Small diameter in-place pipe restoration What should contractors be looking for to consider the use of this technology?

摘要

The past several decades have seen dramatic improvements and growing acceptance, nationally and internationally, in the arena of in-place pipe restoration that uses a "blown-through method." This particular type of process does not insert liners into the pipe, but rather a barrier coating is blown into the piping system to coat the pipe's interior. The focus is not on large-diameter waste lines, but on small-diameter pressurized pipes, such as water pipes, fire sprinkler systems and natural gas lines. In the case of water pipes, pipes as small as 1/2-inch diameter that run from a water main into and through a building's piping system can be restored in-place without the need for extensive excavation and tearing into the fabric of the building.