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CF 2.75″ blank flange 3D model
Blank flanges

CF 2.75″ blank flange

1 × CF 2.75″ (DN40CF) ConFlat flange and 18.3 cm² of wetted surface.

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Blanks seal a port; their inside face still counts as surface area for outgassing in the pumpdown simulation.

Specifications

TypeBlank flange
Flanges1 × CF 2.75″ (DN40CF) ConFlat (CF), knife-edge, copper gasket
Ports1
Internal gas volume—
Wetted surface area18.3 cm²
MaterialStainless 304
Overall size69 × 69 × 13 mm
Outgassing (unbaked, 1 h)6.0e-9 Torr·L/s/cm²
Simulation-readyNot yet

Volume and surface area are computed from the CAD model's enclosed gas space. Material outgassing values are typical published figures.

Parts that mate with CF 2.75″ flanges

CF 2.75″ 6-port chamber CF 2.75″ 6-port chamberCF 2.75″ · 172 cm³CF 2.75″ feedthrough CF 2.75″ feedthroughCF 2.75″ · 2 cm³CF 2.75″ to CF 1.33″ reducer CF 2.75″ to CF 1.33″ reducerCF 2.75″ / CF 1.33″ · 40 cm³CF 4.5″ to CF 2.75″ reducer CF 4.5″ to CF 2.75″ reducerCF 4.5″ / CF 2.75″ · 143 cm³CF 6.0″ to CF 2.75″ zero-length reducer CF 6.0″ to CF 2.75″ zero-length reducerCF 6.0″ / CF 2.75″ · 33 cm³CF 2.75″ zero-length reducer CF 2.75″ zero-length reducerCF 2.75″ · 15 cm³CF 2.75″ zero-length reducer CF 2.75″ zero-length reducerCF 2.75″ · 22 cm³CF 2.75″ zero-length reducer CF 2.75″ zero-length reducerCF 2.75″ · 30 cm³