Rehabilitation pipes with seismic resistance are possible (Level 1, Level 2 seismic motion).
The "SD Liner Method" is a technique for constructing new rehabilitation pipes inside existing sewer pipes without excavation, specifically for aging sewer systems. There are three types of rehabilitation methods: individual installation of lateral pipes, individual installation of main pipes, and integration of lateral and main pipes. Additionally, there are two construction methods available: the formation method and the inversion method, allowing for the selection of the most suitable method based on site conditions. 【Features】 - The thermosetting resin used is vinyl ester resin, which has excellent chemical resistance. - There are two types of resin-impregnated substrates: - SD Liner II (glass reinforced type): uses acid-resistant glass fibers as the substrate. - SD Liner (standard type): uses non-woven fabric as the substrate. *For more details, please download the PDF or feel free to contact us.
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【Construction Methods】 ■ Formation Method - A construction method that pulls the main pipe rehabilitation material into the main pipe using a winch. ■ Inversion Method - A construction method that inserts the rehabilitation material in reverse, using water pressure for the main pipe and air pressure for the branch pipe. *For more details, please download the PDF or feel free to contact us.
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This construction method involves the non-excavation installation of a new rehabilitation pipe inside an existing deteriorated sewer pipe. - The rehabilitation method allows for three types of construction: standalone installation of the connection pipe, standalone installation of the main pipe, and integration of the connection pipe with the main pipe. - Vinyl ester resin, which has excellent chemical resistance, is used for the thermosetting resin. - There are two types of substrate for resin impregnation: standard non-woven fabric and glass-reinforced type. - The construction methods include the formation method and the inversion method. The optimal method can be selected based on site conditions and other factors. Please feel free to contact us.