Installing a Code (U stamped) half-pipe jacket on the outside of a vessel. What part of Section VIII-1 determines the weld along the two sides of the half-pipe? Can it be fillet only, or does it need to be beveled? There are lots of sections that could apply, Appendix EE is there too.
Anybody...
Is the B31.1 2004 with 2005 Addenda the most current (mandatory) or is there a 2006 Addenda? I know the 2007 is not due out until early next year.
Thanks.
Has anyone read or used this book that can give me their opinion? It is on Amazon but without any customer reviews.
Power Boiler Design, Inspection, and Repair
Mohammad A. Malek.
I would appreciate any feedback from someone who if familiar with it.
Thanks.
Section II part D the notes to table 1A, note (d) talks about restricted shear applications such as dowel bolts where failure can occur without reduction of area using only 80% of the allowable stress. When you have an attenuator cylinder with a machined lug or ring, where the ring then contacts...
Wondering if any one has purchased or used Moss's book titled "Pressure Vessel Design Manual" and if they thought it was useful? Looking at the third addition to add to my library, but don't know much about it except TOC and index you can see on Amazon. Thanks.
My memory told me the NBIC says if you are altering an older Code vessel, you must either use the Edition/Addenda of the original vessel, or the current Ed./Ad, but I cannot find that info in the NBIC. Any help?
Thanks.
Can you use a Nat'l Pipe Bureau WPS for ASME PP welding? Normally every ASME certificate holder must qualify their own WPS or purchase AWS Standard Welding Procedure referenced in Section IX App. E. Today I heard of a shop that uses pipe bureau procedures only with a PP stamp.
Supposed I have two cylinders layered, with staggered seams, and each has a seam eff. of 0.70 (70%). How do you figure the combined or total efficiency of the cyliner? Is (1.0 + 0.7) / 2 =0.85 correct?
Or for 4 or 10 layers?
I know the Guidebook for Design my Farr & Jawad uses something like...
