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CF 2.75″ feedthrough 3D model
Viewports and feedthroughs

CF 2.75″ feedthrough

1 × CF 2.75″ (DN40CF) ConFlat flange, 2.4 cm³ of internal volume and 41.9 cm² of wetted surface.

Build a system with this part

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

Specifications

TypeFeedthrough
Flanges1 × CF 2.75″ (DN40CF) ConFlat (CF), knife-edge, copper gasket
Ports1
Internal gas volume2.4 cm³ (0.002 L)
Wetted surface area41.9 cm²
MaterialStainless 304
Overall size70 × 184 × 70 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″ blank flange CF 2.75″ blank flangeCF 2.75″CF 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