]Types of Fire Sprinklers- Knowing the types of sprinkler systems that exist can help you choose the most suitable system for your specific needs.

Here are five types of fire sprinklers that can save lives and protect your property from fire hazards.

Each type has different characteristics and mechanisms of action, so it is important to understand the advantages of each to ensure the selected system can provide optimal protection according to environmental conditions and existing fire risks.

Types of Fire Sprinklers

1. Wet Pipe Sprinkler

A wet pipe sprinkler system is a type of fire sprinkler whose pipes are always filled with water, so that when the sprinkler head is triggered by heat, water immediately comes out to extinguish the fire.

This system is designed to provide a quick response in emergency situations, as no time is wasted filling the pipes with water.

With a simple yet efficient design, wet pipe sprinklers are a commonly used option in many buildings, providing effective protection against fire and helping to prevent the spread of fire before help arrives.

Pros:

Fast Response: Since it is always filled with water, the system can respond very quickly.
Simplicity: The simple design makes it easy to install and maintain.
Cost Effectiveness: Wet pipe sprinklers are often less expensive to install and maintain, making them an economical choice for many buildings.

Cons:

Risk of Freezing: In areas with cold temperatures, the water in the pipes can freeze, disrupting the functioning of the system. This requires additional protection, such as heating or insulation.

2. Dry Pipe Fire Sprinkler

Unlike the wet pipe, the dry pipe sprinkler system contains pressurized air or nitrogen, not water.

When the sprinkler system is triggered, the air in the pipes is released, which then opens a valve to let water flow into the pipes and out through the sprinkler head.

These systems are specifically designed for use in areas with a risk of freezing, as the water does not stay in the pipes until it is needed.

Pros:

Safe for Cold Environments: This system is perfect for areas with low temperatures, as there is no water in the pipes that can freeze.

Cons:

Slower Response: The process of releasing air and opening the valve before the water flows makes the response of this system slower compared to the wet pipe.
More Complex Maintenance: Requires more frequent maintenance and testing to ensure the valve is functioning properly.

Also Read: “How to Choose the Components of Fire Alarm System: A Guide“

3. Pre-action Sprinkler

You must be wondering, what is a pre-action fire sprinkler? It is a combination of wet pipe and dry pipe sprinkler, where water only flows into the pipes after two conditions are met: heat detection by sensors and manual or automatic activation of the alarm system.

The system is designed to provide maximum protection by minimizing the risk of false activation.

When the detector detects heat, the valve will open and fill the pipe with water, but water will only come out of the sprinkler head if the head is triggered by sufficient heat.

Pros:

Rapid Response: Upon fire detection, water is immediately ready to be sprayed, providing a rapid response to the fire.
Reduced Risk of False Activation: The system only works if two conditions are met, reducing the chances of the system being triggered without a valid reason.

Cons:

High Installation Cost: These systems are generally more expensive to install compared to wet pipe or dry pipe systems due to complexity and additional components.
More Complex Maintenance: Requires more frequent testing and maintenance to ensure that all components, including detectors and valves, are functioning properly.

4. Deluge Fire Sprinkler

A deluge type fire sprinkler is a system where all sprinkler heads are open and connected to an empty pipe.

When the system is activated, the valves open and water flows to all sprinkler heads simultaneously.

This system is designed to provide maximum protection in areas that have a high fire risk or where fire can spread quickly, such as in chemical storage or factories.

Pros:

Fast Extinguishing: Suitable for high fire risk areas that require fast extinguishing, such as chemical plants.
Large Coverage: Deluge fire sprinkler capable of extinguishing fires in large areas simultaneously.

Cons:

High Installation Cost: Installation of these systems is usually more expensive compared to other types of sprinklers due to the complexity and number of components required.
Complicated Maintenance: Requires more frequent maintenance and testing to ensure all components are functioning properly, as well as to prevent corrosion and damage.

Also Read: “The SNI Certification for a Fire Hydrant Installation“

5. Foam Fire Sprinkler

This type of sprinkler combines water with foam concentrate to extinguish the fire. The foam helps cover the fuel, preventing contact with oxygen and extinguishing the fire more effectively.

Pros:

High Effectiveness: Highly effective for flammable liquid fires, such as in aircraft hangars or fuel storage facilities.
Fast Control: Foam works faster in covering and cooling the fire compared to water alone.

Cons:

Risk of Environmental Damage: Fire-fighting foam can have a negative impact on the environment if not managed properly, including water pollution.

And that’s a wrap! The 5 types of fire sprinklers to further expand your knowledge about fire prevention systems!

But did you know that the installation of fire sprinklers is one of the mandatory things that needs to be followed according to the SNI?

The fire sprinklers are crucial components of a fire prevention system, thus, its installation is strictly regulated to ensure the safety and effectiveness of the fire sprinkler system itself.

As for the SNI number of this subject, the regulations and methods of installing the fire sprinkler are clearly outlined in SNI 03-3989-2000.