Matched Precipitation Rate (MPR)

Category: infrastructure

An irrigation configuration ensuring all sprinkler heads within a single zone deliver water at the exact same depth rate.

If a zone combines a 360-degree full-circle rotor head with a 90-degree quarter-circle head using identical nozzles, the quarter-circle area will receive four times more water depth. MPR nozzles adjust the physical flow rate relative to the arc angle, guaranteeing even soaking.

Common Examples

• We swapped the old nozzles out for matched precipitation rate tips to eliminate the uneven mud zones across the park turf.
• Mixing high-volume spray tips with low-flow rotary heads on a single zone loop violates basic matched precipitation rate design rules.