Weholite* - a modern system designed for the construction of external sewage systems
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.
* DN 300÷900 - Weholite
DN 1000÷3000 - Weholite PLUS
Advantages of Weholite
- Unique combination of durability and flexibility
- 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 extrusion welding, which guarantees 100% leak tightness in a broad range of operating conditions
- Complete protection against root penetration
- Possibility to apply in mining damage areas (up to level 4).
Extrusion welding is one of the most frequently used methods of joining Weholite pipes. It can be performed with a manual extruder for pipes with a whole range of diameters (one-sided or two-sided welding), including relining renovations. The welded joint is inseparable and guarantees the possibility of transferring axial longitudinal forces.
Welding with WLI-3000 machine
Extrusion welding can be carried out automatically with the WLI-3000 machine. It is a technology for connecting large-diameter Weholite pipes with diameters from 1400 mm from the inside.
Socket connection (socket with a gasket or double socket with two gaskets) is used for laying pipelines in the diameter range from 300 to 1000 mm. At least double-lip seals are made of EPDM (as well as SBR or NBR).
Thread joint is used in the renovation of damaged canals and for the construction of culverts. The connection is sand-proof. Water-tightness is achieved by making an external extrusion weld. The thread joint is available in diameters up to 1000 mm, larger diameters is available on request.
Weholite snap joint
Weholite snap joint is a mechanical, inseparable connection of Weholite pipes, which does not increase the outer diameter of the pipeline in the places of connections. It is most often used in the renovation of pipelines and in the case of laying pipes in unstable soil and water conditions. Available in diameters from 600 to 1200 mm.
Weholite PLUS has already received all legally required approvals for use on the construction market. The first stage of system implementation covered diameters from 1000 to 3000 mm, the next stage covers the remaining diameter range.
Exceptional flexibility of Weholite
Flexibility is the distinctive feature of PE pipes among other conventional materials. Thanks to it, they perfectly cooperate with the ground, as if they were its natural element. Weholite pipe is flexible and does not crack under the influence of soil pressure, even with 30% deflection.
Automatic welding of Weholite pipes with the WLI-3000 machine
Automatic welding with the WLI-3000 machine is the latest technology of connecting Weholite large-diameter pipes from the inside. The joint obtained in this way is homogeneous in material, durable, and guarantees 100% tightness throughout the entire period of operation.
More information on Weholite
Uponor Infra - piping systems
Brochure ENG version
Product catalogue 2019
Product catalogue PL, ENG, RUS version
Uponor Infra - Gravity systems
Manual ENG version
Uponor Infra - WLI 3000 Extrusion welding machine
Brochure ENG version
Support for customised 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.