Rivulis F2400 Media Filter
3. After two minutes time, return the three way valve to the previous position
(automatic).
4. Repeat the same operation in the second filter, later in the third one, until every
filter in the array has been through a back-flush cycle.
Image 6. Automatic, Close and Open positions of the rhree way manual valve
(a.k.a.: sagiv)
In order to complete the initial back-flush, a total of three back-flush cycles should
be performed on each of the array’s units. If there’s not clear information regarding
the water’s quality, an additional back-flush cycle should be done.
After completing the first backflush process, turn the controller to AUTOMATIC
operation and adjust the relevant parameters as required. Open the outlet valve
(or main valve).
Working Conditions
Maximum working pressure should not exceed 8 bar (145 psi)
Head-loss should not exceed 0.5 bar (7.5 psi).
Normal working conditions are with a head-loss lower than 0.3 bar (4.35 psi) between the array’s
inlet and outlet, when the array filters are clean after having been backwashed.
An inlet pressure minimum of 2 bar (29 psi) not to exceed 8 bar (120 psi)
If head loss exceeds 0.3 bar (4.5 psi) – the filter is either partially clogged or operating under
an excessive flow rate.
A filtration flow-rate appropriate to the designed system flow-rate.
Any other situation creates incorrect working conditions.
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