T E C H L I N E A S ™ D E S I G N G U I D E
NETAFIM @BCL@C40BDC65.doc 21/12/2009 30
FORMULA 1.4 FLOW PER ZONE
Number of Drippers x Dripper Flow Rate (L/H) = Total Flow (L/H)
In which:
Flow per Zone = Total Litres per Hour
Number of Drippers = Total Number of Drippers
Dripper Flow Rate = Litres per Hour of one Dripper
L/H = Litres per Hour of Flow of One Dripper
Example: 1,000 Drippers in a zone with a discharge rate of 1.6L/H
1,000 Drippers x 1.6L/H = 1,600L/H
1,600L/H ÷ 60 (convert to L/M) = 26.7L/M
Total Flow for this zone is 26.L/M.
FORMULA 1.5 ESTIMATED TOTAL ZONE FLOW
Application Rate of System (mm/Hr) x Irrigated Area (m
2
) = Total Zone Flow (L/H)
In which:
Application Rate = mm per Hour of Water Being Applied
Irrigated Area = Total Area in Square Metres
Total Zone Flow = Total Litres per Hour in the Irrigated Zone
Example: Application Rate of 8.0mm/Hr in an irrigated area of 200m
2
8.0mm/Hr x 200m
2
= 1,600L/H (÷ 60 to convert to L/M) = 26.7L/M
Total Zone Flow for this area is 26.7L/M.
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