DIRECTIONAL
CONTROLS
E
Terminal Box Type
Plug-in Connector Type
Up to 31.5 MPa (4570 PSI), 120 L/min (31.7 U.S.GPM)
Mounting Surface : ISO 4401-AC-05-4-A, CETOP-5, NFPA-D02
No.1
Pub. EC-0403
Features
SOLENOID OPERATED
DIRECTIONAL VALVES
∗
-DSG-03-
∗∗∗
-
∗
-50/5090
3/8, Sub-plate Mounting
The products approved by CSA (Canadian Standards Association) and
the products conforming to the Low Voltage Directive 73/23/EEC
(amended by 93/68/EEC) are also available. For the details, please consult
us or your Yuken distributors.
These are epoch-making solenoid operated directional valves of high pressure, high flow which have been developed
incorporating a unique design concept into every part of the valve including the solenoid. With wet type solenoids, these
valves ensure the low noise and the long life, moreover, ensure no leakage of oil outside of the valve.
Solenoids
Solenoid Connectors (DIN connector)
The solenoid connectors are conform to the international standard ISO 4400 (Fluid power systems and components-Three-pin electrical plug connectors-
Characteristics and requirements).
AC Solenoids
50 to 60 Hz common service solenoids do not require rewiring when the applied frequency is changed.
DC Solenoids (Reputable K-series)
These DC solenoids have surge absorbers for K-series functions. The three advantages of them are as mentioned below:
R Type Solenoids
These are rectifier and surge absorber incorporated direct current solenoids which can be used by connecting directly to the AC power source. They
have, like other DC solenoids, such advantages that the sound in on-off operation is quite low and the coils are hardly burnt out even if the spool is
stuck at the half way of its changeover for contaminant particles etc. Moreover, they can be used almost permanently without being affected by a
surge voltage from the outside. Thus, they are the solenoids of high reliability and durability.
Wide Range of Models
Choose the optimum valve to meet your needs from a large selection available.
The DSG-03 50 design series solenoid operated directional valves are classified into the two basic models.
Stable Operation
With a strong magnet and spring force, the valves are tough against contamination and thus ensure a stable operation.
RQ Type Solenoids
These are solenoids having the same features as R type solenoids above plus such an additional feature that the time lag for the spool return after de-
energisation of the solenoid becomes considerably shortened.
Insulation Class of Solenoid Class H
1. Since surge voltage can be controlled to a very low figure, electric control devices, such as a computer, can be used without any interference
like noise.
2. There being no spark between contacts, the life of the relay becomes longer.
3. Time lag for spool return after de-energisation of the solenoid is very short.
Standard type.....Useable at high pressure: 31.5 MPa (4570 PSI) and high flow: 120 L/min. (31.7 U.S.GPM)
Shockless type....A noise at spool changeover and a vibration in piping can be reduced to a minimum.
1.
2.
DIRECTIONAL
CONTROLS
3.
1
2
Specifications/ Solenoid Ratings / Others
Sub-plate
Solenoid Ratings
Valve Type
Piping
Size
Sub-plate
Model Numbers
Thread
Size
Japanese Standard "JIS"
Sub-plate
Model Numbers
Thread
Size
European Design Standard
Sub-plate
Model Numbers
Thread
Size
N.American Design Standard
Approx.
Mass
kg (lbs.)
Rc 3/8DSGM-03-40 3/8 BSP.FDSGM-03-2180
3/8 NPT
3.0 (6.6)
Rc 1/2
Rc 3/4
1/2 BSP.F 1/2 NPT
3/4 NPT
3.0 (6.6)
4.7 (10.4)
3/8
Mounting Bolts
Descriptions Soc. Hd. Cap Screw (4 pcs.) Tightening Torque
Japanese Standard "JIS"
European Design Standard
N. American Design Standard
M6
×
35 Lg.
1/4-20 UNC
×
1-1/2 Lg.
12 - 15 Nm
(106 - 133 in. 1bs.)
Specificatios
Valve
Type
AC
Model
Numbers
Max. Flow
L/min (U.S.GPM)
Max. Operating
Pressure
MPa (PSI)
Max. T-Line
Back Pres.
MPa (PSI)
Max. Changeover
Frequency
-1
min (Cycles/Min)
DC, R, RQ
Type of Solenoid
Approx. Mass kg(1bs.)
DSG-03-3C
∗
-
∗
-50/5090
DSG-03-2D2-
∗
-50/5090
DSG-03-2B
∗
-
∗
-50/5090
S-DSG-03-3C
∗
-
∗
-50/5090
S-DSG-03-2B2-
∗
-50/5090
Standard
Type
Shockless
Type
120 (31.7)
120 (31.7)
31.5 (4570)
Spool Type 60 Only
25 (3630)
16 (2320)
16 (2320)
16 (2320)
240
R Type Sol. Only
120
120
2.9 (6.4)
3.6 (7.9) 5 (11)
3.6 (7.9)
5 (11)
3.6 (7.9)
Electric source
Coil
Type
Frequency
(Hz)
Source Rating
Voltage (V)
Serviceable Range Inrush (A) Holding (A) Power (W)
Current & Power at Rated Voltage
100
100
110
120
200
200
220
240
12
24
100
100
200
100
50
60
50
60
50
60
50
60
50/60
50/60
A100
A120
A200
A240
D12
D24
D100
R100
R200
RQ100
80 - 110
90 - 120
96 - 132
108 - 144
160 - 220
180 - 240
192 - 264
216 - 288
10.8 - 13.2
21.6 - 26.4
90 - 110
90 - 110
180 - 220
5.37
4.57
5.03
4.48
3.81
2.69
2.29
2.52
2.24
1.91
0.90
0.63
0.77
0.75
0.52
0.45
0.31
0.38
0.37
0.26
3.16
1.57
0.38
0.43
0.21
0.4390 - 110
AC
DC (K Series)
AC
DC Rectified (R)
AC
DC Rectified (RQ)
(Quick Return)
Standard
Type
Shockless
Type
38
38
38
1/2
3/4 3/4 BSP.F
DSGM-03-2190
DSGM-03X-40
DSGM-03Y-40
DSGM-03X-2180
DSGM-03Y-2180
DSGM-03X-2190
DSGM-03Y-2190
→
→
No.2
For socket head cap screws in the table below are included.
Sub-plates are available. Specify the sub-plate model number from the table above.
When sub-plates are not used, the mounting surface should have a good machined finish.
AC solenoid is not available in shockless type.
R or RQ type models with built-in current rectifier is recommended for shockless operation with AC power.
Inrush current in the above table show rms values at maximum stroke.
Solenoid Operated Directional Valves
DSG-03/S-DSG-03
The maximum flow means the limited flow without inducing any abnormality to the operation (changeover) of the valve. The maximum flow
differs according to the spool type and operating conditions. For details, please refer to the "List of Standard Models and Maximum Flow" on pages
5 to 9.
There are more coil types other than the above. For details, please make inquiries.
The coil type numbers in the shaded column are handled as optional extras.
In case these coils are required to be chosen, please confirm the time of
delivery with us before ordering.
DIRECTIONAL
CONTROLS
1.
2.
3.
3
2
1
1
1
1
E
Model Number Designation
F- S- DSG -03
-2 B 2 A
Special
Seals
Shockless
Type
Series
Number
Valve
Size
Number
of Valve
Positions
Spool-
Spring
Arrangement
Spool
Type
Special Two
Position Valve
Omit if not
required
-D24 -C -
∗
-50
∗
-L
Coil
Type
Manual
Override
Electrical
Conduit
Connection
Design
Number
Design
Standard
Models with
Reverse Mtg. of
Solenoid
Omit if not
required
F:
For Phosphate
Ester Type
Fluids
(Omit if not
required)
None:
Standard
Type
S:
Shockless
Type
DSG:
Solenoid
Operated
Directional
Valve
03 50
3:
Three
Positions
2:
Two
Positions
2:
Two
Positions
3:
Three
Positions
C:
Spring
Centred
D:
No-Spring
Detented
B:
Spring
Offset
C:
Spring
Centred
B:
Spring
Offset
A
B
A
B
None:
Terminal
Box Type
N:
Plug-in
Connector
Type
N1:
Plug-in
Connector
Type
with
Indicator
Light
(Option)
None:
Japanese
Std. "JIS"
90:
N.American
Design Std.
None:
Japanese
Std. "JIS"
and
European
Design
Std.
90:
N. American
Design
Std.
L
L
None:
Manual
Override
Pin
C :
Push
Button
and
Lock Nut
(Option)
3
40
60
10
12
2,
4,
9,
11,
2
3 2,
8
2
2
4
AC:
A100
A120
A200
A240
DC:
D12
D24
D100
R:
(AC
DC)
R100
R200
RQ:
RQ100
(AC
DC)
5,
→
→
DC:
D12
D24
D100
R:
(AC
DC)
R100
R200
RQ:
RQ100
(AC
DC)
→
→
No.3
Solenoid Operated Directional Valves
DSG-03 / S-DSG-03
Model Number Designation
In the table above, the symbols or numbers highlighted with shade represent the optional
extras. The valves with model number having such optional extras are handles as options,
therefore, please confirm the time of delivery with us before ordering.
In case of the special two position valve, please refer to page 10 for details.
N is not available for RQ-type solenoids.
N1 is not available for R and RQ-type solenoids.
DIRECTIONAL
CONTROLS
Options / Hydraulic Fluids / Instructions
Water containing fluids
Synthetic fluids
Petroleum base oils
Use water-glycol fluids or W/O emulsion fluids.
Use phosphate ester or polyol ester fluid.When phosphate ester fluid is used,
prefix "F-" to the model number because the special seals (fluororubber) are required to be used.
Use fluids equivalent to ISO VG32 or VG46.
0
50
120
150
1
2
3
4
0
0 100 200 300 400 500
0
10
20
30
MPa
PSI
1bf.
Tank Line Back Pressure
N
Operating
Force
SOL b
Plug-in Connector
with Solenoid
Indicator Light
Lock Nut
Push Button
SOL aSOL b
L'
L
No.4
Fluid Types
Hydraulic Fluids
Any type of hydraulic fluid, listed in the table below can be used.
Note: For use with hydraulic fluids other than those listed above, please consult your Yuken representatives in advance.
Always be sure to use hydraulic fluids within the stipulated conditions shown below:
2
Viscosity: 15 to 400 mm /s (77 to 1800 SSU), Temperature: -15 to +70
°
C (5 to 160
°
F)
Due caution must be paid to maintaining control over contamination of the hydraulic fluids which may otherwise lead
to breakdowns and shorten the life of the valve. Please maintain the degree of contamination within NAS 1638-Grade
12. Use 25
μ
m or finer line filter.
Control of Contamination
Recommended Viscosity and Oil Temperatures
Solenoid Operated Directional Valves
DSG-03/S-DSG-03
Push Button with Lock Nut
Options
Can be used for manual changeover of spool. The push button
can be locked in the pressed condition.
Plug-in Connector with Solenoid Indicator Light
These are the indicator light incorporated plug-in connector type
solenoids. Energisation or de-energisation of the solenoid can
be easily identified with the incorporated indicator light.
Mounting Posture
Instructions
In case No-spring detent type valves are used in the solenoid
de-energised state, install the valve in such a way that the axis
L-L' becomes horizontal to get the detent effect firmly. For the
valve types other than the above, there are no restrictions on
the mounting posture.
Solenoid Energisation
For double solenoid valves do not energise both at the same
time as it will result in coils burning out.
Valve Tank Port
Avoid connecting the valve tank port to a line with possible
surge pressure.
Piping end of tank line should be submerged in oil.
Shockless Type
In order to benefit from a shockless operation, it is necessary
to fill the tank line with operating oil.
Only after the tank line has been filled with operating oil, start
the operation of the valve on a regular basis.
Operating Force for Manual Override Push Pin
Please note that as the back pressure of the tank line rises, the
manual override push pin turns hard to operate (see the graph
below).
(Example)
Valve: DSG-03-3C2-A100-5002
Sub-plate: DSGM-03-4002
The valve is supplied with 4 pcs. hexagon
socket head cap screws M8
×
38 Lg.
M8 Mounting Bolts.
As the mounting bolts, M6 socket head cap screws are used for
the standard valves, however, M8 socket head cap screws are also
available for supply as optional extras. In case the M8 screws are
required, suffix "02" to the design number of both valve and sub-
plate model number like below.
DIRECTIONAL
CONTROLS
E
List of Standard Models
AB
T
P
b
A
B
T
P
b
A
B
T
P
b
a
A
B
TP
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
A
B
P
T
PT
A
B
PT
A
B
60 60 40 35
100(62)
80(42)
100(79)
92(55)
100(35)
45(21)
100(62)
73(36)
100(72)
89(46)
87(15)
34(12)
100(44)
63(34)
100(64)
78(28)
94(37)
51(33)
100(59)
70(27)
30
100
60
28
100
60
28
100
60
28
60
100(70)
90(49)
100(81)
100(81)
100(58)
90(47)
100(62)
62(40)
100(48)
53(30)
100(81)
100(81)
100(33)
50(26)
100(39)
47(26)
96(28)
34(19)
100(81)
100(81)
76(22)
28(18)
84(21)
27(16)
65(24)
26(15)
100(81)
100(81)
46(19)
22(15)
48(18)
20(12)
100(55)
60(38)
100(80)
80(60)
100(55)
60(38)
100(36)
47(24)
100(65)
70(46)
100(36)
47(24)
60(21)
23(14)
85(35)
51(32)
60(21)
23(14)
34(16)
17(11)
62(28)
45(25)
34(16)
17(11)
34
57
26
24
57
19
20
57
18
19
57
16
40 40 30 28
26
100
60
21
100
60
18
100
60
16
60
100(70)
90(49)
100(81)
100(81)
100(58)
90(47)
100(62)
62(40)
100(48)
53(30)
100(81)
100(81)
100(33)
50(26)
100(39)
47(26)
96(28)
34(19)
100(81)
100(81)
76(22)
28(18)
84(21)
27(16)
65(24)
26(15)
100(81)
100(81)
46(19)
22(15)
48(18)
20(12)
100(55)
60(38)
100(80)
80(60)
100(55)
60(38)
100(36)
47(24)
100(65)
70(46)
100(36)
47(24)
60(21)
23(14)
85(35)
51(32)
60(21)
23(14)
34(16)
17(11)
62(28)
45(25)
34(16)
17(11)
100
100
100
90
80
100
30
70
100
80
100
90
100
30
100
100
30
70
100
100
90
100
90
80(65)
75(20)
80(25)
30(15)
100(75)
100(25)
80(30)
30(25)
80(20)
20(15)
DSG-03-2D2
DSG-03-2B2
DSG-03-2B3
DSG-03-2B8
DSG-03-3C2
DSG-03-3C3
DSG-03-3C4
DSG-03-3C40
DSG-03-3C5
DSG-03-3C60
DSG-03-3C9
DSG-03-3C10
DSG-03-3C11
DSG-03-3C12
10
MPa
16
MPa
25
MPa
31.5
MPa
A
B
A
P
T
B
P APB
100
100
100
100
100
100
100
100 100 100
100
90
80
100
30
70
100
80
100
90
90(30)
40(20)
90(20)
20(15)
100(75)
100(90)
100
100(75)
100(90)
100(75)
100(90)
100(75)
100(90)
( 9 )61
( 9 )15
( 7 )49
( 6 )11
[Port "A" Blocked][Port "B" Blocked]
Max. Flow L/min
10
MPa
16
MPa
25
MPa
31.5
MPa
10
MPa
16
MPa
25
MPa
31.5
MPa
Graphic
Symbols
Model
Numbers
Spool-Spring Arrangement
No. of Valve Positions
Spring Centred
Three Positions
No-Spring
Detented
Spring Offset
Two Positions
No.5
Solenoid Operated Directional Valves
DSG-03-
∗∗∗
-A
∗
(Example)
100(75)
100
The maximum flow rate is
constant regardless of 50 Hz or
60 Hz and of any voltage
variants within the serviceable
voltage
100(25)
50Hz, At rated voltage
Notes : The relation between the maximum flow in the table above and the frequency/voltage (within the serviceable voltage) is as shown below.1.
2.
60Hz, At rated voltage
50Hz, At minimum serviceable voltage
(80% of rated voltage)
60Hz, At minimum serviceable voltage
(90% of rated voltage)
The valve models with a mark are handled as
Options. If you choose such valves, check the time
of delivery beforehand.
List of Standard Models and The Maximum Flow
Models with AC Solenoids: DSG-03-
∗∗∗
-A
∗
For the maximum flow rate in P
→
T of the valves with a mark, please see page 9.
DIRECTIONAL
CONTROLS
List of Standard Models
AB
T
P
b
A
B
T
P
b
A
B
T
P
b
a
A
B
TP
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
A
B
P
T
PT
A
B
PT
A
B
DSG-03-2D2
DSG-03-2B2
DSG-03-2B3
DSG-03-2B8
DSG-03-3C2
DSG-03-3C3
DSG-03-3C4
DSG-03-3C40
DSG-03-3C5
DSG-03-3C60
DSG-03-3C9
DSG-03-3C10
DSG-03-3C11
DSG-03-3C12
1450
PSI
2320
PSI
3630
PSI
4570
PSI
A
B
A
P
T
B
P APB
[Port "A" Blocked][Port "B" Blocked]
Max. Flow U.S.GPM
Graphic
Symbols
Model
Numbers
Spool-Spring Arrangement
No. of Valve Positions
Spring Centred
Three Positions
No-Spring
Detented
Spring Offset
Two Positions
26.4
23.8
21.1
26.4
7.9
18.5
26.4
21.1
26.4
23.8
1450
PSI
2320
PSI
3630
PSI
4570
PSI
1450
PSI
2320
PSI
3630
PSI
4570
PSI
26.4
23.8
21.1
26.4
7.9
18.5
26.4
21.1
26.4
23.8
26.4
23.8
26.4
23.8
26.4
7.9
18.5
26.4
7.9
26.4
26.4 26.4
26.4 26.4 26.4 26.4 10.6 10.6 7.9 7.4 10.6 9.215.915.9
9.0
15.1
6.9
6.3
15.1
5.0
5.3
15.1
4.8
5.0
15.1
4.2
6.9 5.5 4.8 4.2 7.9 7.4 7.4 7.4
26.4 26.4 26.4 26.4 26.4 26.4
15.9 15.9 15.9 15.9 15.9 15.9 15.9 15.9
21.1 (17.2)
19.8 (5.3)
21.1 (6.6)
7.9 (4.0)
26.4 (19.8)
26.4 (6.6)
26.4 (18.5)
23.8 (12.9)
26.4 (21.4)
26.4 (21.4)
26.4 (15.3)
23.8 (12.4)
26.4 (16.4)
16.4 (10.6)
26.4 (12.7)
14.0 (7.9)
26.4 (21.4)
26.4 (21.4)
26.4 (8.7)
13.2 (6.9)
26.4 (10.3)
12.4 (6.9)
25.4 (7.4)
9.0 (5.0)
26.4 (21.4)
26.4 (21.4)
20.1 (5.8)
7.4 (4.8)
22.2 (5.5)
7.1 (4.2)
17.2 (6.3)
6.7 (4.0)
26.4 (21.4)
26.4 (21.4)
12.2 (5.0)
5.8 (4.0)
12.7 (4.8)
5.3 (3.2)
26.4 (18.5)
23.8 (12.9)
26.4 (21.4)
26.4 (21.4)
26.4 (15.3)
23.8 (12.4)
26.4 (16.4)
16.4 (10.6)
26.4 (12.7)
14.0 (7.9)
26.4 (21.4)
26.4 (21.4)
26.4 (8.7)
13.2 (6.9)
26.4 (10.3)
12.4 (6.9)
25.4 (7.4)
9.0 (5.0)
26.4 (21.4)
26.4 (21.4)
20.1 (5.8)
7.4 (4.8)
22.2 (5.5)
7.1 (4.2)
17.2 (6.3)
6.7 (4.0)
26.4 (21.4)
26.4 (21.4)
12.2 (5.0)
5.8 (4.0)
12.7 (4.8)
5.3 (3.2)
21.1 (7.9)
7.9 (6.6)
21.1 (5.3)
5.3 (4.0)
23.8 (7.9)
10.6 (5.3)
23.8 (5.3)
5.3 (4.0)
26.4 (23.8) 26.4 (23.8) 26.4 (23.8) 26.4 (23.8)
26.4 (19.8) 26.4 (19.8) 26.4 (19.8) 26.4 (19.8)
26.4 26.4 26.4 26.4
26.4 26.4 26.4 26.4
26.4 (16.4)
21.1 (11.1)
26.4 (20.9)
24.3 (14.5)
26.4 (9.2)
11.9 (5.5)
26.4 (16.4)
19.3 (9.5)
26.4 (19)
23.5 (12.2)
23 (4.0)
9.0 (3.2)
26.4 (11.6)
16.6 (9.0)
26.4 (16.9)
20.6 (7.4)
16.1 (2.4)
4.0 (2.4)
24.8 (9.8)
13.5 (8.7)
26.4 (15.6)
18.5 (7.1)
12.9 (1.8)
2.9 (1.6)
26.4 (21.1)
21.1 (15.9)
26.4 (17.2)
18.5 (12.2)
22.5 (9.2)
13.5 (8.5)
16.4 (7.4)
11.9 (6.6)
26.4 (21.1)
21.9 (15.9)
26.4 (17.2)
18.5 (12.2)
22.5 (9.2)
13.5 (8.5)
16.4 (7.4)
11.9 (6.6)
26.4 (14.5)
15.9 (10)
26.4 (9.5)
12.4 (6.3)
15.9 (5.5)
6.1 (3.7)
9.0 (4.2)
4.5 (2.9)
26.4 (14.5)
15.9 (10)
26.4 (9.5)
12.4 (6.3)
15.9 (5.5)
6.1 (3.7)
9.0 (4.2)
4.5 (2.9)
26.4 (14.5)
15.9 (10)
26.4 (9.5)
12.4 (6.3)
15.9 (5.5)
6.1 (3.7)
9.0 (4.2)
4.5 (2.9)
26.4 (14.5)
15.9 (10)
26.4 (9.5)
12.4 (6.3)
15.9 (5.5)
6.1 (3.7)
9.0 (4.2)
4.5 (2.9)
Solenoid Operated Directional Valves
DSG-03-
∗∗∗
-A
∗
No.6
List of Standard Models and The Maximum Flow
Models with AC Solenoids: DSG-03-
∗∗∗
-A
∗
(Example)
26.4(19.8)
26.4
The maximum flow rate is
constant regardless of 50 Hz or
60 Hz and of any voltage
variants within the serviceable
voltage
26.4(6.6)
50Hz, At rated voltage
Notes : The relation between the maximum flow in the table above and the voltage (within the serviceable voltage) is as shown below.1.
2.
60Hz, At rated voltage
50Hz, At minimum serviceable voltage
(80% of rated voltage)
60Hz, At minimum serviceable voltage
(90% of rated voltage)
The valve models with a mark are handled as
Options. If you choose such valves, check the time
of delivery beforehand.
For the maximum flow rate in P
→
T of the valves with a mark, please see page 9.
DIRECTIONAL
CONTROLS
E
List of Standard Models
AB
TP
b
A
B
T
P
b
A
B
T
P
b
a
A
B
TP
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
TP
b
A
B
P
T
PT
A
B
PT
A
B
120
120
120
120
50
120
120
120
120
120
DSG-03-2D2
DSG-03-2B2
DSG-03-2B3
DSG-03-2B8
DSG-03-3C2
DSG-03-3C3
DSG-03-3C4
DSG-03-3C40
DSG-03-3C5
DSG-03-3C60
DSG-03-3C9
DSG-03-3C10
DSG-03-3C11
DSG-03-3C12
10
MPa
16
MPa
25
MPa
31.5
MPa
A
B
A
P
T
B
P APB
120
120
120
120
50
120
120
120
120
120
[Port "A" Blocked][Port "B" Blocked]
Max. Flow L/min
10
MPa
16
MPa
25
MPa
31.5
MPa
10
MPa
16
MPa
25
MPa
31.5
MPa
Graphic
Symbols
Model
Numbers
Spool-Spring Arrangement
No. of Valve Positions
Spring Centred
Three Positions
No-Spring
Detented
Spring Offset
Two Positions
120
65
120
The maximum flow rate is constant regardless of any
voltage variants within the serviceable voltage
At rated voltage [after temperature rise and saturated]
At minimum serviceable voltage
(90% of rated voltage) [after temperature rises and saturated]
120 120 120 120 45 37 30 28 60 60 40 35
120
120
120
120
35
120
100
120
100
120
120
120
120
120
45
120
100
120
100
120
120
100
80
54
55
43
120
120
120 120
84
65
62
57
120
104
64
53
49
42
24
120
100
21
120
100
20
100
112
69
120
86
60
46
80
62
62
47
51
40
65
52
51
40
100
120
100
80
54
55
43
120
120
120 120
84
65
62
57
120
104
64
53
49
42
45
120
100
45
120
100
45
100
112
69
120
86
60
46
80
62
62
47
51
40
65
52
51
40
100
120
120
120
120
50
120
120
120
120
120
120
50
120
65
50
120
65
120
65
65
50
120 120
110
100
110
100
110
100
110
100
120 120 120 120
114
83
75
58
63
48
120
103
47
37
62
40
120
62
120 120
68
77
53
47
77
33
38
77
24
38
77
23
120
120
120
No.7
Solenoid Operated Directional Valves
∗
-DSG-03-
∗∗∗
-D
∗
/ R
∗
/ RQ
∗
(Example)
Notes ) The relation between the maximum flow in the table above and the voltage (within the serviceable voltage) is as shown below.1.
2.
The valve models with a mark are handled as
Options. If you choose such valves, check the time
of delivery beforehand.
List of Standard Models and The Maximum Flow
Models with DC Solenoids: DSG-03-
∗∗∗
-D
∗
Models with R Type Solenoids: DSG-03-
∗∗∗
-R
∗
Models with RQ Type Solenoids: DSG-03-
∗∗∗
-RQ100
∗
For the maximum flow rate in P
→
T of the valves with a mark, please see page 9.
DIRECTIONAL
CONTROLS
List of Standard Models
AB
TP
b
A
B
T
P
b
A
B
T
P
b
a
A
B
TP
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
T
P
b
a
AB
TP
b
A
B
P
T
PT
A
B
PT
A
B
31.7
31.7
31.7
31.7
13.2
31.7
31.7
31.7
31.7
31.7
DSG-03-2D2
DSG-03-2B2
DSG-03-2B3
DSG-03-2B8
DSG-03-3C2
DSG-03-3C3
DSG-03-3C4
DSG-03-3C40
DSG-03-3C5
DSG-03-3C60
DSG-03-3C9
DSG-03-3C10
DSG-03-3C11
DSG-03-3C12
1450
PSI
2320
PSI
3630
PSI
4570
PSI
A
B
A
P
T
B
P APB
[Port "A" Blocked][Port "B" Blocked]
Max. Flow U.S. GPM
Graphic
Symbols
Model
Numbers
Spool-Spring Arrangement
No. of Valve Positions
Spring Centred
Three Positions
No-Spring
Detented
Spring Offset
Two Positions
31.7
31.7
31.7
31.7
13.2
31.7
31.7
31.7
31.7
31.7
31.7 31.7
31.7
31.7
31.7
31.7
13.2
31.7
31.7
31.7
31.7
31.7
31.7
13.2
31.7
31.7
31.7
31.7
31.7
9.2
31.7
26.4
31.7
26.4
31.7
6.3 5.5 5.3 11.9 11.9 11.9 11.9
31.7
26.4
31.7
26.4
26.4
31.7
26.4
31.7
26.4
26.4
31.7
26.4
26.4 26.4
31.7
26.4
31.7
29.6
18.2
31.7
22.7
15.9
12.2
21.1
16.4
16.4
12.4
13.5
10.6
17.2
13.7
13.5
10.6
29.6
18.2
31.7
22.7
15.9
12.2
21.1
16.4
16.4
12.4
13.5
10.6
17.2
13.7
13.5
10.6
31.7 31.7
31.7
17.2
17.2
13.2
17.2
13.2
31.7
17.2
31.7 31.7 11.9 9.8 7.9 7.4 15.9 15.9 10.6 9.2
31.7
31.7
31.7
27.5
22.2
17.2
16.4
15.1
16.9
14
12.9
11.1
31.7
26.4
21.1
14.3
14.5
11.4
31.7 31.7 31.7
31.7
31.7
27.5
22.2
17.2
16.4
15.1
16.9
14
12.9
11.1
31.7
26.4
21.1
14.3
14.5
11.4
31.7 31.7
31.7
31.7
31.7
31.7
29.1
26.4
31.7 31.7 31.7 31.7 31.7
31.7
31.7
29.1
26.4
29.1
26.4
29.1
26.4
31.7 31.7
30.1
21.9
31.7
16.4
19.8
15.3
16.4
10.6
16.6
12.7
31.7
27.2
12.4
9.8
18
20.3
14
10
20.3
6.3
10
20.3
6.1
12.4
20.3
8.7
1450
PSI
2320
PSI
3630
PSI
4570
PSI
1450
PSI
2320
PSI
3630
PSI
4570
PSI
Solenoid Operated Directional Valves
No.8
List of Standard Models and The Maximum Flow
(Example)
Notes ) The relation between the maximum flow in the table above and the voltage (within the serviceable voltage) is as shown below.1.
2.
The valve models with a mark are handled as
Options. If you choose such valves, check the time
of delivery beforehand.
∗
-DSG-03-
∗∗∗
-D
∗
/ R
∗
/ RQ
∗
Models with DC Solenoids: DSG-03-
∗∗∗
-D
∗
Models with R Type Solenoids: DSG-03-
∗∗∗
-R
∗
Models with RQ Type Solenoids: DSG-03-
∗∗∗
-RQ100
∗
22.2
17.2
31.7
The maximum flow rate is constant regardless of any
voltage variants within the serviceable voltage
At rated voltage [after temperature rise and saturated]
At minimum serviceable voltage
(90% of rated voltage) [after temperature rises and saturated]
For the maximum flow rate in P
→
T of the valves with a mark, please see page 9.
DIRECTIONAL
CONTROLS
E
Max. Flow of Centre By-Pass / List of Shockless Models
PT
A
B
PT
A
B
A
B
P
T
a
b
P
T
AB
a
b
P
T
AB
A
B
T
P
b
P
T
AB
b
a
P
T
AB
b
a
P
T
AB
b
a
Spring
Centred
Spring
Offset
Three
Positions
Two
Positions
S-DSG-03-3C2
S-DSG-03-3C4
S-DSG-03-2B2
P A
[Port "B" Blocked]
P B
A
P
T
B
B
A
Graphic
Symbols
Model
Numbers
Spool-
Spring
Arrange-
ment
No. of
Valve
Positions
Max. Flow L/min (U.S.GPM)
[Port "A" Blocked]
120 (31.7)
120 (31.7)
120 (31.7)
120 (31.7)
120 (31.7)
120 (31.7)
100 (26.4) 75 (19.8)
10 MPa
(1450 PSI)
5 MPa
(730 PSI)
16 MPa
(2320 PSI)
10 MPa
(1450 PSI)
5 MPa
(730 PSI)
16 MPa
(2320 PSI)
10 MPa
(1450 PSI)
5 MPa
(730 PSI)
16 MPa
(2320 PSI)
120 (31.7)
120 (31.7)
120 (31.7)
105 (27.7)
120 (31.7)
100 (26.4)
75 (19.8)
65 (17.2)
75 (19.8)
65 (17.2)
120 (31.7)
105 (27.7)
120 (31.7)
100 (26.4)
75 (19.8)
65 (17.2)
75 (19.8)
65 (17.2)
105 (27.7)
80 (21.1)
120 (31.7)
120 (31.7)
120 (31.7) 120 (31.7)39 (10.3) 39 (10.3) 39 (10.3)
85 (22.5)
70 (18.5)
DSG-03-3C3-A
∗
DSG-03-3C3-D
∗
/R
∗
/RQ100
DSG-03-3C5-A
∗
DSG-03-3C5-D
∗
/R
∗
/RQ100
DSG-03-3C60-A
∗
DSG-03-3C60-D
∗
/R
∗
/RQ100
Model Numbers
Graphic
Symbols
Max. Flow L/min (U.S.GPM)
10 MPa
(1450 PSI)
16 MPa
(2320 PSI)
25 MPa
(3630 PSI)
31.5 MPa
(4570 PSI)
100 (26.4)
120 (31.7)
26 (6.9)
35 (9.2)
84 (22.2)
68 (18.0)
100 (26.4)
120 (31.7)
21 (5.5)
24 (6.3)
52 (13.7)
65 (17.2)
100 (26.4)
120 (31.7)
18 (4.8)
21 (5.5)
52 (13.7)
61 (16.1)
100 (26.4)
120 (31.7)
16 (4.2)
20 (5.3)
No.9
Solenoid Operated Directional Valves
DSG-03 / S-DSG-03
(Example)
Maximum Flow of Centre By-Pass
Models with DC Solenoids: S-DSG-03-
∗∗∗
-D
∗
120 (31.7)
80 (21.1)
120 (31.7)
The maximum flow rate is constant regardless of any
voltage variants within the serviceable voltage
At rated voltage
[after temperature rise and saturated]
At minimum serviceable voltage
(90% of rated voltage)
[after temperature rises and saturated]
List of Shockless Models and The Maximum Flow
Note: The relation between the maximum flow in the table above and the voltage (within the serviceable voltage) is as shown below.
L/min U.S.GPM
In valve type 3C3, 3C5 and 3C60, in case where the actuator is put on in between the cylinder ports A and B as illustrated
below and where the actuator moves and suspended at its stroke end and where the valve is then shifted to the neutral
position in the suspended state of the actuator, the maximum flow rates available are those as shown as the table below
regardless of any voltage in the range of serviceable voltage.
Models with R Type Solenoids: S-DSG-03-
∗∗∗
-R
∗
Models with RQ Type Solenoids: S-DSG-03-
∗∗∗
-RQ100
DIRECTIONAL
CONTROLS
Reverse Mounting of Solenoid
A
B
P
T
b
B
A
T
P
a
AB
P
T
b
B
A
T
P
a
∗
DSG-03-2B
∗
B
DSG-03-2B2B
DSG-03-2B3B
DSG-03-2B4B
DSG-03-2B60B
DSG-03-2B10B
(S-) DSG-03-2B
∗
A
(S-) DSG-03-2B2A
Model Numbers Model Numbers
Standard
Mtg. Type
Reverse
Mtg. Type
Standard
Mtg. Type
Reverse
Mtg. Type
Graphic Symbols Graphic Symbols
(S-)
(S-)
Solenoid Operated Directional Valves
DSG-03- / S-DSG-03
No.10
Reverse Mounting of Solenoid
In spring offset type, it is a standard configuration that the solenoid is mounted onto the valve in the SOL b position
(side). However, in this particular spool-spring arrangement, the mounting of the solenoid onto the valve in the reverse
position -SOL a side- is also available. The graphic symbol for this reverse mounting is as shown below.
As for the valve type 2B
∗
A and 2B
∗
B, please refer to the explanation under the heading of "Valves Using Neutral
Position and Side Position" given below.
Valves Using Neutral Position and Size Position (Special Two Position Valve)
Besides the use of the standard 2-position valves aforementioned in the "List of Standard Models and Maximum Flow",
the 3-position valves also can be used as the 2-position valves using the two of their three positions. In this case, there
are two kinds of the valve available. One is the valve using the neutral position and SOL a position (2B
∗
A) and another
is the valve using the neutral position and SOL b position (2B
∗
B).
Standard Mtg. of Solenoid Reverse Mtg. of Solenoid
(Example) In case of Spool Type "2"
AB
P
T
a
b
A
B
P
T
b
A
B
P
T
b
"A":
Use of Neutral and
SOL. a
Energised
Position (2B2A)
SOL. a
Energised
Position
SOL. b
Energised
Position
Neutral Position
"B":
Use of Neutral and
SOL. b
Energised
Position (2B2B)
In the above table, the graphic symbols in mounting
type highlighted with shade are optional extra,
therefore, please confirm the time of delivery with
us before ordering.
B
A
TP
a
A
SOL b
PT
b
SOL a
B
DIRECTIONAL
CONTROLS
E
Typical Changeover Time
Type Model Numbers
1
T
2
T
Changeover Time ms
Standard
Type
27
97
97
22
30
204
Type Model Numbers
T T
Time
ms
G G
Acceleration
2
m/s (G)
6.4
(.65)
6.4
(.65)
110S-DSG-03-3C2-D
∗
Shockless
Type
97 41
DSG-03-3C2-A
∗
DSG-03-3C2-D
∗
DSG-03-3C2-R
∗
DSG-03-3C2-RQ
∗
110
110
120
220
120
S-DSG-03-3C2-R
∗
S-DSG-03-3C2-RQ
∗
12 1 2
T
Max.
OFF OFF
ON
0
0
Solenoid
Spool Shift
1
T
2
ON
OFF
G
SOL a
Acceleration
(G)
(Ps)
Pressure
Time
1
G
2
T
1
T
2
a
b
Ps
Speed
Load
Accelmeter
No.11
Typical Changeover Time
Solenoid Operated Directional Valves
DSG-03/S-DSG-03
Changeover time varies according to oil viscosity, spool type and hydraulic circuit.
16 MPa (2320 PSI)
70 L/min (18.5 U.S.GPM)
2
30 mm /s (140 SSU)
100 %V (After coil temperature rises and saturated)
[Test Conditions]
Standard Type
(Without Shockless Function)
Pressure:
Flow Rate:
Viscosity:
Voltage:
[Result of Measurement]
Shockless Type
[Test Circuit and Conditions]
Setting Pressure (Ps): 7 MPa (1020 PSI)
Load (W): 1000 kg (2205 1bs.)
Speed: 8.8 m/min (28.9 ft./min)
2
Viscosity: 30 mm /s (140 SSU)
[Result of Measurement]
DIRECTIONAL
CONTROLS
Pressure Drop
Model Numbers
Pressure Drop Curve Number
7
9
7
7
9
6
9
7
9
7
4
2
3
DSG-03-3C2
DSG-03-3C3
DSG-03-3C4
DSG-03-3C40
DSG-03-3C5
DSG-03-3C60
DSG-03-3C9
DSG-03-3C10
DSG-03-3C11
DSG-03-3C12
DSG-03-2D2
DSG-03-2B2
DSG-03-2B3
7
9
8
7
7
5
7
8
7
7
3
1
7
9
7
7
7
6
9
7
7
7
6
7
9
7
9
8
7
9
5
7
7
7
8
6
7
5
1
Model Numbers
P
A
Pressure Drop Curve Number
B
TP
B A T
2
2
1
2
2
2
2
3
2
S-DSG-03-3C2
S-DSG-03-3C4
S-DSG-03-2B2
22
3
Viscosity
SSU
Factor 0.81 0.87 0.96 1.03 1.09 1.14 1.19 1.23 1.27 1.30
77 98 141 186 232 278 324 371 417 464
2
mm /s 15 20 30 40 50 60 70 80
90 100
DSG-03-2B8
6
2
5
9
1
→→→→
P
AB
TP
B A T
→→→→
P
T
→
MPa
PSI
Flow Rate
1
2
3
4
5
6
7
8
9
0
20 40
60
80
100
120
2.5
2.0
1.5
1.0
0.5
350
300
250
200
150
100
50
0
0
0 5 10 15 20 25 30 35
L/min
U.S.GPM
Pressure Drop P
1
2
3
02040
60
80
100
120
2.5
2.0
1.5
1.0
0.5
Flow Rate
350
300
250
200
150
100
50
0
0 5 10 15 20 25 30 35
L/min
U.S.GPM
Pressure Drop P
0
MPa
PSI
No.12
Solenoid Operated Directional Valves
DSG-03/S-DSG-03
2
Pressure drop curves based on viscosity of 35 mm /s (164 SSU) and specific gravity of 0.850.
Shockless Type: S-DSG-03
Standard Type: DSG-03
Pressure Drop
For any other viscosity, multiply the factors in the table below.
For any other specific gravity (G'), the pressure drop ( P') may be
obtained from the formula below.
P' = P (G'/0.850)
DIRECTIONAL
CONTROLS
Mounting surface: ISO 4401-AC-05-4-A
TERMINAL BOX TYPE
E
Installation Drawing
.
Model Numbers
DSG-03-
∗∗∗
-A
∗
-50
DSG-03-
∗∗∗
-A
∗
-5090
"C"
Thd.
G 1/2
1/2 NPT
SOL b
SOL aSOL b
0.5
(.02)
179.5
(7.07)
176.3
(6.94)
70
(2.76)
22
(.87)
89.5
(3.52)
35.3
(1.39)
Manual Actuator
6.3(.25)
Dia.
58
(2.28)
105.3
(4.15)
Electrical Conduit Connection
"C"
Thd. (Both Ends)
47.5
(1.87)
Space Needed to Remove
Solenoid-Each End
236
(9.29)
179.5
(7.07)
123
(4.84)
0.5
(.02)
34.5
(1.36)
19
(.75)
92
(3.62)
27
(1.06)
Lock Nut
Tightening Torque:
8.5-10.5
Nm (
75-93
IN.lbs.)
Mounting Surface
(O-Rings Furnished)
91
(3.58)
54
(2.13)
46
(1.81)
32.5
(1.28)
50.8
(2.00)
Tank Port
"T"
Cylinder Port
"B"
Solenoid Indicator Light
(For Sol b)
Solenoid Indicator Light
(For Sol a)
Cylinder Port
"A"
Pressure Port
"P"
7(.28)
Dia. Through
11(.43)
Dia. Spotface
4 Places
No.13
Solenoid Operated Directional Valves
DSG-03-
∗∗∗
-A
∗
Double Solenoid: Spring Centred & No-Spring Detended
Models with AC Solenoids: DSG-03-
∗∗∗
-A
∗
-50/5090
Single Solenoid: Spring Offset
For other dimensions, refer to "Spring Centred and No-Spring Detented"
models.
Solenoid being mounted in the reverse position -SOL a side- is also
available.
Of the two of tank port "T", the tank port in the left side is normally used in our standard sub-plate,
though, either side of the tank port "T" can be used without problem.
DIMENSIONS IN
MILLIMETRES (INCHES)
DIRECTIONAL
CONTROLS
Mounting surface: ISO 4401-AC-05-4-A
TERMINAL BOX TYPE
Installation Drawing
Sub-plate
Model Numbers
DSGM-03-40
DSGM-03-2180
DSGM-03-2190
DSGM-03X-40
DSGM-03X-2180
DSGM-03X-2190
DSGM-03Y-40
DSGM-03Y-2180
Piping Size
"
C
" Thd.
Rc 3/8
3/8 BSP.F
3/8 NPT
Rc 1/2
Rc 3/4
1/2 BSP.F
1/2 NPT
3/4 BSP.F
DSGM-03Y-2190 3/4 NPT
"
D
" Thd.
M6
1/4-20 UNC
M6
1/4-20 UNC
M6
1/4-20 UNC
E
13 (.51)
15 (.59)
F
110
(4.33)
13 (.51)
15 (.59)
13 (.51)
15 (.59)
110
(4.33)
120
(4.72)
HJKLNPQST
9
(.35)
9
(.35)
14
(.55)
10
(.39)
10
(.39)
15
(.59)
32
(1.26)
32
(1.26)
50
(1.97)
62
(2.44)
62
(2.44)
80
(3.15)
40
(1.57)
40
(1.57)
45
(1.77)
16
(.63)
16
(.63)
10
(.39)
48
(1.89)
48
(1.89)
47
(1.85)
21
(.83)
21
(.83)
16
(.63)
24
(.94)
24
(.94)
42
(1.65)
Dimensions mm (Inches)
SOL b
SOL a
P
B
A
T
L
L'
58
(2.28)
70
(2.76)
22
(.87)
35.3
(1.39)
89.5
(3.52)
105.3
(4.15)
114
(4.49)
199.3
(7.85)
202.5
(7.97)
282
(11.10)
70.5
(2.78)
Space Needed to Remove
Solenoid-Each End
L
N
P
S
Q
76
(2.99)
"
C
" Thd.
4 Places
T
7
(.28)
K
6.4
(.25)
21.4
(.84)
32.5
(1.28)
46
(1.81)
22
(.87)
90
(3.54)
10
(.39)
8.8 (.35) Dia. Through
14 (.55) Dia. Spotface
4 Places
92
(3.62)
H
F
11 (.43) Dia.
4 Places
70
(2.76)
110
(4.33)
3.2
(.13)
16.7
(.66)
27
(1.06)
37.3
(1.47)
54
(2.13)
90
(3.54)
18
(.71)
J
"
D
" Thd. "
E
" Deep
4 Places
20
(.79)
Solenoid Operated Directional Valves
DSG-03 / S-DSG-03
No.14
DIMENSIONS IN
MILLIMETRES (INCHES)
Double Solenoid: Spring Centred & No-Spring Detented
Models with DC Solenoids : (S-)DSG-03-
∗∗∗
-D
∗
-50/5090
Models with R Type Solenoids : (S-)DSG-03-
∗∗∗
-R
∗
-50/5090
Single Solenoid: Spring Offset
Sub- plates
DSGM-03
∗
-40/2180/2190
For other dimensions, refer to Models with AC solenoids (Page 13).
Models with RQ Type Solenoids : (S-)DSG-03-
∗∗∗
-RQ100-50/5090
DIRECTIONAL
CONTROLS
PLUG-IN CONNECTOR TYPE (N)
PLUG-IN CONNECTOR WITH INDICATOR LIGHT (N1)
E
Installation Drawing
Model Numbers
DSG-03-
∗∗∗
-D
∗
- -50/5090
C
N
N1
DSG-03-
∗∗∗
-R
∗
-N-50/5090
DEF
Dimensions mm (Inches)
39 (1.54)27.5 (1.08)73.8 (2.91)121.1 (4.77)
53 (2.09)34 (1.34)62.6 (2.46)124.9 (4.92)
Double Solenoid
Models Only
SOL b
SOL a
SOLb
SOLa
: 158.5 (6.24)
: 181.5 (7.15)
AC
DC,R,RQ
Push Button
Lock Nut
Press the "Push Button" then turn "Lock Nut"
clockwise. The position of the "Push Button" is
held.
Be sure to loosen "LockNut" fully before solenoid
is energised
70
(2.76)
Lock Nut
Tightening Torque:
8.5
-
10.5
Nm (
75-93
IN.lbs.)
199.3
(7.85)
114
(4.49)
89
(3.50)
35
(1.38)
F
282
(11.10)
Cable Departure
Cable Applicable:
Outside Dia.
⋅⋅⋅⋅⋅⋅
8-10mm(.31-.39 in.)
Conductor Area
⋅⋅⋅⋅⋅⋅
Not Exceeding
2
1.5mm (.002 Sq. in.)
The position of the Plug-in connector can be changed as
illustrated below by loosening the lock nut. After
completion of the change, be sure to tighten the lock nut
with the torque as specified below.
E
C
D
35.3
(1.39)
Lock Nut
Tightening Torque:
8.5
-
10.5
Nm (
75-93
IN.lbs.)
Cable Departure
Cable Applicable:
Outside Dia.
⋅⋅⋅⋅⋅⋅
8-10mm(.31-.39 in.)
Conductor Area
⋅⋅⋅⋅⋅⋅
Not Exceeding
2
1.5mm (.002 Sq. in.)
The position of the Plug-in connector can be changed as
illustrated below by loosening the lock nut. After
completion of the change, be sure to tighten the lock nut
with the torque as specified below.
176.3
(6.94)
39
(1.54)
38
(1.38)
91
(3.58)
89
(3.50)
236
(9.29)
70
(2.76)
27.5(1.08)
61.8
(2.43)
61.8
(2.43)
35.3
(1.39)
109.1
(4.30)
Double Solenoid
Models Only
No.15
Solenoid Operated Directional Valves
DSG-03 / S-DSG-03
Models with AC Solenoids: DSG-03-
∗∗∗
-A
∗
- -50/5090
For other dimensions, refer to "Terminal Box Type"
(Page 13-14).
Options
Models with Push Button & Lock Nut: (S-)DSG-03-
∗∗∗
-
∗
C(- )-50/5090
N
N1
N
N1
Models with DC Solenoids: (S-)DSG-03-
∗∗∗
-D
∗
- -50/5090
N
N1
Models with R Type Solenoids: (S-)DSG-03-
∗∗∗
-R
∗
-N-50/5090
DIMENSIONS IN
MILLIMETRES (INCHES)
1
2
3
3
DIRECTIONAL
CONTROLS
1
Lead Wire Connection
1.
2.
3.
Type of
Electrical Conduit
Connection
Double Solenoid Type Single Solenoid Type
Terminal
Box Type
Plug-in
Connector
Type
Type of
Electrical Conduit
Connection
Electric Source
Terminal
Box Type
Plug-in
Connector
Type
AC DC AC DC Rectified
→
1
1
3
2
2
3
SOL.
SOL. SOL.
SOL.
SOL.
SOL.
Earth
Power Supply
(For SOL.b)
Indicator
Light
Power Supply
(For SOL.a)
Indicator Light
Common Plate
Common
Power
Supply
Ground
2-Power Supply
1-Power Supply
Indicator Light Indicator Light
Voltage-Surge
Suppressor
Indicator Light
Voltage-Surge
Suppressor
Rectifier
Circuit
Power
Supply
Common
Ground
Power
Supply
Common
Ground
Power
Supply
Common
Ground
Indicator Light
(Integrated in "N1"
model only)
1-Power
Supply
Ground
2-Power
Supply
1-Power
Supply
Ground
2-Power
Supply
Indicator Light
(Integrated in "N1"
model only)
Voltage-Surge
Suppressor
(Circuit composed
in coil)
1-Power
Supply
Ground
2-Power
Supply
Voltage-Surge
Suppressor
Rectifier
Circuit
SOL. a
SOL. b
Earth
SOL. b
Indicator
Light
Earth
Details of Receptacle
Electrical Circuit
Solenoid Operated Directional Valves
DSG-03/S-DSG-03
No.16
There are two grounding terminals. You can use either one.
If you do not need the common plate, remove it.
With DC solenoids, polarity is no question.
Do not perform wiring while the power is on.
Doing so may result in electric shock, burns or death.
Make the wiring properly. Improper wiring will cause an
irregular movement of the machine, resulting in a grave
accident.
DANGER
DIRECTIONAL
CONTROLS
E
Spare Parts List
Item Name of Parts Part Numbers
3C
∗
2D2 2B
∗
Qty.
Remarks
111
1
5
2
222
221
44
1751S-VK418689-6
SO-NB-A014
SO-NB-P21
1790S-VK418329-2
S6
SO-NB-P21
SO-NA-P4
Gasket
O-Ring
O-Ring
Plug
O-Ring
O-Ring
O-Ring
21
27
28
29
30
41
43
Included in Solenoid Ass'y (Item 16 )
Valve Model Numbers
DSG-03-
∗∗∗
-
∗
-50/5090
DSG-03-
∗∗∗
-
∗
-N-50/5090
Seal Kit No.
KS-DSG-03-50
KS-DSG-03-N-50
O-Ring Details for Seal Kit
(5 Pcs.), & (2 Pcs., see above), (4 Pcs.)
27
28 41 43
(5 Pcs.), & (2 Pcs., see above)
27
28 41
55
2
SOL a
SOL b
30 26
19
21
20
22
18
24
31 17
23
25
43 42 41 40 44
16
27
2
1
3
6
4
10
29
15
14
28
27
SOL b
SOL a
46
47 48 45 16
No.17
When making replacement of seals, solenoid assemblies
or coils, please do it carefully after reading through the
relevant instructions in the Operator's Manual.
List of Seals
Before maintenance or removal, do the following, Failure to do
these may cause components to move, causing oil leakage or
serious accidents.
Shut off the equipment's power supply, and be sure that all
electric motors and engines have stopped.
Return pressure in all hydraulic systems to zero.
Solenoid Operated Directional Valves
DSG-03/S-DSG-03
∗
-DSG-03-
∗∗∗
-
∗
-50/5090
∗
-DSG-03-
∗∗∗
-
∗
-N/N1-50/5090
When ordering the O-Rings, please specify the seal kit number from the table below.
Spring Offset Type
Solenoid Ass'y, Coil, Receptacle and Connector
Refer to Page 18 for the details of these parts.
CAUTION
WARNING
