Friction Loss Calculator
for Sanitary Process Piping
Estimate pressure drop in 3-A and ASME BPE sanitary tube systems. Accounts for pipe friction, fittings, elevation change, and additional system losses.
Estimate system pressure drop in seconds
When sizing a pump for a sanitary process line, you need to know the total head your system demands — friction from the pipe run, losses through fittings and valves, and the pressure required to lift fluid to a higher elevation. This calculator handles all of it in one place, using 3-A standard tube dimensions and the Darcy-Weisbach equation.
Enter your tube size, flow rate, pipe length, fittings count, and vertical rise. The calculator returns individual loss components and total system head in pressure units and equivalent head — PSI / feet of head or kPa / meters of head.
Sanitary Friction Loss Calculator
Darcy-Weisbach · 3-A tube dimensions · Colebrook friction factor
Positive = pumping uphill · Negative = downhill (reduces required head)
Use for heat exchangers, strainers, vessels, nozzles, or other known pressure drops not listed above.

