I also hope we find a copy. There was a copy here at one point but it "disappeared". We are supposed to have a copy on hand because we have a lot of piping designed and installed using this standard (and B31.1-73)
Thanks for everyone's help.
jt: B31.1-73
rconner:
Thanks for your reply. Sounds like you have access to the ratings table.
I'm using other resources to obtain the document. In the meantime, would I be asking too much if you could provide me with the ratings of Class 150 (A105) at all the listed temperatures? Or better...
I stand corrected on the pressures & temperatures in question. The drawings have conflicting information.
After much digging I managed to determine that the exhaust piping is sectioned into two different design conditions.
From the tubine exhaust to a de-superheater (approx 30 Ft.) the piping...
Here is my situation:
Exhaust piping on a 450 to 150 psi reducing turbine.
Designed & built in 1978 using B31.1-73, B16.5-73, B16.9-71, B16.34-73
Inlet design press. 450 psig @ 750 ºF
Outlet design press. 150 psig @ 750 ºF
(I did mention 700F in my earlier post)
The turbine exhaust has a 300#...
Thanks for the fast response jt.
The mat'l is A105.
I have the 1981 standard and as I suspected, the pressure ratings did not change between '73 and '81.
mcd
Can anyone provide me with rated ceiling values from the 1973 ANSI B16.5? Specifically, the max working pressure for class 150 and 300 up to 700ºF.
Thanks in advance.
