Butt fusion electrofusion coupling USMetrix Mufa elektrooporowa PE 40 (DWZ) (S)

Electrofusion coupling USMetrix Mufa elektrooporowa PE 40 (DWZ) (S) is a polyethylene (PE) coupling engineered for electrofusion joining of PE pipes with a nominal diameter of 40 mm. The coupling provides an integrated electrically heated fusion element that creates a continuous, homogeneous joint between pipe ends. Designed for typical low-pressure applications in water and gas distribution systems, the coupling ensures a leak-resistant connection when installed with compatible electrofusion equipment and following recommended welding parameters.

Advantages

The USMetrix electrofusion coupling offers a reliable fusion interface that reduces assembly time compared with mechanical fittings and eliminates the need for additional sealing materials. Its design supports controlled heat distribution during the electrofusion process to produce consistent joints. The coupling is corrosion-resistant and compatible with standard PE pipe materials used in distribution networks, providing long-term service life under correct installation and operating conditions.

Suitable for

• Connecting polyethylene (PE) pipes with 40 mm nominal diameter
• Water distribution systems under low-pressure conditions
• Gas distribution in networks designed for PE piping and approved electrofusion fittings
• Repairs and extensions of existing PE pipelines

Key specifications

• Material: polyethylene (PE)
• Nominal pipe diameter: 40 mm
• Connection type: electrofusion coupling with integrated heating element
• Application pressure range: suitable for typical low-pressure distribution systems (follow local standards for exact pressure ratings)
• Compatibility: for use with PE pipes of corresponding SDR and wall thickness when matched to appropriate welding parameters
• Corrosion resistance: inherent to PE material

How to use

Prepare pipe ends by cutting squarely and cleaning the surfaces from dirt, grease and oxidized layers. Align the pipe ends into the coupling and secure them to prevent movement during welding. Use a compatible electrofusion control unit and set the welding program according to the coupling manufacturer’s recommended parameters for 40 mm PE pipes. Initiate the heating cycle and observe the complete fusion and cooling times before applying pressure or moving the joint. After cooling, inspect the visible weld bead and verify the joint integrity according to local standards.

Usage recommendations

Use qualified personnel and certified electrofusion equipment for installation. Store couplings in a clean, dry environment away from direct sunlight and solvents. Always consult applicable standards and the coupling manufacturer’s technical instructions for compatibility with specific PE pipe types, acceptable pressure ratings, and detailed welding programs.