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Spiral Wound PVC – Machine spiral wound PVC liner is intended for use in the rehabilitation of sanitary and storm sewers without excavation. The lining process uses a continuous one piece PVC profile strip, which is machine wound directly into the deteriorated pipeline from an existing access chamber or manhole. The system consists of a single, one part PVC profile strip with “T” shaped ribs on one side. The edges of the strip interlock as it is spirally wound to form a liner inside the host pipe. A range of PVC profiles are available with different profile, rib, and thickness configurations to match project design requirements. The winding process is continuous until the complete length of the existing pipe between access points or manholes has been lined. 

Video Courtesy of  – Sekisui SPR