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CF 2.75″ 6-way cross (C6-0275) 3D model
Crosses

CF 2.75″ 6-way cross

C6-0275: 6 × CF 2.75″ (DN40CF) ConFlat flanges, 296.8 cm³ of internal volume and 306.9 cm² of wetted surface.

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Its internal volume and surface area feed the pumpdown simulation, and its measured transmission probabilities set its molecular conductance in the pumping-speed simulation.

Specifications

Type6-way cross
Catalog IDC6-0275
Flanges6 × CF 2.75″ (DN40CF) ConFlat (CF), knife-edge, copper gasket
Ports6
Internal gas volume296.8 cm³ (0.297 L)
Wetted surface area306.9 cm²
MaterialStainless 304
Overall size125 × 125 × 125 mm
Outgassing (unbaked, 1 h)6.0e-9 Torr·L/s/cm²
Molecular transmission dataYes: Monte Carlo port-to-port transmission probabilities

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″ 4-way cross CF 2.75″ 4-way crossC-0275 · CF 2.75″ · 210 cm³CF 2.75″ × CF 1.33″ reducing 4-way cross CF 2.75″ × CF 1.33″ reducing 4-way crossC-0275-133 · CF 2.75″ / CF 1.33″ · 133 cm³CF 2.75″ 5-way cross CF 2.75″ 5-way crossC5-0275 · CF 2.75″ · 253 cm³CF 2.75″ vacuum gauge CF 2.75″ vacuum gaugeCCPG-H2-3 · CF 2.75″CF 2.75″ to CF 1.33″ reducer CF 2.75″ to CF 1.33″ reducerCRN275X133 · CF 2.75″ / CF 1.33″ · 40 cm³CF 4.5″ to CF 2.75″ reducer CF 4.5″ to CF 2.75″ reducerCRN450X275 · CF 4.5″ / CF 2.75″ · 143 cm³CF 2.75″ 6-port chamber CF 2.75″ 6-port chamberCU6-0275M · CF 2.75″ · 172 cm³CF 2.75″ blank flange CF 2.75″ blank flangeF0275X000N · CF 2.75″