Nozzle Thickness Requirements in UG-45
How does the ASME Code determine how thick nozzles should be? While the standard code calculation for a cylinder under internal pressure often gives minimal requirements—frequently less than 1/16″ for…
Tag: design
In Situ Tower Skirt Replacement
How’d They Do That?! In Situ Tower Skirt Replacement Our final segment of “How’d They Do That” was an exciting project. A key client and manufacturer of personal care products…
Code Interpretations
Understanding ASME codes can be challenging, even though the code committees work to present information clearly. It can be difficult to convey the complex technical subject matter fully through text…
Code tolerances – Shell roundness
The ASME code gives tolerances for shell roundness in section UG-80, but this section is often misunderstood. UG-80 has two parts, (a) and (b). UG-80(a) applies to all vessels. It…
TEMA Data Sheets
TEMA’s Heat Exchanger Specification Sheets have been updated in the latest edition. Often referred to as TEMA data sheets, they can be used in multiple ways to communicate the requirements for…
Partial Head Replacement
For October’s segment of “How’d They Do That”, we will focus on a scary (?) problem: Chloride Stress Corrosion Cracking (Cl-SCC). While mobilized to replace several bottom head nozzles on…
