Lateral Pipe Lining

Construction Points

As the construction order, basically, after rehabilitating the lateral pipe, the main pipe is rehabilitated, and the main pipe and lateral pipe are integrated to adopt a system that pursues water tightness.
S-collar (stainless steel collar) lateral pipe rehabilitation material protects the lateral pipe opening, so work with the drilling machine can be ensured, and the intergrated lining of the main pipe and branch pipe stops the water at the pipe oprning with a packing liner. The exuded water can be completely shut out.
The lateral pipe without a box can also be lined from the main pipe.
With the after-lining system, it is integrated even if the lateral pipe is lined after the main lining.
In the rehabilitation of lateral pipes, a system has been developed and implemented to carry out all rehabilitation work from the main pipe side even if there is no facility such as "Masu".

In addition, construction of any length from the main side of the lateral pipe is also carried out.
As an application of lateral pipe rehabilitation technology, the auxiliary pipe can also be integrated with the main pipe.
Applicable to all types of pipes (Hume pipes, Ceramic pipes, Steel pipes, Iron pipes, PVC pipes) and pipe diameters.
Pipe diameter: 4” to 8” Plate thickness: 0.09” to 0.24”

Outline of Construction Method

Preparatory Work:

Set the SGICP lateral pipe lining material on the in-pipe work robot, move it inside the main pipe, and press the end of the SGICP lateral pipe lining material against the lateral pipe opening.

Inverted Insertion:

By applying a fluid pressure (hydraulic or pneumatic) to SGICP lateral pipe liner, reversed insertion into the lateral pipe.

Hot Water Injection / Hardening:

After inversion completion, pressurized air pressure to SGICP lateral pipe lining material to cure the SGICP lateral pipe lining material by injecting hot water inside. After curing, disconnecting the SGICP lateral pipe liner and the pressure bag.

Finish:

Inspect and confirm the inside of the lined lateral pipe with a TV camera, and finish.

Lining Material for SGICP Lateral Pipe

Since the branch pipe lining material is covered on both sides with a plastic film, it can barrier the ingress of water and grease attack, cure the lining material, and obtain a high-quality cured product. And higher water tightness can be obtained by the integrated construction with the lining material.