PRQ0.S10 VALVE SERIES
SAE Cartridge - 350 bar
Proportional Solenoid Valve
2 way proportional pressure relief
DESCRIPTION
The PRQ0 is a two way proportional solenoid pilot-operated, spool type, screw-in hydraulic cartridge relief valve with a decreasing
pressure-current characteristic. When de-energized the relief pressure at port 1 is set to a relieving pressure value, based via the
adjustment screw regulation. When energized, the pressure setting decrease proportionally to the applied current from this pre-
setted maximum pressure to the minimum allowable. The valve has also an air bleeding function, operated via a special nut, that
allows to reduce vibration and, if used, to install the valve with no restriction on orientation.
HYDRAULIC SYMBOL
Cavity
Cross section
SAE10
TECHNICAL DATA
500 cm
3
/ min at 80 % of nominal set point
EXTERNAL COMPONENT TREATMENT
Zn/Fe - standard (96h)
Zn/Ni (720h) (Upon customer request)
MAXIMUM FLOW
120 l/min
MAXIMUM OPERATING PRESSURE
350 bar
WEIGHT
0,231 kg
SEAL KIT CODE
SK.226 and SK.087 (coil) (standard sealing NBR-BUNA-N)
OIL TESTING CONDITIONS
ISO VG 46 cSt
TECH. SPEC. FOR CHARACTERIZATION
see page 811
ORIENTATION
Recommended below tank level or alternatively in coil side down orientation
INSTALLATION TORQUE
55-65 Nm
FILTRATION
20/18/15 ISO 4406 (maximum filtration admitted)
VISCOSITIES
7,4 to 420 cSt
FLUIDS
Mineral - based or synthetics with lubricating properties
OIL TEMPERATURE RANGE
-30° C to 110° C
O-RING TEMPERATURE RANGE
-30° C to 110° C (standard sealing NBR - BUNA - N)
-35° C to 140° C (HNBR - Upon customer request)
-23° C to 225° C (FKM - Upon customer request)
Hex.24
COILS
19W (for more details see page 773 - 785)Performance and Validation test
performed with VIS products CCR0D.C12.E0 (12Vdc-19W) and CCR0D.
C24.E0 (24Vdc-19W)
MAXIMUM INTERNAL LEAKAGE
PRESSURE SETTING RANGE - LOW
15 - 60 bar
PRESSURE SETTING RANGE - MED
15 - 230 bar
P R Q 0
.
ORDERING CODE
S 1 0 0
*
. .
* * *
Valve basic code
7/8-14 UNF with Ø15,86 nose size
Size
Marking
0 = Standard factory marking.
Customized marking can be
done upon request
000 = No specific pressure setting
required
Bias Spring Options
Spring model
code
Pressure setting
range
Y 15-60
N 15-230
PROPORTIONAL SOLENOID Valves
Specifications may change without notice.
765 766
PROPORTIONAL SOLENOID Valves
767 768
The performance chart illustrates flow handling capacity at maximum setting of
230 bar with de-energized coil and with coil energized at different current
values (@ 12 Vdc). p/Q curves are recorded at TOil = 40°C and 46 cSt.
PRQ0.S10 GRAPHS
Pressure vs Flow Energized
Note
The performance chart illustrates flow handling capacity at maximum setting of 230 bar with de-energized coil and with coil
energized at different current values (@ 12 Vdc). p/Q curves are recorded at TOil = 40°C and 46 cSt.
Pressure Vs Current
Note
The performance chart illustrates pressure setting regulation. Current percentage is referred to steady-state current of the coil.
PWM frequency set to 200 Hz. Curves are recorded at TOil = 40°C and 46 cSt (energized @12 vdc and @24 Vdc).
Pressure vs Flow De-energized
Note
The performance chart illustrates flow handling capacity at maximum setting of 230 bar with de-energized coil and with coil
energized at different current values (@ 12 Vdc). p/Q curves are recorded at TOil = 40°C and 46 cSt.
