An expansion joint in an Power Plant Economizer inlet duct rated at750 degree F was in need of replacement. This duct was located upover 70 ft up in the air and safe access was required. The plan wasto remove and replace the fabric belt and damaged flow linershield. Helfrich Brothers was able to supply all 3 services under oneturnkey contract.
The new fabric expansion joint was designed & fabricated out of HB -500 series material attached to fiberglass reinforced cloth over high temperature insulation in our 95,000 SF facility in Lawrence, MA.
Plant Services erected a scaffold of a platform to safely access the expansion joint on all 4 sides for removal and replacement, and also removed and replaced lagging and insulation that surrounded the expansion joint.
Field Service group removed existing fabric joint, and replaced it with a new high temperature insulation pillow andthe fabric expansion joints fabricated in our shop. A partialmetal flow liner was replaced in worn out area.The project occurred during a normal spring outage in2021.
Expansion joint replacement can be simple and costeffective if you can provide all the services needed toget the job done:
“Having Helfrich Brothers coordinate and manage the entire project made this a success.”