Dowty seals

[splmum]

Just a question about these 'dowty' seals, as referred to in another thread

http://www.revataengineering.com/interface/bonded-dowty-seal-bdsc.jpg

When these seal, the two surfaces come together squashing the rubber seal only as far as the metal sleeve, and the metal sleeve then acts as a retainer to stop the rubber seal blowing out.

Have I got it correct, if so I can definitely see an advantage. Far better than a rubber 'O' ring.

 

[Jon Olds]

That's as I understand them also

 

[PobodY]

I'd suggest it doesn't stop the rubber perishing over time, but it looks like it would seal against much higher pressure.

 

[The Doc]

That is the idea of them ,they tend to be used in hydraulic applications and withstand 20bar pressure and upwards