Extension pipes

For extending pipes on outlets or other pipes with DN diameters.

Extension pipes – when pipe length needs adjustment

When installing outlets and drainage systems, it is often necessary to extend the pipe so it fits with the building’s existing pipework. Here, JUAL’s extension pipes offer a simple and effective solution, making it possible to increase pipe length without compromising on tightness, durability, or the overall function of the system.

The extension pipes are mounted directly onto the outlet from the roof drain, ensuring that rainwater is guided precisely to the intended destination – for example, a stormwater pipe or a downpipe.

An essential part of a well-functioning drainage system

A reliable roof drainage system requires all components to work together. With an extension pipe from JUAL, you gain optimal flexibility when the drain needs to be adapted to the building layout or connected to longer pipe runs. This reduces the need for custom adjustments and minimises the risk of leaks and water accumulation on the roof.

The extension pipes are fully compatible with JUAL’s outlets and accessories. This makes it possible to assemble a complete and uniform system, where all parts are matched in both dimensions and functionality.

Easy and secure installation

Our extension pipes are designed with a focus on user-friendliness and tight joints. They can be mounted quickly and easily without special tools and fit directly onto JUAL’s outlets and accessories.

  • Simple assembly without welding
  • Compatible with JUAL’s standard components
  • Available in multiple lengths and dimensions
  • Tight and stable joints without risk of leakage

This ensures a fast workflow and a reliable installation – whether for residential, industrial, or institutional buildings.

Advantages of extension pipes from JUAL


✔ Ensures precise pipe length without improvisation

✔ Quick and simple installation

✔ Available in multiple materials and dimensions

✔ High tightness and operational reliability

✔ Compatible with JUAL’s entire range of outlets