): The specific pressure required at the outlet (e.g., a showerhead typically needs 20–30 PSI). Convert PSI to feet of head by multiplying by . Friction Head ( Hfrictioncap H sub f r i c t i o n end-sub
hf=10.67×L×Q1.852×C-1.852×d-4.87h sub f equals 10.67 cross cap L cross cap Q to the 1.852 power cross cap C to the negative 1.852 power cross d to the negative 4.87 power = Friction loss (meters) = Equivalent length of pipe (meters) = Volumetric flow rate (
Mariana was a junior mechanical engineer at a mid-sized MEP firm. At 4:45 PM on a Friday, her project manager dropped a stack of marked-up drawings on her desk: "High-rise apartment building. Water pressure drops on floors 12–15. Residents are complaining. I need booster pump head calculation by Monday — and don't just guess. Use an Excel sheet so we can adjust flow rates later." booster pump head calculation xls
For a simple system:
Summate the components in your final calculation box. =Static Elevation Rise (B4) + SUM(Segment Loss Column) + Residual Pressure Head (Formula C) Formula E: Pump Brake Horsepower (BHP) ): The specific pressure required at the outlet (e
This is the required operating pressure at the end of the line, typically needed for showers, irrigation, or industrial processes. 3. The Formulas to Use in Excel
To make your booster pump calculator truly professional, you should add the following advanced features to your workbook: At 4:45 PM on a Friday, her project
= (Static + Friction + Discharge pressure) – Suction pressure = (15 + 5 + 30) – 10 = 40 m
Accurate pump head calculation prevents system failure, pipe damage, and high energy bills. Designing a water booster system requires matching the pump to your piping network perfectly. An undersized pump causes low pressure at the highest fixtures. An oversized pump damages valves and wastes power.
), as friction losses increase significantly with higher velocities. Iwaki America Inc. Fixture Unit Method: