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Pipes used in Fire Protection Installation


Mild steel pipe and galvanized iron pipe are two different types of pipes that are commonly used in various applications, including fire protection projects. Each of these pipes has its own unique characteristics that make it suitable for specific purposes.


Mild steel pipe, also known as carbon steel pipe, is a type of steel pipe that contains low amounts of carbon. It is commonly used in applications where high strength is not required but durability and affordability are important. Mild steel pipes are also commonly used for transporting water, gas, and oil.


Mild steel pipes are made by mixing iron with carbon and other elements. The low carbon content in these pipes makes them more ductile and flexible, which is advantageous in applications where bending is required. Additionally, mild steel pipes are known for their toughness, which means that they can withstand significant pressure and weight without breaking.


Mild steel pipes are also known for their corrosion resistance, which makes them suitable for use in indoor applications. However, in outdoor environments, mild steel pipes may be prone to rust and corrosion, which can affect their durability and longevity. Therefore, in certain applications, it may be necessary to protect mild steel pipes with additional coatings or treatments.


Galvanized iron pipe, on the other hand, is a type of pipe that has been coated with a layer of zinc to protect it from corrosion. Galvanization provides a protective barrier against rust and other forms of corrosion, making it ideal for outdoor applications or in areas with high humidity.



Galvanized iron pipes are made by dipping iron pipes into a bath of molten zinc, which forms a layer of zinc on the surface of the pipe. This layer of zinc protects the underlying iron from corrosion and rust, which significantly increases the lifespan of the pipe. Additionally, galvanized iron pipes are also known for their toughness, ductility, and weldability.


In fire protection projects, pipes are typically classified based on their grade and schedule. The grade of the pipe refers to the strength of the pipe, while the schedule refers to the thickness of the pipe.


Pipe grades A, B, and C are commonly used in fire protection systems. Grade A pipes have the lowest yield strength, followed by grade B and then grade C. Pipe schedule 40 and schedule 80 refer to the thickness of the pipe walls, with schedule 80 being thicker and stronger than schedule 40.


In fire protection projects, it is important to choose the right type of pipe based on the specific requirements of the system. For example, if the system is exposed to outdoor elements or high humidity, galvanized iron pipe may be a better choice due to its resistance to corrosion. On the other hand, if high strength is required, a grade B or grade C pipe may be more appropriate.


It is important to consult with a qualified engineer to determine the appropriate pipe specifications for a specific fire protection system. The engineer can take into consideration the type of building, the location of the building, and the specific requirements of the fire protection system.


In summary, both mild steel pipe and galvanized iron pipe are commonly used in various applications, including fire protection projects. They have their own unique characteristics that make them suitable for different purposes. Mild steel pipes are known for their toughness, ductility, and affordability, while galvanized iron pipes are known for their resistance to corrosion and longevity. It is important to choose the right type of pipe based on the specific requirements of the project and to consult with a qualified engineer to determine the appropriate pipe specifications.

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Unknown member
May 05, 2023

Great sharing. Is black steel pipe also an option for fire protection systems or is it not recommended?

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Depends on the specification set forth by the consultant. Usually for Hosereel the required is GI Class B, for Wet Riser would be GI Class C and Sprinkler will be Black Pipe Class B. But it all depends on type of project, client, consultant and whether or not its a private sector or government project.

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