Fold & Form

Fold and Form is used to rehabilitate pipe between manholes. Varying in standard dimension ratios, Ultra Liner PVC alloy comes on a reel with a predetermined pipe length and diameter. It is heated, pulled into the host pipe then reformed with steam and air. Service laterals must be reinstate robotically with cutters and camera. The most common of host pipes are VCP, ACP, CMP, RCP, CIP, DI and of course ABS and PVC. The plastic host pipe are more difficult to reinstate laterals in; the blade of the cutter can not distinguish between plastics. Although smooth seamless pipe has less friction lose and compensated for this diameter change. Fold and form installation and laterals reinstatement increases in difficulty as the diameter decreases. Four inch and six inch pipe are more difficult to install than an eight inch pipe.