19 months after installation, all red rust has turned to black rust! The air conditioning hot and cold water pipes can be used as long as the building remains standing.
The air conditioning chilled and hot water piping installed throughout the famous bookstore building in Shinjuku was at risk of deterioration due to red rust. In 2005, 41 years after its construction, a "NMR Pipe Protector" was installed on a 200A diameter pipe before the heat source pump to prevent the deterioration of red rust in the piping and convert it to black rust, thereby extending the lifespan of the piping to match the lifespan of the building. In April 2007, 19 months after installation, a branch pipe with a diameter of 32A from the air conditioning chilled and hot water piping was removed to check the condition of the red rust inside the piping, and it was found that all the red rust had converted to black rust. 【Overview of Installation】 ■ Location: Shinjuku, Tokyo ■ Year of Completion: 1964 ■ Pipe Material: Galvanized Steel Pipe ■ Air Conditioning Method: Central System (Warm Water Piping) ■ Installation Work: 2005 *For more details, please refer to the PDF document or feel free to contact us.
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【Effects After Installation】 ■19 Months After Installation - All red rust has turned to black rust, and there was no red rust in the piping. ■15 Years After Installation - When sampling the chilled and hot water from the air conditioning system, there was no red rust at all, and the water was clear, confirming that no red rust had developed in the piping. *For more details, please refer to the PDF document or feel free to contact us.
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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".