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CF 8.0″ 4-way cross 3D model
Crosses

CF 8.0″ 4-way cross

4 × CF 8.0″ ConFlat flanges, 7,413.1 cm³ of internal volume and 1,921.4 cm² of wetted surface.

Build a system with this part

Its internal volume and surface area feed the pumpdown simulation, and its 3D characterization sets how it affects pumping speed.

Specifications

Type4-way cross
Flanges4 × CF 8.0″ ConFlat (CF), knife-edge, copper gasket
Ports4
Internal gas volume7,413.1 cm³ (7.413 L)
Wetted surface area1,921.4 cm²
MaterialStainless 304
Overall size279 × 279 × 202 mm
Outgassing (unbaked, 1 h)6.0e-9 Torr·L/s/cm²
Simulation-readyYes, characterized from its 3D geometry

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 8.0″ flanges

CF 8.0″ 6-port box chamber CF 8.0″ 6-port box chamberCF 8.0″ · 6,105 cm³CF 8.0″ 6-port box chamber CF 8.0″ 6-port box chamberCF 8.0″ · 6,143 cm³CF 10.0″ to CF 8.0″ reducer CF 10.0″ to CF 8.0″ reducerCF 10.0″ / CF 8.0″ · 2,224 cm³CF 13.25″ to CF 8.0″ zero-length reducer CF 13.25″ to CF 8.0″ zero-length reducerCF 13.25″ / CF 8.0″ · 577 cm³CF 10.0″ to CF 8.0″ zero-length reducer CF 10.0″ to CF 8.0″ zero-length reducerCF 10.0″ / CF 8.0″ · 475 cm³CF 8.0″ zero-length reducer CF 8.0″ zero-length reducerCF 8.0″ · 416 cm³CF 8.0″ to CF 3.375″ zero-length reducer CF 8.0″ to CF 3.375″ zero-length reducerCF 8.0″ / CF 3.375″ · 68 cm³CF 8.0″ to CF 4.5″ reducer CF 8.0″ to CF 4.5″ reducerCF 8.0″ / CF 4.5″ · 388 cm³