Weholite pipe on truck Uponor Infra factory

Weholite pipes

Weholite - a modern system designed for the construction of external sewage systems


Weholite is a modern system of large-diameter, structural polyethylene (PE) pipes and fittings, designed for the construction of complete external sewer pipelines. The system is a result of the long-lasting research and development works carried out by our corporation. The combination of an appropriate raw material and an advanced technology enabled us to create a product of a high load resistance.

Weholite pipes are available in a broad range of diameters, from 300 to 3000 mm, ensuring good adaptability for various projects. The standard pipe length is 12.5 m. Weholite pipes (socket or plain- ended) are manufactured with ring stiffness classes from SN2 to SN16 (kN/m2) for applications in various ground conditions. There is a possibility to order special, non-standard pipes of any length and ring stiffness.Our comprehensive offer comprises segmented bends of any angle, tees, reducers, connectors, and non-standard elements used for a particular project. The Weholite system also encompasses access chambers and manholes (with prefabricated bottom or eccentric) and tanks.

Main advantages of Weholite

  • Unique combination of durability and flexibility (ring stiffness as per PN-EN ISO 9969 from SN2 to SN16)
  • Ultimate corrosion resistance and broad chemical resistance
  • Low weight (easy transport and unloading)
  • Suitability for overground systems/networks (resistance to UV)
  • Easy installation regardless of weather conditions (also in sub-zero temperatures)
  • High abrasion resistance
  • Suitability for operation in the freezing zone
  • Suitability for extrusion welding, which guarantees 100% leak tightness in a broad range of operating conditions
  • Complete protection against root penetration
  • According to Technical Opinion of Central Mining Institute (GIG) they may be applied in mining damage areas (up to level 4)

Jointing methods

The Weholite system guarantees simple and durable methods of jointing that are adapted to miscellaneous types of applications:

  • extrusive welding – a preferred method of jointing the Weholite pipes, used with pipes of diameter larger than 800 mm, especially in relining renovation projects;
  • socket-and-spigot joints - for pipeline lying in a range of diameters from 300 to 1000 mm;
  • thread joints – for renovation of devastated canals and for constructing culverts, diameters up to 1000 mm; larger diameters available on request;
  • Weholite snap joint – used in pipeline renovations available in a range of diameters from 600 to 1200 mm.
Weholite spawanie ekstruderem ręcznym

We can not stop the rain - but we can prevent floods

Daily water solutions based on Weholite create unique opportunities for storage, infiltration, pumping and water treatment. Contact us and we will help you find the best solution to your water problems.

More information on Weholite


Uponor Infra - piping systems

Brochure ENG version

PDF 1.42MB

Product catalogue 2019

Product catalogue PL, ENG, RUS version

PDF 11.99MB

Uponor Infra - Gravity systems

Manual ENG version

PDF 35.48MB

Uponor Infra - WLI 3000 Extrusion welding machine

Brochure ENG version

PDF 3.20MB

Support for customised storm water solutions

Do you need a tailor made product, or a turnkey solutions on a global scale? We offer full support within: design & calculations, tailor made products, field services, technical support and project management.

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