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1 C = BACKWASH STAGE
-
In this stage we have pressure in points 3 - 2 of
the pilot control, transmitted to the pistons F - G
in points 3 - 2 of the valve.
-
The black arrows indicate the hard water route.
-
The white arrows indicate the regeneration water route
-
C = UNTREATED WATER INFEED.
-
B = UNTREATED WATER OUTFEED.
-
E = REGENERATION WATER OPEN DRAIN.
-
A = UNSTABLE VALVE OPEN TO GUARANTEE
WATER TO THE SERVICES DURING THE
REGENERATION STAGES.
2 C = BRINE SUCTION STAGE
IN EQUI-CURRENT
-
In this stage we have pressure in points 4 - 2 of
the pilot control, transmitted to the pistons F - G
in points 4 - 2 of the valve.
-
The black arrows indicate the hard water plus brine route.
-
The white arrows indicate the regeneration water route.
-
C = UNTREATED WATER INFEED.
-
B = UNTREATED WATER OUTFEED.
-
E = REGENERATION WATER OPEN DRAIN.
-
D= BRINE SUCTION.
-
A = UNSTABLE VALVE OPEN TO GUARANTEE
WATER TO THE SERVICES DURING
THE REGENERATION STAGES.
CONTROL
PI LOTA DI COMANDO
PILOT
E
CORPO VALVOL A
VALVE BODY
CONTROL
PI LOTA DI COMANDO
PILOT
E
VALVE BODY
CORPO VALVOL A
3
1
4
2
B
C
A
G
F
3
1
4
2
3
1
4
2
B
C
A
F
G
3
1
2
4
28
D
D
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