4-11
R_RS.PMD CM
Catalogue HY11-2500/UK
Pilot-Operated Pressure Relief Valves
Series R / RS
4
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
The pressure relief valve series R consists of a manual
adjustment pilot stage and a cartridge main stage.
The pressure relief valve series RS consists of a manual
adjusted pilot stage with a directional valve for an electri-
cally controlled vent function and a cartridge main part.
Features
• Pilot operated with manual adjustment
• 3 interfaces
- subplate, ISO 6264 (DIN 24340 Form D + Form E)
- slip-in, ISO 7368
• 4 pressure stages
• 2 switching types (series RS)
• 3 adjustment modes
- screw with lock nut
- hand knob
- DIN lock
• Remote control via port X
Characteristics
RS25M
RS25R
Code 1 Code 9 Code 1 Code 9
4-13
R_RS.PMD CM
Catalogue HY11-2500/UK
Pilot-Operated Pressure Relief Valves
Series R / RS
4
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
10 NG10
25 NG25 Subplate mounting
32 NG32
16 NG16
25 NG25
32 NG32
Slip-in mounting
40 NG40
50 NG50
63 NG63
Ordering Code
RS
Switching
type
Solenoid
SW
Adjust-
ment
Pressure
relief valve
with elec.
unloading
Nominal
size
Interface
Pressure
stages
Pilot oil
Poppet
spring
Seals
Options
Without
plug
Design
series
Code Seals
N NBR
V FPM
Code Switching type
1
5)
Solenoid not activ.
unpress. circulation
9
5)
Solenoid activated
unpress. circulation
Code Solenoid
6)
K 12V
J 24V
U 102V
G 102V
6)
use plug with rectifier at AC
Code Nominal size / Mounting
Code Pressure stages
07 up to 70bar
17 up to 175bar
25 up to 250bar
35 up to 350bar
Pilot oil
Code Pilot Drain
1 Internal External
4
4)
Internal Internal
Spool
type
R
1)
M
E
Code Interface
Slip-in
mounting
ISO 7368
Subplate
mounting
ISO 6264
1)
external drain with pipe only
Code Spool type
omit Standard
S07
7)
with poppet seals
Code Options
omit Standard
S with slow unloading
4)
not for slip-in mounting
S
7)
for slip-in mounting only
(not for NG16)
Code Adjustment
L DIN lock
Hexagon screw
S
2)
with lock nut
K
3)
Hand knob
2)
for slip-in mounting only
3)
for subplate mounting only
5)
detailed symbols see page 4-11
4-14
R_RS.PMD CM
Catalogue HY11-2500/UK
Pilot-Operated Pressure Relief Valves
Series R / RS
4
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
Technical Data
R*R /M and R*E
General
Nominal size 10 25 32 16 25 32 40 50 63
Interface Subplate mounting acc. ISO 6264 Slip-in mounting acc. ISO 7368
Mounting position as desired, horizontal mounting prefered
Ambient temperature [°C] -20...+80
Weight Series R*R [kg] 4.5 5.8 7.8 — — — — — —
Series R*M [kg] 2.7 4.5 6.0 — — — — — —
Series R*E [kg] — — — 2.2 3.5 4.9 8.0 13.7 22.8
Hydraulic
Operating pressure [bar] Ports P or A and X up to 350, connection T or B and Y depressurized
Pressure stages [bar] 75, 175, 250, 350
Nominal flow Series R*R [l/min] 250 500 650 — — — — — —
Series R*M [l/min] 150 350 650 — — — — — —
Series R*E [l/min] — — — 220 500 950 1400 2300 4000
Pressure medium Hydraulic oil according to DIN 51524 ... 525
Viscosity, recommended [mm²/s] 30 ... 50
maximum [mm²/s] 20 ... 380
Pressure medium temperature
recommended [°C] 30 ... 50
maximum [°C] -20 ... +70
Permitted contamination ISO 4406-1999; 18/16/13
General
Nominal size 10 25 32 16 25 32 40 50 63
Interface Subplate mounting acc. ISO 6264 Slip-in mounting acc. ISO 7368
Mounting position as desired, horizontal mounting prefered
Ambient temperature [°C] -20...+80
Weight Series RS*R [kg] 5.9 7.2 9.2 — — — — — —
Series RS*M [kg] 4.4 6.2 7.7 — — — — — —
Series RS*E [kg] — — — 2.7 5.2 6.4 9.5 15.2 24.3
Hydraulic
Operating pressure [bar] Ports P or A and X up to 350, connection T or B and Y depressurized
Pressure stages [bar] 75, 175, 250, 350
Nominal flow Series RS*R [l/min] 250 500 650 — — — — — —
Series RS*M 150 350 650 — — — — — —
Series RS*E — — — 220 500 950 1400 2300 4000
Pressure medium Hydraulic oil according to DIN 51524 ... 525
Viscosity, recommended [mm²/s] 30 ... 50
maximum [mm²/s] 20 ... 380
Pressure medium temperature
recommended [°C] 30 ... 50
maximum [°C] -20 ... +70
Permitted contamination ISO 4406-1999; 18/16/13
RS*R /M and RS*E
Electrical (solenoid)
Duty cycle [%] 100 ED
Plug connectors 2pole + PE / connector acc. to EN 175301-803
Protection class IP54 at DIN 40050 (plugged and mounted)
Direct current [V] Code Power [W] Current [A]
12 K 2.5
24 J
31
1.25
98 U 0.31
198 G 0.15
Response time [ms] Energized / deenergized 32 / 40
Switching frequency Max. 15000 switchings/hour
4-15
R_RS.PMD CM
Catalogue HY11-2500/UK
Pilot-Operated Pressure Relief Valves
Series R / RS
4
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
Characteristic Curves
p/Q performance curve
Series R/RS*R
1)
p/Q performance curve
Series R/RS*M
1)
p/Q performance curve
Series R/RS*E
1)
Minimum pressure curve
1)
The performance curves are measured with external drain.
For internal drain the tank pressure has to be added to curve.
Minimum pressure curve
Minimum pressure curve
4-21
R_RS.PMD CM
Catalogue HY11-2500/UK
Pilot-Operated Pressure Relief Valves
Series R / RS
4
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
Dimensions
RS*E
Size H b
1
d
1
d
2
t
2
NG16 135 79
1)
32 25 56
NG25 140 85 45 34 72
NG32 145 102 60 45 85
NG40 196 125 75 55 105
NG50 231 140 90 68 122
NG63 246 180 120 90 155
1)
width 65mm
NG NBR FPM
16 BK-M8x50-4pcs 33Nm SK-RS16E SK-RS16EV
25 BK-M12x50-4pcs 115Nm SK-RS25E SK-RS25EV
32 BK-M16x55-4pcs 281Nm SK-RS32E SK-RS32EV
40 BK-M20x70-4pcs 553Nm SK-RS40E SK-RS40EV
50 BK-M20x75-4pcs 553Nm SK-RS50E SK-RS50EV
63 BK-M30x100-4pcs 1910Nm SK-RS63E SK-RS63EV
Bolt kit- DIN912 12.9
4-22
R_RS.PMD CM
Catalogue HY11-2500/UK
Pilot-Operated Pressure Relief Valves
Series R / RS
4
Parker Hannifin GmbH & Co. KG
Hydraulic Controls Division
Kaarst, Germany
Comparison DIN NG to ISO code
Dimensions
* only with c4
max
and t4
max
NG b1 d1 H7 d2 H7 d 3 d3 max d 4 d4 max* d5 max d 6 d7 H13 m1±0.2 m2±0.2 m3±0.2
16 65 32 25 16 18 16 25 4 M 8 4 46 25 23
25 85 45 34 25 25.5 25 32 6 M 12 6 58 33 29
32 102 60 45 32 36 32 40 8 M 16 6 70 41 35
40 125 75 55 40 43 40 50 10 M 20 6 85 50 42.5
50 140 90 68 50 56 50 63 10 M 20 8 100 58 50
63 180 120 90 63 74 63 80 12 M 30 8 125 75 62.5
NG m4±0.2 t1+0.1 t2+0.1 t3 t4 t4 max* t15 t 6 t 7 t 8 t10 U W
16 10.5 43 56 11 34 29.5 20 20 2 2 10 0.03 0.05
25 16 58 72 12 44 40.5 30 25 2.5 2.5 10 0.03 0.05
32 17 70 85 13 52 48.0 30 35 2.5 2.5 10 0.03 0.1
40 23 87 105 15 64 59.0 30 45 3 3 10 0.05 0.1
50 30 100 122 17 72 65.5 35 45 4 3 10 0.05 0.1
63 38 130 155 20 95 86.5 40 65 4 4 10 0.05 0.2
Mounting pattern ISO 7368-B*-*-B
Surface finish:
= R
max
16, =
√
1
2
√
R
max
8
DIN NG ISO code
16 7368-BA-06-2-B
25 7368-BB-08-2-B
32 7368-BC-09-2-B
40 7368-BB-10-2-B
50 7368-BE-11-2-B
63 7368-BF-12-2-B
