Magnetizers Ecomag®

PROTECTION OF SYSTEMS + ENERGY SAVING

Installation cleaning and protection with no chemicals!

Proof of non-electric ECOMAG® magnets effectiveness installed outside the system.

The Performer: COBRTI Instal with its registered office in Warsaw

The topic of the research no. NMT/196/2006 was as follows: ‘To define the corrosion products removal pace from pipes’ inner surface in the hot water system after installing Ecomag® magnets’.

AKRA has installed its patented ECOMAG® overlay magnets with asymmetric energy field bulk density. A good example of results achieved after magnets installation is the installation in one of Warsaw building cooperatives. Its hot water systems are made of zinced steel, and dozens of buildings are powered by six group system installations with the help of the underground pipes. Although the buildings have been only used since 2001, the seasonal growth of water muddiness and colour intensiveness has been already noticed in 2004 as a result of pollution caused by corrosion products coming from the pipes’ inner surface.
A fall in water quality has been noticed in all circuits, especially during the periods of law water demand, such as Monday morning.

The systems have been chemically cleaned several times due to customers’ complaints. This, however, has not eliminated the cause of residues appearance.

That is why, an attempt was made in autumn 2005 to clean the inner pipes’ surface from corrosion products with the help of Ecomag® overlay magnets. There were ECOMAG ® magnets installed on the supply pipes in the circuit marked as A which provides 28 flats with water (in two buildings and 16 terraced houses). The number of rings has been suited to the system’s diameter, water chemical composition, water demand, and length (2 x 120 m).

The research included the following circuits:

before

1. A 28 flats – installation in return pipe.

2. B 70 flats (three buildings + 23 terraced houses) – installation in supply pipe and in return pipe.

3. C 18 flats (three buildings) – installation in supply pipe and in return pipe.

The water samples have been taken for analysis several times before the magnets were installed. Whereas, after their installation, i.e. on 07 September 2006 two water samples were taken on particular days:

• The first sample was taken after initial water intake rinsing for 5 sec. during maximum water flow.

• The second sample was taken after rinsing of the pipe leading to the water intake for 10 sec. during water flow reduced by 50% That way of sample taking served to check if the process of recurring water pollution is permanent or if small-grained difficult to rinse residue accumulates. The samples, the total number of which amounted to 58, were taken at about 8 – 10 a.m. at the beginning of the week.

The research lasted until 07 November 2006r.

The following rates have been marked:

- muddiness – in order to find the pollution rate caused by small-grained substances smaller than <1 µ m;

- iron content – in order to check whether the particles causing recurring water pollution are the products of corrosion;

- particles quantity > 1µm, > 2 µm, > 5 µ m, > 10 µ m, > 15 µ m in 1 ml of water – next to the muddiness this is the cleaning process intensity rate which makes it possible to draw conclusions concerning the process of residues removal from the pipes surface.

The criteria of pollution rate assessment, caused by the corrosion products are as follows:

- potable water muddiness limit value of 1 NTU (according to the Ministry of Health directive of 19 November 2002);

- iron limit value of 0,2 mg Fe/l (as above);

- muddiness and iron contents in tap water which feeds the surveyed circuits.

The following conclusions were drawn after two months:

after

1. There has been a significant drop in hot water quality 4-5 days after installing Ecomag® magnets as a result of corrosion products getting into the water.

2. The increase in water muddiness caused by small-grained particles set free in all the circuits was of the highest rate within the first days and fluctuated from 3,8 NTU (water was acceptable for the user) in circuit B to 12 NTU (the water colour similar to the tea colour) in circuit C. The system rinsing was necessary here by draining the circuit water in the morning.

3. Lower pollution level caused by the corrosion products as well as lower water quality fluctuations were noticed in the circuits feeding large number of flats and having more balanced water intake. The maximum increase of water muddiness in that case was not higher than before the magnets installation. Higher pollution level occurred in systems serving lower number of flats.

4. The rate below 1 NTU was achieved after 24 to 60 days since magnets’ installation. That appeared sooner in systems with balanced water demand.

5. The highest increase in the number of small-grained particles (bigger than 5 µ m) occurred on about 21st day of the test as a result of residue’s structure change from dense into porous (structure similar to pumice), after prior small-grained residues layer removal. No particles bigger than 15µm appeared in water throughout the test. That is why the pumps worked appropriately.

6. The water in the circuits meets the tap water requirements, i.e. no recurring water pollution caused by the corrosion products occurred during its flow through the system.

Clean system – means heating and pumping with no losses – that means expensive fuel and electric energy savings.

The original research documents are available at AKRA Ltd office

• Ecomag magnets can be installed outside the system quickly, with no power need;

• They are effective in systems made of steel, plastics, and copper.

• They do not require any service since no contact with water takes place.

• They effectively protect heat exchangers, boilers, heaters, pumps, air conditioning and hot water systems saturators, central heating, and cold water systems.

• They have been installed since 1997 r.

There are no Legionella bacteria in the clean system and fittings (with no residues).

For more information about magnets, including those installed in power plants on the diameter of 355 mm, please visit www.akra.pl.

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Andrzej Rzepliński,

President

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