A pipe rated for 1,500 psi at 100°F may only hold 900 psi at 600°F. Module 3 emphasizes the ASME B31.3 stress tables. You must apply a derating factor based on the material’s yield strength at operating temperature.
Most students breeze through material selection and basic layout. Module 3 is where theory collides with physics. This module forces you to answer three brutal questions: A pipe rated for 1,500 psi at 100°F
Without mastering these three pillars, your piping system is either a financial disaster or a safety hazard. Without mastering these three pillars, your piping system
To find the pipe diameter ($D$) based on a chosen velocity ($v$): To find the pipe diameter ($D$) based on
$$D = \sqrt\frac4Q\pi v$$
Note: After calculation, you must select the next standard commercial pipe size (e.g., calculating 3.8 inches leads to selecting a 4-inch schedule pipe).