[NMR Pipe Protector Verification Results] Cambridge University Hospital

Completely prevent new red rust inside the piping! A case where it became possible to use until the building's lifespan by preventing external corrosion!

The hot water supply piping at the Cambridge University Hospital uses galvanized steel pipes (SGP) as the piping material, and the piping was updated three years ago. However, due to bacterial corrosion, red water and leaks occurred. To prevent red rust corrosion in this piping, "NMR Pipe Protectors" were installed. Before the installation of this product, the iron content in the hot water supply piping was high at 1.07 mg/l, and discoloration was observed. However, 11 days after installation, the iron content in the hot water decreased to 0.188 mg/l, and the red water was completely resolved. [Introduction Overview] ■ Hospital Name: Cambridge University Hospital (Addenbrooke's) ■ Hospital Location: Hills Road, Cambridge, UK ■ Hospital Overview: 28 years old (3 years since piping update), 5 stories (over 1000 beds) ■ Installation Date: February 16, 2004 ■ Installed Piping/Number of Units - Secondary hot water supply piping from the storage tank (SGP pipe 65mm) / PT-75DS x 2 units - Water supply piping for the 3rd floor system (SGP pipe 32mm) / PT-30DS x 1 unit *For more details, please refer to the PDF document or feel free to contact us.

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【Effects After Installation】 ■66 days after installation, the iron content in the water decreased to 0.11 mg/l, completely preventing new red rust in the piping, and it was proven that the existing red rust transformed into black rust, which is insoluble in water and has a volume 1/10 of the original. ■The rust prevention effect is sustained, with the iron content in the water below the measurement limit, and there has been no occurrence of leaks for 17 years. *For more details, please refer to the PDF document or feel free to contact us.