Pilot Operated Prop. Pressure Reducing Valve
Series R4R (Proportional)
4-107
R4R PROP UK.INDD RH 06.09.2011
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Characteristics / Ordering Code
Subplate mounted proportional pressure reducing valves
series R4R have a proportional solenoid operated pilot
stage and a cartridge main stage.
The optimum performance can be achieved in combina-
tion with the digital amplifier module PCD00A-400.
Features
• Continuous adjustment by proportional solenoid
• Subplate mounting according to ISO 5781
• 3 pressure stages
• With mechanical maximum pressure adjustment
Pilot ports
G1/4“
Pressure
valve
Pilot oil
Design
series
Seals
Interface
Max. pressure
350 bar
Adjustment
Reducing
function
Nominal
size
Pressure
stages
Modifi-
cations
Code Pressure stages
1 up to 105 bar
3 up to 210 bar
5 up to 350 bar
Code Interface
4
Subplate
mounting
ISO 5781
Code Seals
1 NBR
5 FPM
Code Nominal size
03 NG10
06 NG25
10 NG32
Pilot oil
Code Pilot Drain
1 Internal External from Y
2 Internal External from Y1
Code Adjustment
1
Hand knob 32mm diameter
(Standard)
3 Acorn nut with lead seal
Prop.
operation
Solenoid
voltage
12V, 2.3A
R 4 R 5 9 BG0RP2
Pilot Operated Prop. Pressure Reducing Valve
Series R4R (Proportional)
4-108
R4R PROP UK.INDD RH 06.09.2011
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Command/pressure curves
Technical Data / Characteristics Curves
Pressure stage up to 350 bar
Pressure stage up to 210 bar
Pressure stage up to 105 bar
All characteristic curves measured with HLP46 bei 50°C.
General
Nominal size 10 25 32
Interface Subplate mounting acc. ISO 5781
Mounting position as desired, horizontal mounting prefered
Ambient temperature [°C] -20...+80
MTTF
D
value [years] 75
Weight [kg] 2.7 4.5 6.0
Hydraulic
Max. operating pressure [bar] Ports A, B and X 350, port Y depressurized
Pressure stages [bar] 105, 250, 350
Nominal flow [l/min] 150 350 500
Fluid Hydraulic oil according to DIN 51524 ... 51525
Viscosity recommended [cSt] /
permitted [cSt] /
[mm²/s]
[mm²/s]
30 ... 50
20 ... 380
Fluid temperature [°C] -20 ... +70
Filtration ISO 4406 (1999) 18/16/13 (acc. NAS 1638:7)
Electrical
Duty ratio [%] 100 ED
Protection class IP65 in accordance with EN 60529 (with correctly mounted plug-in connector)
Nominal voltage [V] 12
Max. current [A] 2.3
Coil resistance [Ohm] 4 at 20°C
Solenoid connection Connector as per EN 175301-803
Power amplifier, recommended PCD00A-400
Technical data
Pilot Operated Prop. Pressure Reducing Valve
Series R4R (Proportional)
4-109
R4R PROP UK.INDD RH 06.09.2011
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Characteristic Curves
Reduced pressure pA versus flow Q
R4R03
1)
Reduced pressure pA versus flow Q
R4R06
1)
Reduced pressure pA versus flow Q
R4R10
1)
Minimum pressure curve
1)
Measured at 350 bar primary pressure pB.
Minimum pressure curve
Minimum pressure curve
10
0
Pressure p [bar]
20
30
40
50
60
100 200 300 400 500
Flow Q [l/min]
70
80
250
Reduced pressure pA [bar]
50
0
150
100
200
Flow Q [l/min]
300
350
400
500400300200100
All characteristic curves measured with HLP46 bei 50°C.
Pilot Operated Prop. Pressure Reducing Valve
Series R4R (Proportional)
4-110
R4R PROP UK.INDD RH 06.09.2011
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Dimensions
NG ISO-code x1 x2 x3 x4 x5 x6 x7 y1 y2 y3 y4 y5 y6
10 5781-06-07-0-00 42.9 35.8 21.5 – 7.2 – 31.8 66.7 – 33.4 7.9 – –
25 5781-08-10-0-00 60.3 49.2 39.7 – 11.1 – 44.5 79.4 – 39.7 6.4 – –
32 5781-10-13-0-00 84.2 67.5 59.5 42.1 16.7 – 62.7 96.8 – 48.4 3.8 – –
Tolerance for all dimensions ±0.2
NG ISO-code B1 B2 B3 H1 H2 H3 H4 L1 L2 L3 L4 L5 L6 L7
10 5781-06-07-0-00 87.3 33.35 71 134 21 68.5 109.5 29 94.8 60.8 143 144.8 164.8 38.6
25 5781-08-10-0-00 105 39.7 71 160.5 29 95 136 34.7 126.8 60.8 143 144.8 164.8 38.6
32 5781-10-13-0-00 120 48.4 71 171 29 105.5 146.5 30.6 144.3 60.8 143 144.8 164.8 38.6
NG ISO-code d1max d2max d3 t3 d4 t4 d5 d6 Subplate
1)
10 5781-06-07-0-00 15 7 7.1 8 M10 16 10.8 17 SPP 3M6B 910
25 5781-08-10-0-00 23.4 7.1 7.1 8 M10 18 10.8 17 SPP 6M8B 910
32 5781-10-13-0-00 32 7.1 7.1 8 M10 20 10.8 17 SPP 10M12B 910
1)
Details see chapter 12, series SPP
X1: G 1/4“
Y1: G 1/4“
NG ISO-code Bolt kit Surface finish
NBR FPM
10 5781-06-07-0-00 BK 505 4x M10 x 35 DIN 912 12.9 63 Nm ±15% S26-58507-0* S26-58507-5*
25 5781-08-10-0-00 BK 485 4x M10 x 45 DIN 912 12.9 63 Nm ±15% S26-58475-0* S26-58475-5*
32 5781-10-13-0-00 BK 506 6x M10 x 45 DIN 912 12.9 63 Nm ±15% S26-58508-0* S26-58508-5*
Prop.
section P2
S26-58473-0 S26-58473-5
* Please combine seal kit of one size with seal kit of Prop. section P2 for complete seal kit
