E
E-38
Solenoid Valve
DSS(DSA) TYPE SOLENOID CONTROLLED
PILOT OPERATED DIRECTIONAL VALVE
DSS (DSA) 22 Design Series
Solenoid Control Valve
300 to 600
rr
/min
32 to 35MPa
Features
Specifications
qLong-life operation is ensured by use
of the high-performance, renowned
SS (SA)-G01 wet solenoid valve as
the pilot valve.
wHigh pressure, high capacity
The 04 size can provides up to 300
R/min, while the 06 size delivers up to
600 R/min.
eLow pressure loss
An original flow path design provides
wide-ranging low pressure loss and
enhanced system circuit efficiency.
rInternal modification of the pilot and
drain can be accomplished without
removing the valve by simply con-
necting and disconnecting plugs.
tBuilt-in pilot pressure check valve
When tandem center type valve is
used for the internal pilot valve
(option), pilot pressure required for
switching is self-maintained.
Note) 1.The maximum flow rate of each valve depends on the pressure. For details, see pages E-43 and E-44.
2.Weight in parentheses is for stroke adjustment type.
3.Solenoid specifications are the same as those for SS (SA)-G01. For more information, see pages E-3 and E-15.
Valve Size 04 Size 06 Size
Valve Model Number DSS(DSA)-G04-***-R-**-22 DSS(DSA)-G06-***-R-**-22
Maximum Working
Pressure
MPa{kgf/cm
2
}
P.A.B. Ports 35{357} 32{326}
T Port
Internal Drain Type 16{163} 16{163}
External Drain Type 21{214} 21{214}
Maximum Flow Rate R/min
300 600
Rated Flow Rate R/min
150 300
Maximum Pilot Pressure MPa{kgf/cm
2
} 25{255} 25{255}
Minimum pilot
pressure
MPa{kgf/cm
2
}
A** (Spring Offset Type)
0.8{8.2} 0.8{8.2}E** (No-spring Detent Type)
C** (Spring Center Type)
D** (Pressure Center Type) 1.2{12.2} 1.2{12.2}
Built-in Pilot Pressure Check Valve Type (For Internal Pilot)
0.45 {4.6} (for *3Z, *4, *7*, *8 pilot pressure generation)
Maximum Changeover Frequency (per minute) 120 120
Pilot Volume (cm
3
)
A** (Spring Offset Type) 8.0 20.0
C** (Spring Center Type) 4.0 10.0
Weight (kg)
A** (Spring Offset Type) 8.7(9.5) 14.5(15.4)
E** (No-spring Detent Type)
9.2(10.0) 15.0(15.9)
C** (Spring Center Type)
D** (Pressure Center Type) 10.5 16.5
Operating
Environment
Dust-resistance/Water-resistance Rank JIS C 0920
DSS: IP64 (Dust-tight, Splash-proof) DSA: IP65 (Dust-tight, Waterjet-proof)
Ambient Temperature
-20 to 50°C
Operating Fluid
Temperature Range
-20 to 70°C
Viscosity Range 15 to 300mm
2
/s
Filtration 25 microns or less
Bundled
Accessories
Mounting bolt
M6
×
45 (Two)
M10
×
50 (Four)
M12
×
60 (Six)
Tightening Torque
N-m{kgf-cm}
M6 10 to 13{102 to 133}
M10 45 to 55{460 to 560}
M12 60 to 70{612 to 714}
E Solenoid Valve(P25-045)_E.q 03.11.21 5:56 PM Page 38
E
E-39
Solenoid Valve
¡Handling
z
Pilot pressure values show the differen-
tial pressure between the pilot port and
tank port or drain port. In the case of the
pressure center, they show differential
pressure between the pilot and drain
ports (DR
1, DR2).
x
The standard configuration is internal
pilot and external drain, but other config-
urations are possible when required. See
page E-45 for more information.
c
For the PT mounting type DSS (DSA)-
G**-C7*-**-22, open cross over with
restrictor C7Y is standard.
v
When adjustable spool stroke is desired,
specify L in the auxiliary symbol position
of the model number. Note, however,
that this is not available with the pressure
center type.
b
When using a detent type (E3*), use con-
stant energization in order to securely
maintain the switching position.
n
Use of the pressure center type is recom-
mended for large-volume flow control.
m
For the all ports open center type (A3Z,
E3Z, C4, D4), PT mounting type (C7X,
C7Y, D7X, D7Y), and PAT mounting type,
use the type with built-in external pilot
pressure check valve.
,
The coil surface temperature increases if
this valve is kept continuously energized.
Install the valve so there is no chance of
it being touched directly by hand.
Valve Model Number DSS(DSA)-G04 DSS(DSA)-G06
Front Position
Simplified Symbols
a
PT
AB
Y(DR1)
b
P
b
T
AB
Y(DR1)
a
Detailed Symbols
Y(DR1)
a
A
PT
B
b
P' T'
A' B'
a
B
TP
A
b
Y(DR1)
T'P'
A' B'
Flow Regulator Adjusting
Screw Positions
A Port Restrictor: Right side A
B Port Restrictor: Left side B
A Port Restrictor: Left side A
B Port Restrictor: Right side B
Adjustable Stroke
Adjusting Screw Positions
A Port Side: P/A, B/T flow rate adjustment
(For C7Y, P/B, A/T)
B Port Side: P/B, A/T flow rate adjustment
(For C7Y, P/A, B/T)
A port side
B port side
E Solenoid Valve(P25-045)_E.q 03.11.21 5:56 PM Page 39
E
E-40
Solenoid Valve
Understanding Model Numbers
22– C2 – – C Y7 C – 06 G – DSS
Design number
Power supply
C: AC (50/60Hz) C1=AC100V C115=AC110V C2=AC200V C230=AC220V
D: DC D1=DC12V D2=DC24V
E: AC (Built-in rectifier; 50/60Hz)
E1=AC100V E115=AC115V E2=AC200V E230=AC230V
Pilot pressure check valve
None: No check valve
C: Built-in check valve
Center valve position flow path
1, 2, 3, 4, 4S,
5, 6, 6S, 7, 8
Operation Method
A: Spring offset
E: No-spring detent
C: Spring center
D: Pressure center
Nominal diameter 04 size, 06 size
Mounting method G: Gasket type
Pump Type DSS: Central terminal box solenoid control valve
DSA: DIN connector type solenoid control valve
Auxiliary symbol (For multiple specifications, use alphabetic sequence.
A: Internal drain
E: External pilot
L: Spool stroke limiter
P: Flow regulator valve
to restrict P port
Y: With meter-out flow
regulator valve
R: With indicator light
DSS type: Standard
DSA type: Optional
N: With manual lock
G: Surgeless type
Q: Quick return type
Closed
Semi-open
XY
12344S56S
AE
Pressure center
C
Spring Center
D
Spring Offset No-spring detent
Open
Z
6 7 8
T
AB
PT
AB
PT
AB
PT
AB
PT
B
T
AB
P T
AB
PT
AB
PT
AB
PT
AB
PT
AB
P
TP Y(DR1)
BA
Y(DR1)
PT
AB
Y(DR1)
PT
AB
L(DR2)
PT
AB
Y(DR1)
E Solenoid Valve(P25-045)_E.q 03.11.21 5:56 PM Page 40
Solenoid Valve
E
E-41
DSS(DSA)-G04-A**-R-**-22
(Spring Offset Type)
X (PP) port
Used for external pilot
2- 11x1 counterbore
6.6 holes
L (DR2) port
Used for pressure center type
4- 17.5x1 counterbore
11 holes
Y (DR1) port
Used for external drain
61 Space required
for coil removal
AC150.5(141)
DC157.5(148)
AC102
DC109
48.5(39)
153.6
102
52
SOL b
DSS type
DSA type
2-G1/2 (Previously PF)
33
35
101
4
172.5
186.5
91
2- 3
45.5
182
193.5
A
B
X
Y
T
P
34
φ
φ
φ
φ
φ
Y
SOL b
AC102
DC109
SOL a
AC204
DC218
Y
143
93
245
SOL bSOL a
Y
228
(233.5)
SOL bSOL a
Pilot flow rate adjusting screw
Y
SOL bSOL a
276
88
Stroke adjusting screw
Stroke adjustment range 8
326 max.
Lock nut
T
L
P
X
Y
B
A
L
A
T
B
P
Y
X
4- 17.5x11 counterbore
11 holes
4- 17.5
4-M10x17
2-M6x12
2- 4 (pin hole)
3- 6
4-Rc“E”
3-Rc1/4
92
70
11
1.6
14.3
15.9
69.9
57.2
55.6
34.9
71.511
65.9
88.1
18.3
34.1
50
76.6
101.6
142
20.2
11
164
21
35
14.4
16
16
41.5
52
55.7
17.2
37.2
49.2
80.2
92.2
114.2
125.7
φ
φ
φ
φ
φ
E
DSS(DSA)-G04-
C
**-R-**-22 DSS(DSA)-G04-D**-R-**-22
(No-spring Detent Type) (Pressure Center Type)
(Spring Center Type)
A
E
A
DSS(DSA)-G04-
C
**-RY-**-22 DSS(DSA)-G04-E**-LR-**-22
D
C
(Flow Regulator Type) (Adjustable Stroke Type)
Gasket Surface Dimensions
ISO 4401-07-06-0-94
JIS B 8355 D-07-06-0-94 For sub plate DSS (DSA) -G04
()
Dimensions in the parentheses are for the DSA-G04-***-**-21.
Model No. E Weight
MDS-04-10 1/2
4.5kg
MDS-04X-10 3/4
E Solenoid Valve(P25-045)_E.q 03.11.21 5:56 PM Page 41
E
E-42
Solenoid Valve
DSS(DSA)-G06-A**-R-**-22
(Spring Offset Type)
41
50.5
127.5
255
SOL a
48.5(39)
AC102
DC109
AC150.5(141)
DC157.5(148)
61
58
116
2- 6
207
191.5
145.5
120
48
43
6
201
212.5
DSS type
DSA type
Y (DR1) port
Used for external drain
X (PP) port
Used for external pilot
13.8 holes
6- 21x2counterbore
L (DR2) port
Used for pressure center type
2-G1/2 (Previously PF)
φ
φ
φ
Space required
for coil removal
SOL a
AC102
DC109
SOL b
AC204
DC218
101.5
178.5
306
SOL aSOL b
(252.5)
247
SOL aSOL b
Pilot flow rate adjusting screw
96
346
SOL aSOL b
Lock nut
Stroke adjusting screw
Stroke adjustment range 12.5
417 max.
T
P
AB
X
Y
L
6-M12x25
2- 11 holes
Rc1/4 (back)
4 - 20x13 counterbore
14 holes
11 hole
Rc1/4 (back)
2- 7x8 (pin hole)
4- 20 holes
Rc“E” (back)
92.1
74.6
73
46
19
17.5
4.8
12
154
130.2
112.7
100.8
94.5
77
53.2
29.4
17.5
5.6
118
12
25.4
180.8
207
32
35
φ
φ
φ
φ
φ
φ
E
DSS(DSA)-G06-
C
**-R-**-22 DSS(DSA)-G06-D**-R-**-22
(No-spring Detent Type) (Pressure Center Type)
(Spring Center Type)
A
E
A
DSS(DSA)-G06-
C
**-RY-**-22 DSS(DSA)-G06-E**-LR-**-22
D
C
(Flow Regulator Type) (Adjustable Stroke Type)
Gasket Surface Dimensions
ISO 4401-08-07-0-94
JIS B 8355 D-08-07-0-94 For sub plate DSS (DSA) -G06
()
Dimensions in the parentheses are for the DSA-G06-***-RY-**-21.
Model No. E Weight
MDS-06-30 3/4
5.2kg
MDS-06X-30 1
E Solenoid Valve(P25-045)_E.q 03.11.21 5:56 PM Page 42
3-Position Spring Center Type
2-Position Spring Offset Type
2-Position Spring Offset Type
3-Position Spring Center Type
Solenoid Valve
E
E-43
DSS(DSA)-G04
Pressure Loss Characteristics
Note)
Interpreting the Pressure Loss Value
Switching Response Time
Model No. : DSS-G04-C5
Voltage Symbol : C1 (AC Solenoid)
Performance Curves
Hydraulic Operating Fluid Viscosity 32mm
2
/s
1.2{12.2}
1.0{10.2}
0.8{8.2}
0.6{6.1}
0.4{4.1}
0.2{2}
100 200 3000
6 5 4
2 2
4 3 1
2AP
4TB
At center
3TP
3
2
1
Flow rate /min
MPa{kgf/cm
2
}
Pressure Loss
a
Y
(DR1)
BA
TP
b
Curve
Curve
Curve
Model No. JIS Symbol
Pressure - Flow Rate Allowable Value
Model No. JIS Symbol
Pressure - Flow Rate Allowable Value
DSS(DSA)
-G04
-A3X-
PT
AB
b
Y(DR1)
3
4 2
3
300
200
100
10
{
102
}
20
{
204
}
30
{
306
}
0
/min
Pressure MPa{kgf/cm
2
}
Flow rate
DSS(DSA)
-G04
-E3X-
a
PT
AB
Y(DR1)
b
24
33
300
200
100
10
{
102
}
20
{
204
}
30
{
306
}
0
Pressure MPa{kgf/cm
2
}
Flow rate
-A3Z-
PT
AB
b
Y(DR1)
1
4
22
-E3Z-
Y(DR1)
b
PT
AB
a
1
22
4
-A3Y-
Y(DR1)
b
PT
AB
24
33
-E3Y-
b
Y(DR1)
PT
AB
a
24
33
DSS(DSA)
-G04
-C1-
a
PT
AB
Y(DR1)
b
1
4
33
300
200
100
10
{
102
}
20
{
204
}
30
{
306
}
0
Pressure MPa{kgf/cm
2
}
PP-0.8MPa{8.2kgf/cm
2
}
PP-1.2MPa{12.2kgf/cm
2
}
/min
Flow rate
DSS(DSA)
-G04
-D1-
PT
AB
Y(DR1)
b
L(DR2)
a
1
4
33
300
200
100
10{102} 20{204} 30{306}
0
Pressure MPa
{
kgf/cm
2
}
Flow rate
/min
-C2-
b
Y(DR1)
PT
AB
a
24
32
-D2-
Y(DR1)
b
L(DR2)
a
PT
AB
24
32
-C5-
b
Y(DR1)
PT
AB
a
24
33
-D5-
b
Y(DR1)
PT
AB
a
L(DR2)
24
33
-C6-
a
PT
AB
Y(DR1)
b
1
4
33
-D6-
a
PT
AB
Y(DR1)
b
L(DR2)
1
4
33
-C6S-
PT
AB
Y(DR1)
ba
24
33
-D6S-
a
PT
AB
Y(DR1)
b
L(DR2)
24
33
-C4S-
a
PT
AB
Y(DR1)
b
24
33
300
200
100
10
{
102
}
20
{
204
}
30
{
306
}
0
Pressure MPa{kgf/cm
2
}
Flow rate
/min
-D4S-
b
Y(DR1)
PT
AB
a
L(DR2)
24
33
-C4-
ab
PT
AB
Y(DR1)
1
4
22
3
-D4-
a
PT
AB
Y(DR1)
b
L(DR2)
1
4
22
3
-C8-
a
PT
AB
Y(DR1)
b
24
32
5
300
200
100
10
{
102
}
20
{
204
}
30
{
306
}
0
Pressure MPa{kgf/cm
2
}
Flow rate
/min
-D8-
a
PT
AB
Y(DR1)
b
L(DR2)
24
32
5
-C7X-
-C7Y-
-D7X-
-D7Y-
b
Y(DR1)
PT
AB
a
L(DR2)
53
44
6
E Solenoid Valve(P25-045)_E.q 03.11.21 5:56 PM Page 43
3-Position Spring Center Type
2-Position Spring Offset Type
2-Position Spring Offset Type
3-Position Spring Center Type
E
E-44
Solenoid Valve
DSS(DSA)-G06
Pressure Loss Characteristics
Note)
Interpreting the Pressure Loss Value
Switching Response Time
Model No. : DSS-G06-C5
Voltage Symbol: C1 (AC Solenoid)
Model No. JIS Symbol
Pressure - Flow Rate Allowable Value
Model No. JIS Symbol
Pressure - Flow Rate Allowable Value
DSS(DSA)
-G06
-A3X-
PT
AB
a
Y(DR1)
1 1
2
1
600
400
500
200
300
10
{
102
}
020
{
204
}
30
{
306
}
100
Pressure MPa{kgf/cm
2
}
Flow rate
/min
DSS(DSA)
-G06
-E3X-
b
PT
AB
Y(DR1)
a
1 1
2
1
600
400
500
200
300
10
{
102
}
020
{
204
}
30
{
306
}
100
Pressure MPa{kgf/cm
2
}
Flow rate
/min
-A3Z-
PT
AB
a
Y(DR1)
1 1
2
1
-E3Z-
Y(DR1)
a
PT
AB
b
1 1
2
1
-A3Y-
Y(DR1)
a
PT
AB
1 1
2
1
-E3Y-
a
Y(DR1)
PT
AB
b
1 1
2
1
DSS(DSA)
-G06
-C1-
b
PT
AB
Y(DR1)
a
1 1
2
1
PP-0.8MPa{8.2kgf/cm
2
}
PP-1.2MPa{12.2kgf/cm
2
}
600
400
500
200
300
10
{
102
}
020
{
204
}
30
{
306
}
100
Pressure MPa{kgf/cm
2
}
Flow rate
/min
DSS(DSA)
-G06
-D1-
PT
AB
Y(DR1)
a
L(DR2)
b
1 1
2
1
600
400
500
200
300
10
{
102
}
020
{
204
}
30
{
306
}
100
Pressure MPa{kgf/cm
2
}
Flow rate
/min
-C2-
a
Y(DR1)
PT
AB
b
1 1
2
1
-D2-
Y(DR1)
a
L(DR2)
b
PT
AB
1 1
2
1
-C5-
a
Y(DR1)
PT
AB
b
1 1
2
1
-D5-
a
Y(DR1)
PT
AB
b
L(DR2)
1 1
2
1
-C6- -D6-
b
PT
AB
Y(DR1)
a
L(DR2)
1 1
2
1
-C6S-
PT
AB
Y(DR1)
ab
1 1
2
1
-D6S-
b
PT
AB
Y(DR1)
a
L(DR2)
1 1
2
1
-C4S-
b
PT
AB
Y(DR1)
a
1 1
2
1
600
400
500
200
300
10{102}0 20{204} 30{306}
100
Pressure MPa
{
kgf/cm
2
}
Flow rate
/min
-D4S-
a
Y(DR1)
PT
AB
b
L(DR2)
1 1
2
1
-C4-
ba
PT
AB
Y(DR1)
1 1
2
1
3
-D4-
b
PT
AB
Y(DR1)
a
L(DR2)
1 1
2
1
3
-C8-
b
PT
AB
Y(DR1)
a
1 1
2
1
5
600
400
500
200
300
10
{
102
}
020
{
204
}
30
{
306
}
100
Pressure MPa{kgf/cm
2
}
Flow rate
/min
-D8-
b
PT
AB
Y(DR1)
a
L(DR2)
1 1
2
1
5
-C7X-
-C7Y-
a
Y(DR1)
PT
AB
b
3 2
2 45
-D7X-
-D7Y-
a
Y(DR1)
PT
AB
b
L(DR2)
42
23
5
2.0{20.4}
1.6{16.3}
1.2{12.2}
0.8{8.2}
0.4{4.1}
200 400 600100 300 5000
5 4
AP
TB
At center
TP
3
2
1
1
2
4
11
241
Flow rate /min
MPa{kgf/cm
2
}
Pressure Loss
a
PT
AB
Y
(DR1)
b
Curve
Curve
Curve
E Solenoid Valve(P25-045)_E.q 03.11.21 5:57 PM Page 44
E
E-45
Solenoid Valve
DSS(DSA)-G04-C**-R-C*-22
Pilot, Drain System Change
List of Sealing Parts
Note) 1.O-ring 1A/1B/4D-** indicate JIS Standard B 2401-1A/1B/4D-**.
2.See SS/SA-G01-**-31for information about the seal part for the pilot sole-
noid valve.
Cross-sectional Drawing
2
7
15
512141311314
6
1718
P
R
P
R
9 A 16
10
8B
C
Y(DR1)
X(PP)
PT
Cross-sectional P-P
Cross-sectional R-R
DSS(DSA)-G06-C**-R-C*-22
Pilot, Drain System Change
61718
15
7
2512141113314
P
R
R
P
9 A 16
10
8 B
C
Y(DR1)
P
X(PP)
T
Cross-sectional P-P
Cross-sectional R-R
Part No.
Part Name
1
2
3
4
5
6
7
Body
Cover
Spool
Ring
Spring
Nameplate
Screw
Part No.
Part Name
8
9
10
11
12
13
Plug
Plug
Plug
Pin
O-ring
O-ring
Part No.
Part Name
14
15
16
17
18
O-ring
O-ring
O-ring
Solenoid Valves
Screw
After Change
Hexagon Socket Head Plug
Pilot
Internal
Remove from A.
External
Insert into A
Drain
Internal
Switch from B to C.
External
Switch from C to B.
Note) A single hex head plug (NPTF 1/16) is required
when changing to external pilot.
Changing the Pilot and Drain Connections
Seal Kit Number
04 size 06 Size
Single Solenoid Double Solenoid Single Solenoid Double Solenoid
EDBS-04AA-1A EDBS-04CA-1A EDBS-06AA-1A EDBS-06CA-1A
Part No.
Part Name
Part Number
Q'ty
04 size 06 Size
12 O-ring 1B-P34 1B-G45 2
13 O-ring 1B-P22 1B-P28 4
14 O-ring 1B-P10A 1B-P20 2
15 O-ring 1B-P9 1B-P10 2
16 O-ring 1B-P8 1B-P8 3
Note) The seal kit includes a seal for the pilot solenoid valve.
E Solenoid Valve(P25-045)_E.q 03.11.21 5:57 PM Page 45