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Extend the service life of the building's air conditioning chilled and hot water piping (galvanized steel pipes) by over 40 years!

Introducing a case of preventing leaks and extending the service life by preventing red rust in water supply pipes! The "NMR Pipe Protector" for preventing red rust inside pipes.

In the year 2000, at a major DPE factory that was 35 years old at the time, the pipe lifespan was diagnosed to be 2 months, and our company's 'NMR Pipe Protector' was introduced into the water supply piping. The iron content in the water that had been stagnant overnight was measured at 0.5 mg/L before the introduction, which was unsuitable for water used in DPE. However, just 6 days after the introduction of our product, the iron content in the water decreased to less than 0.05 mg/L, which is one-tenth of the previous level, due to the black rust formation from red rust. Since then, the water quality has further improved, with the iron content in the water dropping below 0.03 mg/L, confirming the effectiveness of rust prevention. As of 2019, this water quality has been maintained. Additionally, no new leaks have occurred since the introduction. [Case Study on Extending the Lifespan of Water Supply Piping] ■ Major DPE Factory in Fuchu City, Tokyo (54 years old as of 2019) *For more details, please refer to the PDF document or feel free to contact us.

  • Renovation and repair methods

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Cooling water piping of a certain wire rod manufacturing plant

Effect verification of red rust turning into black rust.

This factory has only been in operation for 8 years, but due to the influence of bacteria growing inside the pipes, the formation of red rust has progressed significantly, leading to frequent leaks, and the pipes were updated each time. As a countermeasure, we installed the "NMR Pipe Protector." Since then, there have been no occurrences of leaks, and the analysis results of the amount of black rust showed that the percentage of black rust in the rust before installation was 1.9%, which increased to 66.9% after 14 months of installation, proving the blackening of red rust.

  • Piping Equipment

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Cooling water piping for large commercial facilities

Effect verification of red rust turning into black rust.

Due to significant concerns about the corrosion of the cooling water piping, we installed the "NMR Pipe Protector" when the facility was 43 years old as a countermeasure. Analysis of the amount of black rust after installation demonstrated that the "NMR Pipe Protector" effectively prevents the progression of red rust and promotes the formation of black rust. The amount of black rust before installation was 2.0%, but it increased to 48.2% after 10 months of installation, confirming the reduction of red rust to black rust. If we continue to use the "NMR Pipe Protector" in the future, this piping will not require replacement as long as external corrosion does not occur.

  • Water Treatment Plant

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Large office building hot water piping

Effect verification of red rust turning into black rust.

Due to significant concerns about the corrosion of the hot water piping in this facility, an "NMR Pipe Protector" was installed as a countermeasure when the building was 38 years old. Analysis results of the amount of black rust after installation demonstrated that the "NMR Pipe Protector" effectively prevents the progression of red rust and promotes the formation of black rust. The amount of black rust before installation was 0.9%, but it increased to 16.9% after 6 months of actual operation, proving the reduction of red rust to black rust. In the future, if all the red rust in this piping turns into black rust, piping replacement will not be necessary as long as external corrosion does not occur.

  • Piping Equipment

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Commercial facilities within the housing complex Air conditioning chilled and hot water piping

Effect verification of red rust turning into black rust.

This facility has been in operation for 22 years, and significant corrosion has occurred within the piping, leading to the necessity for pipe replacement due to leaks. However, it was impossible to carry out water outage work because it supplies chilled and hot water to four buildings, including commercial facilities within a large-scale complex. As a countermeasure, we installed the pipe rehabilitation device "NMR Pipe Protector." After installation, there have been no occurrences of leaks, and regular mass analysis results of the black rust in the pipes have demonstrated that red rust is being prevented and pipe rehabilitation through black rust formation has been proven. The amount of black rust before the installation of the "NMR Pipe Protector" was 2.2%, which increased to 72.9% after 12 months and 91.7% after 45 months, proving the anti-rust effect within the pipes. If we continue to use the "NMR Pipe Protector" in the future, pipe replacement will not be necessary as long as external corrosion does not occur.

  • Water Treatment

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Certain food factory air conditioning chilled water piping

Effect verification of red rust turning into black rust.

This factory has been in operation for 15 years, and there are significant concerns about corrosion within the piping. As a countermeasure, we installed the "NMR Pipe Protector." After installation, there have been no occurrences of leaks, and the mass spectrometry results of the black rust within the rust indicated that the progression of red rust has been prevented, confirming the rehabilitation of the piping due to the formation of black rust. The amount of black rust within the rust increased from 1.2% before installation to 76.8% after 12 months, and to 90.2% after 23 months, proving the blackening of red rust. If we continue to use the "NMR Pipe Protector" in the future, piping replacement will not be necessary as long as external corrosion does not occur.

  • Water Treatment Plant

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