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  6. Verification of the effectiveness of NMR pipe protectors by the Yokohama City Waterworks Bureau.

Verification of the effectiveness of NMR pipe protectors by the Yokohama City Waterworks Bureau.

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last updated:Aug 22, 2025

日本システム企画 東京本社 
日本システム企画 東京本社 
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Confirmed the rust prevention effect inside the piping in areas where the NMR pipe protector's rust prevention effect conditions are met.

To demonstrate the rust prevention effect of the NMR pipe protector, a certain amount of water must flow through the piping. In the Konan Chuo area where the rust prevention effect test was conducted, the minimum water usage for a 50A pipe was 4.4 tons per day, but only three households were using that water, resulting in a total water usage of 1 ton per day (an average of 350 liters per day per household), which is very low. In the Teramachi 2-chome area, the number of households using water for each branched pipe with a diameter of 50A was six and eight, respectively, with the six households using about 2 tons of water per day and the eight households having a total water usage of just under 3 tons per day. Due to insufficient water usage, a clear rust prevention effect could not be confirmed. However, in the Tsurumi Public Housing and Hazawa area, where similar verification tests were conducted, the conditions were met. In Tsurumi Public Housing, the red rust in the water supply pipe decreased from 0.27 mg/l to 0.12 mg/l six weeks after the installation of the NMR pipe protector, and an increase in residual chlorine concentration, which had been reduced due to red rust, was confirmed. In the Hazawa area, the residual chlorine concentration, which had decreased by 45.3%, improved significantly to a reduction of 13.6%. The Yokohama City Waterworks Bureau has concluded the tests as there are no more suitable locations to further test the rust prevention effect of the NMR pipe protector.

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Verification of the effectiveness of NMR pipe protectors by the Yokohama City Waterworks Bureau.

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  • Test results of NMR pipe protectors at Yokohama City Waterworks Bureau.
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The Yokohama City Waterworks Bureau conducted the following three tests: "Verification of rust prevention in the water supply pipes at the Tsurumi Public Office using the NMR Pipe Protector and prevention of chlorine concentration reduction for disinfection," and "Verification of prevention of chlorine concentration reduction for disinfection due to rust in the main water supply pipes using the NMR Pipe Protector." Materials can also be downloaded from the catalog below.

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Cumulative results of piping extension exceed 4,200 buildings!

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NMR Pipe Protector, Hazawa Town, Verification of Residual Chlorine Reduction in Water Supply Main

NMR Pipe Protector, Hazawa Town, Verification of Residual Chlorine Reduction in Water Supply Main

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NMR Pipe Protector Tsurumi Public Housing Verification of Prevention of Red Rust in Water Supply Pipes and Reduction of Chlorine Concentration for Sterilization

NMR Pipe Protector Tsurumi Public Housing Verification of Prevention of Red Rust in Water Supply Pipes and Reduction of Chlorine Concentration for Sterilization

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"Methods for Reducing Repair Costs of Hotel Air Conditioning Ducts" was published in the June 25, 2021 issue of "HOTERES" (Weekly Hotel Restaurant)!

"Methods for Reducing Repair Costs of Hotel Air Conditioning Ducts" was published in the June 25, 2021 issue of "HOTERES" (Weekly Hotel Restaurant)!

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The method for reducing the repair costs of apartment water pipes was published in the April 11, 2021 issue of Sunday Mainichi!

The method for reducing the repair costs of apartment water pipes was published in the April 11, 2021 issue of Sunday Mainichi!

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Research presentation on NMR pipe protectors at the "WCP2018 KYOTO 18th International Conference on Pharmacology and Clinical Pharmacology" held in Kyoto.

Research presentation on NMR pipe protectors at the "WCP2018 KYOTO 18th International Conference on Pharmacology and Clinical Pharmacology" held in Kyoto.

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Research presentation on NMR pipe protectors at the "WCP2018 KYOTO 18th International Congress of Pharmacology and Clinical Pharmacology" held in Kyoto, Japanese version.

Research presentation on NMR pipe protectors at the "WCP2018 KYOTO 18th International Congress of Pharmacology and Clinical Pharmacology" held in Kyoto, Japanese version.

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Research presentation at the 16th Annual Meeting of the World Clinical Pharmacology Society "World Pharma 2010" held in Denmark.

Research presentation at the 16th Annual Meeting of the World Clinical Pharmacology Society "World Pharma 2010" held in Denmark.

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Research presentation at the 16th World Congress of Clinical Pharmacology held in Denmark, "World Pharma 2010" - Japanese translation version.

Research presentation at the 16th World Congress of Clinical Pharmacology held in Denmark, "World Pharma 2010" - Japanese translation version.

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Tokyo University of Science Noda Campus, also adopted by the Japanese Red Cross Hiroo Medical Center! Featured in the Fall 2009 issue of "Educational Facilities."

Tokyo University of Science Noda Campus, also adopted by the Japanese Red Cross Hiroo Medical Center! Featured in the Fall 2009 issue of "Educational Facilities."

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Effect verification of black rust due to red rust in the water supply pipe of Coop Nomura Minami Ishikiri condominium.

Effect verification of black rust due to red rust in the water supply pipe of Coop Nomura Minami Ishikiri condominium.

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September 25, 2021, published in "Mansion Management News" - Case study of the introduction at Lions Mansion Koshigaya North.

September 25, 2021, published in "Mansion Management News" - Case study of the introduction at Lions Mansion Koshigaya North.

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News about this product(3)

An article about the NMR Pipe Protector has been published in the June issue of the specialized piping technology magazine "Monthly Piping Technology."

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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"!

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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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Japan's largest corporate interview community "Inta Tour"

The content of an interview with our company conducted by students was featured in the "Intour" program!

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The largest corporate interview community in Japan, "Intetour," has featured interview content conducted by students with our company. Two students, one in their second year at Rikkyo University and another in their fourth year at Doshisha University, interviewed our representative director and president. The site also introduces the appeal of our company as perceived by the students. Excerpt from a comment by a second-year student at Rikkyo University: "About the appeal of the company" Today, we spoke with Japan System Planning Co., Ltd. One of the company's appeals is that, unlike other companies, it focuses on means to achieve its objectives rather than on profit. In particular, they are engaged in activities that consider energy and environmental creation, specializing in the piping maintenance business with their "NMR Pipe Protector." They mentioned that their corporate activities are a form of social contribution. Additionally, they believe that individuals who understand and seek to utilize their own strengths are well-suited for the company. For more details, please visit the official site. https://intetour.jp/intetour_corp/jspkk?type=visicomi

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日本システム企画

日本システム企画 東京本社 

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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".

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