TRENCHLESS TECHNOLOGIES
Frawner Corporation utilizes a multitude of trenchless techniques for pipeline installation, rehabilitation, replacement, and repair. Trenchless methods can be used to avoid many of the problems associated with open cut methods. Disruption to traffic, residences, business and communities are minimized. Less harm is caused to environmentally sensitive areas and the potential for ground settlement and damage to other existing utilities is reduced. Trenchless methods often improve public safety and schedule duration. The company’s trenchless methods include cured-in-place pipe, sliplining, and pipe bursting, and pneumatic hole piercing.
Cured-in-place piping
CIPP involves inserting a flexible liner inside the existing pipe, inflating the liner, and exposing it to heat or ultraviolet light to dry and harden the liner inside the pipe. The liner essentially forms a smooth surface inside the existing pipe, restoring it to near-new condition.
Pneumatic Hole Piercing
Compressed air is supplied to the mole through a supply hose. The air moves the piston encased in a cylinder (housing). The piston hits the element of the mole’s head called the anvil, and at the same time the air starts pushing the piston backwards, preparing it for the next forward stroke on the head.
Let’s Start
planning!
