CF 6.0″ × CF 3.375″ reducing 4-way cross

2 × CF 6.0″, 2 × CF 3.375″ (DN50CF) ConFlat flanges, 1,861.9 cm³ of internal volume and 899.6 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	× CF 3.375″ reducing 4-way cross
Flanges	2 × CF 6.0″, 2 × CF 3.375″ (DN50CF) ConFlat (CF), knife-edge, copper gasket
Ports	4
Internal gas volume	1,861.9 cm³ (1.862 L)
Wetted surface area	899.6 cm²
Material	Stainless 304
Overall size	152 × 219 × 215 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.