Hunter MP Rotator sprinklers

Posted on 14th March 2016 at 9:23am

Hunter MP rotator sprinkler operating

Hunter MP rotator sprinklers provide flexible watering for small lawns. One of the problems with rotor sprinklers is that if the arc is halved, the precipitation rate is effectively doubled. This leads to very uneven watering. In contrast the MP (matched precipitation) nozzles ensure that if the arc is reduced, so is the flow of water.

With complex lawn shapes the ability to mix different arcs on the same zone and not have to worry about differences in precipitation is a game changer for the industry.

Hunter MP Rotator Sprinklers

With the MP Rotator range there are a number of different sprinkler heads. Three main ranges are the MP1000, MP2000 and MP3000. The MP1000 range has 4 different arc combinations, the smallest covering 45-105 degrees and the largest a 360 degree full circle. The MP1000 sprinkler covers 2.6m -3.5m radius. The MP2000 range covers 4.9m - 6.4m and the MP3000 range covers 7.6m - 9.1m. 

Hunter Industries have recently launched a new short radius nozzle and also a longer range nozzle which will cover up to 10.7m radius. The short radius 800 series are designed for lawn coverage of between 2.6m and 3.0m, making them ideal of UK sized domestic gardens. There are two nozzles in the MP800 range, the Orange/Grey nozzle will cover arcs from 90 degrees to 210 degrees, and the Lime Green will cover a full circle. Both nozzles will operate at pressures between 1.7 bar and 3.8 bar.

At the top end of the range the MP3500 sprinkler will cover a radius between 9.4m and 10.7m. At present only one colour is available, the Light Brown option which will cover an arc between 90 degrees and 270 degrees. With an output of 900 l/h a very good mains pressure and flow are needed, or the sprinkler needs to operate from a pump and storage tank.

Hunter MP Rotator Sprinkler bodies

Two MP rotator sprinkler body types are offered. The unregulated body allows the pressure to be varied. With the MP rotator system, when the pressure changes the radius of the sprinkler also varies. Hunter are also offering a new 'Pro' body. This features a heavier duty spring and a 5 year warranty. It also features a check valve, which is ideal for sites with changes in elevation. With the Pro body, the sprinkler output is regulated to 2.8 bar.

Operating Hunter MP Rotators in Domestic Gardens

Hunter MP rotator sprinklers are generally operated at 2.8 bar pressure, which is high for a private domestic garden. To ensure an adequate pressure and flow is provided, a pump and tank unit is recommended. The pump and tank also provides compliance with UK Water Regulations for domestic gardens.

A 500 litre tank with submersible pump can be delivered on a pallet for easy installation and will provide enough flow to water a typical irrigation system in a domestic garden.

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