MDC's 8" Outer Diameter (203.2 mm) Conflat® (CF) flange, manufactured from 304 stainless steel, is designed for ultrahigh vacuum (UHV) systems where high leak integrity, temperature stability, and repeatability are critical. With a nominal flange size of DN250CF, this precision-machined flange is available in both rotatable and nonrotatable configurations, offering flexible alignment and mounting options in complex assemblies.

Key Features

UHV Performance: Rated to 1x10⁻¹³ Torr, ideal for high-integrity vacuum sealing
High Temperature Capability: Operates reliably at up to 450°C (842°F)
Material: Constructed from 304 stainless steel for corrosion resistance
Design Options: Available in both rotatable and nonrotatable styles
Gasket Compatibility: Supports OFE copper and Viton® elastomer gaskets
Standard Interface: Fully Conflat® compatible
Bolt Hole Options:
Through hole flanges: 20 holes drilled to 0.332" (8.43 mm)
Tapped flanges: 20 holes threaded to 0.312-24 UNF

Applications

MDC's 8" CF flange is widely used in UHV systems found in semiconductor fabrication, thin-film coating (PVD/CVD), surface science, synchrotron beamlines, fusion research, and aerospace simulation. Its reliable sealing performance, thermal durability, and robust material construction make it ideal for scientific labs, national research facilities, and industrial vacuum environments requiring precision and longevity under extreme conditions.