Author Topic: Composite washers/seasls  (Read 172 times)

Offline Will_D

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Composite washers/seasls
« 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.
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Offline awemawson

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Re: Composite washers/seasls
« Reply #1 on: December 04, 2019, 11:53:28 AM »
Dowty Seal or Bonded Seal
Andrew Mawson
East Sussex

Offline Pete.

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Re: Composite washers/seasls
« Reply #2 on: December 04, 2019, 11:57:21 AM »
Yes dowty seal, we use hundreds of them at work.

Offline Lew_Merrick_PE

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Re: Composite washers/seasls
« Reply #3 on: December 04, 2019, 12:30:31 PM »
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.
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

Offline Will_D

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Re: Composite washers/seasls
« Reply #4 on: December 04, 2019, 02:01:57 PM »
Many thanks to all for this info!

May the Homebrewers of Ireland never suffer CO2 leaks again!!
Engineer and Chemist to the NHC.ie
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