O-Rings (Silicone)

These replacement elastomeric o-rings are used (in conjunction with a centering ring -- not included) for sealing ISO flanges. The ISO flange (also called Large ISO) is used for HV chamber ports and is available in two distinct styles; ISO-K which uses clamp fasteners and ISO-F which uses nut and bolt fasteners.

O-Rings Feature:

  • O-Rings available in Viton (fluorocarbon), Buna-N (nitrile rubber), and silicone materials
  • The more popular o-ring sizes for vacuum use are listed below
Flange Size Material O-Ring ID O-Ring
Cross Section
Weight
kg
ISO63 Silicone 72.4 5.3 0.25
ISO80 Silicone 85.1 5.3 0.25
ISO100 Silicone 104.1 5.3 0.25
ISO160 Silicone 151.9 5.3 0.25
ISO200 Silicone 215.4 5.3 0.25
ISO250 Silicone 266.2 5.3 0.25
ISO320 Silicone 317 7 0.11
ISO400 Silicone 393.2 7 0.11
ISO500 Silicone 494.3 7 0.11
ISO630 Silicone 633.5 7 0.11

 

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