The red rust inside the water supply pipe has transformed into hard crystalline black rust with a volume reduction of 1/10! The rehabilitation of the piping due to the black rust formation from red rust has been confirmed!
This nursing facility had experienced significant deterioration due to red rust in the water supply and hot water supply pipes. Therefore, when the building was 25 years old, a red rust prevention device called the "NMR Pipe Protector" was installed in the water supply pipe on the secondary side of the rooftop water tank and in the hot water supply pipe on the secondary side of the boiler. Before the installation of the NMR Pipe Protector, the iron ion concentration in the water supply was 2.27 mg/l, and the color degree was 20, indicating severe deterioration due to red rust in the pipes. Four weeks after the installation of the NMR Pipe Protector, the iron ion concentration in the water dropped to 0.46 mg/l, and the color degree improved to 5, showing a significant improvement in water quality. Furthermore, the water quality test results 12 weeks after installation showed that the iron ion concentration was 0.03 mg/l, and the color degree was less than 0.5. The red rust in the water supply pipe had transformed into hard crystalline black rust with a volume reduction of 1/10, stopping the leaching of red rust into the water. The rehabilitation of the pipes due to the black rust formation was confirmed. This demonstrated that if the use of the NMR Pipe Protector continues, both the water supply and hot water supply pipes can be extended to the lifespan of the building.
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【Installation Overview】 ■Location of Care Facility: Tochigi Prefecture ■Building Overview of Care Facility: 25 years old, 2 stories, long-term care facility (completed in 1980) ■Water Supply Method: Elevated Water Tank System ■Installation Date: October 5, 2004 ■Installation Piping/Number of Units ・Secondary Water Supply Piping from Elevated Water Tank (SGP Pipe 80mm)/PT-75DS×1 unit ・Secondary Hot Water Supply Piping from Boiler (SGP Pipe 65mm)/PT-75DS×1 unit 【Effects After Installation】 ■Water quality test results 12 weeks after installation showed iron ion levels in the water at 0.03mg/l and color at less than 0.5 degrees ■The red rust inside the water supply pipes changed to hard crystalline black rust with a volume reduction of 1/10, stopping the leaching of red rust into the water, confirming the rehabilitation of the piping due to the black rust formation ■It has been proven that continuing to use this product can extend the lifespan of both the water supply and hot water pipes until the building's lifespan *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".