Specializing in standard, custom, and modified Glass to Metal seals.

ISO Large Flanges

Large-Flange® ISO vacuum flanges are an economical system of reusable interfacing stainless steel vacuum fittings for larger sizes of tubing from 2-1/2 thru 20 inch. Vacuum seal is by compression of an o-ring between two like flanges which can be either Claw-Clamp or Bolt type. Standard components in this catalog are supplied mounted on Claw-Clamp flanges. These can be mated to bolt flanges with a Rotatable Bolt Ring assembly.

Assemblies are bakeable to 200°C intermittent and 150°C sustained. Operating pressure is 30psig positive. Viton® o-rings may require periodic replacement.

Features:

  • ISO Compatible
  • Type 304 stainless steel flanges
  • All metal Aluminum Claw-Clamps
  • Viton® o-rings bakeable to 200°C; sustained use at 150°C
  • Compatible with Bolt-Style flanges when using Rotatable Bolt Ring

Request a quote on Large-Flange® ISO vacuum flanges for your application, or contact Larson Electronic Glass for more information.

Larson Electronic Glass offers "Large-Flange" hardware available for flanges from NW63 to NW200

 
 *Please select the quantity for each item you wish to order and click the 'Add To Quote' button below.
 
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NW100 4" Bored Bolt Flange  NW100 4" Bored Bolt Flange  913410  158







NW100 4" Bored Claw Clamp  NW100 4" Bored Claw Clamp  913210  91







NW100 Blank Bolt Flange  NW100 Blank Bolt Flange  913310  158







NW100 Blank Claw Clamp  NW100 Blank Claw Clamp  913110  98







NW100 Rotatable Bolt Ring  NW100 Rotatable Bolt Ring  913510  195







NW160 6" Bored Bolt Flange  NW160 6" Bored Bolt Flange  913416  310







NW160 6" Bored Claw Clamp  NW160 6" Bored Claw Clamp  913216  136.50







NW160 Blank Bolt Flange  NW160 Blank Bolt Flange  913316  275







NW160 Blank Claw Clamp  NW160 Blank Claw Clamp  913116  130







NW160 Rotatable Bolt Ring  NW160 Rotatable Bolt Ring  913516  390







NW200 8" Bored Bolt Flange  NW200 8" Bored Bolt Flange  913420  390







NW200 8" Bored Claw Clamp  NW200 8" Bored Claw Clamp  913220  215







NW200 Blank Bolt Flange  NW200 Blank Bolt Flange  913320  275







NW200 Blank Claw Clamp  NW200 Blank Claw Clamp  913120  230







NW200 Rotatable Bolt Ring  NW200 Rotatable Bolt Ring  913520  495







NW63 2-1/2" Bored Bolt Flange  NW63 2-1/2" Bored Bolt Flange  913406  105







NW63 2-1/2" Bored Claw Clamp  NW63 2-1/2" Bored Claw Clamp  913206  65







NW63 Blank Bolt Flange  NW63 Blank Bolt Flange  913306  105







NW63 Blank Claw Clamp  NW63 Blank Claw Clamp  913106  65







NW63 Rotatable Bolt Ring  NW63 Rotatable Bolt Ring  913506  130







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