Automatic Sprinkler 5
Automatic Sprinkler 5 : System of pipes serving fire sprinklers, for automatically directing water to a fire when the sprinkler is heated to its actuation tempereature (usually 155 deg F). The piping may be normally pressurized with water ("wet") or with air ("dry"), depending upon the application. When a sprinkler-head (or heat sensor) detects heat from a fire, the sprinkler opens, automatically spraying water onto the fire area
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