HDPE pipe is butt fused together using a fusion welder. A clamping device holds the pipe pieces as the pipe ends are "faced" with a machining tool to establish a clean mating surface. A heating element or heating plate is inserted between the faced ends, and the pipe pieces are drawn together against the heating plate. A melt pattern is formed around both pipe ends. Once the correct temperature is reached, the heating plate is quickly removed, and the melt ends are drawn together with a precise force [how?]. The end result is a fusion joint that is as strong as or stronger than the pipe itself, and this creates a leak-free joint of HDPE pipe.
A very good job, extremely well done... everything was left much cleaner than on arrival. If the rest of our dealings with Powerco are equal to the service provided by Paneltec, we are all on a winner.
Rob and Diedre Greer, South Launceston