Gas supply technologies

This method uses an epoxy resin lining film on the inner surface of gas pipes to prevent joint and corrosion leakage of gas supply pipes and lighting inner-outer tubing.
This method is in compliance with the evaluation criteria of the Rehabilitation Repair Method stipulated in the "Guidelines for Countermeasures Against Corrosion of Internal Pipes" and has a confirmed durability of 40 years or more.
Furthermore, technological advances have extended the scope of application. The method now supports pipes with diameters that could not previously be handled.

・Improves airtightness of existing gas pipes, reducing construction costs.
・The method can also be used simultaneously with main branch pipe replacement, improving construction efficiency.
・Lining work can be done by a single individual, with approximately 60-75 minutes required per pipe.
・The compact size of the road tools allows for co-loading with other tools on the same vehicle.
・Can be used on perpendicular pipes within a distance of 8 m.
・Can be used with buried piping of varying diameters (25x32 A, 32x40 A). (Requires diameter-specific pigs)