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Composite washers/seasls

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Will_D:
What is the correct name for a metal washer with an inset O-ring. Often used to seal a gas regulator (CO2) onto a bottle of gas.

The idea is that you cannot over compress the O-ring.

awemawson:
Dowty Seal or Bonded Seal

Pete.:
Yes dowty seal, we use hundreds of them at work.

Lew_Merrick_PE:

--- Quote from: Will_D on December 04, 2019, 11:42:26 AM ---What is the correct name for a metal washer with an inset O-ring. Often used to seal a gas regulator (CO2) onto a bottle of gas.

The idea is that you cannot over compress the O-ring.
--- End quote ---
Hi Will  --  For fairly low-presure applications a "Face Seal Washer" was the American DoD name.  For higher pressure applications a "custom o-ring seal" washer was specifically designed.  [Mind you, I have designed "custom o-ring seal" washers to contain 65 ksi pyrotechnic gasses.]  --  Lew

Will_D:
Many thanks to all for this info!

May the Homebrewers of Ireland never suffer CO2 leaks again!!

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