UDI filters 1900 Series Manual

General instructions:
This filter is designed and manufactured to meet
the highest standards of quality and
performance. This filter is primarily used as a
control filter with enhanced RVS filter screen for
higher capacities and is adapted for filtering a
small amaount of contamination.
Installation:
Water inlet and outlet are clearly indicated with
the arrows.
The flush valve (9) must be located on the bottom
of the filter.
When installing more than one filter, allow
enough room between the units for easier
maintenance.
A pressure relief valve must be installed
upstream of the filtering installation if the
pressure is not sufficiently under control.
Install a quick-acting (mechanical) check valve if
there is a risk of water flowing back.
Operation:
Normal operating conditions are achieved when
the differential pressure across the clean filter
element is less than 0.25 bar.
When the differential pressure is above 0.25 bar,
then the filter is fully or partly fouled or is
processing an excessive water flow.
Maximum work pressure is up to 8 bar.
The filter is designed for a maximum pressure of
10 bar.
Do not open the filter cover and do not tighten
it while the filter is being used or under
pressure!
Flushing:
Flushing can be easily carried out manually by
opening the flush valve at the bottom of the filter.
Check the amount of time needed to reach a
differential pressure of 0.4 bar.
Open the flush valve (09) and flush during 10-30
seconds.
Check the pressure: the differential pressure
must be 0.25 bar or less.
Periodic cleaning:
It is recommended to clean the filter and inspect
the filter element: every 2 weeks or when the
differential pressure reaches 1.0 bar or more.
3
UDI 08/2015
Control filters 1900 Series
Stop the flow to the filter.
Open the flush valve (09) to release pressure and
drain water.
Carefully remove the filter element (06)
Thoroughly clean the element with clean water,
using a brush to remove dirt particles from the
mesh (never use a steel wire brush). If the dirt
particles cannot be removed from the element
with a hair brush, dip the element into an
acid/alkaline solution. Wait a few minutes for the
solution to have its effect and then thoroughly
clean the element.
Acid injection:
The filter is suitable for water with pH values 5 to
9. In the case of acid injection into the system, it
is recommended to inject the acid after the filter
to prevent acid accumulation in case of system
failure.
It is also advisable to install a check valve after
the filter before the acid injection point.
Assembly:
Check the filter element for possible damages.
Make sure that the interior rubber gasket (7) is
well placed.
Install filter elements (06) carefully back into the
filter housing.
Make sure that the centring ring (5) fits well
around the element.
Check whether the top edge of the filter element
is even with the top edge of the filter body in
such a way that the cover rubber (04) fully covers
the element(s) and is properly centred.
Place the tightening bracket (02) and fully tighten
the spindle (01). For filters of 6" and larger,
mount the bolts and tighten them evenly (hand-
tight).
Manual