Product description
14 | 44
B
A
_
TD
3
-A
R0
0
0
en
_
0
3
5
3.3 Functional description
The unfiltered drinking water flows into the filter from the inlet side
and then from the outside in through the filter element and to the
pure water outlet. Thus, foreign particles of > 100 µm in size are
retained.
Depending on their size and weight, the foreign particles either
stick to the filter element or they fall straight down into the filter
cylinder.
By turning the backwash handwheel to the stop position, the drain
is opened. The water flows through the primary screen to the filter
element and then flows through the filter element in reverse
direction of standard filtration
. Thanks to Grünbeck’s innovative
Vortex technology, particles sticking to the filter element are
detached and washed out to the drain.
The backwash process should be carried out for approx. 5 - 10
seconds. In case some particles still remain on the filter element,
the backwash has to be repeated. Grünbeck recommends
performing a backwash every two months.
In the backwash filter pureliQ:RD, the flow-optimised pressure
reducer, which is designed according to DIN EN 1567, enables
the after-pressure on the withdrawal side to be set to 1
– 6 bar
(factory setting: 4 bar).
