Pump specifications; flow rate, pressure and power required.
Remember to include the safety factors as per South African Irrigation Institute norms: flow rate + 5% and pressure + 10%.
The pump’s required pressure is the sum of all the component pressures, including the safety factor.
For Example:
The pump’s required flow rate is the number of sprinklers per shift multiplied by the flow rate per sprinkler, including the safety factor.
For Example:
The power required by the pump using the data from the examples shown above.
® As a rule of thumb: take 0.777m3 per sprinkler.
Formula:
® As a rule of thumb: 1kW will deliver between 4 and 5m3 of water per hour at about 5 Bar or 500kPa.
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