Hot Water Cure CIPP Water Inversion Sewer Trenchless Sewer Repair Pipe Bursting

CIPP sewer trenchless repair material for hot water cure and water inversion

CIPP inversion trenchless repair technology with hot water heating and cure

A Trenchless Pipeline Repair Method in which the felts filled with thermosetting resin is poured into the old pipe and then heated and solidified to form a new lining pipe in the pipe.

Selection of inversion CIPP repair materials:

The hot water curing CIPP repair materials widely used in the market include pinhole felt (non-woven fabric), polyethylene coating (PU or PTU film), and unsaturated resin, that is, non-woven fabric + resin. The bending elastic modulus of the finished products can generally reach 2500mpa~3000mpa.

The process is:

Construction preparation → site traffic coordination and road occupation treatment → pipeline drainage → pipeline cleaning and water stop → CCTV inspection before repair, lining inversion construction and curing → CCTV inspection after repair → site cleaning

DAO products range covers four series and more than 20 models in the underground pipeline trenchless repair industry:

1. UV curing and repair integrated system D919: LED lamp curing and high-voltage mercury lamp curing

2. UV cure liner: from diameter DN200 up to DN1800

3. Hot water cure liner: impregnated liner to invert by water gravity and cure by hot water

4. Pipeline inspection robots crawler D18 and D18s: CCTV video inspection of pipeline defects

5. Pipeline periscope D16S: quickly view the internal defects of the pipeline