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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.
Water flow from sprinklers, needed to control the fire, is delayed until the air is vented from the sprinklers. In regions using NFPA 13 regulations, the time it takes water to reach the hydraulically remote sprinkler from the time that sprinkler is activated is limited to a maximum of 60 seconds.
An irrigation controller is a device to operate automatic irrigation systems such as lawn sprinklers and drip irrigation systems. Most controllers have a means of setting the frequency of irrigation, the start time, and the duration of watering.
Most automatic systems employ electric solenoid valves. Each zone has one or more of these valves that are wired to the controller. When the controller sends power to the valve, the valve opens, allowing water to flow to the sprinklers in that zone. There are two main types of sprinklers used in lawn irrigation, pop-up spray heads and rotors.
The fire's spread only stopped when it reached the 30th floor, which was the first fire-affected floor to have automatic sprinklers. Ten sprinklers extinguished the fire on the 30th floor and prevented continued spread. Contained by the sprinklers and running out of fuel, the fire was declared under control at 3:01 p.m..
The majority of automatic fire sprinklers operate individually in a fire. Contrary to motion picture representation, the entire sprinkler system does not activate at the same time, unless the system is a special deluge type. [19] [20] Open orifice sprinklers are only used in water spray systems or deluge sprinklers systems.
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