Prevention Device Product List and Ranking from 44 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Sep 17, 2025~Oct 14, 2025
This ranking is based on the number of page views on our site.

Prevention Device Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Sep 17, 2025~Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. エスイー Tokyo//Other construction industries
  2. 藤井電工 Hyogo//Building materials, supplies and fixtures manufacturers
  3. 近畿電機 Aichi//others
  4. 4 ティー・アイ・トレーディング Tokyo//Trading company/Wholesale
  5. 5 東和サプライ 本社 Tokyo//Other construction industries

Prevention Device Product ranking

Last Updated: Aggregation Period:Sep 17, 2025~Oct 14, 2025
This ranking is based on the number of page views on our site.

  1. Permanent fall prevention device (for lifting/moving horizontally) 藤井電工
  2. Rotary bird deterrent device 近畿電機
  3. Manhole and confined space fall prevention and rescue system. ティー・アイ・トレーディング
  4. 4 Cable Drop Prevention Device "Gripper" 東和サプライ 本社
  5. 5 Tactile anti-reverse device "Wedge Hump" 大成ロテック

Prevention Device Product List

16~30 item / All 223 items

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It has also been adopted by City, University of London!

Extending the lifespan of piping! Case study of the "NMR Pipe Protector" at City, University of London.

City, University of London is one of the famous universities located in North London, and it uses SGP for its air conditioning hot water piping. The piping in buildings over 40 years old was experiencing red rust corrosion. To completely protect the piping from red rust corrosion, NMR pipe protectors were installed. Before installation, the iron content in the water due to red rust was 3.407 mg/l, but two weeks after installation, the iron content decreased to 0.084 mg/l. This demonstrated that the NMR pipe protectors prevented the occurrence of new red rust in the piping and reduced existing red rust to inert black rust. With the conversion of red rust to black rust, the piping was completely protected from red rust corrosion, allowing the air conditioning hot water piping to be usable for over 40 years. ▼For more details, please see the related link▼

  • Water Treatment

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It was featured on TV Tokyo's "WBS"! Also adopted by Buckingham Palace!

Reduce costs to less than one-tenth! Prevent deterioration from red rust inside pipes and extend the lifespan of pipes for over 40 years! Red rust prevention device for pipes 'NMR Pipe Protector'

Prevention of red rust deterioration in water supply pipes, air conditioning pipes, and cold and hot water piping. It has been adopted in over 4,300 buildings, including Buckingham Palace and Kumamoto Japanese Red Cross Hospital! <Recommended Points> ★ Significant cost reduction (over 90% reduction in piping renewal costs) ★ No need to cut pipes ★ No need for facility shutdown without water outage work ★ Excellent safety as the equipment does not come into direct contact with water Especially recommended for facilities that cannot stop operations, such as hospitals, hotels, and shopping centers! * Free PDF materials available, including cost comparison charts and customer testimonials! * Please feel free to contact us first.

  • Piping Equipment

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Prevention of red rust and water leakage in the hot water piping of the Mandarin Oriental Hotel in the UK.

Case study of introducing NMR pipe protectors for preventing red rust and extending the lifespan of hotel hot water piping.

The Mandarin Oriental Hotel is an elegant five-star hotel located in London. Due to the occurrence of red rust corrosion issues and concerns about leaks in the hot water supply piping (SGP) of the Mandarin Oriental Hotel, two units of the red rust prevention and leak prevention device "NMR Pipe Protector" PT-75DS were installed at the header section of the circulating hot water piping. Before the installation of the NMR Pipe Protector, the iron content in the water within the hot water piping was 13.35 mg/l, indicating significant progression of red rust corrosion. Four weeks after installation, the iron content in the hot water within the piping decreased to 0.0043 mg/l, and further decreased to less than 0.004 mg/l five weeks after installation. This demonstrated that the progression of red rust within the hot water piping was completely halted by the NMR Pipe Protector, and the existing red rust transformed into insoluble black rust in a volume reduced to one-tenth. It has been verified that if the Mandarin Oriental Hotel continues to use the NMR Pipe Protector, all red rust in the hot water piping will change to black rust, and the cost will be less than one-fifth of the cost of pipe replacement work, allowing the piping to be extended for the lifespan of the building. Naturally, leaks will be completely prevented thereafter.

  • Water Treatment

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Solving the red rust and leakage issues in the water supply and hot water piping at the Marriott Hotel in the UK.

Case studies of introducing NMR pipe protectors for preventing red rust and extending the lifespan of hotel water supply and hot water piping.

The Bournemouth Highcliff Marriott Hotel, part of the world's largest five-star hotel chain, the Marriott Group, was built in 1878 and has 160 rooms. Due to the use of galvanized steel pipes for hot water and water supply plumbing, very high iron levels were detected before the installation of the NMR pipe protector, with 6 mg/l from the hot water pipes and 3.46 mg/l from the water supply pipes. The deterioration of red rust in the pipes, including red water, was serious, raising concerns about future leaks. To eliminate red water from the water supply and hot water pipes, prevent red rust deterioration, and extend the life of the plumbing, NMR pipe protectors were installed in both the water supply and hot water pipes. Thirteen days after installation, the hot water and water supply samples taken first thing in the morning (stagnant water from overnight) were both clear, and the iron levels in the water had dropped to 0.007 mg/l, completely eliminating red water. The reduction in iron levels prevented the formation of new red rust, and it was demonstrated that the existing red rust in the pipes had transformed into a non-soluble volume of 1/10 of inert black rust. As a result, the formation of new red rust in the pipes was prevented, and the transformation of existing red rust into black rust confirmed the effectiveness of the NMR pipe protector in preventing red rust and extending the life of the plumbing.

  • Water Treatment

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Solving the red rust and leakage issues of the air conditioning hot and cold water piping at the Millennium Hotel in the UK.

Case study of introducing NMR pipe protectors for preventing red rust and extending the lifespan of hotel water supply piping.

The Millennium Hotel London Mayfair is a historic building located in the heart of London, overlooking Grosvenor Square, which was once the residence of the Duchess of Kendal in the 18th century. To address issues of red rust and leakage in the air conditioning hot water piping, the "NMR Pipe Protector," a rust prevention and pipe longevity device that does not require pipe removal or water shutdown during installation, was installed. Before the installation of the NMR Pipe Protector, the iron content in the air conditioning hot water piping due to red rust was very high at 15.7 mg/l, indicating significant red rust deterioration and concerns about leakage. To prevent this red rust and leakage, the "NMR Pipe Protector" was introduced. Six weeks after the installation of the NMR Pipe Protector, the test results of the air conditioning hot water showed that the iron content in the water had significantly decreased to 0.157 mg/l, completely preventing new red rust in the air conditioning hot and cold water piping, and it was proven that the existing red rust had transformed into black rust, which is insoluble in water and has a volume one-tenth that of red rust. If the NMR Pipe Protector continues to be used, it has been demonstrated that all red rust in the piping will transform into black rust, preventing external corrosion and leakage, thereby extending the lifespan of the building.

  • Water Treatment

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[NMR Pipe Protector Verification Results] Fenchurch Building

Nine days after installation, the iron concentration dramatically decreased to 0.5 mg/l! A proven case of pipe rehabilitation through the black rusting of red rust.

The hot water supply piping in this office building uses galvanized steel pipes (SGP pipes) as the piping material, and serious red water due to corrosion deterioration occurred throughout the building. According to water quality tests, the iron content in the hot water supply in the early morning was high at 5.2 mg/l, so a "NMR Pipe Protector" was installed to prevent red rust and extend the life of the hot water supply piping. In the water quality test conducted nine days after installation, the iron content dramatically decreased to 0.5 mg/l, and even 43 days after installation, the iron content remained low at 0.5 mg/l. [Effects After Installation] ■ The water quality test nine days after installation showed a dramatic decrease in iron content to 0.5 mg/l. ■ Even in the water quality test 43 days after installation, the iron content remained low at 0.5 mg/l. ■ The leaching of red rust into the water stopped, proving the rehabilitation of the piping through the black rust formation. ■ By preventing external corrosion, the piping became usable as long as the building remains standing. *For more details, please refer to the PDF document or feel free to contact us.

  • Rust Inhibitor

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[NMR Pipe Protector Verification Results] Harrods Department Store

The inspection 67 days after installation showed that the iron concentration decreased further to 0.022 mg/l! Demonstrating the effectiveness of rust prevention and extending the lifespan of piping.

At Harrods department store, galvanized steel pipes were used for the hot water supply system, and after 30 years, red water had occurred. To eliminate the red water from the hot water supply and to prevent the need for pipe replacement, an "NMR Pipe Protector" was installed on the primary side of the hot water header. The iron concentration in the stagnant water at night, which was 1.294 mg/l before installation, decreased to 0.058 mg/l 47 days after installation, and further dropped to 0.022 mg/l 67 days after installation, reducing to 1/58 of the initial value. [Effects After Installation] - The iron concentration in stagnant water at night decreased from 1.294 mg/l to 0.058 mg/l 47 days after installation. - 67 days after installation, the iron concentration further decreased to 0.022 mg/l, reducing to 1/58 of the initial value. - The deterioration caused by red rust from the inside has been completely eliminated. - By preventing external corrosion, it has become usable for semi-permanent duration as long as the building remains. *For more details, please refer to the PDF document or feel free to contact us.*

  • Rust Inhibitor

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[NMR Pipe Protector Verification Results] Commercial Facility #M

Preventing the progression of red rust! A case where the amount of black rust in the rust increased to 48.2% after 10 months of installation.

At that time, the facility had been in operation for 43 years, and there were significant concerns about the corrosion of the cooling water piping. As a countermeasure, we adopted the "NMR Pipe Protector." Before the installation of this product, the amount of black rust in the rust was 2.0%, but after 10 months of installation, it increased to 48.2%, which is a relative increase of 2410%. The prevention of red rust progression and the rehabilitation of the piping due to black rust have been demonstrated. In the future, if all the red rust in the rust turns into black rust, this piping will not require replacement as long as external corrosion does not occur. [Introduction Overview] ■ Location: Sapporo City, Hokkaido ■ Building Overview: 43 years old, 3 basement floors, 10 above-ground floors, commercial facility ■ Installation Date: February 4, 2019 ■ Installed Piping: CT-5 system cooling tower secondary side cooling water piping (SGP pipe 200mm) ■ Number of Installations: PT-200DS × 1 unit *For more details, please refer to the PDF document or feel free to contact us.

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[NMR Pipe Protector Verification Results] Major Automobile Manufacturer Factory in Fukuoka Prefecture

The amount of black rust increased significantly from 4% to 43.6%! A case where line stoppage was completely prevented.

In August 1998, an "NMR Pipe Protector" was installed in the cooling water circulation piping of the welding robot cooling line located within a major automobile manufacturer's factory in Fukuoka Prefecture to prevent red rust scale. Before installation, red rust from the cooling water piping would leach out, entering the narrow cooling tubes of the body welding robots, causing blockages that resulted in the welding robots stopping, which took over 15 minutes to recover. Nine months after installation, the cooling water piping was inspected, and compared to the amount of black rust in the red rust before installation, it significantly increased from 4% to 43.6%. Additionally, line stoppages were completely prevented. [Challenges] - Red rust leaching from the internal cooling water piping - Entry into the narrow cooling tubes of the body welding robots, causing blockages - Recovery from welding robot stoppages taking over 15 minutes - Damage costs exceeding 6 million yen per incident *For more details, please refer to the PDF document or feel free to contact us.*

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[NMR Pipe Protector Verification Results] Whittington Hospital, NHS, UK

Measures to prevent red rust and leakage in hot water supply piping! Usable for 100 or even 200 years as long as the building exists!

At Whittington Hospital, galvanized steel pipes (SGP) had been used for hot water supply piping for over 30 years, resulting in the daily occurrence of dark red water and concerns about leaks. Before the installation of the "NMR Pipe Protector," the iron content in the hot water was very high at 7.33 mg/l, and the deterioration of red rust in the pipes was significantly advanced. However, after 19 days of installation, the iron content in the hot water decreased to 0.388 mg/l. After 29 days of installation, it further reduced to 0.077 mg/l, which is 1/100 of the initial value, completely preventing the deterioration of red rust. It was proven that the red rust in the pipes transformed into insoluble and passive black rust in a volume of water that is 1/10 of the original. [Effects After Installation] - After 19 days of installation, the iron content in the hot water decreased to 0.388 mg/l. - After 29 days of installation, it further reduced to 0.077 mg/l, completely preventing the deterioration of red rust. - By preventing external corrosion, this piping can be used for 100 years or even 200 years as long as the building remains. *For more details, please refer to the PDF document or feel free to contact us.*

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[Verification Results] London City Hall West Wing (Guildhall, London)

The results significantly fell below the UK Water Supply (Water Quality) Regulations standard of 0.2 mg/l, completely resolving the issue of red water!

In the west wing of this guild hall facility built in 1974, an "NMR Pipe Protector" was installed to eliminate red water from the hot water supply piping and prevent deterioration from red rust, thereby extending the lifespan of the piping. Before installation, the iron content was at a very high level of 6.36 mg/l, but three weeks after installation, it dropped to 0.015 mg/l, and after seven weeks, it further decreased to 0.007 mg/l, significantly below the UK water supply quality standard of 0.2 mg/l, resulting in the complete elimination of red water. The occurrence of new red rust within the piping has been prevented, and the existing red rust has been converted to black rust, demonstrating the effectiveness of this product in preventing red rust and extending the lifespan of the piping. [Effects After Installation] - Three weeks after installation, the iron content was 0.015 mg/l, and seven weeks later, it was 0.007 mg/l, significantly below the UK water supply quality standard of 0.2 mg/l. - The effectiveness in preventing red rust and extending the lifespan of the piping has been demonstrated. - The hot water supply piping can be used as long as the building remains standing by preventing external corrosion. *For more details, please refer to the PDF document or feel free to contact us.*

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[NMR Pipe Protector Verification Results] Buckingham Palace

Verification of the rust prevention effect of NMR pipe protector at Buckingham Palace in the UK! Iron ion levels decreased significantly from 16.6 mg/L to 0.455 mg/L.

At Buckingham Palace, galvanized steel pipes (SGP pipes) are used for the air conditioning hot water piping and hot water supply piping, and some of the piping was updated due to deterioration from red rust. However, since the majority of the piping has not been updated, "NMR Pipe Protectors" were installed in both the air conditioning hot water piping and the hot water supply piping to prevent red rust deterioration and extend the life of the piping. Water samples were taken from the circulating hot water before and after installation, and the reduction in iron ion levels in the water was used to verify the effectiveness of rust prevention. As a result, before installation, the iron content in the water of the air conditioning hot water piping was 16.6 mg/l, but it significantly decreased to 0.455 mg/l 24 days after installation. 【Overview of Installation】 ■ Building Name: Buckingham Palace ■ Location: London ■ Building Overview: Completed in 1703, 304 years old, 775 rooms ■ Installation Date: January 12, 2007 ■ Installed Piping/Number of Installations: Air conditioning hot water piping/PT-100DS×1 unit, circulating hot water piping/PT-50DS×1 unit, circulating hot water piping/PT-30DS×1 unit *For more details, please refer to the PDF document or feel free to contact us.

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[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, red water and leaks occurred due to bacterial corrosion. 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 side hot water supply piping from the storage tank (SGP pipe 65mm)/2 units of PT-75DS - Water supply piping for the 3rd floor (SGP pipe 32mm)/1 unit of PT-30DS *For more details, please refer to the PDF document or feel free to contact us.

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[NMR Pipe Protector Verification Results] St. Ignatius Church

A case where it was confirmed that the red rust inside the piping is in a good condition and not dissolving in water!

St. Ignatius Church, also known as the Catholic Kojimachi Church, is a historic church adjacent to Sophia University that has existed since before the war. Four years ago, due to the deterioration of red rust in the air conditioning chilled and hot water piping, we conducted an evaluation of the rust prevention effect of the "NMR Pipe Protector," a device designed to prevent red rust within the piping. Before the installation of the NMR Pipe Protector, we collected samples of the circulating chilled and hot water, which showed a brownish color. Water quality tests revealed a total iron concentration of 240 mg/l, indicating significant progression of red rust corrosion within the piping. After installing the NMR Pipe Protector, we conducted another water sampling test two weeks later, and the water color had become nearly transparent, with the total iron concentration due to red rust reduced to 2.7 mg/l, a substantial decrease. At the same time that the progression of red rust had stopped, the surface red rust within the chilled and hot water piping and the red rust in the water transformed into a non-soluble black rust, confirming the rust prevention effect of the NMR Pipe Protector within the chilled and hot water piping. This result was featured in an article published on July 18, 2018, in issue 2737 of "Air Conditioning Times," which reported on the verification of the rust prevention effect of the NMR Pipe Protector at St. Ignatius Church.

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[NMR Pipe Protector Verification Results] BBC (British Broadcasting Corporation)

Verification of rust prevention effects in the air conditioning piping of the BBC (British Broadcasting Corporation)! Preventing the occurrence of new red rust and converting existing red rust to black rust, demonstrating the extension of piping lifespan.

After 53 years since its construction, the BBC (British Broadcasting Corporation) has been experiencing serious deterioration of its cooling water piping due to the use of SGP pipes, leading to frequent leaks and significant rust issues. To prevent leaks caused by rust deterioration and to extend the lifespan of the piping, four "NMR Pipe Protectors" were installed in the cooling water systems of the Main Block Building and Stage 5 Building. In the Main Block Building, the iron concentration in the water was 5.53 mg/l before the installation of the product, but it significantly decreased to 0.048 mg/l after 32 days and further reduced to 0.06 mg/l after 57 days. In Stage 5 Building, the iron concentration in the water was 3.8 mg/l before installation, which decreased to 0.063 mg/l after 32 days and to 0.008 mg/l after 57 days. Additionally, there have been no leaks reported after the installation. The prevention of new rust formation and the transformation of existing rust in the piping into insoluble black rust in the water have resulted in a reduction of iron concentration, demonstrating that this cooling water piping can be extended to the lifespan of the building. *For more details, please refer to the PDF document or feel free to contact us.*

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