Advantages and history of CIPP repair pipeline

The CIPP flipping technique (cured in place pipe) has the following advantages:

(1) Short construction period: It only takes about 1 day from the processing of the lining material to the preparation, turnover, heating, and curing of the construction site.

(2) The equipment occupies a small area: only small boilers and hot water circulating pumps are needed, and the road area is insignificant during construction, the noise is low, and the impact on road traffic is small.

(3) The lining pipe is durable and practical: the lining pipe has the advantages of corrosion resistance and wears resistance. The material is good, and it can completely solve the problem of groundwater infiltration once and for all. The pipeline has a little cross-sectional area loss, a smooth surface, and reduced water friction (the friction coefficient is reduced from 0.013 to 0.010), which improves the flow capacity of the pipeline.

(4) preserve the environment and save resources: no road excavation, no rubbish, no traffic jams.

The CIPP inversion technique was invented in the United Kingdom in the 1970s and then began to be implemented in Europe and the United States. In 1983, the British water research center WRC (water research center) issued technical standards for branchless repair and renewal of underground pipelines in the upper part of the world.

National Materials Testing Center of the United States formulated and promulgated the construction technical specification for branchless pipeline repair and the atm specification for structural design in 1988, which the design and construction management of the technology. Beginning in the 1990s, CIPP technology has been widely used all over the world due to its low price and minimal impact on traffic. Take Japan as an example. Among the approximately 1,500 kilometers of pipelines that have been repaired using branchless technology since 1990, more than 85% of the total length has been repaired using CIPP technology. The technology of the CIPP overturning method is very mature. Materials should be given high attention if we use the steel pipe for water supply. No matter you purchase a seamless or ERW steel pipe, you should check that the original material is made for steel pipe.