LDS Vacuum 450-250-R Rotatable CF Flange

LDS Vacuum 450-250-R 4.50″ OD × 2.50″ ID Rotatable CF Flange, 304 SS, 8-Bolt-Through, UHV Hardware

Bullet Points:

• 4.50″ outer diameter (OD) ConFlat (CF) flange, compatible with DN63 CF / CF450 series.

• 2.50″ tube/bore size (≈ 2.44″ internal bore) for medium-size vacuum system runs.

• Rotatable flange face (“-R” model) allows system alignment after weld/installation.

• 304 stainless steel construction for UHV reliability.

• 8 through-bolt holes (~0.332″ diameter) on a ~3.63″ bolt circle.

• Suitable for ultra-high vacuum (metal seal) or high vacuum (o-ring) systems: typical vacuum range to ~1×10⁻¹³ mbar.

• Temperature range: –200 °C to +450 °C (metal seal) — ideal for bake-out capable systems.

• Applications: vacuum chambers, UHV systems, research lab vacuum plumbing, scientific instrumentation, semiconductor equipment.