Rain Bird MPR-12Q spray nozzle - 90° quarter-circle - 2.7 to 3.7 m radius

Rain Bird MPR-12Q spray nozzle for larger lawn corners

The Rain Bird MPR-12Q is a fixed-pattern spray nozzle with a 90° quarter-circle spray pattern and a radius of 2.7 to 3.7 m. It is particularly suitable for automatic irrigation of lawn corners where a longer spray radius is required. Whether installed at the corner of a patio, next to garden paths or where two property boundaries meet, the nozzle directs water into a defined quarter-circle area.

The MPR-12Q belongs to the Rain Bird MPR Series, which features matched precipitation rates for coordinated water distribution. It is a practical choice when the MPR-10Q does not provide enough coverage and you need a fixed 90° spray pattern. The nozzle is suitable for both new irrigation systems and replacement of existing spray nozzles.

90° quarter-circle coverage with up to 3.7 m radius

The fixed 90° spray angle makes the Rain Bird MPR-12Q particularly suitable for sprinklers installed in lawn corners. Water is distributed over a quarter-circle area, helping keep irrigation focused on the intended grass. This spray pattern can reduce unnecessary watering of adjacent paths, patios and flower beds.

The spray radius ranges from 2.7 to 3.7 m depending on operating pressure. At the optimum pressure of 2.1 bar, the nozzle reaches approximately 3.7 m. Its 30° spray trajectory is noticeably higher than that of the MPR-10 Series. The integrated stainless steel adjustment screw allows the radius to be reduced when required.

Matched precipitation rates for balanced irrigation

MPR stands for Matched Precipitation Rate. Rain Bird MPR nozzles are designed with coordinated precipitation rates across different spray patterns. This makes it easier to combine suitable quarter-circle, half-circle and full-circle nozzles in a properly designed irrigation system while maintaining balanced water application.

The Rain Bird MPR-12Q has a flow rate of approximately 1.7 to 2.5 l/min depending on operating pressure. At 2.1 bar, this corresponds to around 150 litres per hour according to the metric manufacturer performance chart. Correct sprinkler spacing, adequate overlap and suitable operating pressure are important for achieving consistent irrigation across the lawn.

Easy installation on Rain Bird spray bodies

The Rain Bird MPR-12Q fits compatible Rain Bird spray bodies and suitable shrub adapters, including models from the Rain Bird 1800 Series. A white fine-mesh filter screen is supplied to help prevent debris from entering the nozzle. The stainless steel adjustment screw allows convenient radius adjustment during installation.

For automatic lawn irrigation, the MPR-12Q can be combined with suitable MPR-12H half-circle and MPR-12F full-circle nozzles. These models have comparable spray radii at the same operating pressure but different spray patterns and flow rates. Pressure-regulated spray bodies can help maintain suitable nozzle pressure when the supply pressure is higher than required.

Technical specifications and dimensions

• Manufacturer: Rain Bird
• Model: 12Q / MPR-12Q
• Series: Rain Bird MPR, 12 Series
• Product type: Fixed-pattern spray nozzle
• Spray pattern: Fixed 90° quarter-circle
• Spray radius: 2.7 to 3.7 m
• Operating pressure range in performance chart: 1.0 to 2.1 bar
• Optimum operating pressure: 2.1 bar
• Flow rate: 1.7 to 2.5 l/min
• Water consumption at 2.1 bar: Approx. 150 l/h according to the metric performance chart
• Spray trajectory: 30°
• Radius adjustment: Stainless steel adjustment screw
• Spray angle: Fixed, not adjustable
• Filter screen: White fine-mesh filter
• 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: Lawn corners, larger lawn areas and garden areas next to paths or patios

Frequently asked questions about the Rain Bird MPR-12Q

What is the spray radius of the Rain Bird MPR-12Q?

The spray radius ranges from 2.7 to 3.7 m depending on operating pressure. At 2.1 bar, the nozzle reaches approximately 3.7 m.

Can the 90° spray angle be adjusted?

No. The MPR-12Q has a fixed quarter-circle spray pattern. However, the radius can be reduced using the integrated stainless steel adjustment screw.

How much water does the MPR-12Q use?

The flow rate ranges from approximately 1.7 to 2.5 l/min. At 2.1 bar, the metric manufacturer performance chart lists a flow of 0.15 m³/h, equivalent to approximately 150 litres per hour.

What does MPR mean?

MPR stands for Matched Precipitation Rate. These nozzles are designed with coordinated precipitation rates to support balanced water distribution across different spray patterns.

Which sprinkler bodies are compatible?

The Rain Bird MPR-12Q fits compatible Rain Bird spray bodies and shrub adapters, including models from the Rain Bird 1800 Series.

Can I combine the MPR-12Q with other MPR nozzles?

Yes. It can be combined with suitable MPR-12H half-circle and MPR-12F full-circle nozzles. Their different flow rates and the required sprinkler spacing should be considered during system design.

What is the difference between the MPR-12Q and MPR-10Q?

The MPR-12Q has a longer spray radius of up to 3.7 m and a 30° spray trajectory. The MPR-10Q reaches up to 3.1 m and has a 15° spray trajectory.