Boberry

CF Flanges

  • UHV Sealing Performance: Knife-edge + metal gasket design for ultra-low leak rates.
  • High Temperature Capability: Suitable for high-temperature bake-out in vacuum systems.
  • Precision Machined Surfaces: Smooth sealing faces and tight dimensional control.
  • Multiple Styles Available: Blank, bored, rotatable, non-rotatable, tapped and through-hole designs.
  • Standard & Custom Sizes: From small instrumentation ports to large chamber flanges.

Technical Specifications

Item Specification
Product Name CF Flanges (ConFlat Ultra-High Vacuum Flanges)
Size Range Standard CF sizes or according to customer drawing
Flange Types Blank, bored, rotatable, non-rotatable, tapped, through-hole
Sealing Type Knife-edge metal gasket (typically oxygen-free copper)
Typical Materials SS304 / 304L / 316L; other stainless or special alloys on request
Pressure / Vacuum Range High vacuum to ultra-high vacuum (system-dependent)
Temperature Capability Suitable for high-temperature bake-out (limited by material and gasket)
Surface Finish Precision-machined sealing faces for reliable gasket compression
Standards / Interfaces Compatible with common CF/UHV industry dimensions
Production Basis Manufactured according to customer drawings or specified CF standards

Customization Options

  • Size and Bore: Any standard CF size or fully custom diameter and bore per drawing.
  • Flange Style: Choice of blank, bored, rotatable, non-rotatable, tapped, or special flange designs.
  • Material Selection: 304 / 304L / 316L stainless steel or other alloys for special environments.
  • Surface Finish: Custom sealing-face finish and polishing level on request.
  • Hole Pattern & Threading: Custom bolt-hole count, pattern, and tapped/through-hole options.
  • Weld Preparation: Tailored weld neck lengths, bevels and tube transitions.

Applications

  • Ultra-high vacuum (UHV) chambers and components
  • Particle accelerators and beamlines
  • Synchrotron and neutron research facilities
  • Semiconductor processing equipment
  • Surface science and analytical instruments (XPS, AES, STM, etc.)
  • Thin-film deposition and sputtering systems
  • Cryogenic and space-simulation vacuum systems

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