CF 13.25″ to CF 6.0″ zero-length reducer

1 × CF 6.0″, 1 × CF 13.25″ (DN250CF) ConFlat flanges, 299.7 cm³ of internal volume and 690.9 cm² of wetted surface.

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

Specifications

Type	To CF 6.0″ zero-length reducer
Flanges	1 × CF 6.0″, 1 × CF 13.25″ (DN250CF) ConFlat (CF), knife-edge, copper gasket
Ports	2
Internal gas volume	299.7 cm³ (0.3 L)
Wetted surface area	690.9 cm²
Material	Stainless 304
Overall size	336 × 336 × 28 mm
Outgassing (unbaked, 1 h)	6.0e-9 Torr·L/s/cm²
Simulation-ready	Yes, 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.