I don't know about He, but some high vacuum systems use fittings with a couple
of machined sharp bumps in a ring on each side, with a flat copper disc sealed
in between with the sharp bumps pressing into the malleable copper.
One use per "gasket" but they seem to work well, and copper recycles fine...
George William Herbert
Sent from my iPhone
On Aug 19, 2015, at 9:12 PM, Rick Dickinson <rtd@xxxxxxxxxxxx> wrote:
Anthony,
Are those available through McMaster? I don't remember seeing that option....
<cheeky_grin />
Cheers,
Rick Dickinson
On August 19, 2015 8:34:01 PM PDT, Anthony Cesaroni <acesaroni@xxxxxxxxxxx>
wrote:
Wouldn't designing your system with stainless steel O rings eliminate
the issue? We use them on our oxidizer flanges including cryogenic and
they seem to work quite well.
Anthony.
Sent from my iPhone
--
Sent from my Android device with K-9 Mail. Please excuse my brevity.