Europe, Middle East, and Africa Only
(1)
See Nameplate
1. The pressure/temperature limits indicated in this instruction manual or any
applicable standard or code limitation should not be exceeded.
2. At average ambient temperature.
Functional Features
Accuracy Class AC : Up to ± 1%
Lockup Pressure Class SG : Up to + 5%
Class of Lockup Pressure Zone SZ : Up to 5%
Accuracy Class AG : ± 1%
Response Time t
a
: ≤ 1 second
Temperature
Standard Version: Working -10° to 60°C
Low Temperature Version: Working -20° to 60°C
Materials
Flanges and covers: Steel
Diaphragms: Fabric Nitrile (NBR)+PVC/
Nitrile (NBR) rubber
Pads: Nitrile (NBR) rubber
LABELLING
Note 1: See “”
Note 2: Year of manufacture
Note 3: Class 1: -10°/60°C
Class 2: -20°/60°C
Note 4: PN 16 PS: 16 bar
PN 25 PS: 25 bar
ANSI 150 PS: 19,3 bar
ANSI 300 PS: 50 bar
ANSI 600 PS: 100 bar
OVERPRESSURE PROTECTION
The recommended safety pressure limitations are stamped on
the regulator nameplate. If actual version hasn’t a built-in safety
shut-off device, some type of overpressure protection is needed
if the actual inlet pressure exceeds PS (see nameplate).
Downstream side pressure after safety shut-off device’s
intervention (in the built-in safety shut-off device
congurations) shall stay within the actual maximum
operating set-up range to avoid anomalous back pressures
that can damage the safety shut-off device’s pilot.
Equipment’s operation below the maximum pressure
limitations does not preclude the possibility of damage from
external sources or debris in the line.
Downstream overpressure protection shall be also provided
if the safety shut-off device outlet pressure can be greater
than the PS of the safety shut-off device pilot (differential
strength type). The regulators and possible built-in safety
shut-off device should be inspected for damage after any
overpressure condition and intervention.
TRANSPORT AND HANDLING
Established transport and handling procedures shall be
followed to avoid any damage on the pressure containing
parts by shocks or anomalous stresses.
Ringbolts are designed just for handling of equipment weight.
Built-up sensing lines and pressure accessories (e.g. pilots)
shall to be protected by shocks or anomalous stresses.
APPARECCHIO TIPO /DEVICE TYPE
Wau
DN2
DN1
MATRICOLA
bar
bar
SERIALNr.
°C
FLUIDO GRUPPO
FLUIDGROUP
ANNO
YEAR
HARMONIZEDSTD.
bar
NORMEARMONIZ.
LEAKAGECLASS
CLASSEDI PERDITA
FUNCTIONALCLASS
CLASSEFUNZIONALE
bar
Wao
Wa
TS
bar
pao
Cg
PS
body
bar PT= xPS bar
PS
covers
EN
bar
pmax
xxxx
body
Notified
BOLOGNAITA LY
O.M.T.
1.5Note 4Note 3
Note 2
Note 1
1
-
Figure 2. Label for FL Series Regulators
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