110051, Flange, Del-Seal, Conflat Flange, DN40CF, 70mm x 41.3mm (2.75" x 1.6"), Clearance, Non-Rotatable, 304ss

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Weight 1.000000
Material 304SS (UNS S30400) Stainless Steel
Number of Holes 6
Bolt Hole Type Clearance
Flange Size 2.75 Inch OD (DN40CF)
Flange Type Del-Seal CF


  • Complies with ISO 3669 
  • UHV rated to 1x10-13 Torr or 1x10-13 mbar  
  • High temperature rated to 450°C  
  • Rotatable and non-rotatable geometries 
  • OFE copper or optional Viton® elastomer gaskets 
  • Tapped or clearance bolt holes 
  • Compatible with other manufacturers' Conflat® knife-edge flanges


  • Flanges                304ss (1.430I) or 316EFR (1.4429 ESU)  
  • Gaskets               OFE copper 
  • Bolts                    300 stainless steel (ss) and 300ss silver-plated 



  • Bolt Type              Hexagonal or 12-point head 
  • Nut Type               Hexagonal or two-hole plate nuts 
  • Size                       .250-28 UNF or M6 
  • Torque                  12 lb-ft or 16 Nm 


Vacuum range                1x10-13 Torr or below 10-13 mbar 


Temperature range        -200°C to 450°C 


Weight                               1 lb or 0.5 kg maximum 


Dimensions                      69.3 mm OD x 41.3 mm ID | 2.73 OD x 1.375 ID maximum  

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