Millennium Hotel in the UK resolves issues of red rust and water leakage in the air conditioning hot and cold water piping.

Case study of the introduction of NMR pipe protectors for preventing red rust and extending the life of hotel water supply piping.

The Millennium Hotel London Mayfair is a historic building located in the heart of London, overlooking Grosvenor Square, which was once the residence of the Duchess of Kendal in the 18th century. To address the issues of red rust and leakage in the air conditioning hot water piping, the "NMR Pipe Protector," a rust prevention and pipe longevity device that does not require pipe removal or water shutdown during installation, was installed. Before the installation of the NMR Pipe Protector, the iron content due to red rust in the air conditioning hot water piping was very high at 15.7 mg/l, indicating significant deterioration from red rust and raising concerns about leakage. To prevent this red rust and leakage, the "NMR Pipe Protector" was introduced. Six weeks after the installation of the NMR Pipe Protector, the test results for the air conditioning hot water showed a significant reduction in iron content to 0.157 mg/l, completely preventing new red rust in the air conditioning cold and hot water piping, and it was proven that the existing red rust had transformed into black rust, which is insoluble in water and has a volume one-tenth that of red rust. If the NMR Pipe Protector continues to be used, all red rust in the piping will transform into black rust, preventing external corrosion and leakage, thereby extending the lifespan of the building.

Water treatment equipment