PPR (Polypropylene Random Copolymer) Pipes


  • Material: PPR
  • Color: Available in multiple colors
  • Max. Length: up to 6m
  • Max. Pressure: up to 1.30Mpa
  • Diameter: 18mm ~ 36mm
  • Wall Thickness: up to 36mm

Salient Features

  • Ability to withstand high temperatures, making them suitable for both hot and cold water distribution systems
  • Easy to install, long service life
  • Excellent resistance to a wide range of chemicals
  • Resistant to corrosion and scaling

Polypropylene Random Copolymer (PPR) pipes have emerged as a popular choice in modern plumbing systems due to their versatile properties, ease of installation, and durability. These pipes are made from a type of thermoplastic polymer known as polypropylene, which is modified through copolymerization to enhance its performance in plumbing applications.

Formation of PPR Pipes

The formation of PPR (Polypropylene Random Copolymer) pipes involves a specific manufacturing process that transforms polypropylene resin into the final product. Here are the key steps in the formation of PPR pipes:

  1. Raw Material Selection:

    They are made from polypropylene, a thermoplastic polymer. The choice of high-quality polypropylene resin is crucial to ensure the desired properties of the final PPR product.

  2. Copolymerization Process:

    The polypropylene resin undergoes a copolymerization process. In the case of PPR pipes, this involves the random copolymerization of polypropylene with a small amount of ethylene. This modification enhances the material’s flexibility, impact resistance, and other mechanical properties.

  3. Extrusion:

    The copolymerized polypropylene is then melted and extruded through a die to form the initial shape of the pipe. This extrusion process creates a continuous length of the pipe with the required diameter.

  4. Cooling:

    The extruded PPR pipe is rapidly cooled to solidify its shape. The cooling process is essential for maintaining the structural integrity of the pipe and preventing deformation.

  5. Cutting:

    Once the PPR pipe has solidified, it is cut into the desired lengths. These lengths will be the individual PPR pipes that are used in plumbing installations.

  6. Quality Control:

    Quality control measures are implemented throughout the manufacturing process. This includes monitoring the composition of the polypropylene resin, ensuring proper extrusion parameters, and conducting tests on the final product to verify its performance characteristics.

  7. Color Addition (Optional):

    They are often produced in different colors for identification purposes. Color additives may be introduced during the extrusion process to distinguish between pipes intended for hot water, cold water, or other specific uses.

  8. Joining Method Considerations:

    They are commonly joined using a heat fusion welding technique. This involves heating the pipe and fittings to their melting points and then pressing them together to create a strong and leak-resistant joint. The compatibility of PPR pipes with heat fusion welding contributes to their ease of installation.

Throughout the manufacturing process, adherence to quality standards and consistency in production parameters are critical to producing PPR pipes with the desired properties. Properly manufactured PPR pipes exhibit characteristics such as high-temperature resistance, chemical stability, and durability, making them well-suited for various plumbing applications.


  • Potable Water Supply
  • Hot and Cold Water Distribution
  • Chemical Transport
  • Compressed Air Systems
  • Solar Water Heating Systems
  • Hydronic Heating Systems
  • Heating Systems