF50 NW50 chain clamp only, the aluminum knife edge seal IS NOT included but available on this website. For a complete explaination of this UHV Seal and dimensions of the chain clamp, download the EVAC Flange Brochure .pdf below. See page 4. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

These KF-40 90 degree elbow vacuum fittings follow ISO-KF standards and have a flange size of NW-40. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of Machined Aluminum. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

These Filter-Max centering rings with sintered metal provide maximum filtered protection for you vacuum system. They are useful in many situations in which a vacuum system or instrument needs to be protected from contamination by particulate generated from outside the system or from within. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The Filter-Max Centering Ring with Sintered Metal Filter DN16 ISO-KF16 centering ring contains a rubber elastomer o-ring and the screen has a mesh pore size of 4 microns with a 98% retainment of 1 micron particles.

The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. Centering Ring with Sintered Metal Filter DN16 ISO-KF16 are made of corrosive resistant stainless steel 1.4404, comes with Viton® O-Ring. Viton® is a registered trademark of DuPont Performance Elastomers. Viton® is well known for its excellent resistance to heat (400°F/200°C) and to aggressive fuels and chemicals. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

This EVAC Aluminum Metal 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. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

These KF-40 Yellow Brass Unbored Stub fittings follow ISO-KF standards and have a flange size of NW-40. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of Yellow Brass. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.

These KF-40 Centering Rings with screen vacuum fittings follow ISO-KF standards and have a flange size of NW-40. These centering rings with screen mesh are useful in many situations in which a vacuum system or instrument needs to be protected from contamination by particulate generated from outside the system or from within. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of corrosive resistant stainless steel with Viton® O-Ring. Viton® is well known for its excellent resistance to heat (400°F/200°C) and to aggressive fuels and chemicals. Viton® is a registered trademark of DuPont Performance Elastomers. Includes SolidWorks mate reference to snap to all other Ideal Vacuum KF fittings.