): Every foot of pipe and every fitting creates friction. We use the to calculate this loss. If the pressure drop is too high, your pump or compressor won't be able to deliver the fluid to its destination. Reynolds Number (
Based on recommended velocity limits.
(Where P = Pressure, S = Allowable Stress, t = Wall Thickness, and D = Outside Diameter) Pressure Classes (Flanges) ): Every foot of pipe and every fitting creates friction
Once you know the size, you must ensure the pipe won't burst under pressure. This is where and Wall Thickness calculations come in, primarily governed by codes like ASME B31.3 (Process Piping). The Barlow’s Formula Reynolds Number ( Based on recommended velocity limits
To prevent erosion or excessive noise, liquids typically flow between 1–3 m/s, while gases can reach much higher velocities. Pressure Drop ( ΔPcap delta cap P The Barlow’s Formula To prevent erosion or excessive
Sum up the losses from straight pipe and all fittings.
Ensure the source pressure minus the losses meets the required destination pressure.
