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Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Characteristics
The pilot operated valves are available in 4 sizes:
D31DW NG10 (standard)
D31NW NG10 (high flow)
D41VW NG16
D81VW NG25 (for port diameter up to 26 mm)
D91VW NG25 (for port diameter up to 32 mm)
D111VW NG32
All valves are piloted by a D1VW valve. Please see the
separate ordering code for valves with position control.
The minimum pilot pressure must be ensured for all op-
erating conditions of the directional valve.
Additionally spools with a P to T connection in the de-
energized position need an external pressure supply
(external inlet) or an integral check valve.
Valves with explosion proof solenoids EEx e mb ll see
catalogue HY11-3343.
Download: www.parker.com/euro_hcd - see “Literature”
D81VW
D31DW
D31NW D41VW
D81VW D111VW
Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
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Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Ordering Code
Spool
type
Series
2 position spools
Code Spool position
B
Spring offset in position “b“.
Operated in position “a“.
D
2)
Detent, operated in position “a“ or
“b“. No center or offset position.
H
Spring offset in position “a“.
Operated in position “b“.
Spool
position
Code Bore Size Feature
D31DW Ø11 mm NG10
D31NW Ø11 mm NG10 High flow
D41VW Ø20 mm NG16
D81VW Ø26 mm NG25
D91VW Ø32 mm NG25 High flow
D111VW Ø50 mm NG32
1)
Consider specific spool position.
2)
For D31NW and D111VW only pilot valve with detent available.
3)
Not for D31DW, D91VW and D111VW available.
4)
Not for spools 002, 007, 009, 014, 030, 031, 032, 054 available.
5)
To be used in combination with rectifier plugs at 120 VAC / 230 VAC
power supply.
6)
Only D31, D41, D81, D91 available.
3 position spools
D31D
D31N
D41
D81/91
D111
Code Spool type
a 0 b
001
• • • • •
002 • • • • •
003 • • • •
004
• • • • •
005 • • • •
006 • • • •
007 • • •
009
1)
• • • • •
011 • • • •
014 • • •
015 • • • •
016 • • • •
021 • • • •
022 • • • •
031 • •
032 • •
054 • • •
081 • • • •
082 • • • •
2 position spools
Code Spool type
a b
020
• • • • •
026 • • •
030 • • • • •
3 position spools
Code Spool position
C
3 positions.
Spring offset in position “0“.
Operated in position “a“ or “b“.
Standard Kolbentyp 009
E
Operated in
position “a“.
Operated in
position “b“.
2 positions.
Spring offset in position “0“.
F
Spring offset in
position “b“.
Spring offset in
position “a“.
2 positions.
Operated in position “0“.
K
Operated in
position “b“.
Operated in
position “a“.
2 positions.
Spring offset in position “0“.
M
Spring offset in
position “a“.
Spring offset in
position “b“.
2 positions.
Operated in position “0“.
R
2)
No center in offset
position.
No center in
offset position.
2 positions, detent.
Operated in position “0“ or “b“.
S
2)
No center in offset
position.
No center in
offset position.
2 positions, detent.
Operated in position “0“ or “a“.
No center in offset position.
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Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Ordering Code
Solenoid
options
Solenoid
voltage
Design
series
(not required
for ordering)
Pilot oil
supply and
drain options
Acces-
sories
Further spool types and solenoid voltages on request.
Explosion proof solenoids EEx e mb ll see catalogue HY11-3343.
Download:
www.parker.com/euro_hcd - see “Literature”
Connector
as per
EN 175301-803,
without plug
(Please order plug
separately)
Seals
Code Seals
N NBR
V FPM
Code Accessories
omit
Standard valve
w/o accessories
3A Pilot choke, meter-out
3B Pilot choke, meter-in
3C
Pilot with pressure
reducing valve
3D
6)
Stroke adjustment side B
3E
6)
Stroke adjustment side A
3F
6)
Stroke adjustment
side A and B
3R
meter-out + pressure
reducing valve
1T
meter-in + pressure
reducing valve
Code Solenoid option
omit
Standard solenoid
without options
T without manual override
Code Solenoid voltage
K 12 V =
J 24 V =
U
5)
98 V =
G
5)
205 V =
Y 110 V 50 Hz / 120 V 60 Hz
T 230 V 50 Hz / 240 V 60 Hz
Code Inlet Outlet
1 Internal External
2 External External
3
3)
Integral
check valve
External
4
4)
Internal Internal
5 External Internal
6
3)
Integral
check valve
Internal
W
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Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Ordering Code
Spool
type
Series
1)
Consider specific spool position.
2)
Not for D31NW.
3)
Not for D31DW, D91VW and D111VW available.
4)
Not for spools 002, 007, 009, 014, 030 available.
5)
To be used in combination with rectifier plugs at 120 VAC / 230 VAC power supply.
6)
For hydraulic presses according to the safety regulations EN 693, solenoid option “T“ (without manual override) and accessories “I4N“, “I5N“
or “I6N“ (start position monitored) are required.
7)
The plug M12 x 1 for the position control is not included. The monitor switch has to be located on the side to which the spool moves from the
spring offset position. For 4/3-way valves two switches are required.
Spool
position
Pilot Operated Directional Control Valves
Series D31DW, D*1VW Induct. Position Control
3 position spools
D31D
D31N
D41
D81/91
D111
Code Spool type
a 0 b
001 • • • • •
002 • • • • •
003 • • • •
004 • • • • •
007 • •
009
1)
• • • • •
011 • • • •
014 • •
015 • • • •
021 • • • •
022 • • • •
2 position spools
Code Spool type
a b
020 • • • • •
026 • • •
030 • • • • •
Code Bore Size Feature
D31DW Ø11 mm NG10
D31NW Ø11 mm NG10 High flow
D41VW Ø20 mm NG16
D81VW Ø26 mm NG25
D91VW Ø32 mm NG25 High flow
D111VW Ø50 mm NG32
2 position spools
Code Spool position
B
Spring offset in position “b“.
Operated in position “a“.
H
Spring offset in position “a“.
Operated in position “b“.
3 position spools
Code Spool position
C
3 positions.
Spring offset in position “0“.
Operated in position “a“ or “b“.
Standard Kolbentyp 009
E
Operated in
position “a“.
Operated in
position “b“.
2 positions.
Spring offset in position “0“.
F
2)
Spring offset in
position “b“.
Spring offset in
position “a“.
2 positions.
Operated in position “0“.
K
Operated in
position “b“.
Operated in
position “a“.
2 positions.
Spring offset in position “0“.
M
2)
Spring offset in
position “a“.
Spring offset in
position “b“.
2 positions.
Operated in position “0“.
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Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Ordering Code
Pilot oil
supply and
drain options
Code Solenoid voltage
K 12 V =
J 24 V =
U
5)
98 V =
G
5)
205 V =
Code Inlet Outlet
1 Internal External
2 External External
3
3)
Integral
check valve
External
4
4)
Internal Internal
5 External Internal
6
3)
Integral
check valve
Internal
Code Solenoid option
omit
Standard solenoid
without options
T
6)
without manual override
Solenoid
options
Solenoid
voltage
Design
series
(not required
for ordering)
Acces-
sories
Connector
as per
EN 175301-803,
without plug
(Please order plug
separately)
Seals
Code Seals
N NBR
V FPM
Code Spool position Position control
I3N
7)
C
End position
monitored, side A
and B
I6N
7)
Start position
monitored, side A
and B
I2N
7)
C, B, E, F (all spools)
C, K, M (spool 9)
End position
monitored, side B
I5N
7)
Start position
monitored, side B
I1N
7)
C, H, K, M (all spools)
C, E, F (spool 9)
End position
monitored, side A
I4N
7)
Start position
monitored, side A
Attention:
The adjustment of the position control is factory set and sealed.
Replacement and repairs can only be undertaken by the manufacturer.
W
Pilot Operated Directional Control Valves
Series D31DW, D*1VW Induct. Position Control
Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
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Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Technical Data
General
Design Directional spool valve
Actuation Solenoid
Series
D31DW D31NW D41VW D81/91VW D111VW
NG10 NG10 NG16 NG25 NG32
6.0 / 6.6 7.6 / 8.1 9.7 / 10.3 17.9 / 18.6 67.4 / 68.0
DIN 24340 A10 DIN 24340 A10 DIN 24340 A16 DIN 24340 A25 DIN 24340 A32
ISO 4401 ISO 4401 ISO 4401 ISO 4401 ISO 4401
NFPA D05 NFPA D05 NFPA D07 NFPA D08 NFPA D10
Size
Weight (1/ 2 solenoids) [kg]
Mounting interface
CETOP RP 121-H
Mounting position unrestricted, preferably horizontal
Ambient temperature [°C]
[°C]
-25...+60 (without inductive position control)
0...+60 (with inductive position control)
MTTF
D
value [years] 75
Hydraulic
Max. operating pressure
[bar]
[bar]
Pilot drain internal: P, A B, X: 350; T, Y: 105
Pilot drain external: P, A B, T, X: 350; Y: 105
Fluid Hydraulic oil according to DIN 51524
Fluid temperature [°C]
[°C]
-20 ... +70 (NBR: -25...+70), (without inductive position control)
0...+70 (with inductive position control)
Viscosity permitted [cSt] / [mm²/s] 2.8...400
Viscosity recommended [cSt] / [mm²/s] 30...80
Filtration ISO 4406 (1999); 18/16/13
Flow max. [l/min]
150 170 300 700 2000
up to 100* 72...422* up to 200* up to 800* up to 5000*
n.a. see p/Q diagram see p/Q diagram see p/Q diagram n.a.
5 7 5
Leakage at 350 bar (per flow path) [ml/min]
*depending on spool
Opening pressure integral check valve
[bar]
Minimum pilot supply pressure [bar]
Static / Dynamic
Step response at 95 % [ms] Energized / De-energized
DC solenoids Pilot pressure 50 bar
60 / 40 50 / 60 95 / 65 150 / 170 470 / 390
55 / 40 50 / 60 75 / 65 110 / 170 320 / 390
55 / 40 50 / 50 60 / 65 90 / 170 210 / 390
55 / 40 50 / 50 60 / 65 85 / 170 200 / 390
40 / 30 30 / 50 75 / 55 130 / 155 450 / 375
35 / 30 30 / 50 65 / 55 90 / 155 300 / 375
35 / 30 30 / 50 40 / 55 70 / 155 190 / 375
35 / 30 30 / 50 40 / 55 65 / 155 180 / 375
100 bar
250 bar
350 bar
AC solenoids Pilot pressure 50 bar
100 bar
250 bar
350 bar
Electrical characteristics
Duty ratio 100 % ED; CAUTION: coil temperature up to 150 °C possible
Protection class IP 65 in accordance with EN 60529
(with correctly mounted plug-in connector)
Code K J U G Y T
Supply voltage / ripple [V] 12 V = 24 V = 98 V = 205 V =
110 V at 50 Hz/ 230 V at 50 Hz/
120 V at 60 Hz 240 V at 60 Hz
Tolerance supply voltage [%] ±10 ±10 ±10 ±10 ±5 ±5
Current consumption hold [A] 2.72 1.29 0.33 0.13 0.58 / 0.49 0.31 / 0.26
Current consumption in rush [A] 2.72 1.29 0.33 0.13 2.1 / 2.0 1.05 / 1.0
Power consumption hold [W] 32.7 31 31.9 28.2 64 / 59 VA 68 / 62 VA
Power consumption in rush [W] 32.7 31 31.9 28.2 231 / 240 VA 231 / 240 VA
Solenoid connection Connector as per EN 175301-803, solenoid identification as per ISO 9461.
Wiring min. [mm²] 3 x 1.5 recommended
Wiring length max. [m] 50 recommended
With electrical connections the protective conductor (PE W) must be connected according to the relevant regulations.
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Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Electrical characteristics of position control M12x1
Position Control
Protection class IP 65 in accordance with EN 60529
(with correctly mounted plug-in connector)
Ambient temperature [°C] 0...+50
Supply voltage Us / ripple [V] 18...42 / 10 %
Current consumption without load [mA] ≤ 30
Max. output current per channel, ohmic [mA] 400
Min. output load per channel, ohmic [kOhm] 100
Max. output drop at 0.2 A [V] ≤ 1.1
Max. output drop at 0.4 A [V] ≤ 1.6
EMC EN50081-1 / EN50082-2
Max. tolerance ambient field strength [A/m] <1200
Min. distance to next AC solenoid [m] >0.1
Interface M12x1 acc. to IEC 61076-2-101
Wiring min. [mm²] 5 x 0.25 brad shield recommended
Wiring length max. [m] 50 recommended
M12 pin assignment
1 Us 18...42V
2 Out B: normally open
3 0V
4 Out A. normally closed
5 Earth ground
Definitions
Start position monitored:
The valve is de-energized. The inductive switch gives a
signal at the moment when the spool leaves the spring
offset position (below 15 % spool stroke).
At the switching point the spool is located within the closed
position. It is secured that only the flow paths of the offset
position are granted.
Please order plug M12 x 1 separately (see accessories, plug M12x1; order no.: 5004109).
End position monitored:
The inductive switch gives a signal before the end position
is reached (above 85 % spool stroke).
Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
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Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Flow Curve Diagrams
D31DW and D41VW
The flow curve diagrams show the flow versus pressure
drop curves for all spool types. The relevant curve number
for each spool type, operating position and flow direction
is given in the tables below.
All characteristic curves measured with HLP46 at 50 °C.
Spool
Code
Curve number
P-A P-B P-T A-T B-T
D3 D4 D3 D4 D3 D4 D3 D4 D3 D4
001 4 1 4 1 – – 3 4 3 5
002 2 1 3 2 3 6 3 4 4 6
003 2 1 4 2 – – 1 5 2 6
004 4 1 3 1 – – 2 5 3 5
005 1 2 4 2 – – 2 3 3 5
006 2 1 3 2 – – 3 3 4 6
007 4 1 2 1 5 6 2 4 2 5
009 2 2 2 9 8 8 5 7 6 10
011 3 1 2 1 – – 3 4 3 5
014 2 1 4 1 5 6 2 4 3 5
015 4 1 2 2 – – 2 4 2 6
016 4 2 1 2 – – 1 3 2 5
020 4 3 4 5 – – 4 3 4 5
021 3 2 4 8 – – 2 2 – –
022 5 8 2 2 – – – – 4 3
026 3 3 3 5 – – – – – –
030 4 2 3 3 – – 3 6 3 7
031 3 – 4 – – – 1 – – –
032 5 – 2 – – – – – 2 –
054 – 2 – 3 – – – 6 – 7
081 6 – 6 – – – 7 – 7 –
082 7 – 6 – – – 5 – 7 –
Spool
Code
Curve number
P-A P-B P-T A-T B-T
001 3 3 – 2 5
002 3 3 7 4 3
003 2 3 – 4 4
004 2 3 – 4 4
005 2 4 – 1 4
006 8 9 – 7 9
009 4 6 6 4 10
011 3 3 – 2 4
015 2 2 – 1 4
016 4 3 – 2 4
020 6 4 – 3 6
021 – 7 – 8 –
022 4 – – 9 –
030 5 3 – 2 5
D31NW
D31DW
D41VW
D31NW
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Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Flow curve D31NW
Spool
Code
Curve number
P-A P-B P-T A-T B-T
D8/9 D11 D8/9 D11 D8/9 D11 D8/9 D11 D8/9 D11
001 3 5 2 5 – – 3 4 5 1
002 2 5 1 5 1 5 3 4 5 1
003 4 – 2 – – – 3 – 6 –
004 4 5 3 5 – – 3 4 5 1
005 1 – 2 – – – 4 – 5 –
006 2 – 2 – – – 4 – 6 –
007 3 – 1 – 7 – 3 – 5 –
009 4 3 8 3 9 2 4 3 10 1
011 3 – 2 – – – 3 – 5 –
014 1 – 2 – 8 – 3 – 5 –
015 3 – 3 – – – 4 – 5 –
016 3 – 3 – – – 4 – 5 –
020 6 5 5 5 – – 6 3 8 1
021 5 – 10 – – – 3 – – –
022 10 – 5 – – – – – 5 –
026 6 – 5 – – – – – – –
030 3 5 2 5 – – 3 4 5 1
054 4 5 3 5 – – 3 4 5 1
D81/D91VW and D111VW
Flow curve D81VWFlow curve D41VW
Flow Curves / Integral Check Valve
Integral check valve in the P port
Mounting an integral check valve in the P port is necessary to build up pilot pressure for valves with P to T connection
and internal pilot oil supply. The pressure difference at the integral check valve (see performance curves) is to be
added to all flow curves of the P-port of the main valve. Directional valves with an integral check valve are available
for the series D31NW, D41VW and D81VW.
All characteristic curves measured with HLP46 at 50 °C.
D81/D91VW
D111VW
Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
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Parker Hannifin Corporation
Hydraulics Group
2
open, closed
Pilot oil
Inlet
Outlet
AB C
internal
external
internal
external
external
external
internal
internal
Orifice Ø1.5
Orifice Ø1.5
Orifice Ø1.5
Orifice Ø1.5
M6
1/16
DIN906
NPTF
M6 DIN906
B
A
C
P
T
P
XY
A
T
B
AC B
a
b0
a
b
0
All orifice sizes for standard valves.
D31DW
D41VW
D81/91VW
D111VW
Pilot Oil Options
D31NW
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Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
D31NW
Surface finish
BK385
4x M6x40
ISO 4762-12.9
13.2 Nm ±15 %
NBR: SK-D31NW-N-91
FPM: SK-D31NW-V-91
D31DW
Surface finish
BK385
4x M6x40
ISO 4762-12.9
13.2 Nm ±15 %
NBR: SK-D31DW-N-91
FPM: SK-D31DW-V-91
Dimensions
The space necessary to remove the plug per EN 175301-803, design type AF is at least 15 mm.
The torque for the screw M3 of the plug has to be 0.5 to 0.6 Nm.
* Please add for each sandwich plate +40 mm (pressure reducing valve, choke valve meter-in/-out).
Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
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Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
Dimensions
The space necessary to remove the plug per EN 175301-803, design type AF is at least 15 mm.
The torque for the screw M3 of the plug has to be 0.5 to 0.6 Nm.
Surface finish
BK320
4x M10x60
2x M6x55
ISO 4762-12.9
63 Nm ±15 %
13.2 Nm ±15 %
NBR: SK-D41VW-N-91
FPM: SK-D41VW-V-91
D81VW, D91VW
Surface finish
BK360
6x M12x75
ISO 4762-12.9
108 Nm ±15 %
NBR: SK-D81VW-N-91 / SK-D91VW-N-91
FPM: SK-D81VW-V-91 / SK-D91VW-V-91
D41VW
* Please add for each sandwich plate +40 mm (pressure reducing valve, choke valve meter-in/-out).
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Pilot Operated Directional Control Valves
Series D31DW, D31NW, D*1VW
Catalogue HY11-3500/UK
Parker Hannifin Corporation
Hydraulics Group
2
D111VW
Dimensions
The space necessary to remove the plug as per EN 175301-803, design type AF is at least 15 mm.
The torque for the screw M3 of the plug has to be 0.5 to 0.6 Nm.
Surface finish
BK386
6x M20x90
ISO 4762-12.9
517 Nm ±15 %
NBR: SK-D111VW-N-91
FPM: SK-D111VW-V-91
* Please add for each sandwich plate +40 mm (pressure reducing valve, choke valve meter-in/-out).
