AZUD HELIX AUTOMATIC 201 DLP User Manual page 6

TECHNOLOGY
The system carries out two independent phases called FILTRATION PHASE and
BACKFLUSHING PHASE.
In the filtration process, water is carried from the feeder
FILTRACIÓN STAGE
manifold (inlet manifold), through the backflushing three-
way valve (valve 1), to the interior of the filter through its
inlet.
Once the water come in the filter, the only track the water
of its interior can follow, are the discs channels whose
discs form a stack. This stack is compressed by the spring
action and the hydraulic power itself.
The filtered water goes through the 2" hydraulic valve
and goes to the rest of the installation.
BACKFLUSHING STAGE
Through the feeding of the three-ways
valves chambers, the inlet of water to the
filter closes, communicating the inner of
the filter with the drainage manifold,
starting the backflushing cleaning.
The filtered water given by the Special
backflushing T, is introduced in the filter.
The available hydraulic power is used to
overcome the pressure exerted by the
spring on the discs stack generating in
this way its own decompression due to
the piston displacement (raising).
The discs release makes possible its
rotation due to the tangential projection
of the water coming from the feeder
bars which at the same time are used
as structural shoulder of the discs stack.
The end of the backflushing coincides with the closure of the drainage outlet and the opening of
the outlet manifold, allowing water coming from the feeder manifold to come into the interior of
the filter and in this way, to re-establish the filtration phase conditions.
Water Filtration Solutions
Filtration
Stage
PISTON CAP WITH
LOWER SIDE OF
THE FILTERING
OUTLET
Valve 2
Valve 1
Backflushing
Stage
SPRING
INLET
ELEMENT
FILTRATION
STAGE
Valve 1
INLET
Valve 2
Filtration Backflushing
Stage Stage
BACKFLUSHING
STAGE
DRAINAGE
Special
Backflushing T
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