Gas Velocity Calculator
Calculates gas velocity with erosional velocity check per API RP 14E, sonic velocity, Mach number, and Reynolds number. Includes configurable C-factor for service conditions. Supports three calculation modes: velocity from flow, optimal diameter sizing, and flow from velocity.
Calculation Mode:
Calculate Velocity from Flow
MMSCFD
in
Calculate Diameter from Velocity
MMSCFD
ft/sec
Calculate Flow from Velocity
ft/sec
in
Operating Conditions
psig
°F
air=1
-
Service Parameters
Calculated Parameters
Velocity Analysis:
Actual Velocity (ft/s), Erosional Velocity Limit (Ve), Mach Number (Sonic Ratio).
Flow Physics:
Reynolds Number, Flow Regime (Laminar/Turbulent), Gas Density (lb/ft³).
Sizing Outputs:
Optimum Pipe Diameter, Minimum Wall Thickness, Mass Flow (lb/hr), Energy Flow (MMBtu/hr).
📚 Learn the Theory
Learn erosional velocity limits, sonic velocity, pressure drop, and API RP 14E criteria