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  2. Irrigation controller - Wikipedia

    en.wikipedia.org/wiki/Irrigation_controller

    Most automatic irrigation valves are diaphragm valves in which the water above the diaphragm must be discharged for the valve to open. In a hydraulic system, the controller and valves are connected via small plastic tubes approximately 4 mm (¼ in) in diameter. The controller opens the tube connected to the valve, allowing that valve to open ...

  3. Irrigation sprinkler - Wikipedia

    en.wikipedia.org/wiki/Irrigation_sprinkler

    An impact sprinkler head in action Sprinklers spraying water to irrigate vine plants in a vineyard. An irrigation sprinkler (also known as a water sprinkler or simply a sprinkler) is a device used to irrigate (water) agricultural crops, lawns, landscapes, golf courses, and other areas. They are also used for cooling and for the control of ...

  4. Orbit Irrigation Products - Wikipedia

    en.wikipedia.org/wiki/Orbit_Irrigation_Products

    Orbit Irrigation Products, Inc, located in Salt Lake City, UT, United States, is a manufacturer and supplier of irrigation products for residential and commercial markets and has been in business since 1986. It distributes over 2,000 products to 40 countries on five continents.

  5. Automation - Wikipedia

    en.wikipedia.org/wiki/Automation

    Sequential control may be either to a fixed sequence or to a logical one that will perform different actions depending on various system states. An example of an adjustable but otherwise fixed sequence is a timer on a lawn sprinkler. States refer to the various conditions that can occur in a use or sequence scenario of the system.

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  7. Bang–bang control - Wikipedia

    en.wikipedia.org/wiki/Bang–bang_control

    Symbol for a bang–bang control. In control theory, a bang–bang controller (hysteresis, 2 step or on–off controller), is a feedback controller that switches abruptly between two states. These controllers may be realized in terms of any element that provides hysteresis. They are often used to control a plant that accepts a binary input, for ...

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