Hotel and inn air conditioning piping is protected from red rust and leaks by NMR pipe protectors.
Extend the lifespan of hotel and inn air conditioning piping affected by red rust deterioration for over 30 years at one-tenth the cost of piping replacement.
"Red Rust Deterioration of Air Conditioning Chilled and Hot Water Piping" Air conditioning chilled and hot water piping that has been in use for over 25 years experiences the loss of the zinc coating on the inner surface of the steel pipes within 4 to 5 years. As the surface of the iron comes into contact with water, red rust deterioration occurs, leading to red rust blockage. At the same time, this red rust flows into copper fan coils, causing further blockage and reducing the efficiency of heating and cooling. Additionally, the accumulation of red rust within the heat source equipment shortens its lifespan. As the red rust deterioration progresses within the piping, the threads at the joints may break off, leading to water leaks during strong earthquakes. Since the air conditioning chilled and hot water system is centralized, updating the piping requires hotels and inns to suspend operations for more than six months, and the cost of piping replacement can be several hundred million to over a billion yen. The damages incurred from the suspension of operations are also significant, leading to a demand for the development of technologies that can extend the life of air conditioning piping without replacement.
basic information
"Unnecessary replacement of air conditioning chilled and hot water piping" Iron oxidizes and forms red rust due to dissolved oxygen and water molecules in water. However, when electrons are supplied to the red rust, the water molecules and oxygen contained in the red rust are separated from it, transforming into a very hard black crystal that is one-tenth the volume of the red rust. Because it is black, it is called black rust, and due to its magnetic properties, it is scientifically referred to as magnetite. This black rust belongs to the same passive state as gold, so if all the red rust in the piping is converted to black rust, the piping will no longer deteriorate from red rust on the inside, and by properly preventing external corrosion with paint or similar materials, it can extend the lifespan of the building. Comparison of hotel air conditioning chilled and hot water piping replacement costs and NMR pipe protector costs https://www.ipros.jp/catalog/detail/585068?hub=60+111519 Patents and academic papers obtained in Japan and the United States 2003 13th Asia-Pacific International Conference on Anti-Corrosion Japan Society for Corrosion Control 2005 "Corrosion Management" https://www.jspkk.co.jp/jp/products/support/evidence/
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Applications/Examples of results
Results of the implementation effect test at the Marriott Hotel in the UK https://www.jspkk.co.jp/jp/results/detail/uk/bournemouth/ Results of the implementation effect test at the Royal Garden Hotel in the UK Recommendation letter for the NMR Pipe Protector from the Royal Garden Hotel in the UK https://www.jspkk.co.jp/jp/results/detail/uk/royalgarden/ Results of the implementation effect test at the Mandarin Oriental Hotel in the UK https://www.jspkk.co.jp/jp/results/detail/uk/mandarin/ Results of the implementation effect test at the Millennium Hotel London in the UK https://www.jspkk.co.jp/jp/results/detail/uk/millennium/ Results of the implementation effect test at the Holiday Inn Hotel in the UK https://www.jspkk.co.jp/jp/results/detail/uk/heathrown/
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An article about the NMR Pipe Protector has been published in the June issue of the specialized piping technology magazine "Monthly Piping Technology."
An article about the NMR Pipe Protector has been published in the piping specialty technical magazine "Piping Technology." In the June issue of "Monthly Piping Technology," a technical article on the NMR Pipe Protector, including its technology and achievements, has been featured. This magazine serves as a technical information source for plant engineers in fields such as petroleum, chemicals, power generation, and various manufacturing, and has a history dating back to its founding in 1959. It is published by Nippon Industrial Publishers, a highly trusted publisher that primarily handles technical magazines in mechanical and electrical engineering, architecture, and more. Publication location: Pages 65 to 68 (4 pages) Media information: - Target audience: Equipment personnel from government agencies and local governments, university and research institution staff, and responsible individuals and engineers in the fields of petroleum, chemicals, power generation (thermal, hydro, nuclear), pharmaceuticals, and various manufacturing. Publisher: Nippon Industrial Publishers (Founded "Monthly Piping Technology": 1959)
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Our article has been published on the electronic publishing platform "MEDIUM"!
An article from our company has been published on the electronic publishing platform "Medium"! Excerpt from "Everything You Need to Know About the Red Rust Prevention Device 'NMR Pipe Protector'" 1) Common water supply pipes in buildings such as apartments deteriorate over time due to red rust, making the red rust prevention device "NMR Pipe Protector" necessary. All buildings, including apartments, hospitals, hotels, and schools, have plumbing for baths, sinks, kitchens, and laundry. The piping material is generally a steel pipe with a vinyl lining (abbreviated as VLP), which has a layer of polyvinyl chloride on the inside, preventing the iron from coming into direct contact with water and thus preventing the occurrence of red rust. However, while there is no red rust in the straight sections of the pipes, red rust can occur at the joints between pipes, at the connections with copper alloy valves, and at the elbow joints made of copper alloy used to bend the pipes at right angles, as these areas come into contact with water. The joints where the piping connects with various components are fastened with screws, and since the threads are on the iron side, they gradually deteriorate due to red rust, leading to a reduction in the number of remaining threads by about half after approximately 20 years. For more details, please see the related links below.
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Cosmo Kajigaya Le Seine Mansion Water Supply Pipe Effect Verification of Red Rust to Black Rust Conversion
In Cosmo Kajigaya Le Seine, in 2000, 14 years after its construction, a piping rehabilitation device called "NMR Pipe Protector" was installed to prevent the deterioration of the water supply pipes due to red rust. After conducting a pipe inspection in the 10th year after installation, it was confirmed that the transformation of red rust to black rust had occurred and that the progression of red rust deterioration had completely stopped. Now, 20 years after the installation of the NMR Pipe Protector, and 34 years after construction, there are no issues with red rust in the water supply pipes, and the condition remains excellent.
