There are several reasons why one would choose to use cast iron pipe over plastic pipe. First and foremost, cast iron pipe is highly effective in preventing the spread of fire. This is because cast iron is a non-combustible material. Unlike plastic pipe, which can melt or burn when exposed to high temperatures, cast iron pipe remains intact and does not contribute to the spread of flames.
One of the main advantages of cast iron pipe in terms of fire safety is its ability to withstand high temperatures. In the event of a fire, plastic pipe can quickly melt or burn away, creating openings through which smoke and flames can pass. This can lead to the rapid spread of fire throughout a building, endangering lives and causing extensive damage. In contrast, cast iron pipe retains its structural integrity even under extreme heat, preventing the fire from easily spreading through the piping system.
Furthermore, cast iron pipe is highly durable and long-lasting. It has been used for many decades in various applications, including plumbing and drainage systems, and has proven its reliability over time. Plastic pipe, on the other hand, may degrade over time due to exposure to UV rays, chemicals, or fluctuating temperatures. This can lead to leaks, cracks, or even complete failure of the piping system, resulting in costly repairs and potential water damage.
Another advantage of cast iron pipe is its excellent sound insulation properties. The dense and heavy nature of cast iron helps to minimize the transmission of noise through the piping system. This can be particularly beneficial in buildings where noise reduction is important, such as hospitals, schools, or residential complexes.
In addition, cast iron pipe has a high resistance to corrosion, making it suitable for use in both above-ground and underground applications. This resistance to corrosion ensures that the pipe remains structurally sound and maintains its functionality over an extended period of time. Plastic pipe, on the other hand, may be prone to corrosion or degradation when exposed to certain chemicals or environmental conditions.
While it is true that plastic pipe is generally more cost-effective and easier to install compared to cast iron pipe, the superior fire resistance, durability, sound insulation, and corrosion resistance of cast iron make it a preferred choice in certain applications. It is important to carefully consider the specific requirements and potential risks associated with a project before deciding on the type of pipe to be used.
The use of cast iron pipe over plastic pipe offers significant advantages in terms of fire safety, durability, sound insulation, and resistance to corrosion. These factors make cast iron pipe a reliable and long-lasting option for various plumbing and drainage systems.