MDC’s Multiport Multi-Mini Flange fittings are compact, high-performance vacuum components designed to provide multiple access points in tight UHV environments. Featuring a central 2-3/4" ConFlat® flange (DN40CF / 70 mm OD) with five tapped DN16CF mini flanges (1-1/3", 34 mm OD) arranged around the face, this fitting allows integration of multiple instruments, feedthroughs, or diagnostic tools in a single assembly. Constructed from 304 stainless steel drawn and welded vacuum tubing, each unit is fully electropolished to deliver excellent vacuum integrity, corrosion resistance, and minimal outgassing. The assembly is UHV rated to 1x10⁻¹³ Torr and can withstand bake-out temperatures up to 450°C (842°F). Studs are required for mounting on the main flange, ensuring secure, leak-tight installation in demanding vacuum systems.

Industry Applications

The Multiport Multi-Mini Flange is ideal for applications requiring dense port configurations in UHV systems such as surface science instruments, vacuum spectroscopy systems, semiconductor tools, and compact beamline components. It supports mounting of sensors, electrical feedthroughs, and fiber-optic or fluid lines without the need for larger chamber expansions. The compact footprint and tapped mini flanges allow for highly efficient space utilization in cleanroom environments, where minimizing contamination and maximizing instrumentation access are critical. With its electropolished finish and high thermal and vacuum ratings, this fitting is a go-to solution for precision research and industrial vacuum systems.