Pipe Pressure Drop Calculator: Liquid, Gas, Steam, Slurry & Two-Phase (2026)

Aienginear Pipe Pressure Drop Calculator graphic showing a pipe with a valve, the falling pressure line from friction and fitting losses, the Darcy-Weisbach equation and a Moody chart inset

Free pipe pressure drop calculator for liquid, gas, steam, slurry and two-phase flow. Darcy-Weisbach, Colebrook-White, fittings, MMSCFD, pump power, worked examples and printable tables.

Heat Exchanger Sizing Calculator | Shell & Tube Design Tool

The heat exchanger sizing calculator estimates the heat duty, LMTD and correction factor F, required surface area and a preliminary shell-and-tube layout for sensible, condensing and boiling services. It adds Bell-Delaware shell-side checks, pressure drop, fouling, TEMA screening, cost optimisation and a datasheet export. How heat exchanger sizing works Sizing starts from an energy balance … Read more

FlowStack: Process & Hydraulics Calculators (Pipe Sizing, Pressure Drop, Pumps & NPSH)

FlowStack process and hydraulics calculators by Aienginear: properties, line sizing, pressure drop, pumps, valves and meters

FlowStack by Aienginear: 13 free process and hydraulics calculators for line sizing, Darcy-Weisbach pressure drop, pump NPSH, control valves (IEC 60534) and ISO 5167 flow meters, with a quick line and NPSH checker.