Measures for preventing red rust and water leakage in the hot water supply piping of a certain hotel.
Case study of introducing NMR pipe protectors for preventing red rust and extending the lifespan of hotel hot water piping.
At a certain hotel, #IP, the hot water supply piping made of heat-resistant vinyl-lined steel pipes had significant red rust corrosion after 31 years of construction, raising concerns about leaks from the joints. Therefore, a red rust prevention and piping extension device called "NMR Pipe Protector" was installed. Before the installation of the NMR Pipe Protector, a white filter was attached to the hot water faucet, and after running water for six days, the filter turned brown due to red rust generated in the hot water piping, revealing that the captured iron content was 150 mg/l, indicating that red rust corrosion in the piping was quite advanced. One month after the installation of the NMR Pipe Protector, a white filter was attached at the same location and under the same conditions as before, and the captured iron content decreased to 140 mg/l. Two months after installation, the iron content due to red rust further decreased to 17 mg/l, and the red rust in the piping transformed into black rust that does not dissolve in water, demonstrating the rust prevention effect and extension of the hot water piping's lifespan. At hotel #IP, it was verified that if the use of the NMR Pipe Protector continues, all red rust in the air conditioning chilled water piping will change to black rust, and the cost will be less than one-fifth of the piping replacement work, allowing the piping to be extended until the building's lifespan. Naturally, leaks have been completely prevented thereafter.
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【Introduction Overview】 ■Location: Fukushima Prefecture ■Building Overview: 31 years old, 10 stories, 125 rooms ■Installation Date: September 2019 ■Installed Piping/Number of Units: Hot water supply piping on the secondary side of the storage tank (HTLP pipe 50mm)/PT-50DS x 1 unit ■■■■■ Japan System Planning Co., Ltd. ■■■■■ Toll-Free Number: 0120-320-390 <Free Material Request & Inquiries> https://www.jspkk.co.jp/jp/contact/ *For more details, please refer to the PDF document or feel free to contact us.
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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".