Robin Rotary Sprinkler – 4.5 mm Gray Nozzle #11 (11/64") – Full Circle

RK-ROBIN-4.5MM – Robin Rotary Sprinkler with 4.5 mm Gray Nozzle

The Robin sprinkler is a high-volume, low-pressure rotary sprinkler that uses a unique cam rotor to deliver eccentric (off-center) rotation. With the 4.5 mm gray nozzle, it covers a wetted diameter of 44.3–54.1 feet at pressures as low as 10 PSI, delivering 2.9–5.0 GPM. This model features a 3/4" MNPT connection to accommodate the higher flow rates.

Key Features & Benefits

• Eccentric cam-driven rotation — off-center rotation provides an extremely uniform and instantaneous application pattern over a large area, eliminating dry patches
• Extended wetted diameter (44.3–54.1 ft.) — covers far more area per head than standard sprinklers, reducing hardware costs and installation labor
• 3/4" MNPT connection — larger inlet supports the higher flow rates (2.9–5.0 GPM) without restriction
• Very low pressure operation (10–28 PSI) — operates at pressures where many sprinklers cannot, significantly reducing pumping energy costs
• Low evaporative loss — fine water droplets delivered close to the canopy minimize wind drift and evaporation
• Self-cleaning mechanism — internal design helps flush sand and dirt particles to prevent clogging
• Bridgeless design — eliminates dry patches caused by structural bridges in conventional heads

Ideal Applications

Overhead and under-tree irrigation for orchards, vineyards, nurseries, field crops, and horticultural operations. The higher flow rate and 3/4" connection make this nozzle well-suited for larger trees, wider spacing, or soils with higher infiltration rates.