Self-cleaning filters
are mainly used to remove solid matter from liquid, with a degree of filtration
that can vary from 35 microns up to 6000 microns.
The liquids
subjected to filtration can be different: sea water, well water, groundwater,
river and surface water, crude oil, fuel oil, etc.
The construction materials can be different: carbon steel, stainless
steel and special austenitic ferritic steels such as Duplex, Super Duplex,
Nickel alloys and Titanium Gr. 2. Also the dimensions are fully customizable.
This backflushing filter uses a unique system that
keeps constantly clean the filter element surface ensuring maximum filtering
efficiency. During the filtration, the liquid passes through the filter
elements from the inside to the outside or vice versa depending on the chosen
type. During the cleaning phase a small part of clean fluid back flushes each
filtering element.
This phase is managed by an automatic control
system that starts and stops an electric motor. This motor opens and closes the
automatic drain valve.
The filter is washed
without interrupting the outlet flow.
Jointly they are
provided with a timer and a differential pressure switch.
This makes it
possible to achieve high and uniform flows, perfect for filling operations and
for continuous lines of production, with reduced operating and maintenance
costs.
All filters can be supplied according to the most common international
standards: ASME Sec. VIII, EN13445, BS BS500, AD2000 and can be tested
according to PED2014 / 68 / EC requirements, supplied with CE mark and USTAMP
as needed.
We
can design this type of filter for many applications but the principal one is
the removal of liquid particles.
The
filter elements can be realized in all type of metallic materials.
Type
of liquids: industrial, water, hydrocarbon, gasoline, oil, propane, etc.
This
type of filters is used for electro-chlorination plans, prefiltration of osmosi
plans, water treatment, or in protection of the seals of Peltron, Fransis o
Kaplan turbines for energy production.
They are often installed as pre-filters.