E
E-46
Solenoid Valve
FINE SOLENOID VALVE
Fine Solenoid Valve
SF Series
10 to 40
rr
/min
21MPa
q
The function of two valves in one
A two-speed controller provides smooth
speed adjustment from low speed to high,
and from high-speed to low.
w
Quiet starts and stops
A low-speed startup and stop feature
makes startups and stops smooth and
soft.
e
Separate control of forward and back
cylinder movement
There are five volume settings for high-
speed flow rate and acceleration/deceler-
ation times that can be independently
adjusted SOL.a and SOL.b (ON side,
OFF side).
¡Handling
z
Valve differential pressure
Volume adjustment becomes sensitive
when P
→
A (B) and B(A)
→
T differential
pressure is large. Maintain the pressure dif-
ferential so it is no greater than 3.5MPa
{35.7kgf/cm
2
}.
x
Low-speed flow rate
The spool may not move if the low-speed
flow rate is below the minimum. Use this
valve only within the allowable minimum
low-speed flow rate range.
c
Deceleration circuit
¡
Use a C5** spool for the deceleration
circuit. Deceleration is difficult with the
C6S** spool.
¡
When large deceleration is required or
for a system that uses a vertical cylin-
der, equip an external drain type
counter balance valve. See the illustra-
tion below.
v
Pilot check circuit
¡
For a circuit with a pilot check valve,
knocking may occur in the pilot check
valve due to large load inertia and circuit
pressure loss. In cases like this, use an
external drain type pilot check valve. See
the illustration below.
b
Environmental conditions
¡
The IC circuit board is located inside the
central control box, so care must be
exercised concerning water-resistance
and ambient temperature.
•
Water: Cover the box so there is no
direct splashing with water.
•
Ambient Temperature: Use in an area
where the temperature is 5°C to 50°C.
n
Operating Fluid
¡
Always keep the operating fluid clean.
Allowable contamination is class NAS11
or less.
¡
Use oil-based hydraulic operating fluid.
¡
Contact your agent when you want to
use fire-resistant hydraulic fluid.
(Continued on following page)
10– D2 – R – C – G01 – SF
Design number
Power supply D2: 24V DC
Auxiliary symbol
None: Sink
A: Source
Maximum flow rate: 10, 20, 40 /min
Center position: 5,6S
Operation Method: C (Spring center)
With indicator light
Mounting method G: Gasket type
Nominal diameter: 01 (01 size)
Fine solenoid valve
ab
PT
AB
DR
DR
a
P
b
BA
T
Note) 1.The above high-speed and low-speed flow rates are obtained with a differential pressure
(PA, PB) of 1.0MPa {10.2kgf/cm
2
}. The flow rates depend on differential pressure.
2.Hysteresis and repeatability values are those at maximum flow rate.
3.For mounting bolts, use 12T or equivalent.
4.Mounting bolts are not included.
Features
When large brake pres-
sure is required
(Use an external drain
type counter valve.)
When there is the possibil-
ity of pilot check valve
knocking
(Use an external drain
type pilot check valve.)
Specifications
Model No.
Item
SF-G01
-C*10-D2-10
SF-G01
-C*20-D2-10
SF-G01
-C*40-D2-10
Valve Maximum Operating Pressure MPa{kgf/cm
2
}
21{214}
Maximum Flow Rate R/min(Note1)
10 20 40
High-speed Flow Rate R/min(Note1)
5 to 10 10 to 20 20 to 40
Low-speed Flow Rate R/min(Note1)
0.5 to 4 2 to 8 4 to 16
Maximum Allowable Pressure MPa{kgf/cm
2
}
7{71}
Acceleration/Deceleration Time Adjustment Range SEC
0.1 to 2
Hysteresis (Note 2) 7%
Repeatability (Note 2) 3%
Power Supply Voltage V D2: 24V DC regulated DC power supply
Maximum Power Consumption W
36W
Operating
Environment
Dust Resistance/Water Resistance Rank
JIS C0920 IP63 (Dust-tight, Rain-proof)
Ambient Temperature
5 to 50°C
Operating
Fluid
Temperature Range
5 to 60°C
Viscosity Range
15 to 300mm
2
/s
Filtration 25 microns or less
Mounting
bolt
Size x Length M5 x 45 (four)
Tightening Torque 5 to 7N-m{51 to 71kgf-cm}
Understanding Model Numbers
E Solenoid Valve(P46-058)_E.q 03.11.20 1:49 PM Page 46
Solenoid Valve
E
E-47
m
Note the following points to optimize opera-
tion.
(1)
Control fluid temperature when using this
valve. Since the valve perform restrictor
valve control on all processes, tempera-
ture differential changes flow volume and
acceleration/deceleration time. The rec-
ommended temperature range is 30°Cto
60°C.
(2)
During the positioning operation following
deceleration, make sure that sufficient
low-speed running is provided following
deceleration before stopping operation. If
low-speed operation time is too short can
cause stopping during deceleration and
shock problems due to fluctuation in load,
etc.
Electrical Control Precautions
¡
Do not introduce a high-speed signal
prior to a low-speed signal. Make sure
the two signals are introduced simultane-
ously or that the low-speed signal is intro-
duced first.
(1)
Repeatedly introducing the high-speed
signal first in a source type configuration
can damage the IC board.
(2)
The valve will not operate on the high-
speed signal only.
¡
The following adjustments in the range of
VR1 through VR5 can be made indepen-
dently for SOL.a and SOL.b. You can
make adjustments for the best conditions
for forward and back operations when
considering the cylinder operations.
¡
Adjustment volume is arranged in from
VR1 through VR5 in clockwise (right-
ward) rotation sequence when viewed
from the coil side.
¡
The following are the factory default vol-
ume settings.
VR1
.
2
.
4
.
5

Minimum setting
VR3

Maximum setting
All Adjustment VRs
Maximum is clock-
wise (rightward)
rotation.
¡
The volume rotation
angle is 270
°
. Contact
your agent about a
three-rotation type adjus-
tor for fine adjustment.
Electrical Wiring
Adjustment Elements
+
SW2
–
High-speed signal
input terminal
COM terminal (+)
Low-speed signal
input terminal
COM terminal (–)
Low-speed signal input terminal
High-speed signal
input terminal
–
SW1
SW2
+
24V DC regulated
DC power supply
24V DC regulated
DC power supply
SW1
ON
ONSW 1
SW 2
Time
Flow rate
0
OFF side
Low-speed flow rate
adjustment VR5
ON side
Low-speed flow rate
adjustment VR1
High-speed flow rate
adjustment VR3
High-speed
signal
Low-speed
signal
Acceleration time
adjustment VR2
Decreation time
adjustment VR4
SOL b SOL a
(SOL a) OFF side low-speed flow rate adjustment
(SOL a) Deceleration time adjustment
(SOL a) High-speed flow rate adjustment
(SOL b) High-speed flow rate adjustment
(SOL b) Deceleration time adjustment
(SOL b) OFF side low-speed flow rate adjustment
(SOL a) ON side low-speed flow rate adjustment
(SOL a) Acceleration time adjustment
(SOL b) ON side low-speed flow rate adjustment VR1
(SOL b) Acceleration time adjustment VR2
Spool Type and JIS Symbols
Control Pattern
Spool Type C5** C6S**
JIS Symbol
a
b
PT
AB
a
b
PT
AB
¡
Sink Type (Auxiliary Symbol: None)
Switches on load and power supply minus
side
¡
Source Type (Auxiliary Symbol: A)
Switches on load and power supply plus
side
Low-speed
signal
High-speed
signal
High-speed Low-speedLow-speed
Switch SW2 ON
Switch SW1 ON
Time
(Max.)
E Solenoid Valve(P46-058)_E.q 03.11.20 1:49 PM Page 47
SOL aSOL b
Indicator light (SOL-b)
Indicator light (SOL-a)
P
A
B
T
2 to G (Previously PF) 1/2
40.5
30.2
21.5
12.7
32.5
31
0.75
25.9
15.5
5.1
46
25.5
48
92.5
112.5
37.5
216
66
5.5
137
φ
E-48
Solenoid Valve
Installation Dimension Drawings
SF-G01-C***-(A)R-D2-10
Performance Curves
Hydraulic Operating Fluid Viscosity 32mm
2
/s
40
C540
C6S40
C520
C6S20
C510
C6S10
30
20
10
0 10{102} 20{204}
Flow rate
/min
Pressure MPa{kgf/cm
2
}
SW 1 ON
SW 2 ON
Time0.00 20.00s
OFF
OFF
Timer set
Max
Timer set
Max
0
Control flow rate 10 /min
Control flow rate
0.5 /min
Control flow rate
0.5 /min
BA
TP
b
a
¡Pressure
−
Flow Rate Characteristics
•
Use the valve within the allowable flow
rate range shown by the graph to the
right.
•
There are no operational problems with-
in the allowable flow rate range, even
when one-pass is used.
•
Valve: SF-G01-C510-R-D2-10
•
Supply Pressure: 21MPa{214kgf/cm
2
}
•
Hydraulic Circuit
¡Control Waveform Example
E
E Solenoid Valve(P46-058)_E.q 03.11.20 1:49 PM Page 48
Solenoid Valve
E
E-49
Cross-sectional Drawing
19 18 10 13 14 8 9 17 12 11 7
161 534621520
Seal Part List (Kit Model Number EFS)
Note) 1.O-ring 1B-** refers to JIS B 2401-1B-**.
2.Special flurorubber is used (Part Number: RO-P3-VS).
Part No.
Part Name
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Body
Cover
Spool
Retainer
Spacer
Spring
Nut
Solenoid guide
Solenoid coil
Packing B
Coil case
Coil yoke
Central terminal box kit
Nameplate
Hexagon Socket Head Bolt
O-ring
O-ring
O-ring
O-ring
O-ring
Part No.
Part Name Type/Part Number Q'ty
16 O-ring AS568-012(Hs90) 4
17 O-ring AS568-019 4
18 O-ring AS568-019(Hs90) 2
19 O-ring AS568-017(Hs90) 2
20 O-ring P3 Note2 2
SF-G01-C***-(A)R-D2-10
E Solenoid Valve(P46-058)_E.q 03.11.20 1:49 PM Page 49
