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EVAC Chain Clamp for Converting Elastomer Seal NW50 KF50 to UHV Metal Seal

EVAC Chain Clamp for Converting Elastomer (Viton/Buna) Seal NW50 KF50 to UHV (Ultra High Vacuum) Metal Seal

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.

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PDF Logo EVAC Flange Brochure.pdf

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Ideal Vacuum offers 3D CAD models in Solidworks (SLDPRT), STP, & STEP formats. For those without CAD software a free trial 3D model viewer with measurement capabilities can be downloaded here:

E-drawing LogoeDrawings Viewer For Windows
E-drawing LogoeDrawings Viewer For MAC.

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Ideal Vacuum Products, LLC
5910 Midway Park Blvd NE,
Albuquerque, NM 87109-5805

Phone: (505) 872-0037
Fax: (505) 872-9001

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