Velflux

Velflux is a practical tool to estimate fluid flow velocity in pipes. Based on the continuity equation (Q = A × v), the app calculates flow velocity from pipe diameter and flow rate inputs.

Features:
Calculate flow velocity from diameter and flow rate
Support for water, diesel, and air with recommended velocity ranges
Built-in standard pipe sizes (DN15 to DN200)
Flow velocity evaluation: too low (sedimentation risk), economic range, too high (erosion risk)
Unit conversion: m³/h and L/s
Formula reference and velocity guide included
Works offline, no data storage