Atlas WS™ Wire Seal Flanges — Large format UHV metal-seal bimetallic flanges for tube sizes from 10 to 24 inches in diameter.

Atlas Wire-Seal Flange Features

  • Aluminum to stainless explosion welded (EXW) bimetallic construction
  • 1/3 The Weight of Stainless Flanges
  • UHV Rated to 1x10-13 Torr
  • 100% Compatible with third-party stainless Wire-Seal hardware
Atlas bimetallic flanges are quality controlled using material batch monitoring processes.

Body/Weld Interface—Aluminum 6061-T6
Knife-Edge—Stainless Steel 316L
Titanium (Commercially Pure) Optional

Vacuum leak tested to < 1x10-9 cc/sec of He
Peak Temperature (During weld-up) 300°C
Operational Temperature from -200°C to 250°C

Mechanical (EXW Interface)
Atlas WS Wire Seal Flanges

Atlas WS™ Wire Seal Flanges

back bevel on knife edge improves seal by making it more tolerant to thermal cycles as well as enhancing its durability

Figure 1. Atlas WS™ Wire Seal flange, Stainless sealing face (Male or Female)/ Aluminum body for weld-up to Aluminum chamber

When size requirements for demountable flanges exceed that of standard Atlas CF™ flanges, Atlas Wire Seal flanges are the choice. These large, lightweight flanges enable you to utilize the many superior vacuum, physical, chemical and nuclear properties of UHV aluminum vacuum chambers. Atlas Wire Seal flanges are made from large-area Atlas explosion welded material.  These flanges provide 316L stainless steel for the sealing surface to crush a wire gasket and 6061-T6 aluminum flange body for weld-up to Atlas plate, cylindrical, spherical, monocoque or extruded chambers. All wire seal flanges are vacuum tested and guaranteed leak-tight to a rate of 1x10 -9 cc/sec of He prior to shipping.

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