I have seen many threads concerning the use of control valves on the discharge of centrifugal pumps or VFD's to control flow, but none of them fit my particular case. I am designing pumps that will send oil into a pipeline which could vary substantially in pressure. Several articles that I...
I am considering using some 7" OD x 1" W.T. 4130 tubing for a 10,000# piping application. The T.S. is 109,000 and the Y.S. is 93,000. Is there a disadvantage of having the T.S. and Y.S. this close together? That is the only thing I can see that could be detrimental, but I'm not a mechanical...
I am calculating the W.T. for 7" OD 10,000# prssure piping using 4130 mechanical tubing. Unless I am misunderstanding B31.3, Section K302.3.2, it appears that it is acceptable to use 2/3 the SMYS for the allowable stress. However, everyone I have conferred with uses 2/3 the SMYS or 1/3 the...
