MDC’s 16-1/2" Outer Diameter (419.1 mm) Conflat® (CF) flange, crafted from corrosion-resistant 304 stainless steel, is specifically designed for large-scale ultrahigh vacuum (UHV) systems where thermal resilience, repeatable sealing, and mechanical strength are vital. Its large flange size supports complex UHV assemblies and ensures leak-tight performance under extreme conditions.

Key Features

UHV Performance: Leak-rated to 1x10⁻¹³ Torr (1.33×10⁻¹¹ Pa)
High Temperature Rating: Supports bake-outs up to 450°C (842°F)
Material: Built from 304 stainless steel for vacuum integrity and corrosion resistance
Design Flexibility: Available in rotatable and nonrotatable geometries
Gasket Compatibility: Accepts OFE copper and optional FKM elastomer seals
Standard Interface: Fully Conflat® compatible for universal vacuum system integration
Bolt Hole Options:
Through-hole flanges: 36 holes drilled to 0.390" (9.91 mm)
Tapped flanges: 36 holes threaded to 0.375-24 UNF
Outer Diameter: 16.5" (419.1 mm)

Applications

The 16.5" CF flange is ideally suited for large-format UHV systems in fusion energy research, particle physics, high-vacuum space simulation, synchrotron instrumentation, semiconductor vacuum chambers, and advanced materials analysis. Its reliable sealing performance, wide compatibility, and durable construction make it a trusted component in national labs, aerospace facilities, and high-precision vacuum environments.