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8
P (bar)
Q (l/min)
I (%)
Q (l/min)
∆P (bar)
Qp (l/min)
P (bar)
Q (l/min)
Qa = 25 (l/min)*
TABLE 1 - FLOW / PRESSURE SPECIFICATIONS
ORDERING CODE
This is a proportional valve where both the flow rate and pressure control flow functions have
been integrated according to the 3 way regulation concept.
The interface UNI ISO 4401 - 03 - 02 - 0 - 94 standard (ex CETOP R 35 H 4.2-4-03) allows
for direct mounting on modular block or multiple sub-bases, which makes possible many
advantageous and extremely compact application solution as a consequence of their
simplicity of installation.
The 3 way type pressure compensator, inserted into the valve, holds the pressure drop across
the flow rate proportional regulator constant (approx. 8 bar) independently from the controlled
load variations, whereby ensuring proportional between the set flow rate and the electrical
command signal.
Additionally, the system maximum safety pressure can be regulated through a manual
command. This valve, if mounted on the feed line to the manifold block, can be used to control
several circuits which are not operating at the same time.
XQ.3... PROPORTIONAL FLOW CONTROL
VALVES
PRESSURE COMPENSATED
CETOP 3
INPUT SIGNAL
FLOW RATE
LOAD PRESSURE
FLOW RATE
∆∆
∆∆
∆P - PUMP FLOW RATE
(*) Tested with 25 l/min supply
CUTOFF PRESSURE (M)
Model Hydraulic Max flow Max flow Max limiter Max load
∆∆
∆∆
∆p
symbol rate in P pressure pressure
Control
(l/min) (l/min) (bar) (bar) (bar)
XQ.3.C.3.*.M
5 8÷50
10 40 25÷170 250 8
16 50÷315
28
XQ.3.C.3.*.S
5
10 40 250 8
16
28
XQ.3...
"D15P" PROPORT.SOLENOIDS CH. VIII PAGE 19
REM.S.RA... CH. IX PAGE 4
SE.3.AN21.00... CH. IX PAGE 11
BC.3.08... / BC.3.09...
BC.06.XQ3... CH. VII PAGE 13
XQ Proportional flow control valve
3 No. of way
C Pressure compensation
3 CETOP 3/NG6
* Flow rates
F = 5 l/min
G = 10 l/min
H = 16 l/min
I = 28 l/min
* M = With manual pressure limiter
S = Without manual pressure limiter
* Setting ranges
1 = 8 ÷ 50 bar
2 = 25 ÷ 170 bar
3 = 50 ÷ 315 bar
Omit for XQ.3.C.*.S version
* E = With rotary emergency (type P1)
S = Without rotary emergency
* Voltage
E = 9VDC (2,35 A)
F = 12VDC (1.76 A)
G = 24VDC (0.88 A)
** 00 = No variant
L5 = emergency lever
P5 = Rotary emergency180°
V1 = Viton
2 Serial No.
DIAGRAMS
The fluid used is a mineral based oil
with a viscosity of 46 mm
2
/s at 40°C.
The tests have been carried out at with
a fluid of a 40°C.
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8
OVERALL DIMENSIONS
BC.3.09.00.1
TYPICAL INSTALLATION
Max. operat. pressure ports A/B / With P port blocked on subplate 315 bar
Max. operating pressure ports T - for dynamic pressure see note (*) 250 bar
Regulated flow rate See diagram page before
Relative duty cycle Continuous 100% ED
Type of protection IEC 144 class IP 65
Flow rate gain See diagrams
Hysteresis with connection P/A/B/T ∆p = 5 bar (P/A) ≤4% of max. flow rate
Fluid viscosity 10 ÷ 500 mm
2
/s
Fluid temperature -20°C ÷ 75°C
Max. contamination level class 8 in accordance with
NAS 1638 with filter ß
10
≥75
Weight version XQ.3.C.*.M... 2,89 Kg
Weight version XQ.3.C.*.S... 2,39 Kg
Type of voltage 9V 12V 24V
Max. current 2.35A 1.76 A 0.88 A
Solenoid coil resistance at 25°C (77°F) 2.25 Ohm 4.0 Ohm 16.0 Ohm
(*) Pressure dynamic allowed for 2 millions of cycles.
XQ.3... PROPORTIONAL FLOW CONTROL VALVES PRESSURE COMPENSATED
• Operating specifications are valid for fluid
with 46 mm
2
/s viscosity at 40°C, using the
specified ARON electronic control units
ELECTRONIC CONTROL UNIT
REM.S.RA.*.*.
Card type control for single solenoid
SE.3.AN.21.00...
EUROCARD type control for single solenoid
Support plane
specification
Fixing screws UNI 5931 M5x80
(min. 8.8 material screws are recommended )
Tightening torque 4 ÷ 5 Nm / 0.4 ÷ 0.5 Kgm
"D15P" PROPORTIONAL SOLENOIDS
Type of protection (in relation to connector used) IP 66
Duty cycle 100% ED
Insulation class wire H
Weight (coil) 0,354 Kg
Weight (solenoid) 0,608 Kg
ETD15P - 01/2002/e
Rotary emergency
version XQ.3.C.*.*.*.E
P5 Rotary emergency 180°
L5 Emergency lever
12
123
124,5
70,5
82
22,5
Ø 40
