Rain Bird HDF 1X2, User Manual

Page: 6 / 21

6
4.1 Filtration Phase
In the filtration phase, water is carried from the inlet
manifold, through the backflushing three-way valve
(valve 1), to the interior of the filter through the inlet.
Once the water enters the filter, the only paths for it to
follow are the channels of the discs. The particles are
trapped by the channels in the discs.
The stack is compressed by the spring action and the
hydraulic power itself.
The filtered water goes through the 2” hydraulic valve
and proceeds through the rest of the installation. The
outlet manifold is responsible for collecting the filtered
water and carrying to the exterior.
Rain Bird HDF 1X2 Disc Filters consists of a filtering element comprised of grooved discs that allows
the retention of particles of a size larger than the required filtration grade. The equipment combines the
advantages of the disc filters with those of the helico-centrifugal effects of the Rain Bird HDF 1X2.
The system carries out two independent phases, one called the FILTRATION PHASE and the other
called the BACKFLUSHING PHASE.
4. HOW IT WORKS
Thanks to the filters helico-centrifugal effect, the number
of backflushings are dramatically reduced, minimizing
water consumption.
This is achieved by the patent-pending design located on
the base of the cartridge.