Electrofusion welding

What is electrofusion welding and what is it used for?

Electrofusion welding is a technique used to join polyethylene pipes by utilizing special fittings—such as couplers, reducers, or tees—that have built-in heating elements. This process is characterized by high speed and produces exceptionally strong, reliable joints.

Using modern, high-efficiency electrofusion welding equipment, it is possible not only to join polyethylene pipes but also to connect pipes made from other thermoplastic materials, including HDPE, PP-R, and PP. These devices are therefore widely used in the construction of sanitary, gas, water supply, heating, and sewage networks, as well as in the increasingly popular heat pump installations.

How does electrofusion welding work and how is it performed?

Before beginning the electrofusion welding process, the pipes to be joined must be properly prepared. First, approximately 0.2 mm of the outer surface material is removed. Then, a clamp is used to securely fix the pipe and fitting in a static position. The next steps involve creating a permanent bond between the installation components. The essential tool for this process is the electrofusion welding machine. When connected to the pipe and fitting, the machine applies voltage, causing the material to melt due to the electric current and resulting in a solid, durable joint.

Once the welding is complete, the joint must be allowed to cool before removing the clamps that were used to secure the components during the process.

 

If you are interested in the capabilities offered by electrofusion welding, please note that MONTER INSTALL GROUP provides fully comprehensive services in this area, carried out by our highly qualified team using modern electrofusion equipment capable of handling pipe diameters up to 450 mm.