With a powerful pipe-making machine and sturdy materials, long-distance pipe production is possible!
The "SW Liner Method" is a pipe rehabilitation method that involves spirally winding rigid PVC strips inside an existing pipe and filling the gap between the existing pipe and the new liner with filling material. This method allows for the repair of aging sewer pipes buried underground without the need to excavate the surrounding roads. In cases of worsening weather or sudden heavy rainfall upstream that causes flooding, the strips can be cut to safely pause the construction. 【Features】 ■ Can be constructed even under service conditions ■ Continuous structure without joints ■ Can be constructed without supports 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.
Inquire About This Product
basic information
【Scope of Application】 ■ Pipe Type: Reinforced Concrete Pipe ■ Pipe Diameter: Φ800mm to Φ1,800mm ■ Construction Length: Up to 240m ※ The construction length is based on the case of pipe manufacturing from one side. ※ The construction length is confirmed at the time of obtaining the construction technology review certification and does not determine the feasibility of construction. ■ Conditions for Water Flow ・ Pipe manufacturing and filling are possible while sewage is flowing. ・ Water level must be 30% or less of the pipe diameter, and flow velocity must be 1.0m/s or less. ■ Construction Technology Review Certification: Obtained the Construction Technology Review Certification No. 2017 "Standard Achievement Type" from the Public Interest Incorporated Foundation Japan Sewerage New Technology Organization. * For more details, please download the PDF or feel free to contact us.
Price range
Delivery Time
Applications/Examples of results
For more details, please download the PDF or feel free to contact us.
catalog（1）
Download All Catalogs
Company information
The SW Liner Method Association proposes the "SW Liner Method," which contributes to durability, speed, safety, and cost reduction. The SW Liner Method can rehabilitate large-diameter pipes with a diameter of 800mm or more without excavation and while in service. Furthermore, it was developed to minimize the risks associated with in-service rehabilitation work, thereby improving work safety.