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A fire sprinkler system is an active fire protection method, consisting of a water supply system providing adequate pressure and flowrate to a water distribution piping system, to which fire sprinklers are connected. Although initially used only in factories and large commercial buildings, systems for homes and small buildings are now available ...
An oscillating sprinkler is commonly used to water residential lawns, and is moved as needed. Home lawn sprinklers vary widely in their size, cost, and complexity. They include impact sprinklers, oscillating sprinklers, drip sprinklers, underground sprinkler systems, and portable sprinklers. Permanently installed systems may often operate on ...
A fire sprinkler mounted on a ceiling. A fire sprinkler or sprinkler head is the component of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a predetermined temperature has been exceeded. Fire sprinklers are extensively used worldwide, with over 40 million sprinkler heads fitted each year.
Grinnell improved Parmalee's first practical automatic sprinkler and patented his own Grinnell sprinkler in 1882. [5] Continual improvements resulted in the glass disc sprinkler in 1890. With slight modifications, this sprinkler head is still used in modern fire sprinkler systems ; sprinklers are even called le Grinnells in France. [ 6 ]
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The outgoing head of Ohio's troubled teachers retirement system said that she is leaving the fund in strong fiscal condition, despite the turmoil at the top that her successor will inherit. In a ...
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