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Non-rotatable

Features
  • Complies with ISO 3669
  • UHV rated to 1x10-13 mbar
  • High temperature rated to 450°C
  • Non-rotatable geometries
  • OFE Copper or optional Viton® elastomer gaskets
  • Tapped or clearance bolt holes
  • There is widespread incompatibility between different manufacturers' larger sizes of the CF flange-No DN International Standard notation exists for CF flanges sizes 304mm (12") OD and above.

DN 250CF 304mm 12" OD


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Specifications
Material  
Flanges 304 ( 1.430 I) or 316EFR ( 1.4429 ESU)
Gaskets OFE Copper
Bolts Stainless steel
Fastening  
Bolt Type Hexagonal
Nut Type Hexagonal
Size M8
Torque 20 Nm
Vacuum Range to below I 0-' 3 mbar
Temperature Range -200°C to 450°C
Weight 15.5 kg maximum
Dimensions 305.0 OD x 247.7 ID maximum
Elastomer seal temperature range  
Sustained -20°C to 150°C
Intermittent 200°C

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