The progression of new red rust inside the piping has completely stopped! The durability of the red rust prevention effect has been demonstrated.
At Hospital #K, which was built 30 years ago, deterioration due to red rust in the air conditioning chilled and warm water piping using galvanized steel pipes (SGP) has progressed. To prevent leakage, a red rust prevention piping extension device called "NMR Pipe Protector" was installed. Before installation, a sample of the circulating air conditioning chilled and warm water was taken, revealing that the total iron content in the water was 3.6 mg/l, indicating significant red rust corrosion within the piping. Ten years after installation, effectiveness verification through sampling and analysis by an external organization showed that the iron content remained at a favorable level of 0.2 mg/l, demonstrating the sustainability of the red rust prevention effect provided by the product. 【Introduction Overview】 ■ Hospital Location: Edogawa Ward, Tokyo ■ Hospital Overview: 31 years old, 4 stories, 144 beds ■ Installation Date: December 2020 ■ Installed Piping/Number of Installations ・Secondary side chilled and warm water (supply) main line of air conditioning generator (SGP pipe 150mm)/PT-150DS×1 unit ■ Effect Measurement Method: Effect verification through sampling *For more details, please refer to the PDF document or feel free to contact us.
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【Effects After Installation】 ■ Two weeks after installation, the total iron concentration in the chilled and hot water was measured at 2.0 mg/l, showing a decrease, and four weeks after installation, the total iron concentration further decreased to 0.2 mg/l. ■ The progression of new red rust within the piping has completely stopped, and the previously occurring red rust has transformed into insoluble black rust, which is one-tenth the volume of the original rust. *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".