Pumps Africa – Sprinkler Pipeline & Pump Duty (≤10% pressure drop)
Enter your sprinkler duty and spacing. The tool will pick the smallest pipe size that keeps the pressure drop between the first and last sprinkler ≤ 10% and calculate the required pump duty. Sprinkler operating pressure is entered in meters (m).
Click + Add Sprinkler to add sprinkler #2, then enter the distance from #1 to #2. Keep adding sprinklers as needed; each new input will ask for the distance from the previous sprinkler.
Results
1
0.00 m³/h
–
–
0.0 m
0%
0.0 m
0.00 m³/h @ 0.0 m
0.00 kW
Losses use Hazen–Williams (C=150 default). Pressure class is chosen to exceed operating pressure (sprinkler head + line head loss) with a small safety margin. Adjust values in the config section if needed.
Design irrigation systems fast—accurate, consistent, and field-ready
Looking for a quick, reliable way to size sprinkler pipelines and pick the right pump? The Pumps Africa Sprinkler Pipeline & Pump Duty Calculator helps contractors, farmers, and landscape designers produce dependable irrigation designs in minutes. Enter sprinkler flow (L/h), operating pressure (m), and spacing; the tool computes total flow (m³/h), pump head (m), and recommends a pipeline size that keeps pressure loss ≤ 10% from the first to the last sprinkler.
Why this calculator?
Built for real jobs: Optimised for South African irrigation standards and common HDPE/LDPE ranges.
Editable inputs: No fixed dropdowns—human-friendly fields reflect actual site conditions.
Clear guidance: Blue, readable sections with instant results for pump duty point, friction loss, and pipe class.
How it works
Using the proven Hazen–Williams method (C≈150 for HDPE/LDPE), the calculator evaluates segment-by-segment head loss, then selects the smallest pipe diameter that still meets performance. You’ll see cumulative head loss (m), percentage drop, recommended pressure class (Class 3, Class 6, PN10, PN12.5, PN16), and an estimated motor kW for budgeting and energy planning.
Ideal applications
Farm blocks & orchards: Micro-sprinklers, drip laterals, mainlines.
Turf & landscaping: Lawns, sports fields, estates.
Upgrades & troubleshooting: Verify pump duty, diagnose uneven precipitation, and reduce callbacks.
Benefits you’ll notice
Time savings: From rough layout to duty point in a few clicks.
Cost control: Avoid oversizing—balance pipe diameter, flow velocity, and energy costs.
Confidence: Results you can explain to clients and installers.
Key SEO terms (naturally integrated)
Sprinkler line sizing, pump duty calculator, irrigation design tool, friction loss calculator, Hazen–Williams C150, HDPE pipe, LDPE pipe, pressure loss 10 percent, pump head in meters, flow rate m3/h, South Africa irrigation, farm irrigation calculator, landscaping sprinkler design, pipeline selection.
Get started
Try the Pumps Africa Sprinkler Pipeline & Pump Duty Calculator today—design smarter, reduce water waste, and deliver consistent coverage where it matters.