Irrigation sprinkler
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Irrigation Sprinklers are used on farms, golf courses, residential yards, and other places to water crops, lawns, gardens or other plants in the event of drought. They are also used for recreation or as a cooling system.
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[edit] Sprinkler types
Sprinklers that spray in a fixed pattern are generally called sprays or spray heads. Sprays are not usually designed to operate at pressures above 30 lbf/in² (200 kPa), due to misting problems that may develop.
Higher pressure sprinklers that rotate around it self are driven by a ball drive, gear drive, or impact mechanism. These can be designed to rotate in a full or partial circle. Some sprinklers are also known as Floppy Sprinkler, Spray Pop-ups, pulsating sprinklers due to their water stream and Revolutionary new concept having no rotating or moving parts.
Rainguns are similar to impact sprinkler, except that they generally operate at very high pressures of 40 to 130 lbf/in² (275 to 900 kPa) and flows of 50 to 1200 US gal/min (3 to 76 L/s), usually with nozzle diameters in the range of 0.5 to 1.9 inches (10 to 50 mm). In addition to irrigation, guns are used for industrial applications such as dust suppression and logging.
Many irrigation sprinklers are buried in the ground along with their supporting plumbing, but above ground and moving sprinklers are also common. Most irrigation sprinklers are functioned through electric and hydraulic technology and are grouped together in zones that can be collectively turned on and off through actuating a solenoid valve.
[edit] Sprinkler use
Most irrigation sprinklers are used as part of a sprinkler system, consisting of various plumbing parts, piping and control equipment. Piping is connected to the water source via plumbing fittings and the control system opens and close valves to provide water on a schedule. The control provided varies depending on the equipment used; some systems are fully automated and even compensate for rain, runoff and evaporation, while others require much more user attention for the same effectiveness.
