How do your pipes, pumps and valves aid in the construction of water and wastewater reticulation? WvC The preferred methods to join HDPE pipes are either electro-fusion or butt welding, as this ensures a permanent joint. Rare Plastics manufactures flexible HDPE pipes that are ideal for dolomitic areas, as the flexibility of the pipe and the joint ensure no leaks occur when there is movement in the soil. This butt-welded jointed method can be used across our entire range of 110 mm to 1 000 mm pipes.

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