3-Layer SWR Drainage Pipes

20 Jan 2025

How 3-Layer SWR Drainage Pipes Make a Difference?

Soil, Waste, and Rain (SWR) pipes are an essential part of plumbing systems, designed to carry away waste water and rainwater from homes and buildings. Made from high-quality, corrosion-resistant materials, these pipes offer durability and reliability. SWR pipes are widely used for their ability to handle the flow of both waste and stormwater efficiently, preventing blockages and leaks. These pipes have long been a preferred choice for efficient drainage in residential and commercial buildings. 

Recent advancements in pipe technology have taken performance to new heights, especially with the introduction of layered SWR pipes. Let us understand the significance of layered SWR pipes, and how they enhance their performance.  

The Advantage of Layered SWR Pipes 

Layered SWR pipes offer several advantages that make them a superior choice for drainage systems. Here’s how their multiple layers make a real difference:

  • Noise Reduction: The layered construction helps absorb and dampen sound from the water flowing through the pipes, which makes them suitable for residential buildings. This ensures quieter plumbing, which is especially important in homes or offices where peace is valued.
  • Enhanced Durability: One of the standout features of layered pipes is their exceptional resistance to impacts and physical stress. Thanks to their robust design, these SWR pipes can last for 50+ years with proper installation. 
  • Chemical Resistance: The inner layer of layered SWR pipe and fittings is designed to withstand acids and chemicals typically found in household waste, while the outer layer offers protection against external chemical exposure. 
  • Superior Flow: The smooth inner surface of layered pipes reduces friction, which minimises the buildup of scale and deposits. This ensures that the pipes are less likely to develop blockages and maintain consistent water flow.
  • Temperature Performance: Layered SWR pipes are built to handle both hot and cold water without compromising their structural integrity. Their multi-layered design reduces expansion and contraction, ensuring they perform reliably across a wide range of temperatures.

By integrating these advanced features, layered SWR pipes offer a superior solution for efficient, long-lasting drainage systems that perform reliably under various conditions.

Astral Drain Pro: SWR Pipes and Fittings

Engineered with advanced mineral-filled polypropylene (PP), the Drain Pro system sets a new standard in the SWR pipe and fittings industry. The design provides superior performance and durability, which makes it an ideal choice for a wide range of drainage applications. 

Understanding the 3-Layer Technology in Drain Pro SWR Pipes and Fittings 

Each layer of Drain Pro 3-layer SWR pipe serves a distinct function, ensuring that the pipe is stronger, more reliable, and able to withstand various pressures and challenges. 

  1. Outer Layer: This is designed to withstand the harshest external conditions, such as UV rays, making the pipe resistant to sun exposure and environmental wear.
  2. Middle Layer: The core layer is reinforced for mechanical strength, ensuring that the pipe can handle high pressures and heavy loads without cracking or deforming.
  3. Inner Layer: This ultra-smooth layer promotes the efficient flow of waste, soil, and rainwater while preventing the accumulation of debris and blockages, thereby enhancing the overall flow efficiency.

Features of Astral Drain SWR Pipes 

  • Exceptional Strength: The reinforced middle layer ensures the pipe can endure heavy loads and high-pressure situations without compromising its structural integrity.
  • Superior Flow Efficiency: The smooth inner surface reduces the risk of blockages, ensuring a continuous and effective flow of waste and water.
  • Chemical Resistance: Drain Pro pipes are designed to withstand exposure to a wide range of chemicals, maintaining their integrity even in challenging environments.
  • Thermal Resistance: With long-term temperature resistance of up to 90°C and short-term resistance of up to 95°C, Drain Pro is well-suited for handling hot wastewater, making it suitable for industrial applications.
  • UV Protection: The outer layer protects against UV rays, ensuring the pipes remain intact even when exposed to the elements for extended periods.

Whether you are installing a drainage system for a residential building, a commercial complex, or an industrial site, Drain Pro SWR fittings and pipes ensure that the system will perform efficiently for years to come. With its advanced 3-layer design, Astral Drain Pro delivers the ultimate solution for modern drainage needs, offering a dependable and low-maintenance option for any project.


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