ISO 11296-7:2019

Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks — Part 7: Lining with spirally-wound pipes

Publication date:   Jan 11, 2019

General information

90.92 Standard to be revised   Jun 6, 2024

ISO

ISO/TC 138/SC 8 Rehabilitation of pipeline systems

International Standard

93.030   External sewage systems | 23.040.45   Plastics fittings | 23.040.20   Plastics pipes | 91.140.80   Drainage systems

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Scope

This document, in conjunction with ISO 11296-1, specifies requirements and test methods for pipes which are formed on site by spirally winding and jointing a pre-manufactured profiled plastics strip, or a profiled plastics strip and integral locking joiner strip, and used for the renovation of underground non-pressure drainage and sewerage networks.
It applies to spirally-wound pipes of fixed or variable diameter made of profiled plastics strips, with or without steel stiffening elements, and installed by one of two methods.
The first method employs a dedicated winding machine in front of the open end of an existing pipeline, e.g. in a manhole. The pipes thus formed are simultaneously inserted into the existing pipeline by the winding forces, and by certain techniques can also be expanded in diameter after or during insertion.
The second method employs a dedicated winding machine which forms the pipe as it traverses the existing pipeline from one manhole to the next.
It applies to profiled plastics strips of unplasticized poly(vinyl chloride) (PVC U) with integral locking mechanism, or of high density polyethylene (HDPE) with integrally welded joints.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 11296-7:2011

NOW

PUBLISHED
ISO 11296-7:2019
90.92 Standard to be revised
Jun 6, 2024

REVISED BY

IN_DEVELOPMENT
ISO/AWI 11300-4