Pipe Sizing by Velocity
Pick a pipe diameter for a flow rate and target velocity and check the actual velocity in standard DN sizes, free online.
À propos de cette calculatrice
Required inside diameter D = √(4Q ÷ (π·v)). Typical design velocities: 1–2 m/s for pump suction, 1.5–3 m/s for discharge lines and water supply, up to 5 m/s for short runs. The nearest standard nominal size above the calculated diameter is shown with its actual velocity.