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Flange Assembly

  • HV rated to 1x10-8 Torr
  • High temperature rated to 200ºC
  • Symmetric, nonrotatable geometry
  • Rotatable bolt ring available
  • Elastomer O-ring seal
  • Three methods of fastening
  • ISO compatible & modified ISO design
A flange assembly provides all the flange components for making a single vacuum seal in a system. Only tubing is required for welding to the flanges. One complete Large-FlangeTM assembly consists of two weld flanges, four double claw-clamps and one aluminum centering ring assembly with a Viton® elastomer O-ring. These units are available only in the claw-clamp style configuration.

Flanges 304ss
Rotatable Bolt Ring Aluminum
O-Rings Viton®, Buna-N® elastomer
Claw Clamps Aluminum
Band Clamps 431ss, heat treated
Claw Clamp M8-1.25 thread, 3-4 required
Band Clamp 0.250-28 thread
Bolt Type Hexagonal Head, M-8-1.25 thread
Nut Type Hexagonal
Size / Torque Clamp: Finger tight
Bolts: 7-10 lb-ft
Vacuum Range 1x10-13
Temperature Range  
Viton® Minimum: -20ºC
Intermittent: 200ºC
Sustained: 150ºC
Buna-N® Minimum: -20ºC
Intermittent: 100ºC
Sustained: 80ºC
Dimensions Clamp Style: 3.74 OD x 2.37 ID maximum
Bolt Style: 5.12 OD x 2.37 ID maximum
For conversion tables click here

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