Installation

Step 1: TV inspection and pipe cleaning
The existing pipe is first cleaned and televised. Protruding service connections are removed; partially collapsed sections are then repaired and all debris in the pipe is removed and disposed of properly. A detailed video of the pipe’s condition is produced.
Step 2: EX Pipe installation in the host pipe
The EX Pipe contained in the pipe warmer trailer is preheated to soften the PVC material. Once softened, the EX Pipe is winched through the existing manhole into the pipe to be reconstructed. Winching continues until the EX Pipe reaches the next designated manhole.
Step 3: EX Pipe expansion and shaping
After the EX Pipe is winched into the existing pipeline, steam and pressure are applied to expand the PVC tightly against the host pipe. Steam is then replaced by air, while maintaining a constant pressure, and the PVC is cooled. The PVC is trimmed at each pipe end and excess material is removed from the manhole.
Step 4: Service connection reinstatement
After the cooling of the PVC pipe, the house service connections are reopened, using a specially designed robotic cutting device and a closed circuit television camera. The EX Pipe installation is then complete – having taken only hours, not days, and accomplished without excavation. The new pipe is now ready for use.