Rotary Sprinklers – uniform application over entire area – lawns. Micro sprays – Water uniformly over small areas. Drip – Trickle – specific area – shrubs. Spray Heads. Technical Information – operating pressure, flow, radius of throw, and nozzle options Fixed head Rotary Motor-driven
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Technical Information – operating pressure, flow, radius of throw, and nozzle options
Uniform application by overlapping non-uniform wetting paterns
When a sprinkler is tested to determine its Distribution Rate Curve (often abbreviated as DRC)
One measure used to compare DRCs is the scheduling coefficient or SC.
Scheduling Coefficient (SC Rate Curve (often abbreviated as DRC)) is the average depth of water in the catch cans divided by the depth of water in the catch can having the least amount of water. Interpolation
Head-to-head, Rate Curve (often abbreviated as DRC)
S less than or equal to k D = k 2 r Rate Curve (often abbreviated as DRC)
k is a constant depending on spacing and wind speedSpacing
P = q/A
Units MUST be consistent. For:
P = precipitation rate (in/hr)
q =flow onto area (gal/min)
A = area (ft²)
P = 96.3 q/A