Blog
Guides, tutorials, and answers to common questions about pipe network simulation and hydraulic engineering.
How to Read a Steam Table (With Worked Examples)
What hf, hfg and hg mean, saturated vs superheated tables, steam quality, interpolation, and the gauge-vs-absolute pressure trap — with worked examples.
Isothermal vs Adiabatic Gas Flow in Pipes
When a gas can be treated as incompressible (the 10% rule), how the isothermal and adiabatic models differ, choking, and a practical decision guide.
Cv vs Kv: Valve Flow Coefficients & How to Convert
Cv and Kv explained — what each valve flow coefficient means, the conversion formulas (Kv = 0.865·Cv), US vs UK Cv, valve sizing, and mistakes to avoid.
Free EPANET Alternatives (2026): Browser & Desktop
Looking for an EPANET alternative? A fair 2026 rundown of free and commercial pipe-flow simulators — SimuPipe, AFT, Pipe-Flo, PIPESIM — and how to choose.
How to Calculate Pressure Drop in Pipes (Darcy-Weisbach)
A step-by-step guide to pressure drop and head loss with the Darcy-Weisbach equation — Reynolds number, friction factor, minor losses, worked example.
Flange Gasket Selection — Practical Guide
How to pick the right gasket for a flanged pipe joint. Material types, P-T limits, facing compatibility, and service-by-service guidance.
Orifice Plates: How They Work, When to Use
A practical guide to orifice plate flow measurement — how they work, the ISO 5167 standard, beta ratio selection, and common installation mistakes.
Darcy-Weisbach vs Hazen-Williams: Which to Use
A practical comparison of the two most common pipe friction models, when to use each, and how they differ in accuracy and applicability.
Understanding Control Valve Sizing with IEC 60534
Learn how the IEC 60534 standard governs control valve sizing for liquid and gas service, including Cv/Kv, choked flow, and the expansion factor Y.
How to Import EPANET .inp Files into SimuPipe
Step-by-step guide to importing EPANET hydraulic models into SimuPipe, including supported features, unit conversion, and common issues.
What is Pipe Network Simulation? Engineer's Guide
An introduction to pipe network simulation: what it does, who uses it, and how modern tools like SimuPipe make hydraulic analysis accessible.