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, light weight, 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.