Burst lining process

Burst lining

The burst lining process is an environmentally friendly method for the trenchless replacement of pipelines in existing channels.

The old pipe is burst using a bursting head, and the fragments are forced into the surrounding substrate. At the same time, the hollow channel left by the old pipe is enlarged so that a pipe of the same size or larger can immediately be inserted.

Burst lining is particularly well-suited to old pipes made from brittle materials such as asbestos cement, vitrified clay or grey cast iron.

Pipes made from steel or ductile cast iron can also be burst using the burst lining process, with the help of special cutting heads. The new pipe may be the same size as the old pipe or larger, depending on the size of the widening head used. The nominal pipe size can be increased by up to two sizes.