Judo FIMAT JFXL-M 1 1/2, Инструкция по установке и эксплуатации

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14 JUDO FIMAT
Operation
5.5 Function
The JUDO FIMAT backwash protective filter
removes all coarse and fine-grained impuri-
ties. Such impurities can cause pitting in cold
and warm water pipelines, or they can lead
to the malfunctioning of fittings and control
elements, as well as sensitive instruments.
In the JUDO FIMAT backwash protective
filter the water flows from the outside to the
inside through a cylinder strainer, so that the
impurities are visible on the strainer through
the filter housing. If the filter is soiled, it will be
cleaned without interruption of operations.
JUDO FIMAT manual backwash protec-
tive filter JFXL-M:
Depending on the volume of water flow and
on the kind and extent of coarse and fine-
grained impurities existing in the water, the
JUDO FIMAT backwash protective filter
should be backwashed at six month inter-
vals maximum, provided extensive impuri-
ties do not necessitate backflushing at
shorter intervals. Backwashing should be
done at full pressure of waterline. To clean
the filter, turn the hand valve six rotations to
the left until you reach the stop. To close the
hand valve, turn it six rotations to the right
until no flushing water discharges.
JUDO FIMAT backwash protective filter
with time control JFXL-T:
With respect to JFXL-T, the automatic back-
washing procedure has been set for one
week by the factory. Depending on more or
less accumulation of dirt, it is necessary to
set the automatic backwashing procedure
alternatively to one month, one day or to one
hour (see chapter “Setting the backwashing
interval”).
JUDO FIMAT backwash protective filter ,
including time and differential pressure
control JFXL-TP:
Due to the impurities deposited on the filter
mesh, an increased differential pressure
between the inflow and the outflow will occur
at a respective flow. The differential pres-
sure switch records the differential pressure
existing at the filter. If the differential pres-
sure reaches the set value, the backwashing
procedure is automatically triggered. The
differential pressure control is connected in
priority to the time interval.
The differential pressure switch is flanged
on over the intermediate flange directly to
the filter.
Selecting the backwashing intervals
Mesh size
mm (inch)
Application cases
Backwashing intervals
1)
0.03 (0.001)
Doctor’s practices, laboratories,
photo labs
24 hours
0.10 (0.004)
Domestic water installations in
private and commercial buildings
1 week, 1 month
0.10 (0.004) and
0.32 (0.01) Domestic water installations
Well water
24 hours, 1 week
0.32 (0.01) and
0.50 (0.02) Industrial sector
Air conditioning systems
24 hours, 1 week
1) Depending on the amount of dirt arising