How To Sprinklers Work In Fire Emergency

Fire Sprinkler Working Condition

A fire Sprinkler system is a network of fixed water pipes supplied by two water sources with sprinkler heads mounted at the recommended distance. Water can be distributed from a tank through pumps or through down mains.

The nozzles that direct a jet of water on to a deflector plate which defuses over a large area. The water is held back by a glass bulb or soldered strut which holds a plug in place. When heat is applied from a fire below, the glass bulb will burst, due to expansion of the liquid in the bulb, or the solder will melt, which then releases the plug and water flows through the sprinkler head.

Fire Sprinklers -Commercial & Residential Fire Sprinkler Products |Victaulic

The hot gases from the fire will raise the temperature at the ceiling level and when the area adjacent to the head reaches a certain temperature, the fire sprinkler head will activate and spray water on the fire. Only the sprinkler on top of the fire will open and the others will be closed. This controls damage to non-fire areas and reduces the amount of water needed.

The different types of fire sprinkler system

  • Wet pipe fire sprinkler systems
  • Dry pipe fire sprinkler systems
  • Deluge systems fire sprinkler
  • Pre-action systems
  • Foam water fire sprinkler systems
  • Water spray fire sprinkler systems
  • Water mist fire sprinkler systems

Wet pipe fire sprinkler systems

Wet pipe sprinkler systems—or traditional fire sprinklers—are the most common across residential and commercial buildings. When a fire begins, the heat activates the nearest sprinkler head, releasing pressurized water stored in the pipes. Each sprinkler head is activated independently, reducing water damages in the event of a false alarm. Wet pipe systems are an inexpensive, low-maintenance option appropriate for offices, schools, and commercial properties.

Fire Fighting Safety Equipment - Butterfly Valve

Dry pipe fire sprinkler systems

As opposed to wet pipe fire sprinkler systems, dry pipe systems do not store water in their pipes. Instead, they are filled with pressurised air or nitrogen, which is released if a fire activates the valves in the fire sprinkler head. The pipes then fill with water and discharge it over the smoke or flames. While this system is more complex and costly than a wet pipe system, it is the most appropriate for cold climates where there is a high risk of frozen pipes halting an emergency fire response.

How to Action of Fire Sprinklers in Fire indicates.

Fire water sprinkler system is an automatic device that not only indicates the incipient fire, but as an active fire protection means, it extinguishes fire in its early stage without the intervention of human factor, respectively it keeps fire under control until the fire brigade arrives. It consists of distribution piping system that is permanently attached to building structures, valve station and sprinkler heads that are firmly attached to the distribution pipes in the protected area. Pipeline network together with Fire sprinkler heads are connected to a water source. In the case of fire, water flows out from the sprinkler heads and sprays the area where fire is present. Water extinguishes the given area during fire, cools building structures and the surrounding area and at higher temperatures it evaporates quickly, displacing oxygen and thus creates an inert atmosphere, which prevents the access of oxidant, i.e. the atmospheric oxygen that is needed for combustion.

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Fire Sprinklers -Commercial & Residential Fire Sprinkler Products |Victaulic

Sprinklers are designed in such a way that it can extinguish particular fire in certain minutes. There are different types of sprinklers for different hazard fires. Actually a fire protection system like sprinkler system is designed in such a way that fire pump can carter water for sprinklers+ adjacent hydrant points simultaneously. But the fact is each fire is different from rest. So we can’t give 100% guarantee that sprinkler will be able to protect completely.

REASONS FOR INSTALLING FIRE SPRINKLERS:

Having a fire sprinkler system installed has a number of value and fire protection benefits. Sprinkler Systems are usually most effective when they are automatic suppression based. Benefits of installing fire sprinklers is that they can help protect and save all the occupants of the property. It’s essential to protect your property in any way you can.

By having a fire sprinkler system installed along with traditional methods such as smoke alarms you’ll help to protect both your property and the people in it. Properties that use both fire alarms and suppression systems reduce the risk of fire related death by 82%.

Compared to the damage fires can cause, free sprinklers are a cost effective way to protect both your physical property and the people living or working there. Most fire sprinkler systems cost a couple of percent of the overall property value. If you can afford a new kitchen, then you can afford to have a fire protection system fitted too.

Active fire sprinklers eliminate the possibly or people becoming trapped in a property, when a fire breaks out. Even without a clear fire exit, sprinklers can help to create a path, so people can escape safely. Using a combination of alarms, sprinklers and extinguishers is the best way to keep your building and the people in it safe in the event of a fire.

When the fire brigade sprays water into your property, it can cause extensive amounts of damage to both the visual appearance and to the structure of the property. Sprinklers installed in properties only use a minimum amount of water, meaning less damage will be caused when they go off compared to a fire engines hose.

Most types of fire sprinklers require very little maintenance and they typically continue running smoothly with only their annual maintenance check. Most installers also offer maintenance checks once or twice a year where they will test the value so see how the system is operating.

Reduces the Insurance Cost : Whether you’re a home or business owner, it’s likely you’ll be paying some type of insurance to protect your property in the event of damage. Claiming on these policies can be costly in the long run especially once you’ve claimed on them. Insurance premiums can be reduced by up to 15% when you have sprinklers installed in your property. That must be a benefit of installing fire sprinklers

Whilst there may be an upfront cost to pay out when you first have the system installed, it could be worth it when if you every sell your property. Properties using fire sprinklers are a much more attractive purchase for any type of buyer.

VARIETIES OF FIRE SPRINKLERS:

Fire Sprinkler System are both fire detection and control systems rolled into one, and thereby the most effective fire suppression system available. A Fire Sprinkler System provides an excellent  fire safety solution  by offering protection, as it suppresses fires with water. It works with a control that constantly monitors temperature and when there is an increase in temperature, the sprinklers are activated, releasing water that drowns out surrounding fires.

The design of a fire sprinklers system is simple  the water attachment is attached to a piping system and water pump. The sprinkler is installed into the ceiling with the water –spitting fixture on the inside of the room and the piping system between the ceiling and the roof. There are currently four types of fire sprinkler systems available. These are as follows:

Pre-action  Sprinkler Systems:

Pre-action fire sprinkler systems are filled with air and water is allowed to pass through when the smoke alarm or detector goes off. This type of system requires two triggers to starts water  flow. It helps greatly that the pre action fire sprinkler can be set to prevent water from spouting in case of a false alarm or a mechanical failure. The pre-action system is good for  use in places where the sprinklers are only necessary when there is an actual fire, so other items in the building do not get water damage from an accidental sprinkling. Such buildings include museums, galleries, libraries and data centres. These places contain items of high value like electronics and goods damageable by water such as books.

Pre action fire sprinklers system are filled with air and water is allowed to pass through when the smoke alarm

DRY PIPE SPRINKLER SYSTEMS

Dry pipe sprinkler are similar to pre action systems as they use pressurised air in the pipe which exits before water escapes. This causes a minute delay in water discharge, but is ideal for buildings with low temperatures, so the pipes do not freeze. These  fire sprinkler system have a fast opening tool to get rid of the air and speed up the flow of water. This system is only suitable in cold climates. A good example would be a parking garage with very low over night temperatures, no heating facilities.

WET PIPE SPRINKLER  SYSTEM:

Wet pipe fire sprinkler systems constantly have water in them. This allows for a quick reaction to a fire and is the most common type of sprinkler installed in buildings. Commonly found in high rise or office building with a few floors. This system is efficient and low maintenance.

DELUGE FIRE SPRINKLER SYSTEMS:

These systems also need a smoke or heat detector, like the pre- action system. A deluge system has open nozzles that can be used when a hazard is present. When flammable liquids are spread across a floor, deluge fire sprinklers are good to have. In that case, buildings such as industrial parks and buildings with many tanks have deluge fire sprinkler systems installed.