Denso Steelcoat 200™ System Protects Power Station Steam Turbine Pipeline
Exposed Surface Coatings
|South Hedland Power Station
|Denso Steelcoat 200™ System
South Hedland power station is a 150MW combined-cycle natural gas-fired power generation facility constructed in the Boodarie Resource Industrial Estate, approximately 13km south of Port Hedland, Western Australia. The project aims to meet the growing demand for electricity in the Pilbara region.
Construction of the power station began in February 2015 and was completed in 2017 with a cost estimation of AU$570m. Combined cycle power plants are highly efficient and feature both natural gas and steam turbines, with the steam turbine using waste heat from the gas turbine to generate
The underground pipeline for the steam turbines operate at elevated temperatures that standard anti-corrosion tape wrap systems are unable to tolerate long term. Denso Australia was successful in supplying the specified Denso Steelcoat 200™ System, which is designed to withstand 110°C above ground and 90°C below ground.
Prior to the Denso Steelcoat 200 application, the piping spools were first hot dipped galvanised by Hartway Galvanisers and placed on pipe-stands ready for protective wrapping. The Denso Hotline™ Tape was applied spirally with a 55% overlap, effectively providing a 3000 micron corrosion barrier followed by the water activated Denso Glass Outerwrap™ Tape also incorporating a 55% overlap. On completion of the application the spools were loaded onto trucks for the 1745km journey to site. The Denso Glass Outerwrap served a dual purpose of protecting the spools during transport and tolerating the high operating service temperatures of the pipe once commissioned. The Denso Steelcoat 200 System is designed to provide 20+ years’ operating service.