I recently argued with my QA department about hydro testing Slip-On flange to a pipe. It is my understanding that all welds must be hydro tested, even though the slip-on flanges partially cover the pipe and one of the welds isn't a boundary weld, while the other is a fluid boundary weld. (We...
Hello,
My company recently bought the books for WRC 537, which is identical to WRC 107, and I am familiarizing myself with the calculations.
My question is during the selection of Nx*T/P and Mx/P, ect...which graphs are appropriate to use? The table listed gives graphs for some standard...
Hello,
I was hired at my company about a year ago as a mechanical/thermal design engineer. Long story short, there was a good engineering department of the company 3 years ago. Then management had the idea of moving the engineering to overseas, which has proven to be a very bad decision. So...
I am looking over a proposal for our company regarding a pressure vessel. The customer is stating that A516 Gr.70 does not need to be Charpy tested with a thickness less than 25mm for a design temperature of -50°C. I look at VIII Fig. UCS-66M and the lowest that A516 Gr.70 goes is to curve B...
Hello,
I have a question regarding the area reinforcement to B31.3 (Process Piping). We have a product that is directly in the piping system at high pressure (and generally temperatures of atmosphere), and is placed on the discharge side of the pump. The product is essentially a sphere with...
