Cylinder speed (mm/s)
Bore size (mm)
Piping
length
Speed
controller
Cylinder
Skip valve
Series VNA
Process Valve
2 Port Valve For Compressed Air and Air-hydro Circuit Control
Exclusively for air pressure system and air-hydro circuit control
Universal 2 Port Valve
Cylinder actuation by external pilot air
The balance poppet permits
normal and reverse flow.
Operation from 0 MPa
is possible.
Compressed Air Air pressure circuit: Application examples
Air-hydro Air pressure circuit: Application examples
Operation Capacity When
Used in Air-hydro Units
Air-hydro circuit: Application example
Basic circuit
This series can supplement the ca-
pacity of conventional air-hydro valve
units. They are suited to operate large
bore cylinders as well as to simultane-
ously operate multiple cylinders and
suspend their operation. Thus they can
be used in the same way as the con-
ventional air-hydro units.
When speed controller is
mounted
Connect a speed controller
(Series AS etc.) to A port of
VNA쏔11 (in order to protect
the speed control valve from
surges when cylinder opera-
tion is suspended, thus im-
proving stopping accuracy).
Refer to Air-hydro Unit pages in “Best Pneumatics
No. 2” for further information on air-hydro.
Supply
pressure
Conditions
Hydraulic
fluid
Load
Piping
length
0.49 MPa
ISO VG32
No load
1 m
Piping
diameter
VNA111A,
CCVSO2
VNA211A,
CCVLO2
3/8B (9 mm)
1/2B (13 mm)
VNA311A
VNA411A
1B (25 mm)
3/4B (19 mm)
Caution
Skip valve function
Combination of 2 or more
valves of Series VNA provides
a skip valve function. Connect
the skip valve to the A port side
of a stop valve.
Caution
Wide variations
N.C., N.O., C.O., types are
available. Threaded type from 6A to 50A
is standardized.
Actuator stop valve
Intermediate stop, inching
Actuator skip valve
Terminal deceleration,
intermediate deceleration,
accelerative start
Actuator exhaust valve
High speed operation,
high speed exhaust
Line stop valve Residual line pressure
exhaust valve
Air blow valveAir motor driving
valve
Main
Branch
Main
Cylinder
Speed
controller
Stop
valve
Skip valve
Stop valve
357
[Option]
VNA
VNB
SGC
VNC
VNH
VND
VCC
VNA
VNA
Air operated
External pilot solenoid
2
2
1
1
A
A
1
0
15A 1
15A
T
Bracket (Valve size: 1/2/3/4.)
Nil
B
Note)
None
With bracket
Manual override
Rated voltage
Orifice dia.
(mm)
Symbol
Symbol
Symbol
1
1
1
2
N.C. N.O. C.O.
Port
size
Rc
ø15
ø10
ø20
2
1
6A
8A
10A
10A
15A
20A
25A
32A
40A
50A
1 2 3
Note)
3
ø254
ø325
ø406
ø507
Note) Air operated only
1
8
1
4
3
8
3
8
1
2
3
4
1
4
1
2
Note 2)
3
2
1
Note 2)
4
5
Note 2)
6
Note 2)
7
Note 2)
9
Note 1) CE compliant: For D or
DZ only
Note 2) Semi-standard
Valve
size
1 to 4
Valve
size
5 to 7
Thread type
Nil
F
N
T
Rc
G
NPT
NPTF
Note) Only valve sizes 1, 2, 3 and 4.
Shipped after assembled at our factory.
Bracket part no.
Valve size 1: VN1-A16 (with thread)
Valve sizes 2 to 4: VN-16
2 to 4
Note) Option
Nil: Non-locking push type
Nil: Non-locking
push type
Process Valve: 2 Port Valve
For Compressed Air and Air-hydro Circuit Control
Series
VNA
Seal material
Refer to “Table (1)” for avail-
ability.
A
B
C
NBR seals
FKM seals
EPR seals
Valve size
Valve type
Port size
Model
Fluid
Argon
Helium
Kinematic viscosity
40 to 100 mm
2
/s
Carbon dioxide (CO
2
)
(0.7 MPa or more)
VNAA
(Valve material: NBR seal)
Air (Standard, Dry)
Carbon dioxide (CO2) (Less than 0.7 MPa)
Nitrogen gas (N2)
Turbine oil,
Hydraulic fluid
VNA

B
(Valve material: FKM seal)
VNA

C
(Valve material: EPR seal)
Turbine oil,
Hydraulic fluid
Kinematic viscosity
40 to 100 mm
2
/s
Caution
Table (1) Applicable Fluids
This product cannot be used for water application.
110 VAC 50/60 Hz
200 VAC 50/60 Hz
100 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
A: Non-locking push type A
(projecting)
Note)
B: Slotted locking type B
(tool required)
Note)
CE compliant
Note) CE compliant: For D or DZ only
Nil
Q
—
CE compliant
Electrical entry/With light/surge voltage suppressor
E Grommet terminal
GS Grommet with surge voltage suppressor
G Grommet
Electrical entry
Valve
size
Symbol
Valve
size
1 to 4
Note 2)
Valve
size
5 to 7
EZ Grommet terminal with light/surge voltage suppressor
T Conduit terminal
TZ
Conduit terminal with light/surge voltage suppressor
D DIN terminal
DZ DIN terminal with light/surge voltage suppressor
G Grommet
GS Grommet with surge voltage suppressor
C Conduit
T Conduit terminal
TS Conduit terminal with surge voltage suppressor
TZ
Note 1)
Conduit terminal with light/surge voltage suppressor
TL
Note 1)
Conduit terminal with indicator light
D DIN terminal
DL
DIN terminal with indicator light
Note 1) Except rated voltage 6, 7, 9.
Note 2) For valve sizes 5 to 7 of the DZ DIN terminal with light/surge
voltage suppressor, be sure to add suffix -X200 at the end of the
part number. (For CE compliant product, -X200 is not required.)
In this case, the pilot solenoid valve is VO307-DZ.
CE compliant
Valve size
1 to 7
D DIN terminal
DZ DIN terminal with light/surge voltage supressor
358
How to Order
[Option]
Note) CE compliant: For D or
DZ only
Model
Port size
Rc
Cv
Av x 10
-6
m
2
b
Flow characteristics
Measured by air
Measured by water
Note)
Mass (kg)
External pilot
solenoid
Orifice
diameter
ø (mm)
Air operated
Model
1
8
1
4
3
8
1
2
3
4
10
0.88
1.5
1.9
3.8
4.8
7.5
C
[dm
3
/ (bar·sec) ]
3.5
5.9
7.9
16
23
34
0.35
0.24
0.16
0.35
0.25
0.16
15
20
0.1
0.3
0.5
0.2
0.4
0.6
VNA1-6A
VNA1-8A
VNA2-15A
VNA2-10A
VNA1-10A
VNA3-20A
Note) This product cannot be used for water application.
Port size
Rc
Flow characteristics
Mass (kg)
External pilot
solenoid
Orifice
diameter
ø (mm)
Air operated
Model
Cv
12
18
28
43
Effective area
(mm)
2
220
320
500
770
25
32
40
50
0.8
1.3
2.1
3.1
0.9
1.4
2.2
3.2
1
4
1
2
1
2
1
1
VNA4-25A
VNA5-32A
VNA6-40A
VNA7-50A
25
41
51
110
130
210
Air operated
External pilot
solenoid
Note 1) No freezing
Note 2) Lubrication is not allowed for use with EPR seal material.
Note 3) For external pilot solenoid, it is recommended that the pilot solenoid valve be ori-
ented either vertically upward or horizontally.
Note) For “How to Order” pilot solenoid valves, refer to page 363.
Port size
Pilot solenoid valve SF4--23
Allowable voltage fluctuation
Temperature rise
Power
consumption
DC
Holding
Inrush
Manual override
Apparent
power
AC
Electrical entry
Coil rated
voltage (V)
AC (50/60 Hz) 100 V, 200 V, Other voltage (Option)
24 V, Other voltage (Option)
–15% to +10% of rated voltage
35°C or less
(When rated voltage is applied.)
5.6 VA (50 Hz),
5.0 VA (60 Hz)
12 VA (50 Hz),
10.5 VA (60 Hz)
3.4 VA (50 Hz),
2.3 VA (60 Hz)
7.5 VA (50 Hz),
6 VA (60 Hz)
12.7 VA (50 Hz),
10.7 VA (60 Hz)
7.6 VA (50 Hz),
5.4 VA (60 Hz)
1.8 W (without light),
2 W (with light)
4.8 W (without light), 5 W (with light)
Non-locking push type
Other (Option)
Non-locking push type
DC
6A to 25A 32A to 50A
VO301-00
Grommet,
Grommet terminal
Conduit terminal
DIN terminal
Grommet, Conduit
DIN terminal
Other (Option)
32A to 50A (CE compliant)
VO307-00
D
DZ
-Q
DIN terminal
Pilot Solenoid Valve Specifications
70°C or less
(When rated voltage is applied.)
50°C or less
(When rated voltage is applied.)
Specifications
Fluid (Main piping) Refer to “Table (1)” on page 358.
–5 to 60°C
Note 1)
–5 to 50°C
Note 1)
(Air operated type: 60°C)
1.5 MPa
0 to 1 MPa
0.2 to 0.7 MPa
Not required (Use turbine oil Class 1 ISO VG32, if lubricated.
Note 2)
)
–5 to 50°C
Note 1)
(Air operated type: 60°C)
(Air operated type only)
Ambient temperature
Proof pressure
Operating pressure range
External pilot air Lubrication
Temperature
Pressure range
VNA A
Fluid
temperature
VNA B
 C
–5 to 99°C
Note 1)
Unrestricted
Note 3)
Mounting orientation
Valve
type
Style
N.C. N.O. C.O.
Normally closed
Normally open
Double acting
VNA01 VNA02 VNA03
Air operated
External pilot
solenoid
VNA11 VNA12
12
(P1)
2
(B)
1
(A)
10
(P2)
2
(B)
1
(A)
10
(P2)
12
(P1)
2
(B)
1
(A)
12
(P1)
2
(B)
1
(A)
12
(P1)
1
(A)
2
(B)
JIS Symbol
359
Series VNA
Process Valve: 2 Port Valve
For Compressed Air and Air-hydro Circuit Control
VNA
VNB
SGC
VNC
VNH
VND
VCC
7-02-37-VNA.qxd 09.10.1 1:26 PM Page 2
N.O.
Port 2(B)
Port 1(A)
Construction
N.C.
∗ C.O. type does not have a return spring u.
Working Principle
VNA01, 11 (N.C.)
When the pilot solenoid valve i is not energized (or when air is ex-
hausted from the port 12(P1) of the air operated style), the valve ele-
ment r linked to the piston t is closed by the return spring u.
앬 When valve element opens
When the pilot solenoid valve is energized (or when pressurized air
enters through the port 12(P1) of the air operated style), the pilot
air that has entered under the piston moves upward to open the
valve element.
앬 When valve element closes
When the power to the pilot solenoid valve is turned off (or when
fluid is exhausted from the port 12(P1) of the air operated style),
the pilot air under the piston is exhausted, and the return spring
closes the valve element.
VNA02, 12(N.C.)
In contrast with the N.C., when the power to the pilot solenoid valve is
turned off (or when air is exhausted from the port 10(P2) of the air op-
erated style), the valve is held open by the return spring. When the pi-
lot solenoid valve is energized (or when pressurized air enters
through the port 10(P2) of the air operated style), the valve element
closes.
VNA03 (C.O.)
The valve element of the C.O. type, which has no return spring, is in
an arbitrary position when air is exhausted through the ports 12(P1)
and 10(P2). When pressurized air enters the port 12(P1) (exhaust
from the port 10(P2)), the valve element opens, and it closes when
pressurized air enters the port 10(P2) (exhaust from the port 12(P1)).
Port 12(P1)
Port 10(P2)
Note) Parts e and r are for selection of valve
composition.
No.
Description
Aluminum alloy
Aluminum alloy
Material
Aluminum alloy
Aluminum alloy
Stainless steel
Piano wire
—
Platinum silver painted
Valve material (NBR, FKM, EPR)
Valve material (NBR, FKM, EPR)
Note
Platinum silver painted
Cover assembly
Body
Plate assembly
Valve element
Aluminum alloy —
—
—
—
Piston assembly
Travel spring
Return spring
Pilot solenoid valve
Component Parts
1
2
3
Note)
4
Note)
5
6
7
8
No.
3 FKM
EPR
NBR VN1-A3AA
VN1-A3AB
VN1-A3AC
VN1-4AA
VN1-4AB
VN1-4AC
VN2-A3AA
VN2-A3AB
VN2-A3AC
VN2-4AA
VN2-4AB
VN2-4AC
VN3-A3AA
VN3-A3AB
VN3-A3AC
VN3-4AA
VN3-4AB
VN3-4AC
VN4-A3AA
VN4-A3AB
VN4-A3AC
VN4-A4AA
VN4-A4AB
VN4-A4AC
VN5-A3AA
VN5-A3AB
VN5-A3AC
VN5-A4AA
VN5-A4AB
VN5-A4AC
VN6-A3AA
VN6-A3AB
VN6-A3AC
VN6-A4AA
VN6-A4AB
VN6-A4AC
VN7-A3AA
VN7-A3AB
VN7-A3AC
VN7-A4AA
VN7-A4AB
VN7-A4AC
FKM
EPR
NBR
Plate assembly
Seal
material
Seal
material
4
Valve disc
(Valve disc assembly
for 25A-50A)
8 Pilot solenoid valve SF4--23 (Refer to page 363 for details.)
Description
Part no.
VNA1A
-6A, 8A, 10A
VNA2
-10A, 15A
VO301-00 (Refer to page 363 for details.)
VNA3
-20A
VNA4
-25A
VNA5
-32A
VNA6
-40A
VNA7
-50A
Replacement Parts
360
Series VNA
Pg.9
Pilot port 12 (P1)
(Non-locking push type)
Manual override
Main port 1(A) (Back side 2(B))
Port size: refer to table below
65 (Grommet terminal: E)
∗
70 (Conduit terminal: T)
∗
74.5 (DIN terminal: D)
∗
2 x M4 x 0.7 depth 7
2 x ø4.5
Bracket
2 x Rc 1/8
(Back side 10 (P2))
127 (Conduit terminal: T DIN terminal: D)
108.2 (Grommet terminal: E)
106.7 (Grommet: G)
63 (Air operated)
Applicable cable O.D.
ø6 to ø8 (D.T)
Port size: 6A, 8A, 10A
∗ In the case of “EZ” or “TZ”, the length is longer
by 10 mm. For “DZ”, the length is longer by 17
mm.
Model
VNA1-6A
VNA1-8A
VNA1-10A
Main port
1(A), 2(B)
1
8
1
4
3
8
361
Series VNA
Process Valve: 2 Port Valve
For Compressed Air and Air-hydro Circuit Control
VNA
VNB
SGC
VNC
VNH
VND
VCC
4 x øP
∗ In the case of “EZ” or “TZ”, the
length is longer by 10 mm.
For “DZ”, the length is longer by
17 mm.
L (Conduit terminal: T DIN terminal: D)
K (Grommet terminal: E)
J (Grommet: G)
F (Air operated)
Applicable cable O.D.
ø6 to ø8 (D.T)
G (Grommet terminal: E)
∗
H (Conduit terminal: T)
∗
I (DIN terminal: D)
∗
L (Conduit terminal: T)
K (Terminal with indicator light: DL)
J (DIN terminal: D)
I (Conduit: C)
H (Grommet: G)
G (Air operated)
Applicable cable O.D.
ø6 to ø8 (D, DL)
Model
VNA2-10A
VNA2-15A
VNA3-20A
VNA4-25A
Main port
1(A), 2(B)
63
80
90
42
50
60
28
35
40
14
17.5
20
72.5
84
100
80.5
92
108
75
84
90
80
89
95
84.5
93.5
99.5
124
135.5
151.5
125.5
137
153
144.5
156
172
52
62
72
26
31
36
4.5
5.5
6.5
24.3
28.3
33.3
2.3
2.3
2.3
25
30
35
34
43
49
ABCDEFGH I JKLMNPQRSTU
55
60.5
73
1
3
8
1
2
3
4
Model
VNA5-32A
VNA6-40A
VNA7-50A
Main port
1(A), 2(B)
Pilot port
12(P1), 10(P2)
A
105
120
140
B
77
96
113
C
53
60
74
D
26.5
30
37
E
120.5
137
160
F
20
24
24
G
129.5
147
170
H
163
180.5
203.5
I
175.5
193
216
J
Note)
219 (215.5)
236 (233)
259 (256)
K
223
240.5
263.5
L
229.5
247
270
M
55
63
74
1
4
1
1
2
1
2
1
8
1
4
1
4
Note) ( ): CE compliant product (-Q)
Port size: 10A, 15A, 20A, 25A
Port size: 32A, 40A, 50A
2 x Rc 1/8
(Back side 10 (P2))
Pg.9
Pilot port 12 (P1)
Main port
(Back side 2 (B))
Port size: refer to
table below
Pilot port
12(P1), 10(P2)
Main port (Back side 2 (B))
Port size: refer to table below
(Non-locking push type)
Manual override
Manual override
(Non-locking push type)
362
Series VNA
7-02-37-VNA.qxd 09.10.1 1:26 PM Page 3
How to Order Pilot Solenoid Valves
Valve size 1/2/3/4
Valve size 5/6/7
Manual override
∗ Semi-standard
Non-locking push type
Non-locking push
type A (projecting)
Slotted locking
type B (tool required)
Nil
A
∗
B
∗
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
Coil rated voltage
∗ Semi-standard
Electrical entry/
With light/surge voltage suppressor
VO301 00
Coil rated voltage
∗ Semi-standard
Note 2) VO307 only
Note 3) Semi-standard
Note 1) When the electrical entry is T,
the pilot solenoid valve parts are
as follows;
VO301-00쏔T쏔-X302
With surge voltage suppressor
VO307 00 Q
Electrical entry
Accessory
Function plate for VO301 (D seal, with screw): DXT060-32-4A
Function plate for VO307 (D seal, with screw): DXT152-14-1A
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
Nil
S
None
Surge voltage suppressor
(Except “DZ, DL”)
CE compliant
G
C
T
Note 1)
D
DZ
Note 2)
DL
Note 3)
Grommet
Conduit
Conduit terminal
DIN terminal
DIN terminal with indicator light
CE
compliant
DIN terminal with light/
surge voltage suppressor
Light/Surge voltage
Suppressor
Coil rated voltage
SF4 5 D23
SF4 5 D23Q
E Grommet terminal
GS
Grommet with surge voltage suppressor
G Grommet
EZ
Grommet terminal
with light/surge voltage suppressor
T Conduit terminal
TZ
Conduit terminal
with light/surge voltage suppressor
D
DIN terminal
DZ
DIN terminal
with light/surge voltage suppressor
—
—
—
—
—
—
앬
앬
CE compliant
CE compliant
Note) Electrical entry:
D or DZ only
Note) Electrical entry:
D or DZ only
5D
5D
VNA
VNB
SGC
VNC
VNH
VND
VCC
363
Series VNA
Process Valve: 2 Port Valve
For Compressed Air and Air-hydro Circuit Control
External Pilot
Caution
Use with Air-hydro Unit
Caution
1. Piping
Surge pressure is generated between
the cylinder and the VNA during inter-
mediate stoppage.
To directly thread in the cylinder, use
durable fittings (Stainless steel square
nipples etc,) instead of ductile iron fit-
tings (JIS B 2301) or steel pipe fittings
(JIS B 2302).
When VNA is installed away from the
cylinder, use a high-pressure rubber
hose (JIS B 6349) instead of steel pipe,
when possible.
1. Air bleeding
Series VNA valves have no air bleeding
port. Bleed air comes from the middle
piping. Bleeding by a vacuum pump is
more effective.
2. Hydraulic fluid
Turbine oil, Grade 1 ISO VG32, with
petroleum hydraulic fluid is recommen-
ded.
3. Speed control valve
The combination shown in the following
table is recommended for best perfor-
mance of the Series VNA. (Piping: JIS K
6349 high pressure hose)
1. Pilot port piping
12(P1) and 10(P2) piping should be as
follows according to the model
Installing a silencer to the exhaust port
and the bleed port is recommended for
noise reduction and for dust entry preven-
tion.
When high temperature fluids are used,
use fittings and tubing with heat resistant
features.
(Self-align fittings, Teflon
®
tubing, Copper
tubing, etc.)
Port
12
(P1)
10
(P2)
Bleed
port
Bleed
port
External
pilot
External
pilot
External
pilot
Pilot
exhaust
External
pilot
External
pilot
VNA
02
VNA
03
VNA
1
1
2
VNA
01
Piping
Caution
Caution
Mounting Direction of Pilot
Solenoid Valve
With external pilot solenoids, the pilot solenoid
valves are not splash proof specifications, and
so care must be taken not to get fluid on one-
self such as when performing maintenance.
Warning
Direction of mounting
When replacing a valve, if an external pi-
lot solenoid valve is mounted in the wrong
direction, it may malfunction or leak air.
Caution
Caution
Combination between Series-
VNA and Speed control valve
(Series AS)
VNA
111
211
311
411
511
611
711
AS
420-03
420-04
500-06
600-10
800-12
900-14
900-20
Piping (I.D.)
B (
ø9.5)
B (
ø12.7)
B (
ø19.1)
B (
ø25.4)
B (ø31.8)
B (ø38.1)
B (ø50.8)
1
1
1
2
10A
15A
20A
25A
32A
40A
50A
3
8
1
2
3
4
1
4
1
2
Series VNA
Specific Product Precautions
Be sure to read before handling. Refer to front matters 42 and 43 for Safety Instructions,
and pages 17 to 19 for 2 Port Solenoid Valves for Fluid Control Precautions.
364
Power voltage and
electrical entry
(External pilot solenoid)
Construction
앬 Select the air operated or external pilot
solenoid styles. Valves come in N.C. (nor-
mally closed), N.O. (normally open), C.O.
(double acting), and N.C. 1 MPa (normal-
ly closed) types. Select the
proper one
according to the operating conditions.
Flow characteristics
(Air, Water)
Applicable fluids
앬 Refer to “Table (1)” to check that the de-
sired fluid is applicable.
앬 Select the body and sealing materials,
depending on the fluid.
앬 To find the flow rate of air or water, refer
to the table of flow rate characteristics on
page 10 to 16. Use the flow rate calcula-
tion equation to find the exact answer. Al-
though the flow rate is the same, the op-
erating pressure differs according to the
valve size. Therefore, select the proper
valve size from applicable valves.
앬 Refer to “Table (2)” to select the port size
of the threaded type (6A to 50A) and
flanges (32F to 50F).
앬 Select the AC/DC power source and
choose the electrical entry according to
“Table (3)”.
Wetted part Body material
Wetted part Seal material
Aluminum: L
NBR
: A
FKM
: B
EPR
: C
Copper alloy: Standard
NBR
: A
FKM
: B
EPR
: C
Stainless steel: S
NBR
: A
FKM
: B
EPR
: C
Fluid
Air (Standard, Dry)
Low vacuum (Up to –101kPa)
Carbon dioxide (CO2, 0.7 MPa or less)
Carbon dioxide (CO2, 0.7 to 1 MPa )
Nitrogen gas (N2)
Argon
Helium
Water (standard, up to 60°C)
Water (up to 99°C air operated type only)
Turbine oil
Spindle oil
Fuel oil Class 3 (C fuel oil)
Brake oil
Note)
Silicon oil
Naphtha
Ethylene glycol (up to 80°C)
Boiler water
Valve
size
1
2
3
4
5
6
7
6A 8A 10A 15A 20A 25A 32A 32F 40A 40F 50A 50F
Port size
Valve
size
Manual
override
1, 2, 3, 4
5, 6, 7
G
E C T D DL S Z L
Electrical entry
Light/Surge voltage suppressor
(Except “DL”)
(Only “T”)(Only “T”)
(Only “G”)
(Except “G”)
Note 1) When fluid permits application of multiple body and sealing materials, select the most suitable
one according to the ambient environment (FKM or EPR seal material for high temperature)
and other conditions (corrosion resistance and viscosity), etc.
Note 2) Test fluids to see if it will wash out cleaning liquid such as grease.
Note 3) Some brake oils are not allowed.
Caution
Air operated External pilot solenoid
Selection Procedure Table
(
1
)
Applicable Fluids Check List
Table
(
2
)
Combinations between Valve Size and Port Size
Table
(
3
)
Combinations between Electrical Entry and Light/Surge
Voltage Suppressor
Series VNB
Process Valve
2 Port Valve For Flow Control
Proper selection with body and sealing materi-
als permits application with a wide variety of flu-
ids such as air, water, oil, gas and vacuum.
A wide variety of
applicable fluids
Cylinder actuation by
external pilot air
Wide variations
N.C., N.O., C.O., types are available.
Screw-in type (6A to 50A) and the flange
(32F to 50F) are standardized.
[Option]
365
VNA
VNB
SGC
VNC
VNH
VND
VCC
VNB 15A 1
VNB 15A
Air operated
External pilot solenoid
2
2
1
1
A
A
1
0
T
Valve size
Thread type
Nil
F
N
T
Rc
G
NPT
NPTF
Valve type Port size
Manual override
Rated voltage
Orifice
dia.
(mm)
Symbol
Symbol
Symbol
1
N.C.
0.5 MPa
N.O.
1 MPa
C.O.
1 MPa
Port
size
Rc
ø7
ø11
ø15
ø11
1
6A
8A
10A
10A
15A
20A
25A
123
Note 1)
N.C.
1 MPa
4
2
ø15
ø14
3
ø20
ø16
Note 1) Air operated only
Note 2) The valve type symbols for vacuum pilot
type are 1 (N.C.) and 2 (N.O.) only.
ø25
4
32A
ø22
5
ø32
1B
32F
ø22
ø32
ø28
ø40
6
ø28
ø40
2
50A
ø33
7
ø50
2B
50F
ø33
ø50
1
8
1
4
3
8
3
8
1
2
3
4
1
4
1
1
4
Valve
size
1 to 4
Nil: Non-locking push type
Nil: Non-locking
push type
Valve
size
5 to 7
Note 2) Semi-standard
Note 1) Electrical entry: D or DZ
only
Note) Semi-standard
Seal material
A
B
C
NBR seals
FKM seals
EPR seals
Flange
40A
1B
40F
1
2
1
1
2
Flange
Flange
Body material option
Nil
Standard
S
∗
Stainless steel body
L
∗
Aluminum body
∗ Threaded port only
Electrical entry/With light/surge voltage suppressor
E
GS
G
Symbol Electrical entry Valve size
Valve size
1 to 4
Valve size
5 to 7
EZ
T
TZ
D
DZ
G
GS
C
T
TS
TZ
Note 1)
TL
Note 1)
D
DL
Grommet terminal
Grommet with surge voltage suppressor
Grommet
Grommet terminal with light/surge voltage suppressor
Conduit terminal
Conduit terminal with light/surge voltage suppressor
DIN terminal
DIN terminal with light/surge voltage suppressor
Grommet
Grommet with surge voltage suppressor
Conduit
Conduit terminal
Conduit terminal with surge voltage suppressor
Conduit terminal with light/surge voltage suppressor
Conduit terminal with indicator light
DIN terminal
DIN terminal with indicator light
Note 1) Except rated voltage 6, 7, 9.
Note 2) For valve sizes 5 to 7 of the DZ DIN terminal with light/surge voltage
suppressor, be sure to add suffix -X200 at the end of the part number.
(For CE compliant product, -X200 is not required.) In this case, the
pilot solenoid valve is VO307-DZ.
Graph (4) VNB Pilot Pressure
(N.O. and C.O. types)
2
3
Bracket (valve size: 1/2/3/4.)
Nil
B
Note)
None
With bracket
2 to 4
Process Valve: 2 Port Valve
For Flow Control
Series VNB
Pilot system option
Nil
V
Standard
Vacuum pilot type
Note) Symbol V is for vacuum pilot
valve specification, for both
main pressure and pilot
pressure, valve size 2 to 7.
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
240 VAC 50/60 Hz
100 VAC 50/60 Hz
24 VDC
12 VDC
3
2
1
4
5
6
7
9 Other
A: Non-locking
push type A
(projecting)
Note)
B:
Slotted locking type B
(tool required)
Note)
CE compliant
Nil
Q
—
CE compliant
∗
∗ Electrical entry: D or DZ only
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.1
Pilot pressure (MPa)
Operating pressure (MPa)
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
The pilot pressure should be within the
range of
A
against the operating pres-
sure.
A
앪
Note 2)
Note 2)
Note 2)
Note 2)
Note 2)
Note 2)
CE compliant
DZ
D
DIN terminal with light/surge voltage suppressor
DIN terminal
Valve size
1 to 7
How to Order
366
Refer to Table (1) for avail-
ability.
Note)
Only valve sizes 1, 2, 3 and 4.
Shipped after assembled at our factory.
Bracket part no.
Valve size 1: VN1-A16 (with thread)
Valve sizes 2 to 4: VN-16
[Option]
* Electrical entry: D or DZ
only.
Note) The flange should be JIS B 2210 10K (ordinary style) or its equivalent.
Note) Flow direction should be from port 1(A) to port
2(B) for vacuum applications.
Port size
Rc
Flow characteristics
Measured by air
Measured by water
Mass (kg)
Air operated
External pilot solenoid
b
C
[dm
3
/ (bar
.
sec) ]
Orifice
dia.
ø (mm)
Model
1
8
1
4
3
8
1
2
3
4
VNB1-6A
VNB1-8A
VNB1-10A
VNB24-10A
VNB2-10A
VNB24-15A
VNB2-15A
VNB34-20A
VNB3-20A
7
11
15
11
15
14
20
0.29
0.17
0.18
0.40
0.32
0.40
0.24
0.42
0.13
Cv
0.80
1.0
1.1
2.6
4.0
2.6
4.8
5.4
7.4
Av x 10
-6
m
2
25
29
31
71
110
76
140
140
270
3.3
4.6
4.7
9.6
17
9.6
19
18
35
0.3
0.6
0.9
0.4
0.7
1.0
Model
JIS Symbol
Specifications (Vacuum pilot type)
Specifications
Fluid Water/Oil/Air/Vacuum, etc.
–5 to 60°C
Note 1)
–5 to 50°C
Note 1)
(Air operated type: 60°C)
1.5 MPa
Low vacuum to 0.5 MPa
Low vacuum to 1 MPa
0.25 to 0.7 MPa
0.1 + 0.25 x (Operating pressure) to
0.25 + 0.25 x (Operating pressure) MPa
Note 3)
Refer to “Graph (1)” on page 366.
Not required (Use turbine oil Class 1 ISO VG32, if lubricated.
Note 2)
)
–5 to 50°C (Air operated type: 60°C)
–5 to 99°C
Note 1)
(Water, Oil etc. Air Operated only)
Ambient temperature
Unrestricted
Note 5)
Mounting orientation
Proof pressure
Applicable
pressure range
External pilot
air
Lubrication
Temperature
Pressure
VNBA, VNB1
Fluid
temperature
No freezing
Lubrication is not allowed in the case of seal material EPR.
Adjust the operating pressure range from 0.125 MPa to 0.275 MPa for low vacuum.
The pressure differential between Port 1 (A) and 2(B) must not exceed the maximum op-
erating pressure.
For external pilot solenoid, it is recommended that the pilot solenoid valve be oriented
either vertically upward or horizontally.
Note 1)
Note 2)
Note 3)
Note 4)
Note 5)
VNB1
VNB 
VNB0
B
C
B
C
2
3
4
VNB 
1
4
VNB 
2
3
Vacuum
–101 to – 47.9 kPa
Fluid
–101 kPa to Atmospheric pressure
Pilot pressure range
Operating pressure range
Option Specifications
Vacuum pilot valve VNBV
(Valve size 2 to 7)
Note 4)
Port size
Flow characteristics
Mass (kg)
Air operated
External pilot solenoid
Orifice dia.
ø (mm)
Model
VNB44-25A
VNB4-25A
VNB54-32A
VNB5-32A
VNB54-32F
VNB5-32F
VNB64-40A
VNB6-40A
VNB64-40F
VNB6-40F
VNB74-50A
VNB7-50A
VNB74-50F
VNB7-50F
Rc
Flange
Note)
50
–
40
–
32
–
–
16
25
22
32
22
32
28
40
28
40
33
50
33
50
Cv
7
12
11
18
11
18
19
28
19
28
29
43
29
43
Effective area (mm
2
)
130
220
210
320
210
320
330
500
330
500
520
770
520
770
1.4
2.5
5.7
4.1
7.7
6.3
11.4
1.5
2.6
5.8
4.2
7.8
6.4
11.5
1
4
1
2
1
1
–
2
–
–
1
Valve
type
Type
Air operated
N.C. N.O. C.O.
Normally closed
Normally open
Double acting
VNB0 VNB02 VNB03
External pilot
solenoid
VNB1 VNB12
1
4
1
4
12
(P1)
2
(B)
1
(A)
10
(P2)
2
(B)
1
(A)
12
(P1)
10 (P2)
2
(B)
1
(A)
12
(P1)
2
(B)
1
(A)
12
(P1)
2
(B)
1
(A)
It is used when the valve is to be operated by
the main vacuum in the absence of pressurized
air.
Valve
type
Type
Air operated
N.C.
Normally closed
N.O.
Normally open
VNB01V VNB02V
VNB11V VNB12V
External pilot
solenoid
10
(P2)
2
(B)
1
(A)
12
(P1)
2
(B)
1
(A)
12
(P1)
2
(B)
1
(A)
12
(P1)
2
(B)
1
(A)
JIS Symbol (Vacuum pilot type)
Note 1) For “How to Order” pilot solenoid valves, refer to page 368.
Note 2) Vacuum pilot type pilot solenoid valves will become VO301V-00.
Note 3) Vacuum pilot type CE compliant pilot solenoid valves will become VO307V--Q.
Pilot Solenoid Valve Specifications
Port size
Pilot solenoid valve SF4--23
Allowable voltage fluctuation
Temperature rise
Power consumption
DC
Holding
Inrush
Manual override
Apparent
power
AC
Electrical entry
Coil rated
voltage (V)
AC (50/60 Hz) 100 V, 200 V, other voltage (Semi-standard)
24 V, other voltage (Semi-standard)
–15% to +10% of rated voltage
35°C or less (when rated voltage is applied.)
5.6 VA (50 Hz), 5.0 VA (60 Hz) 12 VA (50 Hz), 10.5 VA (60 Hz)
3.4 VA (50 Hz), 2.3 VA (60 Hz) 7.5 VA (50 Hz), 6 VA (60 Hz)
12.7 VA (50 Hz), 10.7 VA (60 Hz)
7.6 VA (50 Hz), 5.4 VA (60 Hz)
1.8 W (without light), 2W (with light)
4.8 W (without light), 5 W (with light)
Non-locking push type
Other (Semi-standard)
Non-locking push type
DC
6A to 25A
32A to 50A, 32F to 50F
VO301-00
Grommet, Grommet
terminal, Conduit
terminal, DIN terminal
Grommet, Conduit,
DIN terminal,
Other (Option)
32A to 50A, 32F to 50F, CE compliant
VO307-00
D
DZ
-Q
DIN terminal
70°C or less (when rated voltage is applied.) 50°C or less (when rated voltage is applied.)
367
Series VNB
Process Valve: 2 Port Valve
For Flow Control
VNA
VNB
SGC
VNC
VNH
VND
VCC
How to Order Pilot Solenoid Valves
Valve size 1/2/3/4 Valve size 5/6/7 and vacuum pilot type
Coil rated voltage
∗ Semi-standard
Manual override
∗ Semi-standard
Electrical entry/With indicator light/
surge voltage suppressor
E Grommet terminal
GS
Grommet with surge voltage suppressor
G Grommet
EZ
Grommet terminal with light/surge voltage suppressor
T
Conduit terminal
TZ
Conduit terminal with light/surge voltage suppressor
D
DIN terminal
DZ
DIN terminal with light/surge voltage suppressor
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
Non-locking push type
Non-locking push type A (projecting)
Slotted locking type B (tool required)
Nil
A
∗
B
∗
VO301 00
Coil rated voltage
Body option
∗ Semi-standard
With surge voltage suppressor
CE compliant
Electrical entry
VO307 Q
Accessory
Function plate for VO301 (D sealing, with thread): DXT060-32-4A
Function plate for VO307 (D sealing, with thread): DXT152-14-1A
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
Nil
S
Surge voltage suppressor (Except “DZ, DL”)
None
Grommet
Conduit
Conduit terminal
DIN terminal
DIN terminal with light/surge voltage suppressor
∗
DIN terminal with indicator light
CE compliant
G
C
T
Note 1)
D
DZ
Note 2)
DL
Note 3)
Standard
Vacuum pilot
Nil
V
368
Series VNB
Port 12 (P1)
Port 10 (P2)
Port 1 (A)
Port 2 (B)
N.C. N.O.
No.
3
4
7
FKM
EPR
NBR
FKM
EPR
NBR
Plate
assembly
Seal
material
Seal
material
Valve element
Pilot solenoid valve SF4--23 (Refer to the table below.)
Description
Part no.
VNB1

-6A
,
8A
,
10A
VO301-00 (Refer to the table below.)
VN2-A3BA
VN2-A3BB
Refer to
Note 2)
VN2-A3BC
VN2-4BA
VN2-4BB
VN2-4BC
VNB2

-10A, 15A
VN3-A3BA
VN3-A3BB
VN3-A3BC
VN3-4BA
VN3-4BB
VN3-4BC
VNB3

-20A
VN4-A3BA
VN4-A3BB
VN4-A3BC
VN4-4BA
VN4-4BB
VN4-4BC
VNB4

-25A
VN5-A3BA
VN5-A3BB
VN5-A3BC
VN5-A4BA
VN5-A4BB
VN5-A4BC
VNB5

-32A, 32F
VN5-A3BA
VN5-A3BB
VN5-A3BC
VN5-A4BA-3
VN5-A4BB-3
VN5-A4BC-3
VNB5
4
-32A, 32F
VN6-A3BA
VN6-A3BB
VN6-A3BC
VN6-A4BA
VN6-A4BB
VN6-A4BC
VNB6

-40A, 40F
VN6-A3BA
VN6-A3BB
VN6-A3BC
VN6-A4BA-3
VN6-A4BB-3
VN6-A4BC-3
VNB6
4
-40A, -40F
VN7-A3BA
VN7-A3BB
VN7-A3BC
VN7-A4BA
VN7-A4BB
VN7-A4BC
VNB7

-50A, 50F
VN7-A3BA
VN7-A3BB
VN7-A3BC
VN7-A4BA-3
VN7-A4BB-3
VN7-A4BC-3
VNB7
4
-50A, 50F
Note 1) In the case of body options “S” and “L”, the materials of the part nos. e and r are as follows: (Example): VN1-A3BA
However all brackets of valve element VNB 1 to 4 are made of stainless steel. (No need to add options “S” and “L”.)
Note 2) Please request a factory repair.
Replacement Parts
∗ C.O. type does not have a return
spring y.
Working Principle (Vacuum pilot type is excluded)
1
4
1
4
VNB0 , 1 (N.C.)
When the pilot solenoid valve u is not energized (or when air is ex-
hausted from the port P1 of the air operated type), the valve element
r linked to the piston t is closed by the return spring y.
앬
When valve opens
When the pilot solenoid valve is energized (or when pressurized air
enters through the port P1 of the air operated style), the pilot air that
has entered under the piston moves upward to open the valve ele-
ment.
앬
When valve closes:
When the power to the pilot solenoid valve is turned off (or when
fluid is exhausted from the port P1 of the air operated style), the pi-
lot air under the piston is exhausted, and the return spring closes
the valve element.
VNB
02, 12 (N.O.)
In contrast with the N.C., when the power to the pilot solenoid valve is
turned off (or when air is exhausted from the port P2 of the air opera-
ted style), the valve is held open by the return spring. When the pilot
solenoid valve is energized (or when pressurized air enters through
the port P2 of the air operated style), the valve element closes.
VNB
03 (C.O.)
The valve element for the C.O. type, which has no return spring, is in
an arbitrary position when air is exhausted through the ports P1 and
P2. When pressurized air enters the port P1 (exhaust from the port
P2), the valve element opens, and it closes when pressurized air en-
ters the port P2 (exhaust from the port P1).
No.
1
2
3
Note 1)
4
Note 1)
5
6
7
Description
Aluminum alloy
Brass
Note 2)
Material
Bronze
Note 2)
Valve material (NBR, FKM, EPR)
Aluminum alloy
Piano wire
—
Platinum silver painted
Valve material (NBR, FKM, EPR)
Note
Clear coated
Stainless steel or brass
Note 2)
—
—
—
Cover assembly
Body
Plate assembly
Valve element
Piston assembly
Return spring
Pilot solenoid valve
Component Parts
Note 1) Parts e and r are for selection of valve composition.
Note 2) The body option “S” is stainless steel, and “L” is aluminum.
32 to 50 come
in valve element
assembly
A
F
A
F
L: Aluminum, S: Stainless steel
Note
1)
Note
1)
Construction
Note 2) VO307 only
Note 3) Semi-standard
Coil rated voltage
Note 1) When the electrical entry is T, the pilot
solenoid valve parts are as follows;
VO301-00T-X302
Light/Surge voltage
suppressor
SF4 5 D23
SF4 5 D23
CE compliant
Q
* Electrical entry:
D or DZ only
—
—
—
—
—
—
CE compliant
* Electrical entry:
D or DZ only
Series VNB
Process Valve: 2 Port Valve
For Flow Control
Model
VNB1-6A
VNB1-8A
VNB1-10A
Main port
1(A), 2(B)
1
8
1
4
3
8
∗ In the case of “EZ” or “TZ”, the length is longer by 10 mm.
For “DZ”, the length is longer by 17 mm.
Port size: 6A, 8A, 10A
Standard
2 x ø4.5
2 x M4 x 0.7 depth 7
2 x (Back side 10 (P2) )
Pilot port 12(P1)
8
1
Main port 1(A) (Back side 2 (B))
Port size: refer to table below
Manual override
(Non-locking push type)
65 (Grommet terminal: E)
∗
70 (Conduit terminal: T)
∗
74 (DIN terminal: D)
∗
Pg.9
127
Applicable cable O.D.
ø6 to ø8 (D.T)
(D.T)
(Conduit terminal: T, DIN terminal: D)
108.2 (Grommet terminal: E)
106.7 (Grommet: G)
63 (Air operated)
Bracket
369
VNA
VNB
SGC
VNC
VNH
VND
VCC
VNB2-10A
VNB2-15A
VNB3-20A
VNB4-25A
63
80
90
42
50
60
28
35
40
14
17.5
20
72.5
84
100
80.5
92
108
75
84
90
80
89
95
84.5
93.5
99.5
124
135.5
151.5
125.5
137
153
144.5
156
172
52
62
72
26
31
36
4.5
5.5
6.5
24.3
28.3
33.3
2.3
2.3
2.3
25
30
35
34
43
49
Model
Main port
1(A), 2(B)
ABCDEFGH I JKLMNPQRSTU
55
60.5
73
3
8
1
2
3
4
1
VNB2V-10A
VNB2V-15A
VNB3V-20A
VNB4V-25A
63
80
90
42
50
60
28
35
40
14
17.5
20
72.5
84
100
80.5
92
108
75
80
81
87
92
93
97
102
103
114
125.5
141.5
126.5
138
154
170.5
182
198
173.5
185
201
180.5
192
208
52
62
72
26
31
36
4.5
5.5
6.5
24.3
28.3
33.3
2.3
2.3
2.3
25
30
35
34
43
49
Model
Main port
1(A), 2(B)
ABCDEFGH I JKLMNPQRSTUVW
55
60.5
73
3
8
1
2
3
4
1
Port size: 10A, 15A, 20A, 25A
Standard
Port size: 10A, 15A, 20A, 25A
Vacuum pilot
Pg.9
Manual override
(Non-locking push type)
4 x øP
Pg.9
(D, DL)
Manual override
(Non-locking push type)
4 x øR
2 x (Back side 10 (P2) )
8
1
Main port 1(A)
(Back side 2 (B))
Port side: refer to table below
Pilot port 12(P1)
Applicable cable O.D.
ø6 to ø8 (D.T)
(D.T)
Bracket
L (Conduit terminal: T, DIN terminal: D)
K (Grommet terminal: E)
J (Grommet: G)
F (Air operated)
G (Grommet terminal: E)
∗
H (Conduit terminal: T)
∗
I (DIN terminal: D)
∗
∗ In the case of “EZ” or “TZ”,
the length is longer by 10
mm.
For “DZ”, the length is lon-
ger by 17 mm.
N (Conduit terminal: T)
M (Terminal with indicator light: DL)
L (DIN terminal: D)
K (Conduit: C)
J (Grommet: G)
F (Air operated)
Applicable cable O.D.
ø6 to ø8 (D, DL)
Bracket
G (Grommet: G, Conduit: C)
H (Conduit terminal: T)
I
(DIN terminal: D, DIN
terminal with indicator light: DL)
Main port 1(A)
(Back side 2 (B))
Port side: refer to table below
2 x (Back side 10 (P2) )
8
1
Pilot port 12(P1)
370
Series VNB
Series VNB
Specific Product Precautions
Be sure to read before handling. Refer to front matters 42 and 43 for Safety Instruc-
tions, and pages 17 to 19 for 2 Port Solenoid Valves for Fluid Control Precautions.
External Pilot
Pilot port P1 and P2 piping
Please arrange P1 and P2 piping as follows according to the
model.
Caution
Mounting Direction of Pilot Solenoid Valve
With external pilot solenoids, the pilot solenoid valves are not
splash proof specifications, and so care must be taken not to get
fluid on oneself such as when performing maintenance.
Warning
Direction of mounting
When replacing a valve, if an external pilot solenoid valve is
mounted in the wrong direction, it may malfunction or leak air.
Caution
Piping
When high temperature fluids are used, use fittings and tube with
heat resistant features.
(Self-align fittings, Teflon
®
tubing, Copper piping, etc.)
Caution
Vacuum Pilot
When using the VNB 1V N.C. vacuum pilot, maintain the
specified pilot pressure by providing a tank with an appropriate
capacity or by acquiring the pilot pressure from an area near the
vacuum pump.
Caution
0
1
P1
Vacuum pump
Standard
Vacuum pilot
Installing a silencer to the exhaust port and the bleed port is recommen-
ded for noise reduction and for dust entry prevention.
Port
12
(P1)
Bleed port
Bleed portExternal pilot
External pilot External pilot Pilot exhaust
External pilot External pilot
VNB02 VNB03 VNB1
1
2
4
VNB0
1
4
10
(P2)
Port
Bleed port
Bleed portExternal pilot
External pilot
Pilot exhaust
External pilot
VNB02V VNB1 V
1
2
VNB01V
12
(P1)
10
(P2)
372
Series VNC
Coolant Valve
Air Operated/External Pilot Solenoid
Cylinder actuation by pilot air
Wide selection of port
size and variations
Threaded type (6A to 50A)
Flange type (32F to 80F)
Low water hammer
For details, refer to page 407.
Large valve capacity
Av factor 30 x 10
-6
to 1600 x 10
-6
(VNC1 to VNC7)
Cv factor 49 to 100
(VNC8 to VNC9)
399
[Option]
VNA
VNB
SGC
VNC
VNH
VND
VCC
VNC 15A 1
VNC 15A
(Except valve size 8, 9)
Air operated
External pilot solenoid
2
2
1
1
A
A
1
0
T
Seal material
Valve size
A
B
NBR seals
FKM seals
Bracket (Valve size: 1/2/3/4)
Nil
B
Note)
None
With bracket (VN쏔-16)
Valve type Port size
Manual override
Rated voltage
Orifice
diameter
(mm)
Symbol
Symbol
Symbol
1
1
N.C.
0.5 MPa
N.O.
1 MPa
N.C.
1 MPa
Port
size
Rc
ø15 (ø11)
ø7
ø20 (ø14)
2
1
6A
8A
10A
10A
15A
20A
25A
32A
32F
40A
124
3
ø25 (ø16)4
ø32 (ø22)5
ø40 (ø28)6
Values in parentheses are N.C. at 1 MPa.
40F
2
50A
ø50 (ø33)7
50F
65F
ø65 (ø45)8
80F
ø80 (ø56)9
1
8
1
4
3
8
3
8
1
2
3
4
1
4
1
1
2
Note 2)
3 110 VAC 50/60 Hz
2 200 VAC 50/60 Hz
1 100 VAC 50/60 Hz
Nil Air operated
Note 2)
4 220 VAC 50/60 Hz
5 24 VDC
Note 2)
6 12 VDC
Note 2)
7 240 VAC 50/60 Hz
Note 2)
9 Other
Valve
size
1
Valve
size
2 to 9
∗ Semi-standard
1B
1
4
Flange
1B
1
2
Flange
2B
Flange
3B
Flange
2B
1
2
Flange
Thread type
Nil
F
N
T
Rc
G
NPT
NPTF
Note)
Only valve sizes 1, 2, 3 and 4. Shipped
after assembled at our factory.
Bracket part no.
Valve size 1: VN1-A16 (with thread)
Valve sizes 2 to 4: VN첸-16
2 to 4
Electrical entry/With light/surge voltage suppressor
Symbol Valve size
Valve size
1
Valve size
2 to 9
Valve size
1 to 9
Grommet terminal
Grommet with surge voltage suppressor
Grommet
Electrical entry
Grommet terminal with light/surge voltage suppressor
Conduit terminal
Conduit terminal with light/surge voltage suppressor
DIN terminal
DIN terminal with light/surge voltage suppressor
Conduit terminal
Conduit terminal with surge voltage suppressor
Conduit terminal with light/surge voltage suppressor
Conduit terminal with indicator light
Note 1) Except rated voltage: 6, 7 and 9.
Note 2)
For valve sizes 2 to 9 of the D DIN terminal and the DZ DIN terminal with light/surge
voltage suppressor, be sure to add suffix -X200 at the end of the part number. (For
CE compliant product, -X200 is not required.) In this case, the pilot solenoid valve is
VO307-첸D첸.
E
GS
G
EZ
T
TZ
D
DZ
T
TS
Note1)
TZ
Note1)
TL
D DIN terminal
∗
DIN terminal with light/surge voltage suppressor
∗
DZ
Nil: Non-locking push type
Nil: Non-locking push type
A: Non-locking
push type A
(projecting)
B: Slotted locking type B
(tool required)
Coolant Valve:
Air Operated/External Pilot Solenoid
Series VNC
∗
∗
CE compliant
Note)
Electrical entry: D or DZ only
Nil
Q
—
CE compliant
Note 2) Semi-standard
Note 1) Electrical entry: D or DZ
only
Note 2)
CE compliant
400
How to Order
Note) CE compliant: For D or
DZ only
[Option]
Fluid
temperature
Applicable
pressure range
External
pilot air
Pressure
Fluid (Main piping)
VNCA
VNC
B
VNC
1
VNC2
Ambient temperature
Proof pressure
Mounting orientation
Lubrication
Temperature
Coolant
Note 2)
–5 to 60°C
Note 1)
–5 to 50°C (Air operated type: 60°C)
Note 1)
1.5 MPa
0 to 0.5 MPa
0 to 1 MPa
0.25 to 0.7 MPa
0.1 + 0.25 x (Operating pressure) to 0.7 MPa Refer to “Graph (1)”.
Not required (Use turbine oil Class 1 ISO VG32, if lubricated.)
–5 to 50°C (Air operated type: 60°C)
Note 1)
Unrestricted
Note 3)
–5 to 99°C(Air operated type only)
Note 1)
VNC
1
4
VNC
2
4
Note 1) No freezing
Note 2) This product cannot be used in water.
Note 3) For external pilot solenoid, it is recommended that the pilot sole-
noid valve be oriented either vertically upward or horizontally.
Specifications
Note) The companion flange is JIS B 2210 10K (standard) or its equivalent.
Port size
Flow characteristics
Mass (kg)
Air
operated
External pilot
solenoid
Orifice dia.
ø (mm)
Model
1
8
1
4
3
8
1
2
3
4
1
4
1
2
1
1
VNC1-6A
VNC1-8A
VNC1-10A
VNC2 4 -10A
VNC2-10A
VNC2 4 -15A
VNC2-15A
VNC3 4 -20A
VNC3-20A
VNC4 4 -25A
VNC4-25A
VNC5 4 -32A
VNC5-32A
VNC5 4 -32F
VNC5-32F
VNC6 4 -40A
VNC6-40A
VNC6 4 -40F
VNC6-40F
VNC7 4 -50A
VNC7-50A
VNC7 4 -50F
VNC7-50F
Threaded
Note)
Flange
50
40
32
7
11
15
11
15
14
20
16
25
22
32
22
32
28
40
28
40
33
50
33
50
Av x 10
-6
m
2
30
32
36
95
120
110
140
170
260
220
370
400
560
400
560
630
820
720
960
990
1500
1000
1600
0.2
0.5
0.8
1.2
2.2
5.0
3.6
6.8
5.5
10.2
0.3
0.7
1.0
1.4
2.4
5.2
3.8
7.0
5.7
10.4
2
1
Model
–
–
–
–
–
–
–
–
–
–
–
–
Port size
Flow characteristics
Cv
Orifice
dia.
ø (mm)
Model
VNC814-65F
VNC811-65F
VNC914-80F
VNC911-80F
Flange
Note)
65
80
45
65
56
80
49
70
73
100
Effective area
(mm
2
)
880
1260
1400
1800
Mass (kg)
External pilot
solenoid
15.7
21.2
Note) The companion flange is JIS B 2210 10K (standard) or its equivalent.
010.1
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Pilot pressure (MPa)
Operating pressure (MPa)
A
Pilot pressure should be
within the range of
A
against
the operating pressure.
Graph (1) VNC2Pilot Pressure (N.O. type)
Model
Pilot solenoid valve
Electrical entry
Coil rated
voltage (V)
AC
(50/60 Hz)
DC
DC
Allowable voltage fluctuation
Temperature rise
Apparent
power
AC
Inrush
Holding
Power
consumption
Manual override
VNC1
SF4--23
VNC2 to 9
VNC2
to 9
(CE compliant)
VO301-00T-X302
VO307-00
D
DZ
-Q
Grommet
Grommet terminal
Conduit terminal
DIN terminal
Conduit terminal
DIN terminal
100 V, 200 V, Other voltage (Option)
24 V, Other voltage (Option)
–15% to +10% of rated voltage
5.6 VA (50 Hz)
5.0 VA (60 Hz)
12 VA (50 Hz)
10.5 VA (60 Hz)
3.4 VA (50 Hz)
2.3 VA (60 Hz)
7.5 VA (50 Hz)
6 VA (60 Hz)
12.7 VA (50 Hz)
10.7 VA (60 Hz)
7.6 VA (50 Hz)
5.4 VA (60 Hz)
35°C or less (when rated
voltage is applied.)
1.8 W (without light),
2 W (with light)
4.8 W (without light), 5 W (with light)
Non-locking push type,
Other (Option)
Non-locking push type
Note) Refer to page 406 for how to order pilot solenoid valves.
Pilot Solenoid Valve Specifications
70°C or less (when rated
voltage is applied.)
50°C or less (when rated
voltage is applied.)
Series VNC
Coolant Valve:
Air Operated/External Pilot Solenoid
Valve type
Operation
N.C. N.O.
Air operated
External pilot
solenoid
VNC0 VNC02
VNC1 VNC12
1
4
1
4
12
(P1)
1 2
10
(P2)
1 2
12
(P1)
1 2
12
(P1)
1 2
JIS Symbol
401
VNA
VNB
SGC
VNC
VNH
VND
VCC
7-02-40-VNC.qxd 09.10.1 1:24 PM Page 2
Note) 3, 5 components determine the valve composition.
No.
2
3
1
Description
Aluminum alloy
Iron
Material
Cast iron
4
Stainless steel
6
Aluminum alloy
7
Piano wire
8
Stainless steel
Platinum silver painted
Valve composition, NBR, FKM
Note
Plated
5
NBR, FKM 32A to 50A are O-ring.
9
—
Cover assembly
Body assembly
Plate assembly
Valve element
Valve cover
Piston assembly
Return spring
Spiral pin
Pilot solenoid valve
No.
3
FKM
NBR
NBR VN2-A3CA
Part no.
VN2-A3CB
VN2-12CA
VN2-12CB
VN3-A3CA
VN3-A3CB
VN4-A3CA
VN4-A3CB
VN4-12CA
VN4-12CB
VN4-60-1 VN5-60-1 VN6-60-1 VN7-60-1Refer to Note 2)VN2-60-1
VN5-A3CA
VN5-A3CB
AS568-010 AS568-011 AS568-012
VN6-A3CA
VN6-A3CB
VN7-A3CA
VN7-A3CB
FKM
Plate ass'y
Seal
material
Seal
material
5
Valve cover
(32A to 50A are O-ring.)
8 Spiral pin
Description VNC1
-6A, 8A, 10A
9 Pilot solenoid valve SF4--23 VO301-00T-X302 (Refer to page 406 for part no.)
VNC2
-10A, 15A
VNC3
-20A
VNC4
-25A
VNC5
-32A, 32F
VNC6
-40A, 40F
VNC7
-50A, 50F
No.
3
FKM
NBR
Part no.
Plate assembly
Seal
material
8 Spiral pin
Description
VN7-60-1
9 Pilot solenoid valve
VO301-00T-X302 (Refer to page 406 for part no.)
VN8-A3CA
VN8-A3CB
VNC811-65F
VNC911-80F
VN9-A3CA
VN9-A3CB
Construction
N.C.
Component Parts
Replacement Parts
Replacement Parts: Applicable Flange
u
o
i
t
r
w
u
y
e
r
q
t
i
Refer to Note 1)
Note 1) Request factory repair.
Note 2) For VNC3 use VN3-60-1, and for VNC34 use VN2-60-1.
1
2
In the case of 32A to 50A
앬 N.C. (Return spring normally closed)
When the pilot solenoid valve o is not energized (or when air is ex-
hausted from the port 12(P1) for air operated style), the valve body
r connected to the piston y is closed by the return spring u.
When valve body opens
When the pilot solenoid valve is energized (or when pressurized
air enters through the port 12(P1) of the air operated style), the pi-
lot air that has entered under the piston moves upward to open
the valve element.
When valve body closes
When the power to the pilot solenoid valve is turned off (or when
fluid is exhausted from the port 12(P1) of the air operated style),
the pilot air under the piston is exhausted, and the return spring
closes the valve element.
N.O.
앬 N.O. (Return spring normally open)
In contrast with the N.C., when the pilot solenoid valve is not
energized (or when air is exhausted from the port 10(P2) of the air
operated style), the valve body is opened by the return spring.
When the pilot solenoid valve is energized (or when pressurized
air enters through the port 10(P2) of the air operated style), the
valve body closes.
Port 12(P1) Port 10(P2)
Port 1 Port 2
402
Series VNC
Model
VNC1-6A
VNC1-8A
VNC1-10A
Main port 1, 2
1
8
1
4
3
8
Threaded Type/Port size: 6A, 8A, 10A
∗ In the case of “EZ” or “TZ” or “DZ”, the length is longer by 9 mm.
Pilot port 12(P1)
2 x (Back side 10(P2))
8
1
Manual override
(Non-locking push type)

65 (Grommet terminal: E)
∗
70 (Conduit terminal: T)
∗
74 (DIN terminal: D)
∗
Main port 1 (Back side port 2)
Port size: refer to table below
45
27
18
2 x ø4.5
24
1
24
(
1.6
)
12.5
39.5
6
Bracket
2 x M4 x 0.7 depth 7
50
40
18
127 (Conduit terminal: T, DIN terminal: D)
108.2 (Grommet terminal: E)
106.7 (Grommet: G)
63 (Air operated)
403
Series VNC
Coolant Valve:
Air Operated/External Pilot Solenoid
VNA
VNB
SGC
VNC
VNH
VND
VCC
Threaded Type/Port size: 10A, 15A, 20A, 25A
Threaded Type/Port size: 32A, 40A, 50A
2 x (Back side 10(P2))
8
1
Main port 1 (Back side port 2)
Port size: refer to table below
Pilot port 12(P1)
Manual override
(Non-locking push type)
Main port 1
(Back side port 2)
Port size: refer to table
below
Pilot port
12(P1), 10(P2)
Port size: refer to table
below
Manual override
(Non-locking push type)
Electrical entry port: G
1
/2
Bracket
Electrical entry port: G
1
/2
Model
VNC2-10A
VNC2-15A
VNC3-20A
VNC4-25A
Main port
1, 2
A
63
63
80
90
B
42
42
50
60
C
28
28
35
40
D
14
14
17.5
20
E
72.5
72.5
84
100
F
80.5
80.5
92
108
H
87
87
92
93
J
Note)
180.5 (166.5)
180.5 (166.5)
192 (178)
208 (194)
K
148
148
159.5
175.5
L
52
52
62
72
M
26
26
31
36
N
4.5
4.5
5.5
6.5
P
24.3
24.3
28.3
33.3
Q
2.3
2.3
2.3
2.3
R
25
25
30
35
S
34
34
43
49
T
55
55
60.5
73
3
8
1
2
3
4
1
Model
VNC5-32A
VNC6-40A
VNC7-50A
Main port
1, 2
Pilot port
12
(
P1
)
, 10
(
P2
)
A
105
120
140
B
77
96
113
C
53
60
74
D
26.5
30
37
E
120.5
137
160
F
20
24
24
H
129.5
147
170
J
Note)
229.5 (215.5)
247 (233)
270 (256)
K
197
214.5
237.5
L
55
63
74
1
4
1
2
1
1
2
1
8
1
4
1
4
4 x øN
Note) ( ): CE compliant product (-Q)
Note) ( ): CE compliant product (-Q)
404
Series VNC
7-02-40-VNC.qxd 09.10.1 1:24 PM Page 3
Flange Type/Port size: 32F, 40F, 50F
Flange Type/Port size: 65F, 80F
Manual override (Non-locking push type)
Pilot port 12
(P1), 10(P2)
Port size: refer to table below
Pilot port
12
(P1), 10(P2)
4 x 2 x ø18 mouting hole
Electrical entry port: G
1
/2
Model
VNC5-32F
VNC6-40F
VNC7-50F
Applicable flange
Port 1, 2
Pilot port
12(P1), 10(P2)
A
130
150
180
B
210.5
226
250
C
135
140
155
D
134
146
162.5
E
20
24
24
F
100
105
120
H
36
42
54
J
12
12
14
K
Note)
310.5 (296.5)
326 (312)
350 (336)
L
278
293.5
317.5
32
40
50
1
8
1
4
1
4
Note) ( ): CE compliant product (-Q)
4 x 2 x ø18 mouting hole
(80F: 8 x 2 x ø18)
Electrical entry port: G
1
/2
Manual override (Non-locking push type)
Model
VNC81 -65F
VNC91 -80F
Applicable flange
Port 1, 2
65
80
A
210
240
B
305.5
341.5
C
175
185
D
204
235
E
140
150
F
65
80
H
Note)
405.5 (391.5)
441.5 (427.5)
1
4
1
4
Note) ( ): CE compliant product (-Q)
405
Series VNC
Coolant Valve:
Air Operated/External Pilot Solenoid
VNA
VNB
SGC
VNC
VNH
VND
VCC
7-02-40-VNC.qxd 09.10.1 1:24 PM Page 4
How to Order Pilot Solenoid Valves
Valve size 1
Valve size 2 to 9
VO301 00 X302
VO307 Q
Coil rated voltage
∗ Semi-standard
Note 1) Except rated voltage: 6, 7 and 9.
Note 2) VO307 only
Light/surge voltage suppressor
CE compliant
Accessory
Function plate for VO301 (D seal, with thread): DXT060-32-4A
Function plate for VO307 (D seal, with thread): DXT152-14-1A
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
T
TS
Note 1)
TZ
Note 1)
TL
D
Note 2)
DZ
Conduit terminal
Conduit terminal with surge voltage suppressor
Conduit terminal with light/surge voltage suppressor
Conduit terminal with indicator light
DIN terminal
DIN terminal with light/surge voltage suppressor
∗
CE compliant
Note )Electrical
entry: D or DZ
only
Manual override
∗ Semi-standard
Non-locking push type
Non-locking push
type A (projecting)
Slotted locking
type B (tool required)
Nil
A
∗
B
∗
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
Coil rated voltage
∗ Semi-standard
Electrical entry/
With light/surge voltage suppressor
SF4 5 D23
SF4 5 D23Q
E Grommet terminal
GS
Grommet with surge voltage suppressor
G Grommet
EZ
Grommet terminal
with light/surge voltage suppressor
T Conduit terminal
TZ
Conduit terminal
with light/surge voltage suppressor
D
DIN terminal
DZ
DIN terminal
with light/surge voltage suppressor
—
—
—
—
—
—
앬
앬
CE compliant
CE compliant
∗
Electrical entry:
D or DZ only
406
Series VNC
External Pilot
Pilot port 12(P1) and 10(P2) piping
P1 and P2 piping should be as follows
according to the model.
Installing a silencer to the exhaust port and the
bleed port is recommended for noise reduction
and for dust entry prevention.
Caution
Piping
When high temperature fluids are used,
use fittings and tube with heat resistant
features. (Self-align fittings, Teflon
®
tubing,
Copper piping, etc.)
Caution
Caution
Pilot Solenoid Valve
With external pilot solenoids, the pilot sole-
noid valves are not splash proof specifica-
tions, and so care must be taken not to get
fluid on oneself such as when performing
maintenance.
Warning
Direction of mounting
When replacing a valve, if an external pi-
lot solenoid valve is mounted in the wrong
direction, it may malfunction or leak air.
Port
12
(P1)
10
(P2)
Bleed port
Bleed port
Air operated Solenoid
External pilot
External pilot Pilot exhaust
External pilot
VNC02 VNC1 VNC0
1
2
4
1
4
VNC1(N.C. 0.49 MPa)
Conditions: Piping 30 m
Steel tube, total pressure 0.49 MPa
VNC4(N.C. 0.97 MPa)
Conditions: Piping 30 m
Steel tube, total pressure 0.97 MPa
Calculating the Flow Velocity
v = 21.2 x Q/d
2
(Symbol)
v: flow velocity (m/s)
Q: flow rate (l/min)
d: piping inner diameter (mm)
Water Hammer Characteristics
Peak pressure at valve closed (MPa)
Flow velocity (m/s)
1
0.8
0.6
0.4
0.2
15A
20A
25A
32
A
F
65F
0
12345
50
A
F
80F
40
A
F
Peak pressure at valve closed (MPa)
Flow velocity (m/s)
2.5
2
1.6
1.2
0.8
0.4
8A
25A
15A
20A
65F
80F
0
1234 65
40
A
F
50
A
F
32
A
F
Series VNC
Specific Product Precautions
Be sure to read this before handling.
Refer to front matters 42 and 43 for Safety Instructions, and pages 17 to 19 for 2 Port
Solenoid Valves for Fluid Control Precautions.
407
VNA
VNB
SGC
VNC
VNH
VND
VCC
NBR/FKM
Port 2
Port 12(P1): Pilot SUP port
Choice of two seal materials
Pilot air operated cylinder
driving mechanism. Metal seal
with poppet valve structure.
Port 1
Port 3
Port 10(P2): Pilot EXH port
Metal seal
poppet valve
construction
Series VNH
High Pressure Coolant Valve
3.5 MPa, 7.0 MPa
Corresponding to high speed grinding
and long drilling processes
Valve for high pressure coolant liquid (up to 3.5 MPa or 7.0 MPa) that is
ideal for lubrication, dust blowing and cooling.
Valve for coolant
Smooth valve operation
Reduced valve switching resis-
tance due to balance structure
3 Port
3 Port
7.0 MPa
Operating fluid pressure
Port size RcPort
3.5 MPa
2 port
(Large flow type)
3/8(10A), 1/2(15A)
3/4(20A), 1(25A)
3/8(10A), 1/2(15A)
3/4(20A), 1(25A)
Series
Port 12(P1)
(Pilot air
SUP port)
Port 1
(Coolant liquid
SUP port)
Port 2
(Coolant liquid
EXH port)
Port 3
(Coolant liquid
EXH port)
Piping
Inlet side (supply side): port 1, Outlet
side (exhaust side): port 2 and port 3.
Supply pilot air higher than 0.25 MPa
to port 12(P1).
Ex. 1) 3 port valve: Reducing load to pump
Ex.1) 2 port valve: Nozzle ON/OFF
Piping
Inlet side (supply side): port 1, Out-
let side (exhaust side): port 2. Sup-
ply pilot air higher than 0.25 MPa to
port 12(P1).
For reducing load to pump, coolant liquid is re-
turned from B port to tank each time.
Switching nozzles on supplying coolant liquid.
Coolant
pump
1
12(P1)
VNH
Nozzle
Tank
2
3
Stop valve
1
VNH
Nozzle
Tank
Coolant
pump
2
3
12(P1)
1
12(P1)
VNH
Nozzle
Tank
Coolant
2
pump
Application Example
3 port valve (3.5 MPa, 7.0 MPa) 2 port valve (7.0 MPa)
Ex. 2) 3 port valve: Switching nozzle
Port 12(P1)
(Pilot air
SUP port)
Port 2
(Coolant liquid
EXH port)
Port 1
(Coolant liquid
SUP port)
1
12(P1)
VNH
Nozzle
Tank
Coolant
2
1
5
1
5
409
[Option]
VNA
VNB
SGC
VNC
VNH
VND
VCC
Description
Bracket (With bolt and washer)
B
Component part no.
VNH1쏔쏔 VNH2쏔쏔 VNH3쏔쏔 VNH4쏔쏔
VNH1-16 VNH2-16 VNH3-16 VNH4-16
Option
VNH 15A2 1 1 A 1 T
Port
Valve size Port size
10A
15A
20A
25A
1
2
3
4
∗ 2 port is 7.0 MPa only.
3
8
1
2
3
4
Seal material
A
B
NBR seals
FKM seals
Thread type
Nil
F
N
T
Rc
G
NPT
NPTF
1
3
∗
3 port
2 port
Valve type
1
3
N.C./3.5 MPa
N.C./7.0 MPa
1
Option
Nil
B
None
With bracket
Electrical entry/With light/surge
voltage suppressor
3
Note 2)
2
1 100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
240 VAC 50/60 Hz
4
Note 2)
7
Note 2)
6
Note 2)
12 VDC
5 24 VDC
9
Note 2)
Note 1) Electrical entry: D or
DZ only
Note 2) Semi-standard
Note) Electrical entry:
D or DZ only
Other
Rated voltage
Nil
Q
—
CE compliant
∗
Note) Electrical entry: D
or DZ only
CE compliant
Note 1) Except rated voltage 6, 7, 9
Note 2) VO307 only
VO301 00 X302
Light/surge voltage suppressor
CE compliant
3
∗
110 VAC 50/60 Hz
2 200 VAC 50/60 Hz
1 100 VAC 50/60 Hz
4
∗
220 VAC 50/60 Hz
5 24 VDC
6
∗
12 VDC
7
∗
240 VAC 50/60 Hz
9
∗
Other
Rated voltage
∗ Semi-standard
T
TS
Conduit terminal
CE compliant
Conduit terminal with surge voltage suppressor
TZ
Note 1)
Conduit terminal with light/surge voltage suppressor
TL
Note 1)
Conduit terminal with indicator light
D
DIN terminal
DZ
Note 2)
DIN terminal with light/surge voltage suppressor
∗
Accessory
Function plate for VO301 (D sealing, with thread): DXT060-32-4A
Function plate for VO307 (D sealing, with thread): DXT152-14-1A
VO307 Q
How to Order Pilot Solenoid Valves
410
CE compliant
T Conduit terminal
TS
Conduit terminal with surge voltage
suppressor
TZ
Note 1)
Conduit terminal with light/surge voltage
suppressor
TL
Note 1)
Conduit terminal with indicator light
D
DZ
DIN terminal
DIN terminal with light/surge voltage
suppressor
Note 1) Rated voltage: Except 6, 7, 9.
Note 2)
For the D DIN terminal and the DZ DIN
terminal with light/surge voltage suppressor, be
sure to add suffix -X200 at the end of the part
number. (For CE compliant product, -X200 is
not required.) In this case, the pilot solenoid
valve is VO307-
첸
D
첸
.
[Option]
Note) Electrical entry: D or DZ
only
VNH 15A2 1 1 A
Note) Silencer is provi-
ded as standard
on pilot EXH
port (P2).
Air operated
External pilot solenoid
High Pressure Coolant Valve:
3.5 MPa, 7.0 MPa
Series VNH
How to Order
3 port valve 2 port valve
VNH111
-10A
A
B
VNH211
-15A
A
B
VNH311
-20A
A
B
VNH411
-25A
A
B
VNH113
-10A
A
B
VNH213
-15A
A
B
VNH313
-20A
A
B
VNH413
-25A
A
B
VNH133
-10A
A
B
VNH233
-15A
A
B
VNH333
-20A
A
B
VNH433
-25A
A
B
Model
Operating fluid pressure
Fluid (Main piping)
Operation
Operating fluid
temperature
Pilot air
Proof pressure
Ambient temperature
Max. operating frequency
Mounting position
Port size
Orifice diameter (mm)
Flow characteristics
Av x 10
-6
m
2
Pilot port size
Mass (kg)
Face-to-face dimension (mm)
∗ Equivalent size
Note 1) No freezing
Note 2) This product cannot be used for water applications.
0 to 3.5 MPa
Coolant
Note 2)
External pilot solenoid/Air operated
–5 to 60°C
Note 1)
/–5 to 60°C
Note 1)
(NBR seal)
–5 to 60°C
Note 1)
/–5 to 99°C
Note 1)
(FKM seal)
–5 to 50°C
Note 1)
0.25 to 0.7 MPa
–5 to 50°C
Note 1)
20 times/min
Vertical upwards
Not required (Use turbine oil Class 1 ISO VG32, if lubricated.)
0 to 7.0 MPa
5.5 MPa 10.5 MPa
Pressure
Temperature
Lubrication
46
2
60
ø7.1
∗
3.1
80
86
ø8.7
∗
5.6
100
110
ø10.6
∗
8.2
115
190
ø14.3
∗
2
60
15
ø3.9
∗
3.1
80
29
ø5.2
∗
5.6
100
38
ø6.2
∗
8.2
115
58
ø7.3
∗
2
60
54
ø8
3.1
80
75
ø9.5
5.6
100
140
ø13
8.2
115
210
ø15.7
1
8
1
4
1
8
1
4
1
8
1
4
1
2
3
8
3
4
1
3
8
1
2
3
4
1
3
8
1
2
3
4
1
Specifications
1
3
1
3
VNH A
VNH B
3.5 MPa
7.0 MPa
Pilot Operated Solenoid Valve Specifications
Pilot solenoid valve
Electrical entry
Coil rated
voltage (V)
AC (50/60 Hz)
DC
AC
Allowable voltage fluctuation
Temperature rise
Apparent power
Power consumption
Manual override
DC
Inrush
Holding
100 V, 200 V, Other voltage (Option)
24 V, Other voltage (Option)
–15 to +10% of the rated voltage
4.8 W (without light), 5.0 W (with light)
Non-locking push type
Note) Refer to page 412 for how to order pilot solenoid valves.
VO301-00-X302
Conduit terminal
12 VA (50 Hz), 10.5 VA (60 Hz)
7.5 VA (50 Hz), 6 VA (60 Hz)
70°C or less (When rated voltage is applied.)
VO307-00
D
DZ
-Q
DIN terminal
12.7 VA (50 Hz), 10.7 VA (60 Hz)
7.6 VA (50 Hz), 5.4 VA (60 Hz)
50°C or less (When rated voltage is applied.)
3Port
1
2
3
12
(P1)
12
(P1)
2Port
1
2
1
2
3
12
(P1)
12
(P1)
1
2
JIS Symbol
Valve type
Operation
Air operated
External pilot
Solenoid
3 Port 2 Port
411
Series VNH
High Pressure Coolant Valve
3.5 MPa, 7.0 MPa
VNA
VNB
SGC
VNC
VNH
VND
VCC
7-02-41-VNH.qxd 09.10.1 1:24 PM Page 2
Port 1
Valve element A
Valve element B
Port 2
Port 1
Port 2
12(P1): External pilot port 10(P2) : Pilot EXH port
Port 3
3 Port valve 2 Port valve
!2
u
r
!0
t
o
y
e
i
!1
q
w
!0
r
t
o
i
e
u
!1
q
w
When the pilot operated solenoid valve !2 is not energized, the valve
element A t connected to the piston u is closed by the return spring
i. Then valve element B y connected to the valve element A t is
open. When the pilot operated solenoid valve !2 is energized (or
when pressurized air enters through the port 12(P1) of the air opera-
ted style), the pilot air supplied to the bottom of the piston u moves
upward to open the valve element A t and closes the valve element
B y.
Working Principle
No.
Description
Cast iron
Aluminum alloy
Material
Cast iron
Iron
Stainless steel
Aluminum alloy
Piano wire
Plated
Note
Plated
Undercover
Body
Cover
Plate
Stainless steelValve element A
Valve element B
Piston
Return spring
Stainless steelValve seat
Stainless steelRod
Stainless steelParallel pin
Refer to “How to Order Pilot Solenoid Valves” on the right.
Pilot solenoid valve
Component Parts
1
2
3
4
5
6
7
8
9
10
11
12
VO301 00 X302
VO307 00 Q
Coil rated voltage
∗ Semi-standard
Note) Except 12 VDC, 240 VAC, other voltages.
∗ CE compliant products only
Light/surge voltage suppressor
CE compliant
Accessory
Function plate for VO301 (D seal, with thread): DXT060-32-4A
Function plate for VO307 (D seal, with thread): DXT152-14-1A
How to Order Pilot Solenoid Valves
1
2
3
∗
4
∗
5
6
∗
7
∗
9
∗
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
12 VDC
240 VAC 50/60 Hz
Other
Conduit terminal
Conduit terminal with surge voltage suppressor
Conduit terminal with light/surge voltage suppressor
Conduit terminal with indicator light
DIN terminal
∗
DIN terminal with light/surge voltage suppressor
∗
CE compliant
T
TS
TZ
Note)
TL
Note)
D
DZ
412
Series VNH
Dimensions
7-02-41-VNH.qxd 09.10.1 1:24 PM Page 3
EBKX-L7004-040: VNH1, VNH2
AN210-02: VNH3, VNH4
Pilot SUP port 12(P1)
Main port 1
Bracket
(Back side port 2)
(Option mark: B)
Main port 3
(3 port valve only)
Manual
override
(mm)
Model
VNH1 -10A
A
B
VNH2 -15A
A
B
VNH3 -20A
A
B
VNH4 -25A
A
B
J
20
24
24
K
202.5
232
267
286.5
L
29
36
48
51
M
25
30
35
38
N
30
40
50
56
O
37
43
50.5
58.5
P
75
100
126
141
Q
88
118
148
163
R
34
44.5
60.5
66.5
S
10.5
16
19.5
15.5
T
62 6 x 8
7 x 10
9 x 12
9 x 12
70
92
109
UV
M5 x 0.8 depth 5.5
M6 x 1 depth 6
M8 x 1.25 depth 6
M8 x 1.25 depth 6
Dimensions
–
Model
Main port 1, 2, 3
2 Port
Pilot port
12(P1), 10(P2)
3 Port
1
8
1
4
1
4
1
8
A
60
80
100
115
B
Note)
235 (221)
264.5 (250.5)
300 (286)
319 (305)
C
60
77
96
113
D
46
60
76
85
E
34
40
50
60
F
24
36
41
50
G
135
164.5
200
219
H
50
60
79
90
I
77
95.5
111
119
VNH1 -10A
VNH2 -15A
VNH3 -20A
VNH4 -25A
A
B
A
B
A
B
A
B
2 x
2 x
3
8
1
2
2 x
3
4
2 x 1
3 x
3 x
3
8
1
2
3 x
3
4
3 x 1
Pilot EXH port 10(P2)
Silencer installed (Standard)
V: Female thread for
bracket mounting
Electrical
entry port
(Non-locking
push type)
U: Long hole
for mounting
4 positions
Flow indicator for 2 port valve
Same as back side
8 locations
G1/2
Note) ( ): CE compliant product (-Q)
413
Dimensions
Series VNH
High Pressure Coolant Valve
3.5 MPa, 7.0 MPa
VNA
VNB
SGC
VNC
VNH
VND
VCC
7-02-41-VNH.qxd 09.10.1 1:24 PM Page 4
Back Pressure of 3 Port Valve (VNH13)
1. Ensure that back pressure of 3 port from VNH13 is less than 5 MPa.
Caution
Quality of Operating Fluid
Please note that using fluids that contain foreign mterial (especially hard objects like glass
chips), may cause damage to the valve, will reduce sealing performance, and may cause
early failure.
Caution
Piping
When high temperature fluids are used, use fittings and tubing with heat resistant fea-
tures. (Self-align fittings, Teflon
®
tubing, Copper tubing, etc.)
Caution
Pilot Solenoid Valve
With external pilot solenoids, the pilot solenoid valves are not splash proof specifications, and
so care must be taken not to get fluid on oneself such as when performing maintenance.
Warning
Direction of mounting
When replacing a valve, if an external pilot solenoid valve is mounted in the wrong direction, it
may malfunction or leak air.
Caution
Series VNH
Specific Product Precautions
Be sure to read before handling.
Refer to front matters 42 and 43 for Safety Instructions, and pages 17 to 19 for 2 Port
Solenoid Valves for Fluid Control Precautions.
414