Royal Garden Hotel, UK - Measures for preventing red rust and water leaks in air conditioning and hot water piping.
Case studies of introducing NMR pipe protectors for preventing red rust and extending the lifespan of hotel air conditioning and hot water piping.
The Royal Garden Hotel London, famous as a five-star hotel in London, was built in 1965 and currently has 400 rooms. Due to the iron pipes in the hotel's hot water circulation system, red water was coming out of the taps every morning. To prevent rust and leaks in the piping and to extend its lifespan, an NMR Pipe Protector was installed. Before the installation of the NMR Pipe Protector, the iron content value due to red rust in the hot water supply during nighttime was very high at 2.79 mg/l. However, 25 days after the installation of the NMR Pipe Protector, it decreased to 0.016 mg/l, and further decreased to 0.013 mg/l 36 days after installation, falling below the water quality standard value of 0.2 mg/l set by the UK Water Supply Act. This reduction was achieved as the existing red rust in the pipes was converted into black rust, which is an insoluble form with a volume 1/10 of the original, thereby demonstrating the anti-corrosion effect and lifespan extension of the air conditioning and hot water piping.
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At the Royal Garden Hotel, a follow-up survey was conducted 14 years after the installation on June 29, 2020, which proved that the iron content due to red rust in the hot water supply pipes was 0.00 mg/l, indicating that all the red rust in the pipes had been reduced to black rust. It has been confirmed that this hot water supply piping will not deteriorate due to red rust in the future, extending the lifespan of the piping to match the lifespan of the building. Additionally, with the installation of the NMR Pipe Protector, the maintenance costs for the piping have reduced to only 5% of the piping replacement costs, allowing the hotel to save over 95% on piping maintenance expenses. ■■■■■ Japan System Planning Co., Ltd. ■■■■■ Toll-Free Number: 0120-320-390 <Free Material Request / Inquiries> https://www.jspkk.co.jp/jp/contact/
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~Extending the lifespan of old piping~ "NMR Pipe Protector" Cumulative installation record surpasses 4,400 buildings! (As of July 2025) Among them, over 3,100 buildings are condominiums. = Domestic Achievements = New Chitose Airport Domestic Terminal, JR Sapporo Station (JR Tower Building), Imperial Theatre Building (Tokyo Marunouchi), Yaesu Exit Hall, Famous Bookstore Building (Shinjuku), Hotel Toyokaku (Kyoto), Hotel Serve Shibuya, Shirakagi Care House (Saitama), Kawanishi Private Kushi Elementary School, Food Processing Factory, Major Automobile Manufacturer Factory (Fukuoka Prefecture), Kumamoto Red Cross Hospital, etc. = International Achievements = Buckingham Palace, London City Hall, British Museum, BBC, Christ's College, University of Cambridge, Royal Bank of Scotland, Harrods Department Store, Royal Garden Hotel London, UK Parliament, etc. ★ Featured in the Media "NMR Pipe Protector" ★ Selected as one of the top 10 rust prevention technologies in the world in 2020 and introduced in a U.S. magazine! Case studies and customer testimonials have been featured in many media outlets, including TV Tokyo's "World Business Satellite (WBS)", TOKYO MX's "Corporate Spirit", and specialized newspapers "Condominium Management News" and "Air Conditioning Times".