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Scale Free Systems - Scale and Corrosion Control
Going Green is important. SCALE FREE systems is a non-chemical,
non-magnetic, environmentally friendly method developed to control
the most basic problems of water treatment. The SFS method addresses
the four primary concerns of water treatment for boilers, heat
exchangers, chillers, cooling towers, evaporative condensers, etc.
as follows;
1) SCALE PREVENTION & REMOVAL
Scale is the ability of minerals in water to precipitate out of
water, due to their inherent electrical nature, and attach to the
nearest metallic surface, i.e. pipe or vessel. Because water has a
dynamic electrical energy, the minerals in water have the ability to
move towards the nearest metal. This dynamic energy acts as a magnet
to attract minerals in the water.
SCALE FREE SYSTEMS’S system drains this energy and creates a
better electrolyte to the water system being treated. SFS simply
stabilizes the electrolytic energy, removes it from the water and
feeds it to the dry side of the metal container we desire to
protect. Without the attraction to move, the minerals will stay in
solution and with regular conductivity control will be disposed of
through automatic blowdown.
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The SFS process is considered a crystal modification process similar
to the reaction that occurs with the use of specialty chemicals such
as maleates, sulfated styrene and co-polymers or applied other
electrolytic type chemistry. These chemicals will disperse existing
deposits or suspended solids. Crystal modification technology allows
the hardness to come out of solution but scale crystals are modified
so that a non-sticking sludge or flake can be removed by bleed off.
2) CORROSION CONTROL
Allowing the minerals in water to stay in solution also inhibits
corrosion for SFS . By allowing the natural alkalinity and calcium
hardness present in the make up water to increase, the pH tends to
level off in the 8.8 to 9.5 levels. At these levels the buffered
alkalinity contributes to corrosion control. It is an accepted fact
that pH above 8.5 will contribute greatly to corrosion control. This
type of corrosion protection is considered a cathodic approach due
to the calcium carbonate ions migration into the high pH film around
8.3 to 9.5 level. A thin layer of calcium carbonate is formed,
enough to effectively maintain satisfactory heat transfer while
providing a protective film for corrosion inhibition. Cycles of
concentration are regulated to achieve maximum stability.
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