SW liner method

Safer and faster! Renewing and strengthening Japan's underground with new technology.

The "SW Liner Method" is a pipe rehabilitation method that involves winding a rigid polyvinyl chloride strip in a spiral manner inside an existing pipe to create a new pipe, and filling the gap between the new and existing pipes with a filler material, thereby rehabilitating the pipe as a composite structure. Since it can be constructed without stopping the water supply (the water flowing through the pipeline), there is no need for water replacement work. The adhesive is automatically supplied simultaneously with the pipe manufacturing process. This allows for the application of adhesive at the joint sections, forming a highly watertight integrated rehabilitation pipe. 【Features】 ■ Construction is possible even under water supply conditions ■ Continuous structure without joints ■ Can be constructed without support structures as a countermeasure against buoyancy during filling ■ Pipe manufacturing using a powerful push-type method *For more details, please download the PDF or feel free to contact us.

Renovation and repair methods