Module 3 Process Piping Hydraulics Sizing And Pressure Rating Pdf
Module 3: Process Piping Hydraulics, Sizing, and Pressure Rating
Based on technical curriculum for ,
4. Pressure Rating & Pipe Wall Thickness
Where:
- ( t ) = minimum required wall thickness (inches or mm)
- ( P ) = internal design pressure (psig)
- ( D ) = outside diameter of pipe (in)
- ( S ) = allowable stress from ASME B31.3 Table A-1 (psi)
- ( E ) = quality factor (1.0 for seamless pipe; 0.85 for ERW)
- ( W ) = weld joint strength reduction factor (usually 1.0)
- ( Y ) = coefficient for wall thickness (0.4 for ferrous materials up to 900°F)
For liquid piping systems, the optimal pipe diameter balances the cost of the pipe + installation against the lifetime cost of pumping. An empirical formula (Peters & Timmerhaus) gives a first estimate: Module 3: Process Piping Hydraulics, Sizing, and Pressure
ASME B31.3
Are you diving into or preparing for your piping engineering certification? Module 3 is where the math meets the metal. We’ve broken down the essential PDF highlights to help you size systems with confidence. 1. Hydraulic Sizing Fundamentals 📏 ( t ) = minimum required wall thickness
