Very good Sir! I installed a -011 and it seems to be right. Do you now if a buna 70 will suffice or should I go with a 90?antique diver wrote: ↑Mon Oct 12, 2020 8:44 amIf I remember correctly that should be a standard -011 oring, on a plug that was/is same as found on regulator first stages.
BigRed96 wrote: ↑Wed Oct 14, 2020 2:40 amVery good Sir! I installed a -011 and it seems to be right. Do you now if a buna 70 will suffice or should I go with a 90?antique diver wrote: ↑Mon Oct 12, 2020 8:44 amIf I remember correctly that should be a standard -011 oring, on a plug that was/is same as found on regulator first stages.
Thank You very much for the information!antique diver wrote: ↑Wed Oct 14, 2020 9:24 amBigRed96 wrote: ↑Wed Oct 14, 2020 2:40 amVery good Sir! I installed a -011 and it seems to be right. Do you now if a buna 70 will suffice or should I go with a 90?antique diver wrote: ↑Mon Oct 12, 2020 8:44 amIf I remember correctly that should be a standard -011 oring, on a plug that was/is same as found on regulator first stages.
USD used 70's on almost everything on their valves and regulators, including the port plugs and hose ends. A 90 would work fine on that plug too. Some think there is less chance for extrusion with 90's, but I never had an issue with that on their items. Regardless of questionable quality on some other items of that time the machining tolerances on valves and regulators were good, and orings stayed where they belonged.
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