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Types of Drainage Pipe and Their Ideal Use

When selecting drainage pipes, the material plays a key role in determining the pipe’s suitability for specific applications. Below is a guide to the different types of drainage pipes and the best uses for each.
Copper Pipes
  • Best For: Water supply lines.
  • Benefits: Highly resistant to corrosion and an excellent conductor of heat, making them ideal for hot water systems. The heat helps maintain water temperature.
  • Drawbacks: Expensive compared to other materials.
PVC Pipes
  • Best For: General drainage and water transport.
  • Benefits: Lightweight, flexible, and watertight. Corrosion-resistant, flame-resistant, and ideal for transporting drinking water. Has a lifespan of up to 100 years and is recyclable, making it an eco-friendly option.
  • Drawbacks: Not suitable for extremely high temperatures.
PEX Pipes
  • Best For: Hot and cold water systems.
  • Benefits: Made from high-density polyethylene, PEX pipes are flexible, durable, and can bend up to a 90-degree angle. They perform well in a wide range of temperatures, from below freezing to over 200°F. Easy installation reduces labor costs.
  • Drawbacks: Limited UV resistance, so it should not be used in outdoor applications without protection.
CPVC Pipes
  • Best For: Hot water systems in specific applications.
  • Benefits: CPVC can withstand higher temperatures than standard PVC, making it ideal for hot water lines up to 140°F. Low-maintenance and easy to install.
  • Drawbacks: Can become brittle if exposed to very high temperatures, not as durable as copper in extreme heat.
Polypropylene Pipes
  • Best For: Chemical drainage systems.
  • Benefits: Exceptionally lightweight with excellent chemical and abrasion resistance. Reliable for thermal and electrical insulation.
  • Drawbacks: Not as commonly used for general water supply lines.
Galvanized Steel Pipes
  • Best For: Heavy-duty applications like transporting oil, gas, or water.
  • Benefits: Coated with a layer of zinc to prevent rust and corrosion. Extremely durable, making it ideal for industrial or harsh environments.
  • Drawbacks: Heavier than other pipe types and can rust over time if the coating is damaged.
Summary
  • Copper is best for water supply lines requiring heat conduction.
  • PVC is versatile, corrosion-resistant, and cost-effective for most drainage needs.
  • PEX offers flexibility and durability, perfect for hot and cold water systems.
  • CPVC withstands higher temperatures than PVC but is more brittle than copper.
  • Polypropylene excels in chemical-resistant applications.
  • Galvanized Steel is durable for industrial uses but can rust if the coating is damaged.
By understanding the benefits and limitations of each pipe type, you can select the most appropriate material for your drainage system needs.


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