Sf — Pressure Drop Online-calculator

Choose pipe material – "Carbon Steel" – and select "2 in Schedule 40". The calculator automatically pulls the inner diameter (2.067 inches) and roughness (0.0018 ft or 0.045 mm).

Remember: The accuracy of the output depends entirely on the quality of the input. Always verify fluid properties, pipe inner diameters, and roughness values. Use the calculator as a design tool, not a black box. And for mission-critical systems (e.g., high-pressure steam or toxic chemicals), always perform a sanity check via manual approximation or a second calculation method. sf pressure drop online-calculator

Enter flow rate (100 GPM).

Enter the temperature (45°F). The calculator auto-fills density (62.4 lb/ft³) and viscosity (1.3 cP – slightly higher than room temp). Choose pipe material – "Carbon Steel" – and

Add fittings. Click "Elbow 90° LR" x 4, "Gate valve (full open)" x 1. The calculator sums the K-factors or uses the equivalent length method. Always verify fluid properties, pipe inner diameters, and

Input length (200 ft) and elevation change (if any). For horizontal runs, elevation is zero.