Electrofusion reducing coupling Weba PE 40 x 32 black – ductile polyethylene pipe fitting

Electrofusion reducing coupling Weba PE 40 x 32 black is a ductile polyethylene fitting designed to join PE pipes of 40 mm and 32 mm diameters using electrofusion technology. The fitting incorporates embedded heating elements that produce a controlled fusion between the coupling and pipe surfaces, creating a homogeneous, welded joint that is resistant to leakage and suitable for pressurized systems. The black PE material provides UV resistance and mechanical durability appropriate for buried and exposed installations where a reliable diameter transition is required.

Advantages

The electrofusion method ensures a consistent, uniform weld with minimal operator variability, reducing the risk of joint failure compared with mechanical couplings. Integrated heating coils and a compact body allow for rapid installation and a smooth internal bore that minimises flow restrictions. The fitting is compatible with standard PE pipe materials and pressure classes used in potable water, gas and general pressure piping, offering corrosion resistance and long-term service life.

Suitable for

• Transition between 40 mm and 32 mm polyethylene pipes
• Potable water distribution networks
• Low- and medium-pressure gas distribution (where PE is specified)
• Irrigation and agricultural piping systems
• Underground and above-ground pressure piping requiring welded joints

Key specifications

• Material: Ductile polyethylene (PE)
• Colour: Black (UV-resistant)
• Connection type: Electrofusion reducing coupling
• Compatible pipe diameters: 40 mm to 32 mm
• Joint type: Fusion-welded with embedded heating elements
• Suitable media: Drinking water, gas, general pressurized fluids
• Installation environment: Buried or exposed pressure piping

How to use

Prepare both pipe ends by cutting square and removing any dirt, oxidation or lubricant. Align the 40 mm and 32 mm pipes into the appropriate ends of the coupling, ensuring full insertion depth. Clean and scrape pipe surfaces in the fusion zone according to applicable standards to expose fresh polyethylene. Connect the electrofusion control unit to the coupling's terminals and follow the specified welding program for the coupling type and pipe diameters. Allow the cooling time recommended by the fusion equipment before applying pressure or mechanical load to the joint.

Usage recommendations

Use qualified electrofusion equipment and follow manufacturer fusion parameters and safety procedures. Store fittings away from direct sunlight and extreme temperatures prior to installation. For critical potable water or gas installations, verify material compatibility and local regulations before use and perform pressure testing after fusion to confirm joint integrity.