47 Pipe Calculations
Every Pipefitter
Must Know

The field reference your apprenticeship didn't hand you on day one. Every formula with a worked example and the standard it comes from.

• Rolling offset, compound angles, simple offset — SET, Travel, Run, all in one page
• Elbow C2F and BOP tables — LR and SR, every NPS from 1" to 12" (ASME B16.9)
• Barlow MAWP, required wall thickness, hydrostatic test pressure (ASME B31.3)
• Pipe weight, cross-section area, NPS to OD table (ASME B36.10M)
• Saddle height, cope layout, reinforcement pad area — branch calculations
• Shrink/gain multipliers by elbow angle — the table most instructors never show you
• Flange bolt patterns and gasket data (ASME B16.5)