ISO-KF Centering Rings and O-Rings

The ISO-KF flange system utilizes a single clamp system. This is an economical and reusable solution for rapid and frequent assembly and disassembly.

The ISO-KF flanges can operate in high vacuum environments to pressures in the range of 10-8mbar (10-8torr).

Centering Ring, 304 SS/316L SS
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Edge Welded Bellows are typically designed to meet specific demands. In order to specify a custom edge welded bellow, we would need the following information:
  • Centering rings available in:
    • 1.4301/304L SS
    • 1.4404/316L SS
    • Aluminum
    • Teflon
  • O-Rings available in:
    • Vitcon®
    • Silicon®
    • Buna®
    • EPDM®
    • Neoprene®
Centering Rings, Aluminum
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Edge Welded Bellows are typically designed to meet specific demands. In order to specify a custom edge welded bellow, we would need the following information:
  • Centering rings available in:
    • 1.4301/304L SS
    • 1.4404/316L SS
    • Aluminum
    • Teflon
  • O-Rings available in:
    • Vitcon®
    • Silicon®
    • Buna®
    • EPDM®
    • Neoprene®
Centering Rings, Teflon
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Edge Welded Bellows are typically designed to meet specific demands. In order to specify a custom edge welded bellow, we would need the following information:
  • Centering rings available in:
    • 1.4301/304L SS
    • 1.4404/316L SS
    • Aluminum
    • Teflon
  • O-Rings available in:
    • Vitcon®
    • Silicon®
    • Buna®
    • EPDM®
    • Neoprene®
Adaptive Centering Ring
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Edge Welded Bellows are typically designed to meet specific demands. In order to specify a custom edge welded bellow, we would need the following information:
  • Centering rings available in:
    • 1.4301/304L SS
    • 1.4404/316L SS
    • Aluminum
    • Teflon
  • O-Rings available in:
    • Vitcon®
    • Silicon®
    • Buna®
    • EPDM®
    • Neoprene®
Outer Centering Ring
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Ideal for glass
  • Ideal for internal pressure
Outer Centering Ring with Inner Ring
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Ideal for use when there is internal pressure and vacuum
Filter Centering Ring, 304 SS
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Stainless Steel wire mesh filter. Open area = 1mm x 1mm (0.04 x 0.04 inch)
Sinter-Filter Centering Ring
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Bronze Sintered filter. Open area = 0.02mm x 0.02mm (0.0008 x 0.0008 inch)
Metal Seal Ring
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
Ultra Seal
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • The external support ring and the seal are two separate items. The external support ring can be re-used, the seal-ring can not be re-used
Helicoflex
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Heatable up to 280oC/536oF (to 700oC/1292oF on request)
Centering Ring without O-Ring, 304 SS
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
O-Rings
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request
  • Price per set of 10
Outer Support Ring
  • HV rated to 10-8 mbar/torr
  • Bakeable to 200oC/390oF
  • Clamp fastened
  • Elastomer o-ring sealed
  • ISO compatible
  • Custom materials and sizes available upon request