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PRESSURE READING FOR VERIFICATIONS
P1 =
H
pressure port
P2 =
L
pressure port
During cleaning operation of the valve use a damp cloth, DO NOT use any detergent or chemical solvent that could
seriously damage the parts.
ASSEMBLING MANUAL FLOW PRE-SETTING DEVICE
Pre-setting assembly
1
2
3
4
5
Assembled
PRE-SETTING COMPONENTS
1. n°2 countersunk head screw M5x20
2. Pre/setting body
6
3. Memory stop
4. P.T.F.E. anti-friction ring
5. Control stem
6. n°2 Hexagon socket set screw M6x12
Orientate these
components with the
arrow or notch in the
same direction as the
arrow marked on the
valve body.
IF P1-P2 > START UP PRESSURE THEN
Q
THE VALVE IS WITHIN THE WORKING RANGE
START UP
PRESSURE
Q≠CONST
Q=CONST
30 kPa
3mm allen key
NB: In the pre-setting plastic bag you will find also
n°4 cross head screws M5 x 30mm that you will
need to attach the actuator linkage on the valve
when the pre-setting device is on.
P1-P2
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