I would love to use some hard or soft metal o-rings but I can't find
them anywhere in small quantities. I'm going to try using an AN901-6A
(aluminum crush washer) for my next LN2 cold test. A publication I
found specifically mentioned not to use them with boss ports but with my
dry testing, it looked good to me and it might good enough work for cryo
at low pressures. K-Seals would be ideal but I was unable to purchase
them in small quantities the last time I tried.
-Bob
On 08/19/2015 10:34 PM, Anthony Cesaroni 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
On Aug 19, 2015, at 11:19 PM, Troy Prideaux <GEORDI@xxxxxxxxxxxxxxxx <mailto:GEORDI@xxxxxxxxxxxxxxxx>> wrote: