ANTI-SCALE CONDITIONING

Calcareous scale is caused by the presence of calcium and magnesium salts dissolved in water

in the form of soluble bicarbonates.

Through the effect of heat, these salts are transformed into insoluble carbonates and tend to

agglomerate as crystals, forming calcareous scale on the surface of pipes, coils and storage

tanks used for the production of hot water for domestic or industrial use.

Over time, the scale obstructs pipes and forms thick encrustations in heating systems. This leads

to inefficiency and to a drastic reduction in energy output, as well as to high servicing and

maintenance costs.

WATER HARDNESS

The quantity of calcium and magnesium salts dissolved determines the “hardness” of the water,

which is generally measured in French degrees (°f). One French degree corresponds to 10 ppm

of CaCo3 (calcium carbonate).

Classification of water on the basis of hardness:

Soft water: below 5 °f.

Moderately hard water: from 5 to 7 °f.

Water of average hardness: from 8 to 12 °f.

Hard water: from 13 to 25 °f

Extremely hard water: 26 °f and beyond.

Water hardness can be tested rapidly using EASYTEST strips, or more accurately using the

HARDNESS CONTROL KIT.

CODE

RE8000011

RE8000111

PRODUCT

EASY TEST TH IN BLISTER WITH 5 STRIPS

EASY TEST TH IN PACK WITH 50 BLISTERS

Total hardness °f

5°

7°

12°

25°

37°

286 | anti-scale systems

ANTI-SCALE TREATMENT

WITH POLYPHOSPHATES

(CHEMICAL CONDITIONING)

Polyphosphate treatment is a simple,

effective and economic solution for the

problem of scale deposits. When dissolved

in water, the polyphosphate prevents the

formation of calcium

carbonate encrustation by acting upon its

crystallization, without affecting the

hardness of the water. Over time, it also

tends to break down existing deposits.

Polyphosphates also provide effective

protection against corrosion by creating a

thin protective film on the surface of the

pipes, coils and water heaters.

- Proportional dosing systems

with polyphosphate powder

or ready-to-use refill

DOSAPLUS.

Designed for the use with drinking water.

- Proportional dosing systems

with polyphosphate crystals

DOSAPROP and DOSAPROP-HA.

Designed for the use with drinking water.

- Non-proportional dosing systems

with polyphosphate crystals

DOSAFOS, DOSAFOS-HA,

and DOSAL.

These dosing systems are designed for

“technical” applications which are not

intended to provide drinking water.

ANTI-SCALE TREATMENT

WITH MAGNETIC SYSTEMS

(PHYSICAL CONDITIONING).

The water is conditioned using a magnetic

field which modifies the structure of the

calcium and magnesium salt crystals,

preventing the formation of calcium

carbonate encrustations. It does not alter the

hardness of the water or its salt content. This

type of treatment does not provide

protection against corrosion.

- Magnetic anti-scale systems

MAG conditioners.

MAG are designed for household use for

the treatment of drinking water.