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NMR Pipetector

How to save pipes from corrosion damage?

Pipetector effectively prevents red rust in steel water pipes in any buildings, including apartments, hotels and hospitals. The device extends the life expectancy of metallic pipes as long as that of buildings without replacing them. It is the most cost-efficient way to address red rust-relating issues in a short period without shutting off the water supply.

Product material

Pipetector’s outer part is made of stainless steel. The inner part contains black body substances formed in a process of sintering 12 kinds of rare metals.

Product size reference sheet

Model numberWidth×Length×ThicknessWeightPipe inner diameter
PT-30DS85.8 × 121.5 × 27㎜0.8㎏6~32㎜
PT-50DS115.5 × 121.5 × 27㎜1.2㎏40~50㎜
PT-75DS144.1 × 121.5 × 27㎜1.7㎏65~80㎜
PT-100DS169.3 × 121.5 × 27㎜2.0㎏100㎜
PT-125DS194.8 × 121.5 × 27㎜2.4㎏125㎜
PT-150DS220.2 × 121.5 × 27㎜2.8㎏150㎜
PT-200DS271.3 × 121.5 × 27㎜3.5㎏200㎜
PT-250DS322.4 × 121.5 × 27㎜4.8㎏250㎜
PT-300DS373.5 × 121.5 × 27㎜5.6㎏300㎜

Place of installation

For apartment domestic tap water systems

We install Pipetector on the outlet pipe of a water pump or an elevated tank.


A suitable place for the installation varies by system and building structure. Shown below is a selection of typical installation examples.

For heating and chilled water systems

We install Pipetector on the outlet pipe of a water pump. If a system has more than one water line, Pipetector is installed on the pipe that entirely covers the water pipe.


For condenser water systems

We install Pipetector on the outlet pipe of a water pump.

For circulating, condenser water systems

For circulating domestic hot water systems

We install Pipetector on the outlet pipe of a water pump. If there is more than one water line, Pipetector is installed on the pipe where the entire water flows within.

For central domestic hot water pipes with boiler or hot water tank (or both)

*Once water passes through a pipe fitted with Pipetector, the water molecules keep their treated condition for around six hours. This is why we need to install one Pipetector per apparatus, such as an elevated tank where a large amount of water accumulates for six hours and more.

*Pipetector is basically suitable on pipes where water flows at a velocity fewer than two meters per second for maximum efficiency. For steel pipes where water runs faster than this, we install two Pipetector in series. It also needs at least a 130 mm-straight pipe for actual installation works.

Feel free to Contact us for detail

Notable advantages

Reason1:Various case studies

Our history

Since our foundation in 1988, we have been handling Pipetector as our main product for over 25 years. Thanks to the long-term support from our customers, we can keep our business growing. We strive to satisfy our customers even more, and that is why we can propose our products with confidence.

Adopted at more than 4,300 buildings

The number of successful installations we achieve is increasing every year. As of March 2022, the sum gratefully exceeded 4,300. Of the total, about 3,000 are apartments.

Pipetector can be installed at any buildings, such as hospitals, hotels, universities, museums, department stores and various factories. There are five major piping systems Pipetector is suitable: water mains, central heating and chilled, condenser, domestic tap, and hot water steel pipework.

Client testimonials

Pipetector is highly evaluated for its safeness and rust-preventing effect. It is introduced to many iconic buildings not only in Japan but also in overseas nations.

We received client testimonials from four buildings as shown above: the Royal Bank of Scotland, which highly evaluated Pipetector’s rust-preventing effect a year after the installation, the Guildhall in Central London, Whittington Hospital managed by Whittington Health NHS Trust, and a five-star hotel the Royal Garden Hotel London.


Absolutely cheaper than the replacement of steel pipes
NMR Pipetector costs 1/5 to 1/10 than pipe replacement does
*Compared with replacement cost of domestic cold-water piping in apartments

Replacement of steel pipes costs between 6 and 10 thousand US$ per family in an apartment. On the other hand, Pipetector costs 1/5 to 1/10 than the replacement. In other words, the device can reduce costs by 80 to 90%.

Avoid unnecessary risks when shutting off the water supply
No water outage

We ought to shut off the water supply to implement a replacement of steel piping, which costs a large amount of money. We need to suspend facility operation as the water supply has to be ceased during such works. This also leads to a large financial loss. It can be very profitable especially to hotels and hospitals by avoiding those works.

When it comes to Pipetector, there is no need to do so. With the device, residents at apartments and condos do not need to line up every day for a portable bathroom during the replacement.

Zero maintenance and operation costs!
Zero-maintenance and operation costs!

Pipetector does not use any power supply, consumable parts or chemical drugs, so there is no operation cost whatsoever. Also, the product itself is maintenance-free throughout its minimum life expectancy of 40 years, which leads to a significant reduction of labor and cost.

Achieving greater building asset
Contributes to increase asset value of buildings

With Pipetector, buildings can save their budget for the maintenance of steel pipes. For example, an apartment can use a budget leeway to increase its asset value. Some of our customers actually used their extra budget to paint their exterior walls, waterproof their roofs, and even install an elevator.

Actual acievements

Pipetector had a tremendous effect on improving a long-term refurbishment plan at an apartment in Japan.

The Mansion Kanri Shimbun (The condominium management newspaper) No.1053 on October 25, 2017

Reason3:Outstanding features

Total solution for red rust corrosion in steel pipes
NMR Pipetector solves problem

Red rust adheres to the inner surface of steel pipes as the years pass by.
Red rust dissolves in water and has the chemical property of making iron corrode and crumble. This leads to several issues, such as water discoloration, clogging, water leak and pipe joint break.

Reduces red rust to black rust

With free electrons of water, hydrated electrons, Pipetector converts internal red rust to another substance called black rust.

What is black rust?
Chemical properties of black rust
what is black rust

Black rust does not dissolve in water and has an octahedral solid crystal structure,
whose cubic volume is less than 1/10 than that of red rust. Black rust is used as a protective coating on the surface of iron products, such as woks and steel locomotives. Black rust forms a hard layer on the surface of iron products and protects them from rusting for years.

By converting red rust to black rust, Pipetector reduces iron content in water and stops water discoloration. Pipetector’s rust prevention effect sustains for more than 40 years with a daily water consumption at 200 ~ 300 liters per water tap. In short, Pipetector can keep your steel pipe available for as long as the life expectancy of your building.

Difference between steel pipe rinsing and Pipetector
Difference between pipe rinsing and NMR Pipetector

As for steel pipe rinsing, a conventional and major method to address red rust, pipes are damaged and deteriorated when red rust is removed from within. Quite the opposite, Pipetector improves red rust clogging inside steel pipes while strengthening pipes themselves by reducing red rust to black, not damaging the inner surface.

Extends lifespan of steel pipes to that of building
Can be used together for more than 40 years

If each room has a daily water consumption at about 200 ~ 300 liters per day, Pipetector’s effectiveness will last for more than 40 years. It means that the lifespan of your steel pipes is extended as long as that of the building’s. There are many cases where piping’s life expectancy actually extended for more than 40 ~ 50 years with Pipetector.

Case studies where steel pipes are used for over 50 years *As of 2021
  • Steel water supply piping at a major DPE plant in Tokyo: 56 years
  • Cold and hot steel water piping at Teigeki Building in Tokyo: 55 years
  • Air-conditioning hot and cold steel water pipes in the Yaesu-guchi Kaikan building in Tokyo: 56 years
Eliminates sliminess caused by bacteria

Steel pipe rinsing requires repeated cleaning once every 3 to 4 years to prevent bacteria from reoccurring. However, this hastens the steel pipe deterioration as the cleaning wears off pipe thickness. Pipetector can permanently eliminate single-cell bacteria just by installing it on the outer surface of a pipe.

Product structure
How NMR Pipetector works
Chemical reaction in steel water pipes

Red rust occurs in steel pipes when they are oxidized with water and oxygen. This process can be expressed in a chemical formula as 4FeO + 3O2 + 2H2O → 4FeO (OH). At this time, iron is deprived of electrons through the oxidation process. In other words, iron oxidation stops when electrons are given to iron. With this reaction, Pipetector reduces red rust to black rust by supplying hydrated electrons to red rust. This reaction is 6FeO (OH) + 2e → 2Fe3O4 + 2H2O + 2OH.

~Chemical reaction in water pipes~
Hydrated electrons located inside general water molecules

Water is an aggregation of water molecules (H2O). These aggregations are called water clusters, which contain hydrated electrons.

Hydrated Electrons are Located inside Normal Water Molecules
Using hydrated electrons

Pipetector generates certain electromagnetic waves that relocate hydrated electrons inside normal water clusters to their outer surface. The detail is this: when the specific electromagnetic waves are emitted to water molecules, their nuclei, which are polarized to the North and South poles like magnets, start to resonate and cause a rotation. This phenomenon is called nuclear magnetic resonance (NMR). With the NMR phenomenon and water flow in steel pipes, hydrated electrons are emitted throughout piping from the outer surface of smaller water clusters.

Using Hydrated Electrons
Steel pipes with Pipetector
Inside Pipes after Installing NMR Pipetector

Reason4:Obvious effect

Short-term effect confirmation in scientific ways

Actual benefits of Pipetector can be obtained within a month after it is installed.
Pipetector is an ideal and quick solution for red rust-related problems, such as water discoloration and cloggings in steel pipes.

*Required time varies, depending on conditions. Please contact us for detailed information.

Three ways to measure effectiveness

Select the most appropriate method for measuring the effect depending on the property type and piping system. We propose one of the three main measurement methods: filter, water sampling, and extraction of steel piping.

Example case study of water sampling
An example case of water sampling

Before installation, the level of iron content was 5.1 ㎎/ℓ in the steel water pipe, but after 3 weeks, it dropped to below 0.03 ㎎/ℓ.

An example case of filtering
An example case of filtering

Before installation, the level of iron content was 7.0 ㎎/ℓ after 14-day filtering. After a month, the level was reduced to 0.61 ㎎/ℓ tested under the same conditions as before.

An example case of cutting steel pipe
Sampled rust had a black rust ratio at only 4% before installation. However, after 9 months, the ratio soared to 43.6%. *A trial test at a major automobile factory

Sampled rust had a black rust ratio at only 4% before installation. However, after 9 months, the ratio soared to 43.6%.
*A trial test at a major automobile factory

Effectiveness proven by a third-party, scientific institution
Test result at Industrial Technology Research Facility in Hokkaido

Pipetector effectiveness was tested by Prof.
Yuta from Hokkaido University at Industrial Technology Research Facility in Hokkaido as a scientific proof.
In detail, level of iron content in water was 0.786 ㎎/ℓ before installation but was gradually reduced in a month after installation and was further reduced to 0.262 ㎎/ℓ after 4 months. The level is now less than that of the Japanese Drinking Water Safeness Act set at 0.3 ㎎/ℓ.

Before installationAfter 1 monthAfter 2 monthsAfter 4 monthsThe Japanese
Drinking Water Safeness Act
Iron content (㎎/ℓ)0.7860.5530.4230.262< 0.300
Color (degree)14.71395< 5
*Sampled 500 cc of water at the earliest in the morning. The water was unused for consecutive 8 hours during the night.
Before installation
and After 1 month

After 2 months
After 4 months


Recognized product

Patented world-wide
Certificate of US patent
  • Certificate of Japanese patent – Patent No. 3952477, May 2007
  • Certificate of US patent – Patent No. 7622038, Nov. 2009
  • Certificate of Hong Kong patent – Patent No. 1087963, Sep. 2008
  • Certificate of S. Korean patent – Patent No. 436113, Jun. 2004
NETIS -New Technology Information System for public construction works –
Certificate of Japanese patent

Certificate of Hong Kong patent
Certificate of S. Korean patent
Certificate of registration on NETIS

To realize the anti-corrosion effect on water pipes, Pipetector adopts a technology using a phenomenon called nuclear magnetic resonance. This technology was registered on NETIS: New Technology Information System on Dec. 13, 2010, followed by another registration on NETIS Plus on Apr. 1, 2016. Both online platforms were managed by the Japanese Land, Infrastructure, Transport and Tourism Ministry.

*Any registrations on NETIS, including ours, were transferred to NETIS Plus in three years of registration.

*NETIS Plus terminated its service on Jun. 30, 2020.

< Registered Info. >

  • Name: NMR technology
  • Registration No.: KT-100072
Scientific papers, participation in conferences
The 13th Asian-Pacific Corrosion Control Conference (APCCC)

We presented a paper on the anti-corrosion technology utilizing NMR phenomenon at the 13th APCCC held at Osaka University from November 16th to 20th, 2003.

Japan Association of Corrosion Control (JACC)

We presented a paper on the NMR technology at a historical scientific conference on rust prevention and control organized by JACC.

【About JACC】 Being approved by the Ministry of Economy, Trade and Industry, JACC was established in 1957 for the purpose of developing and spreading anti-corrosion measures through the public. It also published our paper in its monthly magazine Rust Prevention & Control Japan vol. 49, No. 10 in 2005.

【About our paper】The paper, titled: “Pipe rebirth technology extending the pipe lifespan,” describes in detail a test result in which Pipetector successfully converted internal red rust to black rust.

In the study, Pipetector showed its effectiveness in solving water discoloration and red rust development as well as attaining reduction of red rust to black rust in a pipe. Pipetector was also effective at a place 150 meters away from the device.

World Pharmaceutical Congress 2010

We presented a test result on the technology of blood oxidation control at WCP2010 held from July 17 to 23, 2010. The presentation was mainly made by JSP President Katsuyuki Kumano, Prof. Yamamoto from the Faculty of Pharmacy at Ohu University and other relating professors.

WCP2018 KYOTO: the 18th World Congress of Basic and Clinical Pharmacology
18th World Congress of Basic and Clinical Pharmacology

We were the first group to succeed in reducing blood pressure with a device. We wrote a treatise on the result and then presented it at the 18th World Congress of Basic and Clinical Pharmacology (WCP2018) in Kyoto between July 1 and 6, 2018.

Katsuyuki Kumano at Japan System Planning and professors at Ohu University, Japan Health Care College and Tokyo University of Science made the research together.



A 10-year product warranty available for every customer who purchases Pipetector.
If the device does not work properly, we will replace it with a new one free of charge.

Anti-scale device

Innovative technology obviating chemical dosage

  1. Protects pumps from being damaged by calcium scale
  2. Improves the heat exchange efficiency
  3. Prevents the calcium scale adhesion

Our other device, Non-Scalor, works as follows: Non-Scalor oxidizes calcium elements (calcium hydroxide) in water to make them disperse into ultra-fine particles of calcium carbonate. This function prevents calcium scales from adhering to the inner surface of water pumps, boilers and other heat exchangers.

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