Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
9
9-31
Pilot Operated Prop. Pressure Reducing Valve
Series R5R*P2
R5RP2 UK.INDD CM 02.08.11
Characteristics / Ordering Code
Proportional pressure reducing valves series R5R*P2
are based on the mechanical adjusted series R5R. The
additional proportional unit between the mechanical
pilot valve and the main stage allows continuous pres-
sure adjustment. The optimum performance can be
achieved in combination with the digital amplifier module
PCD00A-400.
Features
• Continuous adjustment by proportional solenoid
• 2-port body with SAE-61 flange
• 3 sizes (SAE ¾", 1", 1¼")
• 3 pressure stages
• With mechanical maximum pressure adjustment
Code Seals
1 NBR
5 FPM
Code Port size
06 SAE ¾"
08 SAE 1"
10 SAE 1¼"
Ordering code
R5R 8
SAE61
interface
Pressure
stages
Pressure
reducing
valve
Seals Options
6
External
drain from
Y1-port
Nominal
size
Body
2-port
(X1, Y1 = G¼")
Adjust-
ment
Code Adjustment
1 Hand knob
3
Acorn nut with
lead seal
A
Design
series
P2
Propor-
tional
pressure
control
G0R
Solenoid
voltage
12V 2.3A
Further options on request
SAE 61
Code Size Max. pressure [bar]
4 10 280
5 06/08 350
Code
Pressure stages
1 up to 105 bar
3 up to 210 bar
5 * up to 350 bar
* R5R10-485 up to 280 bar
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
9
9-32
R5RP2 UK.INDD CM 02.08.11
Pilot Operated Prop. Pressure Reducing Valve
Series R5R*P2
Technical Data / Characteristic Curves
General
Size 06 08 10
Mounting Flanged according to SAE 61
Mounting position unrestricted
Ambient temperature [°C] -20...+50
MTTF
D
value [years] 75
Weight [kg] 5.8 6.4 7.7
Hydraulic
Max. operating pressure Ports A, B, X1 [bar] 350 350 280
Port Y1 [bar] 30 30 30
Pressure stages [bar] 105, 210, 350
Nominal flow [l/min] 90 300 500
Fluid Hydraulic oil according to DIN 51524...51525
Fluid temperature [°C] -20...+80
Viscosity permitted [cSt] / [mm
2
/s] 10...650
recommended [cSt] / [mm
2
/s] 30
Filtration ISO 4406 (1999); 18/16/13 (meet NAS 1638: 7)
Electrical
Duty ratio [%] 100
Nominal voltage [V] 12
Max. current [A] 2.3
Coil resistance [Ohm] 4 at 20°C
Solenoid connection Connector as per EN175301-803
Protection class IP65 in accordance with EN 60529 (with correctly mounted plug-in connector)
Power amplifier PCD00A-400
Command / pressure curve
Technical data
All characteristic curves measured with HLP46 at 50°C.
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
9
9-33
Pilot Operated Prop. Pressure Reducing Valve
Series R5R*P2
R5RP2 UK.INDD CM 02.08.11
Characteristics Curves
Reduced pressure pA vs. flow Q
Series R5R06*P2
1)
Reduced pressure pA vs. flow Q
Series R5R08*P2
1)
Minimum pressure curve
Minimum pressure curve
Reduced pressure pA vs. flow Q
Series R5R10*P2
1)
1)
Measured at 350 bar primary pressure pB.
Minimum pressure curve
Pressure p [bar]
10
0
20
30
40
50
60
100 200 300 400 500
Flow Q [l/min]
70
80
All characteristic curves measured with HLP46 at 50°C.
Parker Hannifin Corporation
Hydraulics Group
Catalogue HY11-3500/UK
9
9-34
R5RP2 UK.INDD CM 02.08.11
Pilot Operated Prop. Pressure Reducing Valve
Series R5R*P2
Dimensions
NG B1 H1 H2 H3 H4 H5 L1 L2 L3 d1 d2
06 60 175 37 47.6 90 137 24.6 22.2 174 19 10.5
08 60 181 45 52.4 96 143 26.5 26.2 193.6 25 10.5
10 75 194 48 58.7 109 156 34.0 30.2 201 32 12.5
Port Function
Port size
R5R06 R5R08 R5R10
B Inlet pressure ¾" SAE61 1" SAE61 1¼" SAE61
A Reduced outlet pressure ¾" SAE61 1" SAE61 1¼" SAE61
Y1 External drain G¼"
X1 Pressure gauge G¼"
Seal kits
NG NBR FPM
06 S16-91850-0 S16-91850-5
08 S16-91851-0 S16-91851-5
10 S16-91852-0 S16-91852-5
Prop. section P2 * S26-58473-0 S26-58473-5
* Please combine seal kit of one size with seal kit of Prop.
section for complete seal kit
