KAN-therm: Connecting technology

Connecting technology

KAN-therm PP polypropylene elements are assembled by a polyfusion muff-welding process; in this method both surfaces to be joined, the external pipe surface and the internal surface of the fitting muff are heated up simultaneously at 260 0C. For heating (plasticization) an electric heater with a heating plate with exchangeable (for every diameter) covered in PTFE heating cover plates of is used. Depending on the diameter this heating takes from 5 to 50 seconds. After that time heated elements are taken out of heating plates and the pipe is immediately inserted into the fitting muff (no rotation movement allowed!) to a marked depth. Then the process of mutual diffusion and mixing of particles of both elements takes place.

With this welding process all the welding parameters must be maintained (warming up time, joining time and cooling time and the welding depth).

1. Cutting pipes with scissors.
2. Removing the aluminium foil with a foil remover.


3. Marking the welding depth.
4. Heating up the pipe and the fitting.


5. Joining the elements.
6. Holding together and cooling.


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