Osaka Gas Network Co., Ltd.Osaka Gas Network Co., Ltd.
Daigas Group The Osaka Gas Group has taken a new step forward as the Daigas Group.

Maintenance

“Shuttle Lining Construction Method” for Rehabilitation and Repair of Service Pipes

Overview

A lining pig is driven by air pressure through the lining agent injected into the piping. A uniform lining film is formed inside a pipe.

“Shuttle Lining Construction Method” for Rehabilitation and Repair of Service Pipes

Purpose

The shuttle lining construction method forms a lining film of epoxy resin on the inner surface of existing gas piping to prevent leakage from joints and leakage caused by corrosion.This construction method conforms to the evaluation standard of the “rehabilitation and repair construction method,” which is specified in the “guidelines on measures against corrosion of service pipes” and “guidelines on measures for maintenance of district mains” established by the Ministry of Economy, Trade and Industry.B

Features

  • Excavation work in a limited scope can improve the airtightness of existing buried gas piping. This helps reduce construction costs.
  • The construction method can be used for any number of bends.
  • The tool set is compact and can be loaded into a vehicle.
  • The work can be performed by a single operator. It takes about 60 to 75 minutes per location.(Excavation and recovery work are excluded.)

Specifications

“Shuttle Lining Construction Method” for Rehabilitation and Repair of Service Pipes