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HDPE Dual Containment Piping Systems
HDPE Dual Wall Containment Pipe:
HDPE dual containment HDPE pipe systems can be broadly characterized in three categories. The first dual containment system fuses both the carrier pipe and the containment pipe simultaneously. The second system requires electrofusion or an annular heating iron. The third system uses a slip lined conductor pipe inside the containment pipe.
System 1: simultaneously fused system which utilizes standard fusion procedures. Size capabilities range from 2" through 18" for the carrier pipe.
System 2: utilizes standard fusion procedures on the carrier pipe and an annular heating iron or electrofusion coupling on the containment pipe. HDPE Pipe and fitting systems are available from 2" through 8".
System 3: the containment is installed first, then the conductor pipe is slip lined inside the containment pipe. The carrier pipe is not restrained and is not centered in the containment pipe. This system is usually best suited for smaller pipe sizes, where long coils are available, and in circumstances requiring no restraint.