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(4740) Sprinkler (rotating)
An apparatus for applying irrigation water, in which a jet rotates around a vertical axis. The rotation may be caused by gears driven by a turbine actuated by the discharge of the sprinkler or by an oscillating arm that is driven outside its equilibrium position when the jet coming out of the nozzle hits a slanting part (paddle) and that is brought back to its position of equilibrium under the effect of a torsional spring. Each impact of the arm rotates the sprinkler through a small fraction of a circle. Sprinkler may be designed for full circle (360 degree), or part-circle coverage, by provision of a reversing mechanism. A sprinkler may be provided with one or more nozzles. In the case of a double nozzle, the bigger one, called range nozzle, throws the water farthest from the sprinkler head. The smaller one applies water nearest to the sprinkler head.
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Dictionary - Sprinklers Terms
- Sprinkler irrigation
- Antifrost sprinkler method or Frost control
- Sprinkler intensity, Rain intensity, or Application rate
- Overtree sprinkler method
- Undertree sprinkler method
- Perforated pipe sprinkler irrigation
- Raingun Big gun, Giant sprinkler or Gun sprinkler
- Roll-move sprinkler lateral system or Side-roll sprinkler lateral system
- Two-line sprinkler method, or Tow-a-line method
- Irrigation sprinkler machine
- Travelling gun sprinkler
- Lateral-move irrigation machine sprinkler method
- Angle of departure of a rotating sprinkler
- Sprinkler (rotating)
- Distribution pattern (of a sprinkler diffuser)
- Range (of a sprinkler or diffuser)
- Minimum operating pressure (of a sprinkler or diffuser)
- Retractable sprinkler
- Test pressure (of a sprinkler or diffuser)
- Peak of travel path (of a sprinkler)
- Assumed sprinkler intensity
- Centre pivot sprinkler
