4-71
VBY_K UK.INDD RH 06.09.2011
Proportional Pressure Relief Valve
Series VBY*K
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
VBY*K10
Features
• Proportional adjustment
• Subplate mounting acc. to ISO 5781
• External drain
• Main stage spool type valve
• Pilot stage seated type valve
Pilot operated relief valve with proportional adjustment.
Series VBY*K is a pilot operated pressure valve with
external drain. The external drain allows an application
as sequence and as pressure relief valve. For use as
pressure relief valve observe hydraulic connection.
The optimum performance can be achieved in combina-
tion with the digital amplifier module PCD00A-400.
Ordering code
Characteristics / Ordering Code
VBY*K06
VBY*K10VBY*K06
VBY*K10VBY*K06
Nominal
size
Sequence
valve
Max.
setting
range
Proportional
solenoid
9 VDC/2.5A
Seals
Code Max. setting range
064 64 bar
100 100 bar
160 160 bar
210 210 bar
315 315 bar
Design
series
(not required
for ordering)
A X Y B
PA B*
A P T
T
T
VBY K
Code Seals
N NBR
V FPM
Code Nominal size
06 NG06
10 NG10
4-72
VBY_K UK.INDD RH 06.09.2011
Proportional Pressure Relief Valve
Series VBY*K
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Technical data
General
Design Proportional pressure relief valve
Nominal size NG06 NG10
Interface Subplate mounting according to ISO 5781
Actuation Proportional solenoid
Mounting position unrestricted
Ambient temperature [°C] -20 ... +70
MTTF
D
value [years] 75
Weight [kg] 2.4 4.5
Hydraulics
Max. operating pressure [bar] Ports P and A 315; Port T depressurized Ports A and B 315; Port Y depressurized
Nominal flow [l/min] 40 160
Adjustment range [bar] up to 64, 100, 160, 210, 315
Fluid Hydraulic oil as per DIN 51 524 ... 51525
Viscosity recommended [cSt] /
maximum [cSt] /
[mm²/s]
[mm²/s]
30 ... 50
20 ... 380
Pressure medium temperature
recommended
maximum
[°C]
[°C]
30 ... 50
-20 ... +70
Filtration ISO 4406 (1999) 18/16/13 (acc. NAS 1638:7)
Linearity [%] ±3.5 at > 15% pnom.
Repeatability [%] <±2
Hysteresis [%] <3
Response time [ms] <150 <200
Electrical
Duty ratio [%] 100 ED
Protection class IP65 at EN 60529 (with correctly mounted plug-in connector)
Nominal voltage [VDC] 9
Max. current [A] 2.7
Nom. current [A] 2.5
Ambient temperature [°C] -20...+70
Coil resistance [Ohm] 21 at 20°C
Solenoid connection Connector as per EN 175301-803
Power amplifier PCD00A-400
Characteristic pressure curves for NG06 p = f (U
set
)
Setting range max. 64 bar
Setting range max. 210 bar
Technical Data / Characteristic Curves
60
50
40
30
20
10
0
Pressure p [bar]
0.0
0
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10
500 750 1000 1250 1500 1750 2000 2500
0
250
Set value U [V]
set
Solenoid current I [mA]
s
typical
500 750 1000 1250 1500 1750 2000 2500
0
250
220
200
180
160
140
120
100
80
60
40
20
0
Pressure p [bar]
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10
Set value U [V]
set
Solenoid current I [mA]
s
typical
All characteristic curves measured with HLP46 bei 50°C.
4-73
VBY_K UK.INDD RH 06.09.2011
Proportional Pressure Relief Valve
Series VBY*K
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Setting range max. 315 bar
0 10 20 30 40
0
20
60
100
140
180
220
260
300
Flow Q [l/min]
Pressure p [bar]
p
e min
625 mA
1875 mA
1250 mA
2500 mA
0 10 20 30 40
0
20
40
60
80
100
120
Flow Q [l/min]
Pressure p [bar]
p
e min
625 mA
1875 mA
1250 mA
2500 mA
Setting range max. 64 bar
p/Q characteristics
Setting range max. 210 barSetting range max. 160 bar
0 10 20 30 40
0
20
40
60
80
100
120
140
160
180
Flow Q [l/min]
Pressure p [bar]
p
e min
625 mA
1875 mA
1250 mA
2500 mA
Flow Q [l/min]
Pressure p [bar]
0 10 20 30 40
0
20
60
100
140
180
200
240
p
e min
625 mA
1875 mA
1250 mA
2500 mA
Setting range max. 100 bar
0 10 20 30 40
Flow Q [l/min]
Pressure p [bar]
p
e min
0
10
20
30
40
50
60
70
80
625 mA
1875 mA
1250 mA
2500 mA
Characteristic Curves
NG06
All characteristic curves measured with HLP46 bei 50°C.
4-74
VBY_K UK.INDD RH 06.09.2011
Proportional Pressure Relief Valve
Series VBY*K
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Characteristic Curves
NG06 step response signal, setting range max. 210 bar
Setting range max. 64 bar
p/Q characteristics
Setting range max. 100 bar
Pressure p [bar]
e
0 20
40
60 80 100 120 140 160
Flow Q [l/min]
80
70
60
50
40
30
20
10
0
p
e min
625 mA
1875 mA
1250 mA
2500 mA
Pressure p [bar]
e
Flow Q [l/min]
0 20
40
60 80 100 120 140 160
120
100
80
60
40
20
0
p
e min
625 mA
1875 mA
1250 mA
2500 mA
0 20
40
60 80 100 120 140 160
Pressure p [bar]
e
Flow Q [l/min]
180
160
140
120
100
80
60
40
20
0
p
e min
625 mA
1875 mA
1250 mA
2500 mA
Setting range max. 160 bar
0 20
40
60 80 100 120 140 160
Pressure p [bar]
e
Flow Q [l/min]
240
200
180
140
100
60
20
0
p
e min
625 mA
1875 mA
1250 mA
2500 mA
Setting range max. 210 bar
NG10
All characteristic curves measured with HLP46 bei 50°C.
* see series VMY for details
4-75
VBY_K UK.INDD RH 06.09.2011
Proportional Pressure Relief Valve
Series VBY*K
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Dimensions
NG06
Mounting pattern ISO 5781-03-04-0-00
The connection
B must be locked
onto the subplate
for standard ap-
plications.
Surface finish Bolt kit
NBR FPM
BK 375 4x M5x30 DIN 912 12.9
7.6 Nm
±15%
SK-VMY-L06-N SK-VMY-L06-V
4-76
VBY_K UK.INDD RH 06.09.2011
Proportional Pressure Relief Valve
Series VBY*K
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
4
Dimensions
NG10
Mounting pattern ISO 5781-06-07-0-00
Surface finish Bolt kit
FPM
BK 389 4x M10x50 DIN 912 12.9
63 Nm
±15%
SK-VB/VM-A10V
