[ P = \frac2 \cdot S \cdot tOD ]
Module 3 of process piping training (specifically from courses like PDHengineer and various ASME B31.3 curriculum modules) focuses on the core engineering calculations required to select the correct pipe size and material strength for safe fluid transport. 1. Hydraulic Sizing Fundamentals [ P = \frac2 \cdot S \cdot tOD
The junior engineer sized the pipe for 8 ft/sec (water standard) using an 8-inch schedule 40. The hydraulic calculation shows a pressure drop of 45 psi. However, the exclusive PDF reveals a hidden trap: the pressure drop at the discharge of the pump exceeds the flange rating of the heat exchanger inlet. The solution? Upsize to 10-inch Sch 40, dropping velocity to 5 ft/sec and delta-P to 12 psi, while re-checking the support span. The hydraulic calculation shows a pressure drop of 45 psi