STF-Filtros FMA-6000, Installation, Operation And Maintenance Manual

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TECHNICAL SPECIFICATIONS
Equipment general description
The filter is composed of a metallic body, gear crown, main drain, opening valve (backwashing),
a pump for injecting clean water to the nozzles and a geared motor for rotation crown and measure and
control elements running. The filtering element is a special screen, fixed to the rotation crown, for filtering
all kinds of dirt particles, with a hydrodynamic profile that provides low head loss and reduces
turbulences, reduces head losses and avoid dirt particles accumulation.
All the materials are top-quality, in all the mechanic elements that are in contact with water it is
used stainless steel or similar. The filter body is made of carbon steel. The mechanic elements are in the
“clean water” side (water under the screen) in such a way that no foreign object can affect its performing
or deterioration.
FMA-6000 filters fit directly to the pipe by means of flanges, as it was one more element of the
pipe. Only the electric and control elements require installation.
It is a self backwashing automatic filter that has minimum maintenance and low consumption.
Performance
Water goes through the rotative screen and all the dirt particles bigger than the screen holes get
filtered. When the default pressure differential, backwashing starts, this is made area by area, collecting
waste materials to be expelled to the exterior.
The backwashing cycle starts when the default differential pressure is detected on both sides of
the screen. At that moment, the crown starts spinning until an area is placed just in the backwashing
chamber and then the backwashing valve is opened and the pump for water is started for water flooding
through the nozzles, from the “clean water” screen side. A screen exhaustive backwashing is obtained by
means of these nozzles. The backwashing valve stays open during the backwashing pre-set time and
then it closes. The crown moves on to the following area and the opening and closing the backwashing
valve and the water flooding pump cycle starts again.