HOME > Case Study > By environment > High temperature and corrosion > Life span extension of a chlorine gas

Life span extension of a chlorine gas

Project Life span extension of a chlorine gas
Target High temperature & corrosion piping inner surface corrosion
Photo description

Inner coating completed

Inspection of flange surface after coating is completed

Before coating

Customers and industries
Chemical Industry
Target equipment
200℃ hydrochloric acid gas (hydrogen chloride) piping
Target Item
Φ500 × L5600 2 new pipes
Coating period
October 2019
Scope of work
Pipes inner surface, inspection and flange surface forming
Materials used
Corrothane XT
Coating process
■ Grit blast to Sa2-1 / 2 (equivalent to SSPC SP10)
■ Coating the edge surface
■ Coating: Spray & hand coat
■ Fitting surface
■ Completion inspection: film thickness, pinhole and visual inspection
Merits of this application
■ Adopted after the good results of the test piece in a high temperature and high corrosion environment.
■ Operating temperature of this pipe is 200°C, and since it has a chlorine gas, a coating material with excellent heat resistance and chemical resistance is required.
■ Features of Corrothane XT
・ According to product specifications, it has a heat resistance of 160℃ in a liquid environment and 260℃ in gas environment.
・ It can be used at full pH (pH 0-14).
・ It has been widely adopted as a countermeasure in high temperature and high corrosion environments.
■ Coating measures were established in a highly corroded environment.
■ Measures by coating in a highly corroded environment have become standard.
Corrocoat Japan credentials etc
■ Corrocoat coating in a highly corroded environment has become established.