Electrofusion is a method of joining MDPE, HDPE and other plastic pipes using special fittings that have built-in electric heating elements which are used to weld the joint together.

The pipes to be joined are cleaned, inserted into the electrofusion fitting (with a temporary clamp if required) and a voltage (typically 40V) is applied for a fixed time depending on the fitting in use. The built in heater coils then melt the inside of the fitting and the outside of the pipe wall, which weld together producing a very strong homogeneous joint. The assembly is then left to cool for a specified time. The joints produced tend to be more reliable than threaded fittings sealed with O-rings.



Polyethylene couplings are used to joint pipe or fitings within the PE pipeline systems. They are available in PE100 SDR 7.4 PN25, SDR11 PN16 and SDR17 PN10.

There are a number of different brands of couplings available, for more information on these;




All fittings are manufactured to comply with a number of international standards. These include ISO 4427, ISO 8085, EN 1555, EN 12201, AS/NZS 4129:2008, AFNOR NF 136


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