Calculators
Velocity, Reynolds number, friction pressure drop, pressure drop per 100 ft, and design checks for an incompressible liquid line with a user-specified pipe ID. Uses Darcy–Weisbach with Swamee–Jain.
Method: Darcy–Weisbach with Swamee–Jain friction factor. Typical economic velocity 3–15 ft/s for liquid service; typical ΔP/100 ft target 0.3–1.0 psi for pumped lines. References: Crane TP-410; Perry’s Handbook Section 6.
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