I am considering use of Cheng Rotation vanes in suction of top entry/discharge pumps. Would appreciate any comments on experience with this device.
JPG
I need a 1974 (or earlier) edition of B16.5 to determine allowable pressure of 300# A181-1 flanges in an old existing refinery hydrogen pipeline. Can anyone help?
I am attempting to rate a piping system that was designed to B16.5 1974 and uses A181-1 flanges. A181-1 is no longer used (replaced with A105. Current edition of B16.5 does not include data on A181-1. I need a copy of the 1974 or earlier edition to determine allowable pressure for 300# A181-1...