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In 2008, the installed costs of sprinkler systems ranged from US$0.31 – $3.66 per square foot, depending on type and location. Residential systems, installed at the time of initial home construction and utilizing municipal water supplies, average about US$0.35/square foot. [22] Systems can be installed during initial construction, or retrofitted.
Sprinkler fitting is a skilled trade that consists of assembling, installing, testing, repairing, inspecting, and certifying automatic fire suppression systems and their associated piping in commercial, industrial and residential buildings.
A typical automatic sprinkler system operates when heat at the site of a fire causes a fusible link or glass component in the sprinkler head to fail, thereby releasing the water from the sprinkler head. [5] This means that only the sprinkler heads at the fire location actuate – not all the sprinklers on a floor or in a building.
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.
A type of valve used for underground piping, having a lockable actuator atop a post with a window indicating "open" or "shut" status of the valve. It can be used to control a sprinkler system, hydrant or other device, or may be used as a divisional valve.
If the pressure in the "upstream side" is reduced to atmospheric pressure or below, the poppet valve drops and allows air to enter the system, breaking the siphon. [1] One-Inch Brass Atmospheric Vacuum Breaker mounted on PVC Pipe. These devices, since they work on atmospheric principles, cannot be installed in an enclosure containing air ...
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