CF Hardware & Accessories

CF Hardware & Accessories

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CF Flange Hardware

CF Flange Hardware

CF flanges are available with tapped or untapped holes. Tapped flanges are available in UNC /UNF or metric threads. Tapped flanges have through holes, so bolts may protrude slightly from the back of the flange when fastened to an untapped flange. Untapped CF flanges can be fastened to each other with stainless steel bolts and hex nuts or plate nuts. Plate nuts center themselves over two adjacent holes and can be held in place with one finger while the bolts are tightened. They are available for most flange sizes from 1-1/3 to 10 inch ODs. As an alternative to hex head bolts, 12-point bolts are available for CF flanges from 2-3/4 to 10 inch ODs. Silver plated bolts eliminate the need for anti-seize compound in clean room environments.

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Aluminum to Stainless Steel Transitions

Aluminum to Stainless Steel Transitions

EBARA's new Aluminum to Stainless Steel Transitions provide a reliable UHV seal for aluminum vacuum systems. An explosion bonded composite of aluminum, stainless steel and two other UHV materials make these transitions leak tight at UHV pressures. Transitions are welded to a stainless steel CF flange as a complete unit ready to weld to your aluminum chamber or beamline, or the transition can be purchased separately for welding to your own CF flange.

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Special Purpose Flanges

Special Purpose Flanges

EBARA's special purpose CF flanges are used as roughing accessories, accommodating thermocouple gauge tubes, up-to-air valves and/or NPT threaded fittings. Double-sided flanges are provided with one or more radially tapped holes. Blank flanges are provided with a single concentric 1/8 NPT tapped hole. Hardware for special purpose flanges is located on the appropriate flange size pages.

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