Optimizing O-Ring Groove Dimensions for Seals: Tips and Considerations

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SUMMARY

This discussion focuses on optimizing O-ring groove dimensions for various sealing applications, including static, dynamic, and face sealing. Ed Parker's O-ring guide is highlighted as a valuable resource for BS and ISO metric dimensions, accessible via their website. For large or special O-rings, contacting Parker directly is recommended to ensure availability. Additionally, the use of dove-tail O-ring grooves and polished seating surfaces is emphasized for enhancing performance in vacuum applications, along with the recommendation to use Dow Vacuum Grease.

PREREQUISITES
  • Understanding of O-ring sealing applications
  • Familiarity with BS and ISO metric dimension standards
  • Knowledge of dove-tail O-ring groove design
  • Experience with vacuum sealing techniques
NEXT STEPS
  • Research Ed Parker's O-ring guide on their official website
  • Learn about dove-tail O-ring groove design principles
  • Investigate the properties and applications of Dow Vacuum Grease
  • Explore best practices for polishing seating surfaces in vacuum applications
USEFUL FOR

Engineers, designers, and technicians involved in sealing applications, particularly those working with O-rings in vacuum environments or requiring precise groove dimensions.

Davieslad
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Hi,

I need to find the dimensions for O ring grooves for different size o rings, for static, dynamic and face sealing. Does anyone have a web link for these for BS and/or ISO metric dimensions. All the ones i can find are subscription ones.

Many thanks

Ed
 
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Parker seals have an excellent O ring guide with their catalogue
Go to parker.com -> literature -> o rings (it's a Javascript thing you can't link to)

For special/very large o rings they make to order so call them about availability before you start designing the massive vacuum chamber.
 
That is bloody marvellous! Its about 100 time better than i need, and i never would have found it by myself! Thank you very much!
Ed
 
When you get seals that are hard to get to make sure to consider dove-tail O-ring grooves. I did this on a piston valve and it does wonders. Also, for vacuum applications, make sure that the seating surfaces are nicely polished. Mainly scratches across the groove are bad. Also use Dow Vacuum Grease.
 

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