Aluminum Face Seal ATCR Fitting, VCR Fitting
Atlas Socket, Butt and Male weld ATCR™ face-seal fittings are fitted with a durable stainless steel sealing face that is explosion welded (EXW) to an aluminum body. The bond produced is extremely rugged. All face-seal fittings are helium leak tested for service in UHV environments in excess of 1×10-9 Torr. Atlas ATCR™ fittings enable robust demountable use of aluminum tubing in cryogenic, physics, and semiconductor applications worldwide. Standard socket, butt, male and chamber mount weld fitting geometries are available in 1/4, 3/8, 1/2, 3/4 and 1 inch tube diameters. Chamber mount fittings are available in four length configurations suitable for 1/2, 3/4, 1 and 1-1/4 inch chamber wall thicknesses.
Atlas ATCR™ fittings are fully compatible with Swagelok VCR® and Parker-Hannifin VacuSeal® fittings but, unlike these other fittings, Atlas ATCR™ fittings are used where high thermal conductivity and high chemical resistance is needed or where any of the advantageous physical properties of aluminum are required.
Atlas bimetallic ATCR™ fittings—the aluminum tube fitting with a stainless steel face-seal, make UHV aluminum vacuum systems a reality.
Atlas aluminum ATCR™ face-seal fittings are fully compatible with Swagelok VCR® and Parker-Hannifin VacuSeal® fittings.
- Body/Weld Interface: Aluminum 6061-T6
- Seal-Face: Stainless Steel 316L, Optional Titanium (commercially pure)
- Rotatable Nut: Aluminum 6061-T6, Optional Stainless Steel 304
- Vacuum: Leak tested to < 1×10-9 cc/sec of He
- Temperature, Peak: 300ºC (During weld-up)
- Temperature, Operational: -200ºC to 250ºC
Mechanical (EXW Interface):
- Tensile: 15,000psi
- Shear: 10,000psi
- Cryogen feed lines