Rain Bird U-15F dual-orifice spray nozzle - 360° full-circle - 3.4 to 4.6 m radius

Rain Bird U-15F dual-orifice nozzle for larger lawns

The Rain Bird U-15F is a high-efficiency dual-orifice spray nozzle with a fixed 360° full-circle spray pattern and a radius of 3.4 to 4.6 m. It is particularly suitable for automatic irrigation of larger, continuous lawn areas. When installed on a sprinkler positioned within a lawn, the U-15F distributes water in every direction, covering a complete circle around the sprinkler head.

As part of the Rain Bird U-Series, the U-15F features two separate spray openings. The main opening distributes water toward the outer edge of the watering area, while the additional opening delivers water close to the sprinkler head. This design supports more uniform irrigation throughout the entire circular spray pattern.

360° full-circle coverage with up to 4.6 m radius

The fixed 360° spray pattern makes the Rain Bird U-15F especially suitable for sprinklers installed within larger lawn areas. Unlike quarter-circle and half-circle nozzles, it distributes water in every direction. This makes it a practical choice for central sprinkler positions where full circular coverage is required.

The spray radius ranges from 3.4 to 4.6 m depending on operating pressure. At the optimum pressure of 2.1 bar, the nozzle achieves approximately 4.6 m. Its 23° spray trajectory supports water distribution over the longer distance. An integrated stainless steel adjustment screw allows the radius to be reduced when necessary.

Dual-orifice technology for improved close-in coverage

The distinguishing feature of the Rain Bird U-15F is its additional spray opening for close-in watering. Conventional spray nozzles may deliver less water immediately around the sprinkler head. The secondary opening directs water into this area, helping reduce dry patches near the spray body.

Improved water distribution supports efficient lawn irrigation. According to Rain Bird, U-Series nozzles can reduce water consumption by up to 30% compared with conventional spray nozzles under suitable installation conditions. Actual savings depend on sprinkler spacing, operating pressure and watering schedules.

Installation and combination with other U15 nozzles

The Rain Bird U-15F is compatible with Rain Bird spray bodies and suitable shrub adapters, including models from the Rain Bird 1800 Series. A fine mesh filter screen helps protect the lower spray opening from debris. For installations with higher water pressure, pressure-regulated spray bodies help maintain consistent nozzle performance.

When planning your irrigation system, the U-15F can be combined with suitable U-15Q quarter-circle and U-15H half-circle nozzles. Consider their different flow rates and ensure adequate overlap between adjacent spray patterns. At 2.1 bar, the full-circle nozzle requires approximately 840 litres of water per hour, so the available water supply must be sufficient for the entire irrigation zone.

Technical specifications and dimensions

• Manufacturer: Rain Bird
• Model: U-15F / U15F
• Manufacturer SKU listed in the US store: U10020
• Series: Rain Bird U-Series
• Product type: High-efficiency dual-orifice spray nozzle
• Spray pattern: Fixed 360° full-circle
• Spray radius: 3.4 to 4.6 m
• Operating pressure range in performance chart: 1.0 to 2.1 bar
• Optimum operating pressure: 2.1 bar
• Flow rate: 9.8 to 14.0 l/min
• Hourly water consumption: Approx. 588 to 840 l/h
• Spray trajectory: 23°
• Spray openings: 2, for close-in and outer coverage
• Radius adjustment: Stainless steel adjustment screw
• Spray angle: Fixed, not adjustable
• Filter screen: Fine mesh
• Compatibility: Rain Bird spray bodies and suitable shrub adapters
• Recommended spray bodies: Rain Bird 1800 Series, pressure-regulated PRS models for higher supply pressure
• Applications: Larger lawn areas and central sprinkler positions

Frequently asked questions about the Rain Bird U-15F

What is the spray radius of the Rain Bird U-15F?

The spray radius ranges from 3.4 to 4.6 m depending on operating pressure. At the optimum pressure of 2.1 bar, the nozzle reaches approximately 4.6 m.

Can the 360° spray angle be adjusted?

No. The U-15F has a fixed full-circle spray pattern. However, the radius can be reduced using the integrated stainless steel adjustment screw.

How much water does the U-15F use?

The flow rate ranges from 9.8 to 14.0 l/min, equivalent to approximately 588 to 840 litres per hour, depending on operating pressure.

Why does the nozzle have two spray openings?

The additional opening delivers water close to the sprinkler head, helping improve watering uniformity and reduce dry patches around the spray body.

Which sprinkler bodies are compatible?

The Rain Bird U-15F is compatible with Rain Bird spray bodies and suitable shrub adapters, including models from the Rain Bird 1800 Series.

Can the U-15F be combined with other U15 nozzles?

Yes. The U-15F can be combined with suitable U-15Q quarter-circle and U-15H half-circle nozzles. Their different flow rates must be considered when designing the irrigation zone.