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Dry pipe systems have a slower reaction time (up to a minute delay). Once all of the air is released, the pressure in the pipe changes, allowing water to fill the system. When the sprinkler head is activated, a valve releases the compressed air through the sprinkler head. Since the pipes are always filled with water, they're not recommended for locations where the pipes might freeze or in residential environments where accidental leaks could be detrimental.Īs you might have guessed, in a dry pipe system, the pipes are not filled with water - they're actually filled with compressed air.
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However, wet pipe systems are not always the best choice. The wet pipe system is also the simplest and most reliable, boasting cost savings for easy installation and low maintenance. We'll learn more about the different types of fire sprinkler systems on the next few pages. The amount of time this process requires depends on the type of fire sprinkler system. This carefully designed spray of water extinguishes the fire below and prevents it from spreading.įire sprinkler systems have revolutionized fire safety by automatically putting out fires in the room of origin and preventing fires from spreading or re-igniting. The water is quickly pushed out of the pipes through the sprinkler head, spraying water downward and out to the sides. When the sprinkler head is triggered, a valve to the pipe system is opened, releasing the water that is kept under pressure from the pipes. These pipes wind through the building and outside to connect with a reliable water source. The sprinkler head is attached to a system of pipes that are hidden behind the walls or ceiling. Most sprinkler heads are equipped with a glass trigger filled with a glycerin-based liquid that expands at the appropriate temperature, breaking the glass and activating the sprinkler head. The sprinkler heads must detect a high enough temperature - usually between 135 and 165 degrees Fahrenheit (57 to 74 Celsius). Not just any heat source will trigger a sprinkler system to activate. As this hot air reaches a sprinkler head, that sprinkler head is activated. This air rises and is pushed out to either side when it hits the ceiling. When a fire starts, it quickly heats the air directly above it. Alerting residents to the presence of fire is important. This process can be quite slow depending on where the smoke detector is located. When a fire starts, the resulting smoke will eventually set off a smoke detector alerting residents to danger. They work together to save life and property from fire. The presence of one does not cancel out the need for the other. They're an important part of a fire prevention system, as are fire sprinklers. Smoke detectors are designed to alert us to a potential fire, and in cases where they're hooked up to an alarm system, alert the fire department. Some even believe that smoke detectors can put out fires. Have you also heard that a smoke detector is all you need for fire protection? If so, you've heard another one of the most common myths regarding fire sprinkler systems: We don't need them if we have a smoke detector. You've probably also heard the annoying beeping noise it makes when it needs some attention. You've heard about the importance of a properly maintained smoke detector. Fortunately, the clever engineers who developed these systems designed them to reduce the damage to your property from water, smoke and fire. After all, if you burned a piece of toast, every sprinkler would go off, soaking all of your belongings, even though there never was any real danger of fire. If that were the case, sprinkler systems could potentially cause more harm than good. This belief is a spinoff from the myths we just mentioned - that sprinklers are activated by smoke and every sprinkler head goes off at the same time. You might think installing a fire sprinkler system is like choosing water damage over fire damage. In this article, we'll dispel other myths and learn the ins and outs of this important safety technology. These are just two of the many misconceptions about fire sprinkler systems. But did you know that sprinklers aren't even triggered by smoke, and they don't all go off at once? Fire sprinkler systems are actually heat activated, one sprinkler head at a time, and most fires usually require only one or two sprinklers to be extinguished. You've probably seen a number of movies where a small amount of smoke triggers all of the sprinklers in a building, soaking everyone and everything inside.