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deluge sprinkler system fire protection tubes

By Becca Jones

Deluge vs. Pre Action Sprinkler Systems

April Showers Bring May Flowers- and also Building Protection

As they say, April showers bring May flowers, we just hope those showers stay on the outside of your building. However, if you happen to need your indoor showers (sprinkler systems and fire suppression systems) it’s best to understand what systems serve your specific building’s needs. Deluge vs. Pre Action Sprinkler Systems—what’s the difference? —–When it comes to fire protection for your building there are many options to consider, and it’s important to understand what these options may entail. 

Deluge Systems 

What is a Deluge system?

Deluge suppression systems are typically used in special hazard installations when water must be applied to an entire area for fire protection. These systems are considered a ‘dry fire protection system’ as the piping for the system is empty and at an atmospheric pressure with the sprinkler heads all open. When heat or fire is detected by the system, the deluge valve releases the water, dry chemicals, inert gases, or foam. 

The type of agent used in the systems is dependent on the hazard type and location of the fire protection system. Once filled, it releases from all sprinkler heads simultaneously, which helps to blanket the entire area, which, in turn, controls the fire. 

These systems are typically used for facilities where an entire area needs to be protected immediately, rather than by a zone or specific location of the source of the heat or fire. Typical facilities that utilize deluge suppression systems are airport hangars, chemical plants, processing plants, and data storage centers. These systems are especially useful when you need to quickly flood an area to prevent a fire from expanding. 

What are the types of deluge systems?

There are a few different types of deluge systems. These systems can be electronically operated, others are pneumatic. The electronically operated systems work when an alarm is set off via a detector, pull station, or another alarm system. Once the alarm is activated, it will energize the solenoid valve, which releases the prime water, or other agents, off the top of the valve, which allows the deluge valve to trip and deliver the agent to the hazard. 

Pre-Action Sprinkler Systems

What is a pre-action sprinkler system?

Pre-action sprinkler systems, on the other hand, are used to protect areas where water damage from damaged sprinklers or piping needs to be avoided. These are a middle ground between dry and wet fire protection systems. 

The major difference between a deluge suppression system and a pre-action system is that pre-action systems are filled with compressed air. The sprinkler heads remain closed until needed, and a pre-action valve holds back the water. It is a hybrid dry/wet system as it is a dry system until it is activated at which point it becomes a wet system. 

Pre-action fire sprinkler systems require two steps to discharge the agent. When the system first detects heat or fire the pre-action valve opens. Next, the pipes are flooded with water, dry chemicals, inert gases, or foam. After it’s filled, the specific sprinkler head must detect heat or fire to open. Then, the system will work to extinguish the fire in the immediate area.

Unlike deluge systems, these systems only cover an area that detects heat or fire. Coverage expands as more sprinkler heads detect heat/fire.

Why would you choose a pre-action sprinkler system?

One of the best reasons to incorporate pre-action sprinkler systems into your building is because sprinkler heads may be falsely triggered. When these sprinkler heads accidentally activate, there may sometimes be costly, irreversible property and water damage to your building. Because pre-action fire sprinkler systems require two-part discharge, they provide an elevated level of protection from accidental discharges. 

Another reason to utilize pre-action fire sprinkler systems is the ability of the pressurized air or nitrogen to detect leaks in the system. This allows you to ensure your system is functioning properly when you need it most. 

What other sprinkler systems should I consider?

There are a few other fire sprinkler systems to consider as you work to ensure your building remains protected. 

Wet Pipe Sprinkler Systems

These systems are the most popular sprinkler systems. They are extremely effective, low-cost, and low-maintenance. This system’s pipes remain filled with water. Once triggered by the heat-source, water flows through the activated sprinkler to the source of the fire. These systems are extremely quick to react to potential fires, however they are at risk of freezing in cold environments. 

Dry Pipe Sprinkler Systems

In freezing climates, dry pipe sprinkler systems are a better choice than wet pipe systems. These systems do not carry water in the piping until they are activated. 

Instead, these pipes are filled with pressurized air and nitrogen. When the system is activated, the dry pipe valve opens and water flows in when the sprinkler head is triggered. 

The disadvantage of these systems is that their response time is delayed. Another potential downfall to these systems is the required maintenance. Sprinkler corrosion is more prevalent in these systems, as the compressed air and oxygen create an enticing environment for corrosion. 

Single Interlock

These systems require a single, preceding fire detection event. This event is typically an activation of heat or smoke detectors. When the event occurs, the pre-action valve allows water to enter the piping system. With these systems, if a sprinkler head activates before this, it will sound a trouble alarm. However, no water will be discharged. 

Double Interlock

Double interlock pre-action systems provide an added layer of protection. These systems require a preceding fire detection to occur in conjunction with an automatic sprinkler activation, prior to water releasing into the pipes. One alarm activation will not be enough to discharge these sprinkler systems. 

At VFS Fire & Security Services we understand that your unique building needs unique fire protection systems. Our team is equipped to ensure you receive the fire protection you need to keep your building and your people safe from harm.

 

Your V-Day Building Fire Protection Checklist

By Jackie Berens

Your V-Day Building Fire Protection Checklist

It May Not Be Romantic, But It Can Be Life-Saving

Valentine’s Day is here and love is in the air. While it’s easy to get swept up in the romance, it’s important to ensure that the air remains clear of smoke. Before lighting the candles and sitting down for dinner, make sure your building is protected. 

The four main goals of fire protection are:

  1. Prevent a Fire From Starting
  2. Prevent Loss of Life When a Fire Does Start
  3. Confine the Fire to Its Origin
  4. Extinguish the Fire

VFS provides systems that can quickly alert everyone that a fire is in the building and to help stop the fire in its tracks. There are many types of fire protection systems in buildings and we can make sure yours are cutting edge. When you need fire protection, you need it to be the best. 

Keep the Flame Alive, Not Ablaze

The first of the four goals of fire protection is to prevent fires from starting in the first place. This is accomplished through cautious actions and awareness of people in the building. Informing building occupants of common fire risks can help them avoid risky mistakes. 

Common Valentine’s Day Firestarters

  • Candles and fireplaces provide light, warmth, and they set the mood for a romantic night — but they can also be a hazard. Many fires begin in the bedroom, usually because candles are too close to bedding, mattresses, or upholstered furniture that easily lights on fire. 
  • Cooking fires are incredibly common and are often the result of an unattended stove. When pouring your heart into a Valentine’s Day dinner for your significant other, make sure to stay in the kitchen and practice caution.
  • Helium balloons are a delightful surprise, but try to keep them inside. If they float away, they may hit a power line on the way. This can cause a small explosion that melts the electric wire and leads it to fall. The fallen electrical wire can spark a fire. 

Posting warnings around flammable objects can bring awareness and help prevent the romantic gesture from blowing up in your face.  

Smoke Alarms May Kill the Mood, But They’re Vital

It’s not romantic music, but a smoke alarm will respond to fire and smoke to alert everyone in the building that it’s time to leave. While preventing fires altogether is preferable, planning for the event of a fire is an essential step to save lives. 

Both automatic and manual smoke alarms play an important role in a timely evacuation. To prevent the loss of life during a fire, having a highly responsive alarm system can make all the difference. If your alarm systems haven’t been updated for a while, they may not work properly. We’ll make sure your fire alarm system is fully functional and ready to alert you. 

What’s Your Sign? Safe Fire Exits

Once the alarm is going, people need to know where to exit. Having properly marked fire exits expedites the escape plan. Even if you go over a fire safety plan together, the plan can fly out the window in the panic of the moment. 

Clearly marking exits and exit routes can guide people to safety, even when it’s hard to process the situation. LED fire exit signs can easily be seen through smoke and show people where to go. Multiple signs leading the way to the fire exit are helpful in larger buildings where the exit sign may not be visible from down a hallway.  

What’s More Romantic Than Showering Together?

Sprinkler systems are a vital part of stopping fires. Automatic fire sprinkler systems reduce fatalities by 87% when compared to properties without any fire sprinklers. Sprinklers help prevent the spread of fire and confine the blaze to its area of origin. 

Fire sprinkler systems are highly effective at controlling fires and keeping them from growing. They’re triggered individually when the heat of a room reaches a certain temperature, activating the sprinkler. Not all sprinklers will be activated at once, so water damage is minimized. 

If your fire sprinkler systems aren’t checked often, they may not work when they’re needed most. VFS can help you ensure your sprinkler system is functioning properly so your building will be protected in the worst-case scenario. Our inspection and maintenance teams are prepared to help keep your building up to NFPA and local codes. Inspection and maintenance is essential to ensuring your sprinkler and fire alarm systems are functioning properly when you need them most. 

Light a Spark in Your Love Life, Not in Your Building

Building fire systems are essential for keeping your romantic night from going up in flames. While they may not be used very often, the importance of protection can’t be overstated. Top-tier fire protection is better to have and not need than need and not have. 

So before the mood heats up this Valentine’s Day, make sure your building won’t. These tips can keep the romance — as well as everyone in the building — alive and well.

deluge sprinkler system fire protection tubes
Deluge vs. Pre Action Sprinkler Systems
Your V-Day Building Fire Protection Checklist
Your V-Day Building Fire Protection Checklist