VX3

VX3
CAT.ES70-26 B
Direct Operated
3 Port Solenoid Valve
For Air, Water, Oil, Steam
Reduced
power consumption
(DC specification)
4.5 W
4.
8 W→ 7 W
10.
0.5 W
11.5
1.5 W → 10.5
6 W→
New
VX
3
Series VX31/32 /33
Reduced power
consumption
Improved
corrosion
resistance
(DC specification)
VX31: 6 W → 4.5 W
VX32: 8 W → 7 W
VX33: 11.5 W → 10.5 W
Special magnetic
material adopted
Enclosure:
Equivalent
to IP65
Flame resistance
UL94V-0 conformed
Flame resistant mold coil material
Low-noise
construction
Improved
maintenance
performance
Special construction enables
to reduce the metal noise.
(DC specification)
Maintenance is performed easily
due to the threaded assembly.
Direct Operated 3 Port Solenoid Valve
For Air, Water, Oil, Steam
Ne Series VX31/ 32 / 33
New
Normally Closed (N.C.) / Normally Open (N.O.) / Common (COM.)
Material
Orifice diameter
Model
Port size
ø1.5mm ø2.2mm ø3mm ø4mm
VX31
VX32
VX33
—
1/8, 1/4
—
1/4, 3/8
—
1/4, 3/8
Body
Guide
pin
C37
Stainless
steel
PPS
Stainless
steel
Seal
Main valve poppet Fixed sealant
NBR
FKM
EPDM
FFKM
NBR
FKM
EPDM
PTFE
Fluid
Air, Water,
Oil, Steam
Manifold: Normally Closed (N.C.) / Normally Open (N.O.) / Common (COM.)
Model
VVX31
VVX32
VVX33
Orifice diameter
ø1.5mm ø2.2mm ø3mm ø4mm
—
—
—
Features 1
Port size (Common SUP/EXH type)
IN port
OUT port EXH port
1/4
1/8, 1/4
1/4
Body
C37
Material
Guide pin
Seal
PPS
Stainless
steel
NBR
FKM
EPDM
Fluid
Air, Oil
Pilot Operated 2 Port for
Zero Differential Pressure
Direct Operated 2 Port
Pilot Operated 2 Port
NewVX21/22/23
NewVXD21/22/23
NewVXZ22/23
For Air, Vacuum, Water, Steam, Oil
For Air, Water, Oil
For Air, Vacuum, Water, Oil
Valve type
Port size
Orifice dia.
mmø
Valve type
Port size
Orifice dia.
mmø
Valve type
Port size
Orifice dia.
mmø
N.C./N.O.
1/8 to 1/2
2 to 10
N.C./N.O.
1/4 to 1
32A to 50A
10 to 50
N.C./N.O.
1/4 to 1
10 to 25
Pilot Operated 2 Port
Water Hammer Relief,
Pilot Operated 2 Port
Pilot Operated 2 Port for
High Pressure
VXP21/22/23
VXR21/22/23
VXH22
For Steam (Air, Water, Oil)
For Water, Oil
For Air, Water, Oil
Valve type
Port size
Orifice dia.
mmø
Valve type
Port size
Orifice dia.
mmø
Valve type
Port size
Orifice dia.
mmø
N.C./N.O.
1/4 to 2
32A to 50A
10 to 50
N.C./N.O.
1/2 to 2
20 to 50
N.C.
1/4 to 1/2
10
2 Port for Dust Collector
(Solenoid type, Air Operated type)
Air Operated 2/3 Port
VXF21/22, VXFA21/22
VXA21/22, VXA31/32
For Air
For Air, Vacuum, Water, Oil
The VX series has
been renewed as
the new VX series,
with a new construction.
Valve type
Port size
Orifice dia.
mmø
N.C.
3/4 to 11/2
20 to 40
Valve
Port
Orifice dia.
type
size
mmø
VXA21/22 N.C./N.O. 1/8 to 1/2 3 to 10
VXA31/32 COM. 1/8 to 3/8 1.5 to 4
Model
Features 2
Direct Operated 3 Port Solenoid Valve
Specifications
Series VX31/32/33
For Air, Water, Oil, Steam
Valve
For Air
Single Unit
For Water
Normally Closed (N.C.) /
Normally Open (N.O.) /
Common (COM.)
Normally closed (N.C.)
Normally open (N.O.)
Common (COM.)
Solenoid Coil
Coil: Class B, Class H
Rated Voltage
For Steam
100 VAC, 200 VAC, 110 VAC,
220 VAC, 240 VAC, 230 VAC,
48 VAC, 24 VDC, 12 VDC
For Oil
Orifice dia.
VX31 VX32 VX33
Model
—
—
1.5 mmø 2.2 mmø 3 mmø
4 mmø —
1/8
1/4
1/4
Port size
1/4
3/8
3/8
Material
C37, Stainless steel
NBR, FKM, EPDM, PTFE, FFKM
For Vacuum Pad
Body
Seal
Electrical Entry
Construction
• Grommet
• Conduit
• DIN terminal
• Conduit terminal
Base
Common SUP/EXH type
Solenoid Coil
Coil: Class B, Class H
Rated Voltage
100 VAC, 200 VAC, 110 VAC,
220 VAC, 240 VAC, 230 VAC,
48 VAC, 24 VDC, 12 VDC
Electrical Entry
• Grommet
• Conduit
• DIN terminal
• Conduit terminal
Normally Closed (N.C.) /
Normally Open (N.O.) /
Common (COM.)
Model
VX31 VX32 VX33
—
—
1.5 mmø 2.2 mmø 3 mmø
4 mmø —
EXH port OUT port IN port
Normally closed (N.C.)
Normally open (N.O.)
Common (COM.)
C37
Aluminum
NBR, FKM, EPDM
Orifice dia.
Valve
Body
Base
Seal
(Common SUP/EXH type)
Port size
Material
Dimensions
Manifold
1/4
1/8, 1/4
1/4
1
Common Specifications
Standard Specifications
Valve
specifications
Coil
specifications
Valve construction
Withstand pressure (MPa)
Body material
Seal material
Enclosure
Environment
AC (Class B coil,
Built-in full-wave rectifier type)
Rated
voltage
AC (Class H coil)
DC
Allowable voltage fluctuation
AC (Class B coil,
Allowable Built-in full-wave rectifier type)
leakage
AC (Class H coil)
voltage
DC
Coil insulation type
Direct operated poppet
3.0
C37, Stainless steel
NBR, FKM, EPDM, PTFE, FFKM
Dusttight, Low jetproof (equivalent to IP65)*
Location without corrosive or explosive gases
100 VAC, 200 VAC, 110 VAC, 220 VAC, 230 VAC, 240 VAC, 48 VAC
24 VDC, 12 VDC
±10% of rated voltage
5% or less of rated voltage
20% or less of rated voltage
2% or less of rated voltage
Class B, Class H
∗ Electrical entry, Grommet with surge voltage suppressor (GS) has a rating of IP40.
Solenoid Coil Specifications
DC Specification
Model
VX31
VX32
VX33
Power consumption (W)
4.5
7
10.5
Temperature rise (C) Note)
45
45
60
Note) The values are for an ambient temperature of 20ºC and at the rated voltage.
AC Specification (Class B coil, Built-in full-wave rectifier type)
Model
VX31
VX32
VX33
Apparent power (VA)∗
7
9.5
12
Temperature rise (C) Note)
55
60
65
∗ There is no difference in the frequency and the inrush and energized apparent power, since a rectifying circuit is used in the AC (Class B).
Note) The values are for an ambient temperature of 20ºC and at the rated voltage.
AC Specification (Class H coil)
Model
VX31
VX32
VX33
Frequency (Hz)
50
60
50
60
50
60
Apparent power (VA)
Inrush
Energized
14
33
12
28
33
65
27
55
50
94
41
79
Note) The values are for an ambient temperature of 20ºC and at the rated voltage.
2
Temperature rise (C) Note)
65
60
100
95
120
115
Specifications
Applicable Fluid Check List
All Options (Single Unit)
1
Medium vacuum, Non-leak,
Oil-free
M Note 1, 2)
V Note 1, 2)
Nil
Water
Heated water
Oil Note 3)
Steam (Max.183ºC)
Copper-free, Fluoro-free Note 5)
Others
G
E
P
A
H
D
N
S
Q
J
P
B
C
K Note 1, 2)
NBR
NBR
FKM
FKM
NBR
NBR
EPDM
EPDM
C37
Stainless steel
Stainless steel
C37
C37
Stainless steel
C37/Cu
Stainless steel/Ag
C37
FKM
FKM
Stainless steel
C37/Cu
Stainless steel/Ag
FFKM
PTFE
EPDM
EPDM
EPDM
EPDM
FFKM
PTFE
C37/Cu
Stainless steel/Ag
Coil insulation
type Note 4)
PPS
B
PPS
B
PPS
B
Stainless steel
H
PPS
B
Stainless steel
H
Stainless steel
H
—
Stainless steel
PPS
B
Stainless steel/Ag
Stainless steel
H
C37
Stainless steel
Note
For Water
G
Guide pin
material
For Oil
Nil
Air
Seal material
Body material/
Main valve poppet Fixed sealant Shading coil material Note 6)
COM. only
For Steam
Option
symbol
Fluid and application
For Air
Option symbol
—
PPS
Stainless steel
B
COM. only
COM. only, Oil-free
∗ If using for other fluids, please consult with SMC.
All Options (Manifold)∗
Air
Medium vacuum, Non-leak,
Oil-free
Oil Note 3)
Others
1
Construction
Fluid and application
00
Option symbol
Option
symbol
Seal material
Body material/
Main valve poppet Fixed sealant Shading coil material Note 6)
Guide pin
material
Coil insulation
type Note 4)
Nil
NBR
NBR
C37
PPS
B
V Note 1, 2)
FKM
FKM
C37
PPS
B
FKM
FKM
EPDM
EPDM
A
D
B
E
C37
PPS
B
C37/Cu
Stainless steel
H
C37
PPS
B
C37/Cu
Stainless steel
H
Dimensions
1
3
5
VX3
For Vacuum Pad
0
2
4
VX3
∗ Aluminum is only available with the material for a manifold base.
∗ If using for other fluids, please consult with SMC.
Note 1) The leakage amount (10–6 Pa·m3/s) of “V”, “M” options are values when differential pressure is 0.1 MPa.
Note 2) “V”, “M” and “K” options are for oil-free treatment.
Note 3) The dynamic viscosity of the fluid must not exceed 50 mm2/s or less.
Note 4) Coil insulation type Class H: AC spec. only, Class B/AC spec.: built-in full-wave rectifier type only
Note 5) The nuts (non-welded parts) are nickel plated on the C37 material.
Note 6) There is no shading coil attached to DC spec. or Class B/AC spec.
3
Series VX31/32/33
For Air /Single Unit
(Inert gas, Non-leak, Medium vacuum)
Model / Valve Specifications
N.C.
N.O.
COM.
Passage symbol
Passage symbol
Passage symbol
Port size
2
2
2
1 3
1 3
1 3
Orifice
diameter
(mmø)
1/8
(6A)
1.5
2.2
3
1.5
2.2
1/4
(8A)
3
4
2.2
3/8
(10A)
3
4
Model
VX311-01
VX312-01
VX313-01
VX311-02
VX312-02
VX322-02
VX332-02
VX313-02
VX323-02
VX333-02
VX324-02
VX334-02
VX322-03
VX332-03
VX323-03
VX333-03
VX324-03
VX334-03
Max. operating pressure differential
(MPa)
COM.
N.O.
N.C.
0.7
1
1
0.4
0.5
0.7
0.2
0.3
0.3
0.7
1
1
0.4
0.5
0.7
0.7
1
1.2
1
1.6
1.6
0.2
0.3
0.3
0.3
0.5
0.6
0.6
0.9
1
0.2
0.25
0.3
0.3
0.4
0.5
0.7
1
1.2
1
1.6
1.6
0.3
0.5
0.6
0.6
0.9
1
0.2
0.25
0.3
0.3
0.4
0.5
Flow characteristics
C[dm3/(s·bar)]
0.29
0.60
0.82
0.29
0.60
b
0.32
0.25
0.20
0.32
0.25
Cv
0.08
0.15
0.20
0.08
0.15
0.64
0.40
0.17
0.82
0.20
0.20
1.1
0.25
0.27
1.6
0.20
0.38
0.64
0.40
0.17
1.1
0.25
0.27
1.6
0.20
0.38
Max. system
pressure
(MPa)
Note)
Weight
(g)
380
2.0
530
730
380
530
730
530
730
530
730
530
730
530
730
Note) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for conduit terminal type respectively.
Also, add 60 g for VX31, 80 g for VX32 and VX33 respectively for bracket option.
• Refer to “Glossary” on page 31, for details on the max. operating pressure differential and the max. system pressure.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
AC
DC
Fluid temperature (ºC)
Solenoid valve option (symbol)
Nil, G
V, M
–10 Note) to 60
–10 Note) to 40
–10 Note) to 60
–10 Note) to 40
Note) Dew point temperature: –10ºC or less
4
Ambient
temperature
(ºC)
Seal material
–20 to 60
–20 to 40
NBR, FKM
Leakage rate
Non-leak, Medium
Air
vacuum Note)
From 0 to less than 1 MPa 1 cm3/min or less 10–6 Pa·m3/sec
or less
1 MPa or more
2 cm3/min or less
Max. operating
pressure differential
Note) The leakage amount (10–6 Pa·m3/sec) for the “V” and “M” option
are values when the differential pressure is 0.1 MPa.
Direct Operated 3 Port Solenoid Valve
Series VX31/32/33
For Air / Single Unit
Model
Orifice diameter
Refer to Table (1) shown
below for availability.
Bracket
Refer to Table (1) shown
below for availability.
Nil
Valve / Body type
N.C. / Single unit
N.O. / Single unit
COM. / Single unit
None
With bracket
∗ Bracket is neither
mountable nor removable.
Solenoid valve option
Refer to Table (2) shown
below for availability.
Built-in full-wave
rectifier type
Port size
Refer to Table (1) shown below for availability.
Nil
Rc
NPTF
G
NPT
T
F
N
Electrical entry (AC/DC)
G -Grommet
GS-With grommet surge
Rated voltage
1
2
3
4
5
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
6
7
8
J
For Oil
Thread type
C -Conduit
voltage suppressor
12 VDC
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
T -With conduit terminal
TS -With conduit terminal and
Connector
D -DIN terminal
DS -DIN terminal with surge
surge voltage suppressor
∗ Refer to Table (3) shown below for availability.
TL -With conduit terminal
and light
Refer to page 23 for ordering coil only.
TZ -With conduit
voltage suppressor
DL -DIN terminal with light
DZ -DIN terminal with
surge voltage
suppressor and light
DO -For DIN terminal (without connector,
gasket is included.)
terminal, surge
voltage suppressor
and light
∗ DIN type is available with class B only.
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
Model
VX31
01 (1/8)
Port
02 (1/4)
symbol
—
(Port size)
—
Table (3) Rated Voltage – Electrical Option
Orifice symbol (diameter)
Solenoid valve model
VX32
VX33
—
—
02 (1/4)
03 (3/8)
—
—
02 (1/4)
03 (3/8)
1
2
3
(1.5 mmø) (2.2 mmø) (3 mmø) (4 mmø)
—
—
—
—
Table (2) Solenoid Valve Option
Seal material
Body material/
Coil
Option
Guide pin
Main valve Fixed Shading coil
insulation
symbol
material
material
poppet sealant
type
Nil
C37
NBR
NBR
Stainless
G
steel
PPS
B
Stainless
M
steel
FKM
FKM
V
C37
Rated voltage
4
AC/
DC
AC
Note Note)
—
Non-leak
(10–6 Pa·m3/sec),
Medium vacuum
(0.1 Pa.abs), Oil-free
DC
Voltage
symbol
1
2
3
4
7
8
J
5
6
Class B
S
With surge
voltage
Voltage
suppressor
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
L
Z
With
light
With light and
surge voltage
suppressor
Dimensions
Table (1) Model – Orifice Diameter – Port Size
— Note)
— Note)
—
—
—
—
—
For Steam
Z
—
Oil-free spec.
For Vacuum Pad
Suffix
Nil
Construction
0
2
4
B
For Water
AC/Class B coil (Built-in
full-wave rectifier type)
5 G 1
1 G R1
01
01
For Air
VX 31 1 4
VX 31 1 4
DC
Specifications
How to Order (Single Unit)
Note 1) Option S, Z are not available as surge voltage suppressor is
integrated into the AC/Class B coil, as a standard.
∗ Class H coil is not available.
Note) The leakage amount (10–6 Pa·m3/sec) for the “V” and “M” option are values
when the differential pressure is 0.1 MPa.
5
Series VVX31/32/33
For Air /Manifold
(Inert gas, Non-leak, Medium vacuum)
Solenoid Valve for Manifold / Valve Specifications
N.C.
N.O.
Passage symbol
2
COM.
Passage symbol
2
2
1
3
Passage symbol
2
1.5
2.2
3
4
Model
VX311-00
VX312-00
VX322-00
VX332-00
VX313-00
VX323-00
VX333-00
VX324-00
VX334-00
2
1
3
1
3
Orifice diameter
(mmø)
2
Flow characteristics
Max. operating pressure differential (MPa)
N.C.
1
0.7
1.2
1.6
0.3
0.6
1
0.3
0.5
N.O.
1
0.5
1
1.6
0.3
0.5
0.9
0.25
0.4
COM.
0.7
0.4
0.7
1
0.2
0.3
0.6
0.2
0.3
C[dm3/(s·bar)]
0.29
0.60
b
0.32
0.25
Cv
0.08
0.15
0.64
0.40
0.17
0.82
0.20
0.20
1.1
0.25
0.27
1.6
0.20
0.38
Max. system
pressure
(MPa)
2.0
• Refer to “Glossary” on page 31 for details on the max. operating pressure differential and the max. system pressure.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
AC
DC
Fluid temperature (ºC)
Solenoid valve option (symbol)
Nil
V
–10 Note) to 60
–10 Note) to 40
–10 Note) to 60
–10 Note) to 40
Note) Dew point temperature: –10ºC or less
6
Ambient
temperature
(ºC)
Seal material
–20 to 60
–20 to 40
NBR, FKM
Leakage rate
Non-leak, Medium
Air
vacuum Note)
From 0 to less than 1 MPa 1 cm3/min or less 10–6 Pa·m3/sec
or less
1 MPa or more
2 cm3/min or less
Max. operating
pressure differential
Note) The leakage amount (10–6 Pa·m3/sec) for the “V” option are values
when the differential pressure is 0.1 MPa.
Direct Operated 3 Port Solenoid Valve
Series VVX31/32/33
For Air / Manifold
Built-in full-wave
rectifier type
Orifice diameter
Suffix
Valve / Body type
Nil
Solenoid valve option
N.C. / Manifold
N.O. / Manifold
COM. / Manifold
Refer to Table (2) shown
below for availability.
Z
Electrical entry (AC/DC)
G -Grommet
GS-With grommet
Rated voltage
1
2
3
4
5
6
7
8
J
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
48 VAC 50/60 Hz
230 VAC 50/60 Hz
—
Oil-free spec.
C -Conduit
For Water
Refer to Table (1) shown
below for availability.
surge voltage
suppressor
T -With conduit terminal
TS -With conduit terminal and surge
D -DIN terminal
DS -DIN terminal with surge voltage
voltage suppressor
∗ Refer to Table (3) shown below for availability.
suppressor
TL -With conduit terminal and light
TZ -With conduit terminal, surge
Refer to page 23 for ordering coil only.
For Air
Model
Refer to Table (1) shown
below for availability.
For Oil
AC/Class B coil (Built-in
full-wave rectifier type)
1
3
5
00 5 G 1
00 1 G R1
VX 31 1 1
VX 31 1 1
DC
Specifications
How to Order (Solenoid Valve for Manifold)
DL -DIN terminal with light
DZ -DIN terminal with surge voltage
voltage suppressor and light
suppressor and light
∗ DIN type is available with class B only.
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
Number of
manifolds
Port size (Individual port)
02
1
2
10
Rc 1/8
Rc 1/4
∗ Common port sizes are all Rc 1/4.
∗ Indicating numbers shown below are
for common ports.
Type
N.C.
N.O.
SUP port
1
3
2 stations
10 stations
Suffix
Nil
Z
EXH port
3
1
—
Oil-free spec.
Table (1) Model – Orifice Diameter
Orifice symbol (diameter)
Solenoid
valve
model
1
2
(1.5 mmø) (2.2 mmø)
VX31
VX32
VX33
—
—
—
Table (2) Solenoid Valve Option
Blanking plate part no.
Nil
NBR
NBR
VVX31-4AFor VX31:
For VX32/33: VVX32-4A-
V
FKM
FKM
3
Non-leak (10–6 Pa·m3/
sec), Medium vacuum
(0.1 Pa.abs), Oil-free
∗ Aluminum is only available as a material for the manifold base.
Note) The leakage amount (10–6 Pa·m3/sec) for the “V”option are values when
the differential pressure is 0.1 MPa.
Example
VVX311-05-1 ..... 1 set
∗ VX3111-00-1GR1 ... 4 sets
∗ VVX31-4A ........... 1 set
2
B
Nil
NBR
FKM
Enter the valve and blanking plate to be mounted under the
manifold base part number.
1
PPS
Seal material
How to Order Manifold Assemblies (Example)
Station
Note Note)
—
C37
F
D side
4
(4 mmø)
Seal material
Coil
Option
Body Guide pin
insulation
Main valve Fixed
symbol
material material
type
poppet sealant
Manifold base
3
(3 mmø)
“∗” is the symbol for mounting.
Add an “∗” in front of the part numbers
for solenoid valves, etc. to be mounted.
4
5
n
Table (3) Rated Voltage – Electrical Option
Rated voltage
AC/
DC
U side
Enter the product’s part
number
in
order,
counting the 1st station
from the left in the
m a n i f o l d
arrangement,
when
viewing the individual
port in front.
The common port on the
Construction
07 1
AC
DC
Voltage
symbol
1
2
3
4
7
8
J
5
6
Class B
S
With surge
voltage
Voltage
suppressor
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
L
Z
With
light
With light and
surge voltage
suppressor
— Note)
— Note)
—
—
—
—
—
∗ Class H coil is not available.
Note) Option S, Z are not available as surge voltage suppressor is
integrated into the AC/Class B coil, as a standard.
7
Dimensions
VVX31
VVX32 1
VVX33
For Vacuum Pad
(without connector,
gasket is
included.)
How to Order Manifold Bases
For Steam
DO -For DIN terminal
Series VX31/32/33
For Water /Single Unit
Model / Valve Specifications
N.C.
N.O.
COM.
Passage symbol
Passage symbol
Passage symbol
Port size
2
2
2
1 3
1 3
1 3
Orifice
diameter
(mmø)
1/8
(6A)
1.5
2.2
3
1.5
2.2
1/4
(8A)
3
4
2.2
3/8
(10A)
3
4
Model
VX311-01
VX312-01
VX313-01
VX311-02
VX312-02
VX322-02
VX332-02
VX313-02
VX323-02
VX333-02
VX324-02
VX334-02
VX322-03
VX332-03
VX323-03
VX333-03
VX324-03
VX334-03
Max. operating pressure differential (MPa)
N.C.
1
0.7
0.3
1
0.7
1.2
1.6
0.3
0.6
1
0.3
0.5
1.2
1.6
0.6
1
0.3
0.5
N.O.
1
0.5
0.3
1
0.5
1
1.6
0.3
0.5
0.9
0.25
0.4
1
1.6
0.5
0.9
0.25
0.4
COM.
0.7
0.4
0.2
0.7
0.4
0.7
1
0.2
0.3
0.6
0.2
0.3
0.7
1
0.3
0.6
0.2
0.3
Flow characteristics
Av x 10-6m2
1.9
3.8
5.8
1.9
3.8
Cv converted
0.08
0.16
0.24
0.08
0.16
4.6
0.19
5.8
0.24
7.9
0.33
Max. system
pressure
(MPa)
0.50
12
4.6
0.19
7.9
0.33
0.50
12
Note)
Weight
(g)
380
2.0
530
730
380
530
730
530
730
530
730
530
730
530
730
Note) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for conduit terminal type respectively.
Also, add 60 g for VX31, 80 g for VX32 and VX33 respectively for bracket option.
• Refer to “Glossary” on page 31, for details on the max. operating pressure differential and the max. system pressure.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
AC
DC
Fluid temperature (ºC)
Solenoid valve option (symbol)
Nil, G, H
E, P
1 to 60
1 to 99
1 to 40
—
Note) With no freezing
8
Ambient
temperature
(ºC)
–20 to 60
–20 to 40
Seal material
Max. operating
pressure differential
Leakage rate (Water)
NBR, FKM, EPDM
From 0 to less than 1 MPa
1 MPa or more
0.1 cm3/min or less
0.2 cm3/min or less
Series VX31/32/33
Direct Operated 3 Port Solenoid Valve
For Water / Single Unit
VX 31 1 4
VX 31 1 4
DC, AC/Class H coil
AC/Class B coil (Built-in
full-wave rectifier type)
01
01
Specifications
How to Order (Single Unit)
1 G 1
1 G R1
Orifice diameter
Bracket
Refer to Table (1) shown
below for availability.
Nil
B
Valve / Body type
Refer to Table (2) shown
below for availability.
For Water
∗ Bracket is neither
mountable nor removable.
Solenoid valve option
Built-in full-wave
rectifier type
Port size
Refer to Table (1) shown below for availability.
Thread type
Z
—
Oil-free spec.
G -Grommet
GS-With grommet surge
voltage suppressor
Rated voltage
1
2
3
4
5
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
6
7
8
J
C -Conduit
For Oil
Nil
Electrical entry
Rc
NPTF
G
NPT
T
F
N
T -With conduit terminal
TS -With conduit terminal and
12 VDC
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
Connector
D -DIN terminal
DS -DIN terminal with surge
surge voltage suppressor
voltage suppressor
TL -With conduit terminal
DL -DIN terminal with light
DZ -DIN terminal with
and light
TZ -With conduit
surge voltage
suppressor and light
DO -For DIN terminal (without connector,
gasket is included.)
∗ DIN type is available with class B only.
terminal, surge
voltage suppressor
and light
∗ Refer to Table (3) shown below for availability.
For Steam
Nil
Suffix
Refer to page 23 for ordering coil only.
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
Table (3) Rated Voltage – Electrical Option
Orifice symbol (diameter)
Model
Port
symbol
(Port size)
VX31
01 (1/8)
02 (1/4)
—
—
VX32
—
—
02 (1/4)
03 (3/8)
VX33
—
—
02 (1/4)
03 (3/8)
1
2
(1.5 mmø) (2.2 mmø)
3
4
(3 mmø)
(4 mmø)
—
—
—
—
Rated voltage
AC/
DC
1
2
3
4
7
8
J
5
6
AC
Table (2) Solenoid Valve Option
Option
symbol
Nil
G
E
P
H
Seal material
Main valve
Fixed
poppet
sealant
NBR
NBR
EPDM
EPDM
FKM
FKM
Body material/
Shading coil
material
Guide pin
material
C37
PPS
Stainless steel
C37/Cu
Stainless
steel
Stainless steel/Ag
Stainless steel
PPS
Coil
insulation
type
Note
DC
B
—
H
Heated water
B
—
Voltage
Voltage
symbol
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
Class B
S
L
Z
With surge
voltage
suppressor
With
light
With light and
surge voltage
suppressor
Dimensions
Table (1) Model – Orifice Diameter – Port Size
Solenoid valve model
For Vacuum Pad
N.C. / Single unit
N.O. / Single unit
COM. / Single unit
— Note)
— Note)
—
—
—
—
—
Note) Option S, Z are not available as surge voltage suppressor is
integrated into the AC/Class B coil, as a standard.
Rated voltage
AC/
DC
AC
DC
Voltage
Voltage
symbol
1
2
3
4
7
8
J
5
6
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
Class H
S
L
Z
With surge
voltage
suppressor
With
light
With light and
surge voltage
suppressor
—
—
—
—
—
—
Construction
0
2
4
None
With bracket
For Air
Model
Refer to Table (1) shown
below for availability.
DC specification is not available.
9
Series VX31/32/33
For Oil /Single Unit
Model / Valve Specifications
N.C.
N.O.
COM.
Passage symbol
Passage symbol
Passage symbol
Port size
2
2
2
1 3
1 3
1 3
Orifice
diameter
(mmø)
1/8
(6A)
2.2
1/4
(8A)
3
4
2.2
3/8
(10A)
N.C.
1
0.7
0.3
1
0.7
1.2
1.6
0.3
0.6
1
0.3
0.5
1.2
1.6
0.6
1
0.3
0.5
VX311-01
VX312-01
VX313-01
VX311-02
VX312-02
VX322-02
VX332-02
VX313-02
VX323-02
VX333-02
VX324-02
VX334-02
VX322-03
VX332-03
VX323-03
VX333-03
VX324-03
VX334-03
1.5
2.2
3
1.5
3
4
Flow characteristics
Max. operating pressure differential (MPa)
Model
N.O.
1
0.5
0.3
1
0.5
1
1.6
0.3
0.5
0.9
0.25
0.4
1
1.6
0.5
0.9
0.25
0.4
COM.
0.7
0.4
0.2
0.7
0.4
0.7
1
0.2
0.3
0.6
0.2
0.3
0.7
1
0.3
0.6
0.2
0.3
Av x 10-6m2
1.9
3.8
5.8
1.9
3.8
Cv converted
0.08
0.16
0.24
0.08
0.16
4.6
0.19
5.8
0.24
7.9
0.33
Max. system
pressure
(MPa)
0.50
12
4.6
0.19
7.9
0.33
0.50
12
Note)
Weight
(g)
380
2.0
530
730
380
530
730
530
730
530
730
530
730
530
730
Note) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for conduit terminal type respectively.
Also, add 60 g for VX31, 80 g for VX32 and VX33 respectively for bracket option.
• Refer to “Glossary” on page 31, for details on the max. operating pressure differential and the max. system pressure.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
Fluid temperature (ºC)
Solenoid valve option (symbol)
A, H
AC
DC
Note)
–5
to 60
–5 Note) to 40
D, N
–5
Note)
to 120
—
Note) Dynamic viscosity: 50 mm2/s or less
10
Ambient
temperature
(ºC)
–20 to 60
–20 to 40
Seal material
Max. operating
pressure differential
Leakage rate (Oil)
FKM
From 0 to less than 1 MPa
1 MPa or more
0.1 cm3/min or less
0.2 cm3/min or less
Series VX31/32/33
Direct Operated 3 Port Solenoid Valve
For Oil / Single Unit
VX 31 1 4 A
VX 31 1 4 A
DC, AC/Class H coil
AC/Class B coil (Built-in
full-wave rectifier type)
01
01
Specifications
How to Order (Single Unit)
1 G 1
1 G R1
Orifice diameter
Bracket
Refer to Table (1) shown
below for availability.
Nil
B
Valve / Body type
Solenoid valve option
Port size
For Water
∗ Bracket is neither
mountable nor removable.
Refer to Table (2) shown
below for availability.
Built-in full-wave
rectifier type
Refer to Table (1) shown below for availability.
Thread type
Z
—
Oil-free spec.
G -Grommet
GS-With grommet surge
voltage suppressor
Rated voltage
1
2
3
4
5
6
7
8
J
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
C -Conduit
For Oil
Nil
Electrical entry
Rc
NPTF
G
NPT
T
F
N
T -With conduit terminal
TS -With conduit terminal and
12 VDC
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
Connector
D -DIN terminal
DS -DIN terminal with surge
surge voltage suppressor
voltage suppressor
TL -With conduit terminal
DL -DIN terminal with light
DZ -DIN terminal with
and light
TZ -With conduit
surge voltage
suppressor and light
DO -For DIN terminal (without connector,
gasket is included.)
terminal, surge
voltage suppressor
and light
∗ Refer to Table (3) shown below for availability.
Refer to page 23 for ordering coil only.
∗ DIN type is available with class B only.
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
Table (1) Model – Orifice Diameter – Port Size
Port
symbol
(Port size)
VX31
01 (1/8)
02 (1/4)
—
—
VX32
—
—
02 (1/4)
03 (3/8)
1
VX33
2
(1.5 mmø) (2.2 mmø)
—
—
02 (1/4)
03 (3/8)
3
4
(3 mmø)
(4 mmø)
—
—
—
—
Rated voltage
AC/
DC
1
2
3
4
7
8
J
5
6
AC
Table (2) Solenoid Valve Option
Option
symbol
A
H
D
N
Seal material
Main valve
Fixed
poppet
sealant
FKM
FKM
Body material/
Shading coil
material
C37
Stainless steel
C37/Cu
Stainless steel/Ag
Guide pin
material
Coil
insulation
type
PPS
B
Stainless
steel
H
Voltage
Voltage
symbol
DC
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
Class B
S
L
Z
With surge
voltage
suppressor
With
light
With light and
surge voltage
suppressor
Dimensions
Model
Table (3) Rated Voltage – Electrical Option
Orifice symbol (diameter)
Solenoid valve model
For Steam
Nil
Suffix
For Vacuum Pad
N.C. / Single unit
N.O. / Single unit
COM. / Single unit
— Note)
— Note)
—
—
—
—
—
Note) Option S, Z are not available as surge voltage suppressor is
integrated into the AC/Class B coil, as a standard.
∗ The additives contained in oil are different depending on the type and manufacturers,
so the durability of the seal materials will vary. For details, please consult with SMC.
Rated voltage
AC/
DC
AC
DC
Voltage
Voltage
symbol
1
2
3
4
7
8
J
5
6
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
Class H
S
L
Z
With surge
voltage
suppressor
With
light
With light and
surge voltage
suppressor
—
—
—
—
—
—
Construction
0
2
4
None
With bracket
For Air
Model
Refer to Table (1) shown
below for availability.
DC specification is not available.
11
Series VVX31/32/33
For Oil /Manifold
Solenoid Valve for Manifold / Valve Specifications
N.C.
N.O.
Passage symbol
2
COM.
Passage symbol
2
2
1
3
Passage symbol
2
2
1
3
1
3
Orifice diameter
(mmø)
3
4
N.O.
1
0.5
1
1.6
0.3
0.5
0.9
0.25
0.4
N.C.
1
0.7
1.2
1.6
0.3
0.6
1
0.3
0.5
VX311-00
VX312-00
VX322-00
VX332-00
VX313-00
VX323-00
VX333-00
VX324-00
VX334-00
2.2
Flow characteristics
Max. operating pressure differential (MPa)
Model
1.5
2
COM.
0.7
0.4
0.7
1
0.2
0.3
0.6
0.2
0.3
Av x 10-6m2
1.9
3.8
Cv converted
0.08
0.16
4.6
0.19
5.8
0.24
7.9
0.33
12
Max. system
pressure
(MPa)
2.0
0.50
• Refer to “Glossary” on page 31 for details on the max. operating pressure differential and the max. system pressure.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
AC
DC
Fluid temperature (ºC)
Solenoid valve option (symbol)
A
D
Ambient
temperature
(ºC)
–5 Note) to 60
–5 Note) to 40
–5 Note) to 120
—
–20 to 60
–20 to 40
Note) Dynamic viscosity: 50 mm2/s or less
12
Seal material
Max. operating
pressure differential
Leakage rate (Oil)
FKM
From 0 to less than 1 MPa
1 MPa or more
0.1 cm3/min or less
0.2 cm3/min or less
Direct Operated 3 Port Solenoid Valve
Series VVX31/32/33
For Oil / Manifold
VX 31 1 1 A
VX 31 1 1 A
DC, AC/Class H coil
AC/Class B coil (Built-in
full-wave rectifier type)
00 1 G 1
00 1 G R1
Built-in full-wave rectifier type
Model
Refer to Table (1) shown
below for availability.
C -Conduit
G -Grommet
GS-With grommet surge voltage
Valve / Body type
Refer to Table (2) shown
below for availability.
D -DIN terminal
DS -DIN terminal with surge
Rated voltage
Z
12 VDC
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
∗ Refer to Table (3) shown below for availability.
Refer to page 23 for ordering coil only.
voltage suppressor
DL -DIN terminal with light
DZ -DIN terminal with
T -With conduit terminal
TS -With conduit terminal and
surge voltage
surge voltage suppressor
suppressor and light
TL -With conduit terminal and
DO -For DIN terminal (without
light
connector, gasket is
TZ -With conduit terminal, surge
included.)
voltage suppressor and light
How to Order Manifold Bases
∗ DIN type is available with
class B only.
∗ Refer to Table (3) for available combinations between each
electrical option (S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B
coil, as a standard.
07 1
Number of
manifolds
Suffix
—
Oil-free spec.
Nil
Manifold base
Z
02
2 stations
10
10 stations
Port size (Individual port)
1
2
Rc 1/8
Rc 1/4
∗ Common port sizes are all Rc 1/4.
∗ Indicating numbers shown below are for common ports.
Type
N.C.
N.O.
SUP port
1
3
EXH port
3
1
Table (1) Model – Orifice Diameter
Solenoid
valve
model
VX31
VX32
VX33
Enter the valve and blanking plate to be mounted under the
manifold base part number.
Example
VVX311-05-1 ........ 1 set
∗ VX3111A-00-1GR1.. 4 sets
∗ VVX31-4A-F.......... 1 set
3
—
Option
symbol
Seal material
Main valve
Fixed
poppet
sealant
Body material/
Shading coil
material
Guide pin
material
Coil
insulation
type
C37
PPS
B
C37/Cu
Stainless
steel
H
FKM
D
How to Order Manifold Assemblies (Example)
2
4
(4 mmø)
—
—
FKM
Seal material: FKM
1
3
(3 mmø)
A
Blanking plate part no.
For VX31:
VVX31-4A-F
For VX32/33: VVX32-4A-F
Station
2
(1.5 mmø) (2.2 mmø)
Table (2) Solenoid Valve Option
D side
Orifice symbol (diameter)
1
“∗” is the symbol for mounting.
Add an “∗” in front of the part numbers
for solenoid valves, etc. to be mounted.
4
5
n
∗ Aluminum is only available as a material for the manifold base.
∗ The additives contained in oil are different depending on the type and
manufacturers, so the durability of the seal materials will vary. For details, please
consult with SMC.
Table (3) Rated Voltage – Electrical Entry – Electrical Option
Rated voltage
AC/
DC
U side
Enter the product’s part
number in order, counting
the 1st station from the
left in the manifold
arrangement,
when
viewing the individual port
in front.
The common port on the
right side is plugged.
Construction
VVX31
VVX32 1
VVX33
AC
DC
For Oil
—
Oil-free spec.
Nil
6
7
8
J
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
For Steam
1
2
3
4
5
Suffix
For Water
suppressor
Solenoid valve option
For Vacuum Pad
N.C. / Manifold
N.O. / Manifold
COM. / Manifold
Class B
S
With surge
Voltage
Voltage voltage
symbol
suppressor
100 V
1
200 V
2
110 V
3
220 V — Note)
4
240 V
7
48 V
8
230 V
J
24 V
5
12 V
6
L
Class H
Z
S
L
Z
—
—
—
—
—
—
With light and With surge
surge voltage voltage
suppressor suppressor
With
light
With light and
surge voltage
suppressor
With
light
— Note)
—
—
—
—
—
DC specification is not
available.
Note) Option S, Z are not available as surge voltage suppressor is integrated into the
AC/Class B coil, as a standard.
13
Dimensions
1
3
5
For Air
Electrical entry
Orifice diameter
Refer to Table (1) shown
below for availability.
Specifications
How to Order (Solenoid Valve for Manifold)
Series VX31/32/33
For Steam /Single Unit
Model / Valve Specifications
COM.
Passage symbol
2
1 3
Port size
1/8
(6A)
Orifice diameter
(mmø)
Model
1.5
2.2
3
1.5
VX3114-01
VX3124-01
VX3134-01
VX3114-02
VX3124-02
VX3224-02
VX3324-02
VX3134-02
VX3234-02
VX3334-02
VX3244-02
VX3344-02
VX3224-03
VX3324-03
VX3234-03
VX3334-03
VX3244-03
VX3344-03
2.2
1/4
(8A)
3
4
2.2
3/8
(10A)
3
4
Max. operating pressure
differential (MPa)
COM.
0.7
0.4
0.2
0.7
0.4
0.7
1
0.2
0.3
0.6
0.2
0.3
0.7
1
0.3
0.6
0.2
0.3
Flow characteristics
Av x 10-6m2
1.9
3.8
5.8
1.9
3.8
Cv converted
0.08
0.16
0.24
0.08
0.16
4.6
0.19
5.8
0.24
7.9
0.33
12
0.50
4.6
0.19
7.9
0.33
12
0.50
Max. system
pressure
(MPa)
Note)
Weight
(g)
380
1.0
530
730
380
530
730
530
730
530
730
530
730
530
730
Note) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for conduit terminal type respectively.
Also, add 60 g for VX31, 80 g for VX32 and VX33 respectively for bracket option.
• Refer to “Glossary” on page 31, for details on the max. operating pressure differential and the max. system pressure.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage
Power source
AC
14
Fluid temperature (ºC)
Solenoid valve option (symbol)
S, Q
Ambient
temperature
(ºC)
183
–20 to 60
Seal material
FFKM
Leakage rate (Air)
150 cm3/min or less
External Leakage
Seal material
PTFE
Leakage rate (Air)
1 cm3/min or less
Series VX31/32/33
Direct Operated 3 Port Solenoid Valve
For Steam / Single Unit
VX 31 1 4 S
01
Specifications
How to Order (Single Unit)
1 G1
Model
Bracket
Orifice diameter
Refer to Table (1) shown
below for availability.
Nil
∗ Bracket is neither mountable
nor removable.
Valve / Body type
4
None
With bracket
B
COM. / Single unit
For Air
Refer to Table (1) shown
below for availability.
Solenoid valve option
For Water
Refer to Table (2) shown
below for availability.
Port size
Refer to Table (1) shown below for availability.
Thread type
—
Oil-free spec.
Nil
Z
Electrical entry
Rc
NPTF
G
NPT
T
F
N
G -Grommet
GS-With grommet surge
C -Conduit
For Oil
Nil
Suffix
voltage suppressor
Rated voltage
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
T -With conduit terminal
TS -With conduit terminal and
For Steam
7
8
J
surge voltage suppressor
TL -With conduit terminal
and light
∗ Refer to Table (3) shown below for availability.
TZ -With conduit
terminal, surge
voltage suppressor
and light
Refer to page 23 for ordering coil only.
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
Table (3) Rated Voltage – Electrical Option
Orifice symbol (diameter)
Model
Port
symbol
(Port size)
VX31
01 (1/8)
02 (1/4)
—
—
VX32
—
—
02 (1/4)
03 (3/8)
VX33
—
—
02 (1/4)
03 (3/8)
1
2
(1.5 mmø) (2.2 mmø)
3
4
(3 mmø)
(4 mmø)
—
—
—
—
Rated voltage
AC/
DC
AC
Table (2) Solenoid Valve Option
Option
symbol
S
Q
Seal material
Main valve
Fixed
poppet
sealant
FFKM
PTFE
Body material/
Shading coil
material
Coil
Guide pin
insulation
material
type
C37/Cu
Stainless
steel
Stainless steel/Ag
DC
H
Voltage
Voltage
symbol
1
2
3
4
7
8
J
5
6
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
Class H
S
L
Z
With surge
voltage
suppressor
With
light
With light and
surge voltage
suppressor
—
—
—
—
—
—
Dimensions
Table (1) Model – Orifice Diameter – Port Size
Solenoid valve model
For Vacuum Pad
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
Construction
1
2
3
4
DC specification is not available.
Solenoid coil: AC/Class H only
15
For Vacuum Pad / Single Unit
Series VXV31/32/33
Vacuum circuit side is suited for a large orifice. Supply pressure side is suited for high pressure
and a vacuum pad.
Construction and dimensions are the same as the VX3 series.
Model / Valve Specifications
N.C.
N.O.
Passage symbol (example)
Passage symbol (example)
2
1
1
3
3
Orifice diameter
(mmø)
Port size
Model
Port 1 side Port 3 side
1/8
(6A)
1/4
(8A)
3/8
(10A)
2
3
1.5
3
1.5
1.5
3
1.5
3
4
2.2
2.2
4
4
2.2
2.2
4
VXV3130-01
VXV3132-01
VXV3130-02
VXV3132-02
VXV3240-02
VXV3340-02
VXV3242-02
VXV3342-02
VXV3240-03
VXV3340-03
VXV3242-03
VXV3342-03
Operating pressure∗
(MPa)
Passage: 1
Flow characteristics
Passage: 2
2
3
3
3
Port 1 side Port 3 side
C[dm /
(s·bar)]
b
Cv
C[dm /
(s·bar)]
b
Cv
Low vacuum 0 to 0.5
0 to 0.5 Low vacuum
Low vacuum 0 to 0.5
0 to 0.5 Low vacuum
0 to 0.5
Low vacuum
0 to 0.9
0 to 0.5
Low vacuum
0 to 0.9
0 to 0.5
Low vacuum
0 to 0.9
0 to 0.5
Low vacuum
0 to 0.9
0.82
0.29
0.82
0.29
0.20
0.32
0.20
0.32
0.20
0.08
0.20
0.08
0.29
0.82
0.29
0.82
0.32
0.20
0.32
0.20
0.08
0.20
0.08
0.20
1.6
0.20
0.38
0.64
0.40
0.17
0.64
0.40
0.17
1.6
0.20
0.38
1.6
0.20
0.38
0.64
0.40
0.17
0.64
0.40
0.17
1.6
0.20
0.38
Max.
system
pressure
(MPa)
380
2.0
Note) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for conduit terminal type respectively.
Also, add 60 g for VX31, 80 g for VX32 and VX33 respectively for bracket option.
• Refer to “Glossary” on page 31, for details on the max. operating pressure differential and the max. system pressure.
∗ Low vacuum: Up to 1.3 x 102Pa
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
Fluid temperature (ºC)
Ambient
temperature (ºC)
AC
DC
–10 Note) to 60
–10 Note) to 60
–20 to 60
–20 to 40
Note 1) Dew point temperature: –10C or less
16
Seal material
NBR, FKM
Note) Value when air pressure is applied.
Note)
Weight
(g)
Leakage rate Note)
Air
1 cm3/min or less
530
730
530
730
530
730
530
730
Direct Operated 3 Port Solenoid Valve
Series VX31/32/33
For Vacuum Pad / Single Unit
Valve / Body type
N.C. / Single unit
N.O. / Single unit
Bracket
Solenoid valve option
Nil
Refer to Table (2) shown
below for availability.
B
None
With bracket
∗ Bracket is neither
mountable nor removable.
Port size
Refer to Table (1) shown below for availability.
Nil
Z
—
Oil-free spec.
Built-in full-wave
rectifier type
Thread type
Nil
Rc
NPTF
G
NPT
T
F
N
For Oil
Suffix
Electrical entry (AC/DC)
Rated voltage
1
2
3
4
5
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
24 VDC
6
7
8
J
G -Grommet
GS-With grommet surge
12 VDC
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
C -Conduit
voltage suppressor
T -With conduit terminal
TS -With conduit terminal and
∗ Refer to Table (3) shown below for availability.
Connector
D -DIN terminal
DS -DIN terminal with surge
surge voltage suppressor
voltage suppressor
TL -With conduit terminal
Refer to page 23 for ordering coil only.
DL -DIN terminal with light
DZ -DIN terminal with
and light
TZ -With conduit
surge voltage
suppressor and light
DO -For DIN terminal (without connector,
gasket is included.)
terminal, surge
voltage suppressor
and light
∗ DIN type is available with class B only.
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
Orifice symbol (diameter) Note)
Model
Port
symbol
(Port size)
VXV31
VXV32
VXV33
01 (1/8)
02 (1/4)
—
—
02 (1/4)
03 (3/8)
—
—
02 (1/4)
03 (3/8)
—
—
3
4
(1.5/3 mmø)
(2.2/4 mmø)
—
—
Rated voltage
AC/
DC
—
—
AC
Note) The orifice diameter shown above are for the supply pressure side/
vacuum side port.
Table (2) Solenoid Valve Option
Seal material
Option
Main valve Fixed
symbol
sealant
poppet
Nil
NBR
NBR
A
FKM
FKM
G
NBR
NBR
H
FKM
FKM
Body material
Coil
Guide pin
insulation
material
type
C37
PPS
Stainless steel
B
DC
Dimensions
Table (3) Rated Voltage – Electrical Option
Table (1) Model – Orifice Diameter – Port Size
Solenoid valve model
For Air
Refer to Table (1) shown
below for availability.
For Water
Orifice diameter
Refer to Table (1) shown
below for availability.
0
2
5 G 1
1 G R1
For Steam
Model
01
01
For Vacuum Pad
AC/Class B coil (Built-in
full-wave rectifier type)
VXV 31 3 0
VXV 31 3 0
Construction
DC
Specifications
How to Order (Single Unit)
Class B
S
With surge
Voltage
voltage
Voltage
symbol
suppressor
1
100 V
2
200 V
3
110 V
4
220 V — Note)
7
240 V
8
48 V
J
230 V
5
24 V
6
12 V
L
Z
With
light
With light and
surge voltage
suppressor
— Note)
—
—
—
—
—
Note) Option S, Z are not available as surge voltage
suppressor is integrated into the AC/Class B coil, as
a standard.
∗ Class H coil is not available.
17
For Vacuum Pad / Manifold
Series VVXV31/32/33
Construction and dimensions are the same as those of the VVX3 series.
Model / Valve Specifications
N.C.
N.O.
Passage symbol (example)
2
Passage symbol (example)
2
2
1
1
3
3
Orifice diameter
(mmø)
3
1.5
1.5
3
4
2.2
2.2
4
Operating pressure∗
(MPa)
Model
Port 1 side Port 3 side
Port 1 side Port 3 side
VXV3131-00
VXV3133-00
VXV3241-00
VXV3341-00
VXV3243-00
VXV3343-00
2
Low vacuum 0 to 0.5
0 to 0.5 Low vacuum
0 to 0.5
Low vacuum
0 to 0.9
0 to 0.5
Low vacuum
0 to 0.9
Flow characteristics
Passage: 1
Passage: 2
2
3
C[dm3/
(s·bar)]
b
Cv
C[dm3/
(s·bar)]
b
Cv
0.82
0.29
0.20
0.32
0.20
0.08
0.29
0.82
0.32
0.20
0.08
0.20
1.6
0.20
0.38
0.64
0.40
0.17
0.64
0.40
0.17
1.6
0.20
0.38
Max.
system
pressure
(MPa)
• Refer to “Glossary” on page 31 for details on the max. operating pressure differential and the max. system pressure.
∗ Low vacuum: Up to 1.3 x 102Pa
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage / External Leakage
Power source
Fluid temperature (ºC)
AC
DC
–10 Note) to 60
–10 Note) to 60
Note 1) Dew point temperature: –10C or less
18
Ambient
temperature (ºC)
–20 to 60
–20 to 40
Seal material
NBR, FKM
Note) Value when air pressure is applied.
Leakage rate Note)
Air
1 cm3/min or less
2.0
Series VVXV31/32/33
Direct Operated 3 Port Solenoid Valve
For Vacuum Pad / Manifold
Suffix
Nil
Refer to Table (1) shown
below for availability.
Z
Solenoid valve option
Refer to Table (2) shown below for availability.
6
7
8
J
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
48 VAC 50/60 Hz
230 VAC 50/60 Hz
Electrical entry (AC/DC)
G -Grommet
GS-With grommet
surge voltage
suppressor
suppressor and light
DO -For DIN terminal
(without
connector,
gasket is
included.)
07 1
Number of
manifolds
∗ DIN type is available with class B
only.
Port size (Individual port)
02
2 stations
∗ Refer to Table (3) for available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
1
2
10
10 stations
Table (1) Model – Orifice Diameter
Suffix
Nil
Z
Vacuum side port SUP side port
1
3
3
1
—
Oil-free spec.
Solenoid
valve
model
VXV31
VXV32
VXV33
Blanking plate part no.
—
—
—
Seal material
Main valve
Fixed
poppet
sealant
NBR
NBR
FKM
FKM
Option
symbol
Seal material
Nil
NBR
FKM
F
Nil
A
“∗” is the symbol for mounting.
Add an “∗” in front of the part numbers
for solenoid valves, etc. to be mounted.
4
5
n
C37
Guide
Coil
pin
insulation
material
type
PPS
B
Table (3) Rated Voltage – Electrical Option
Enter the valve and blanking plate to be mounted under the
manifold base part number.
Example
VVX311-05-1 ........ 1 set
∗ VXV3131-00-1GR1.. 4 sets
∗ VVX31-4A ........... 1 set
Body material
∗ Aluminum is only available as a material for the manifold base.
How to Order Manifold Assemblies (Example)
3
4
(2.2/4 mmø)
Table (2) Solenoid Valve Option
VVX31-4AFor VXV31:
For VXV32/33: VVX32-4A-
2
3
(1.5/3 mmø)
Note) The orifice diameter shows the supply pressure side/vacuum side.
Manifold base
1
Orifice symbol (diameter) Note)
Construction
Rc 1/8
Rc 1/4
Rated voltage
AC/
DC
U side
Enter the product’s part
number in order, counting
the 1st station from the
left in the manifold
arrangement,
when
viewing the individual port
in front.
The common port on the
right side is plugged.
AC
DC
Voltage
Voltage
symbol
1
2
3
4
7
8
J
5
6
100 V
200 V
110 V
220 V
240 V
48 V
230 V
24 V
12 V
Class B
S
L
Z
With surge
voltage
suppressor
With
light
With surge
voltage
suppressor
— Note)
— Note)
—
—
—
—
—
∗ Class H coil is not available.
Note) Option S, Z are not available as surge voltage suppressor is integrated into the
AC/Class B coil, as a standard.
19
Dimensions
Type
N.C.
N.O.
Station
DL -DIN terminal with light
DZ -DIN terminal with surge voltage
voltage suppressor and light
∗ Common port sizes are all Rc 1/4.
∗ Indicating numbers shown below are for
common ports.
D side
voltage suppressor
TL -With conduit terminal and light
TZ -With conduit terminal, surge
How to Order Manifold Bases
D -DIN terminal
DS -DIN terminal with surge
voltage suppressor
Refer to page 23 for ordering coil only.
VVX31
VVX32 1
VVX33
C -Conduit
T -With conduit terminal
TS -With conduit terminal and surge
∗ Refer to Table (3) shown below for availability.
For Water
Rated voltage
For Steam
N.C. / Manifold
N.O. / Manifold
1
2
3
4
5
Built-in full-wave
rectifier type
—
Oil-free spec.
For Air
Valve / Body type
Orifice diameter
For Oil
Model
Refer to Table (1) shown
below for availability.
For Vacuum Pad
AC/Class B coil (Built-in
full-wave rectifier type)
1
3
00 5 G 1
00 1 G R1
VXV 31 3 1
VXV 31 3 1
DC
Specifications
How to Order (Solenoid Valve for Manifold)
Series VX31/32/33
For Air, Water, Oil, Steam
Construction
Single unit
Body material: C37, Stainless steel
Manifold
Base material: Aluminum
Manifold body material: C37
i
w
y
e
i
w
y
e
t
u
t
r
r
q
q
Port 1
(N.C. IN)
(N.O. EXH)
o
o
!1
!1
!2
Port 3
(N.C. EXH)
(N.O. IN)
Port 2
(N.C. OUT)
(N.O. OUT)
!2
Description
1
Body
2
Tube assembly Note)
3
Armature
assembly
4
Return spring
5
Nut
6
Solenoid coil
7
O-ring
8
Clip
9
Guide pin
assembly
12 Plate
Port 3
(N.C. EXH)
(N.O. IN)
Port 2
(N.C. OUT)
(N.O. OUT)
No.
Description
Standard
Option
C37
Stainless steel
1
Manifold body
Stainless steel, Cu
Stainless steel, Ag
2
Tube assembly Note)
Stainless steel, C36, PTFE
(NBR)
Stainless steel, PTFE
(FKM, EPDM, FFKM)
3
Armature
assembly
4
Return spring
C37
C37/Ni plated
5
Nut
Class B molded
Class H molded
6
Solenoid coil
(FKM, EPDM, PTFE)
7
O-ring
8
Clip
9
Guide pin
assembly
Stainless steel
(NBR)
SK
PPS, C36 (NBR)
Stainless steel
(FKM, EPDM, FFKM)
Stainless steel
(NBR)
(FKM, EPDM, PTFE)
Stainless steel
The materials in parentheses are the seal materials.
Note) Cu and Ag are not applicable to the DC spec and to the AC spec with
built-in full-wave rectifier.
20
!0
Component Parts
Material
10 Support spring
11 O-ring
!3
Port 1
(N.C. IN)
(N.O. EXH)
!4
!0
Component Parts
No.
u
Material
Standard
Stainless steel, Cu
Stainless steel, C36, PTFE
(NBR)
Stainless steel
C37/Ni plated
Class B molded
Class H molded
(NBR)
14 Base
(FKM, EPDM)
SK
Stainless steel
(FKM, EPDM)
PPS, C36 (NBR)
Stainless steel
(NBR)
(FKM, EPDM)
Stainless steel
12 Plate
13 Gasket
Stainless steel, PTFE
(FKM, EPDM, FFKM)
C37
10 Support spring
11 O-ring
Option
C37
(NBR)
(FKM, EPDM)
Aluminum
The materials in parentheses are the seal materials.
Note) Cu is not applicable to the DC spec and to the AC spec with built-in
full-wave rectifier.
Series VX31/32/33
Direct Operated 3 Port Solenoid Valve
For Air, Water, Oil, Steam / Single Unit
Specifications
Dimensions: Single Unit / Body Material: C37, Stainless Steel
Normally closed (N.C.) : VX310/VX320/VX330
Normally open (N.O.) : VX312/VX322/VX332
Common (COM.)
: VX314/VX324/VX334
Conduit: C
Grommet: G
≅ 300
J
D
F
≅ 280
G1/2
J
F
For Water
A
B1
A
B1
B2
DIN terminal: D
For Oil
25
B2
For Air
C
K
3xP
Port size
E
3xP
Port size
Width
across
flats H
C
K
Width
across
flats H
E
25
D
Conduit terminal: T
J
M
D
F
J
34
For Steam
Cable ø6 to ø12
G1/2
F
For Vacuum Pad
N
3xP
Port size
A
B1
A
B1
B2
Construction
B2
C
C
M
E
E
3xP
Port size
K
Width
across
flats H
44
K
Width
across
flats H
25
D
G1/2
4
Q
T
Dimensions
With bracket
(mm)
Model
N.C., N.O., COM.
4 x ø5.5
Mounting hole
VX31
VX31
VX32
VX33
R
S
Orifice
diameter
Port size
ø1.5, ø2.2, ø3
ø1.5, ø2.2, ø3
ø2.2, ø3, ø4
ø2.2, ø3, ø4
1/8
1/4
1/4, 3/8
1/4, 3/8
P
Electrical entry (AC/Class B)
Grommet
Conduit
DIN terminal
J
J
K
K
30
46
33
36
56 51.5 51 68.5 52 56.5 103.5 51 72.5 105
64.5 54 59.5 71 60.5 59 106 59.5 75 113
48.5 41
K
65.5 42
M
Conduit terminal
J
J
K
53.5 100.5 41
M
N
69.5
91.5
(mm)
Model
N.C., N.O., COM.
VX31
VX31
VX32
VX33
Orifice
diameter
Port size
ø1.5, ø2.2, ø3
ø1.5, ø2.2, ø3
ø2.2, ø3, ø4
ø2.2, ø3, ø4
1/8
1/4
1/4, 3/8
1/4, 3/8
P
B
A
Electrical entry (DC, AC/Class H)
C
D
E
F
H
Grommet
30
19
19.5
27
35
40
22
22
22.5
25
32
36
22.5 60
25.5 68.5
B1 B2
22
24
24
36
41
42
42
18
76.5
20.5
21 90
21 98
DIN terminal
K
J
J
M
J
19.5 50
40
42.5 58.5 42
46.5
92
42.5 61
43
46
52.5 61.5 52 49.5
61 64 60.5 52
95
98
52.5 64 106.5 21
61 66.5 114.5 21
J
K
K
Conduit terminal
Bracket mounting
Conduit
K
M
N
Q
R
S
T
93
17.5
40
50
75.5
47
47
57
57
89
97
21
Series VVX31/32/33
For Air, Oil / Manifold
Dimensions: Manifold / Base Material: Aluminum
Normally closed (N.C.) :
Normally open (N.O.) : VVX31/VVX32/VVX33
Common (COM.)
:
N
33
W
Port indication
T
Q
2 x Rc1/4
44
Y
25
2 x øE
Mounting
hole
C
3
B
B
D
A
A
1
G1/2
L
L2
L1
Stations
1
2
12
U
3
4
n
5
M
U side
R
S
V
X
≅ 280
≅ 300
D side
L
H
F
2 x øE
Mounting hole
L
L
K
J
(mm)
Model
VVX31
VVX32
VVX33
Dimension
L1
L2
L1
L2
2
96
84
126
108
3
132
120
172
154
4
168
156
218
200
n (stations)
5
6
7
204 240 276
192 228 264
264 310 356
246 292 338
8
312
300
402
384
9
348
336
448
430
10
384
372
494
476
(mm)
Electrical entry (DC, AC/Class H)
Model
VVX31
VVX32
VVX33
A
40
44
44
B
20
22
22
C
9
10
10
D
22
24
24
E
6.5
8.5
8.5
F
33
34
34
H
24
25
25
J
26
31
31
K
36
46
46
L
6
9
9
M
49
55
55
N
19.5
22.5
25
Q
80.5
91
99.5
Grommet
Conduit
DIN terminal
Conduit terminal
R
S
T
T
U
V
W
19.5
22.5
25.5
40
43
46
45.5
54
62
45
53.5
61.5
58.5
61.5
64
46.5
49.5
52
92
95
98
X
Y
61
97
64
107.5
66.5 116
(mm)
Electrical entry (AC/Class B)
Model
VVX31
VVX32
VVX33
22
Grommet
Conduit
DIN terminal
R
S
T
T
U
30
33
36
48.5
51.5
54
44
52.5
60.5
45
53.5
61.5
65.5
68.5
71
V
Conduit terminal
W
53.5 100.5
56.5 103.5
59
106
X
Y
69.5 95.5
72.5 106
75
114.5
Direct Operated 3 Port Solenoid Valve
Series VX31/32/33
For Air, Water, Oil, Steam
Solenoid coil assembly part no.
AC/Class B coil (Built-in full-wave rectifier type)
VX02 1 N
Series
1
2
3
Rated voltage Note)
VX31
VX32
VX33
1
2
3
4
7
8
J
Rated voltage Note)
24 VDC
12 VDC
Note 1) Refer to Table (1)
for available
combinations.
G -Grommet
GS-With grommet surge
Note 1) Refer to Table (1) for
available combinations.
Electrical entry
Electrical entry
C -Conduit
voltage suppressor
T -With conduit terminal
TS -With conduit terminal and
D -DIN terminal
DS -DIN terminal with surge
surge voltage suppressor
voltage suppressor
TL -With conduit terminal
Connector
DL -DIN terminal with light
DZ -DIN terminal with surge
and light
TZ -With conduit
G -Grommet
C -Conduit
T -With conduit terminal
TL -With conduit terminal
D -DIN terminal
Connector
DL -DIN terminal with light
DO -For DIN terminal
For Oil
5
6
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
48 VAC 50/60 Hz
230 VAC 50/60 Hz
and light
(without connector)
voltage suppressor
and light
DO -For DIN terminal
(without connector)
terminal,
surge voltage
suppressor and
light
∗ Refer to Table (1) for available combinations between each electrical option
and rated voltage.
∗ Refer to Table (1) for available combinations between each electrical option
and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B coil, as a standard.
AC/Class H coil
Table (1) Rated Voltage – Electrical Option
VX02 1 N
1 G H 2 Z
Series
1
2
3
VX31
VX32
VX33
Rated voltage
AC/
DC
AC
Rated voltage Note)
1
2
3
4
7
8
J
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
48 VAC 50/60 Hz
230 VAC 50/60 Hz
DC
With surge
Voltage
Voltage voltage
symbol
suppressor
1
100 V
200 V
2
110 V
3
220 V — Note)
4
240 V
7
48 V
8
230 V
J
24 V
5
12 V
6
L
Class H
Z
S
L
Z
—
—
—
—
—
—
With light and With surge
surge voltage voltage
suppressor suppressor
With
light
With light and
surge voltage
suppressor
With
light
— Note)
—
—
—
—
—
DC specification is not
available.
Note) Option S, Z are not available since a surge voltage suppressor is
integrated into the AC/Class B coil, as a standard.
∗ When changing coils, AC/DC are not interchangeable with each other, and
Class B and H coils are also not interchangeable with each other.
Note 1) Refer to Table (1) for
available combinations.
G -Grommet
GS-With grommet surge
Class B
S
For Steam
VX31
VX32
VX33
For Air
Series
1
2
3
1 GR
For Water
5 G
For Vacuum Pad
VX02 1 N
Electrical entry
C -Conduit
voltage suppressor
T -With conduit terminal
TS -With conduit terminal and surge voltage suppressor
TL -With conduit terminal and light
TZ -With conduit terminal, surge voltage suppressor and
light
∗ Refer to Table (1) for available combinations between each electrical option
and rated voltage.
23
Construction
DC
Dimensions
Specifications
Replacement Parts
Series VX31/32/33
For Air, Water, Oil, Steam
Replacement Parts
Name plate part no.
AZ-T-VX
Clip
Valve model
Enter by referring to
“How to Order”.
Name plate
Clip part no.
Solenoid coil
For VX31: VX021N-10
For VX32: VX022N-10
For VX33: VX023N-10
DIN connector part no.
Without electrical option
With electrical option
GDM2A
GDM2A
Electrical option
S
L
Z
With surge voltage suppressor
With light
With light and surge voltage suppressor
∗ Refer to Table (1) for available combinations
between each electrical option (S, L, Z) and rated
voltage.
Rated voltage
1
2
5
6
15
100 VAC, 110 VAC
200 VAC, 220 VAC, 230 VAC, 240 VAC
24 VDC
12 VDC
48 VAC
Gasket part no. for DIN connector
VCW20-1-29-1
24
Solenoid Valve Flow Characteristics
(How to indicate flow characteristics)
1. Indication of flow characteristics
Indication of the flow characteristics in specifications for equipment such as solenoid valve, etc. is depending on “Table (1)”.
Table (1) Indication of Flow Characteristics
Corresponding
equipment
Indication by
Other
international standard indications
Equipment for
pneumatics
Equipment for
controlling
process fluids
Standards conforming to
C, b
—
ISO 6358: 1989
JIS B 8390: 2000
—
S
JIS B 8390: 2000
Equipment: JIS B 8373, 8374, 8375, 8379, 8381
Cv
ANSI/(NFPA)T3.21.3: 1990
Av
—
—
Cv
IEC60534-2-3: 1997
JIS B 2005: 1995
Equipment: JIS B 8471, 8472, 8473
2. Equipment for pneumatics
2.1 Indication according to the international standards
(1) Standards conforming to
ISO 6358: 1989
: Pneumatic fluid power—Components using compressible fluids—
Determination of flow-rate characteristics
JIS B 8390: 2000 : Pneumatic fluid power—Components using compressible fluids—
How to test flow-rate characteristics
(2) Definition of flow characteristics
Flow rate characteristics are indicated as a result of a comparison between sonic conductance C and critical pressure ratio b.
Sonic conductance C : Values which divide the passing mass flow rate of an equipment in a choked flow condition by the
product of the upstream absolute pressure and the density in the standard condition.
Critical pressure ratio b : It is the pressure ratio which will turn to the choke flow (downstream pressure/upstream pressure)
when it is smaller than this values. (critical pressure ratio)
Choked flow
: It is the flow in which the upstream pressure is higher than the downstream pressure and where
sonic speed in a certain part of an equipment is reached.
Gaseous mass flow rate is in proportion to the upstream pressure and not dependent on the
downstream pressure. (choked flow)
Subsonic flow
: Flow greater than the critical pressure ratio
Standard condition
: Air in a temperature state of 20C, absolute pressure 0.1 MPa (= 100 kPa = 1 bar), relative humidity
65%.
It is stipulated by adding the abbreviation (ANR) after the unit depicting air volume.
(standard reference atmosphere)
Standard conforming to: ISO 8778: 1990 Pneumatic fluid power—Standard reference
atmosphere, JIS B 8393: 2000: Pneumatic fluid power—Standard reference atmosphere
(3) Formula of flow rate
It can be indicated by the practical unit as following.
When
P2 + 0.1
———— b, choked flow
P1 + 0.1
293
Q = 600 x C (P1 + 0.1) ———— ·····························································(1)
273 + t
When
P2 + 0.1
———— > b, subsonic flow
P1 + 0.1
Q = 600 x C (P1 + 0.1)
2
P2 + 0.1
———— – b
P1 + 0.1
1 – ——————
————
293 ···························· (2)
1–b
273 + t
Q : Air flow rate [dm3/min (ANR)], dm3 (Cubic decimeter) of SI unit are also allowed to
described by l (liter). 1 dm3 = 1 l .
25
Solenoid Valve Flow Characteristics
C
b
P1
P2
t
: Sonic conductance [dm3/(s·bar)]
: Critical pressure ratio [—]
: Upstream pressure [MPa]
: Downstream pressure [MPa]
: Temperature [C]
Note) Formula of subsonic flow is the elliptic analogous curve.
Flow characteristics curve is indicated in the Graph (1) For details, please use SMC’s “Energy Saving Program”.
Example)
Obtain the air flow rate for P1 = 0.4 [MPa], P 2 = 0.3 [MPa], t = 20 [C] when a solenoid valve is performed in
C = 2 [dm3/(s·bar)] and b = 0.3.
According to formula 1, the maximum flow rate = 600 x 2 x (0.4 + 0.1) x
293
————— = 600 [dm3/min (ANR)]
273 + 20
Flow rate ratio
0.3 + 0.1
Pressure ratio = ————— = 0.8
0.4 + 0.1
Based on the Graph (1), it is going to be 0.7 if it is read by the pressure ratio as 0.8 and the flow ratio to be b = 0.3.
Hence, flow rate = Max. flow x flow ratio = 600 x 0.7 = 420 [dm3/min (ANR)]
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0.5
b = 0.1
0.6
0.2
0.3
0.4
P1
Equipment
C, b
P2
Q
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
Pressure ratio (P2 + 0.1) / (P1 + 0.1)
Graph (1) Flow characteristics line
(4) Test method
By attaching a test equipment with the test circuit indicated in Fig. (1) while maintaining to a certain amount which does not let
the upstream pressure go down below 0.3 MPa, measure the maximum flow to be saturated in the first place. Next, measure this
flow rate at 80%, 60%, 40%, 20% and the upstream and downstream pressure. And then, obtain the sonic conductance C from
this maximum flow rate. Besides that, substitute each data of others for the formula of subsonic flow in order to find b, then
obtain the critical pressure ratio b from that average.
Pressure gauge or
pressure convertor
Air supply
Filter
ød3 3d1
Differential pressure gauge or
differential pressure converter
3d3
Shut off
valve
ød2
Pressure control
equipment
ød1
Thermometer
Flow control valve
Flow meter
10d3
10d1
Pipe for measuring
temperature
3d1 10d2
3d2
Equipment
for test
Pipe for measuring
pressure in the
upstream side
Pipe for measuring
pressure in the
downstream side
Fig. (1) Test circuit based on ISO 6358, JIS B 8390
26
Solenoid Valve Flow Characteristics
2.2 Effective area S
(1) Standards conforming to
JIS B 8390: 2000: Pneumatic fluid power—Components using compressible fluids—
Determination of flow rate characteristics
Equipment standards: JIS B 8373: 2 port solenoid valve for pneumatics
JIS B 8374: 3 port solenoid valve for pneumatics
JIS B 8375: 4 port, 5 port solenoid valve for pneumatics
JIS B 8379: Silencer for pneumatics
JIS B 8381: Fittings of flexible joint for pneumatics
(2) Definition of flow characteristics
Effective area S: is the cross-sectional area having an ideal throttle without friction deduced from the calculation of the pressure
changes inside an air tank or without reduced flow when discharging the compressed air in a choked flow, from
an equipment attached to the air tank. This is the same concept representing the “easy to run through” as sonic
conductance C (effective area).
(3) Formula of flow rate
When
P2 + 0.1
———— 0.5, choked flow
P1 + 0.1
293
Q = 120 x S (P1 + 0.1) ————··································································(3)
273 + t
When
P
2 + 0.1 > 0.5, subsonic flow
————
P1 + 0.1
Q = 240 x S (P2 + 0.1) (P1 – P2)
293
————··············································(4)
273 + t
Timer (Clock)
Pressure recorder
Rectifier tube in the
downstream side
or
pressure converter
Rectifier tube in the
upstream side
Conversion with sonic conductance C:
S = 5.0 x C·······································································································(5)
Q : Air flow rate[dm3/min(ANR)], dm3 (cubic decimeter) of SI unit is good to be described by l (liter), too. 1 dm3 = 1 l
S : Effective area [mm2]
P1 : Upstream pressure [MPa]
P2 : Downstream pressure [MPa]
t : Temperature [C]
Note) Formula for subsonic flow (4) is only applicable when the critical pressure ratio b is the unknown equipment. In the formula
by sonic conductance C (2), it is the same formula when b = 0.5.
(4) Test method
By attaching the equipment for testing with the test circuit shown in Fig. (2), discharge air into the atmosphere until the pressure
inside the air tank goes down to 0.25 MPa (0.2 MPa) from an air tank filled with compressed air of a certain pressure (0.5 MPa)
which does not go down below 0.6 MPa. At this time, measure the discharging time and the residual pressure inside the air tank
which had been left until it turned to be the normal values, and then determine the effective area S by using the following
formula. The volume of air tank should be selected within the specified range by corresponding to the effective area of the
equipment being tested. In the case of JIS B 8373, 8374, 8375, 8379, 8381, the pressure values are in parentheses and the
coefficient of formula is 12.9.
V
Ps + 0.1
293
S = 12.1 — log10 (—————) —— ·················(6)
t
P + 0.1
T
Power
S : Effective area [mm2]
supply
Pressure
switch
3
V : Air tank capacity [dm ]
Thermometer
t : Discharging time [s]
Control
Solenoid
Pressure control
Ps : Pressure inside air tank
circuit
valve
equipment
before discharging [MPa]
Equipment for test
P : Residual pressure inside air tank
after discharging [MPa]
Air supply Filter
T : Temperature inside air tank
Shut off
Pressure gauge
valve
before discharging [K]
Fig. (2) Test circuit based on JIS B 8390
27
Solenoid Valve Flow Characteristics
2.3 Flow coefficient Cv factor
The United States Standard ANSI/(NFPA)T3.21.3:1990: Pneumatic fluid power—Flow rating test procedure
and reporting method for fixed orifice components
defines the Cv factor of flow coefficient by the following formula which is based on the test conducted by the test circuit
analogous to ISO 6358.
Q
Cv = ——————————— ·········································································(7)
P ( P 2 + P a)
114.5 ——————
T1
P : Pressure drop between the static pressure tapping ports [bar]
P1 : Pressure of the upstream tapping port [bar gauge]
P2 : Pressure of the downstream tapping port [bar gauge]:P2 = P1 – P
Q : Flow rate [dm3/s standard condition]
Pa : Atmospheric pressure [bar absolute]
T1 : Test conditions of the upstream absolute temperature [K]
is < P1 + Pa = 6.5 0.2 bar absolute, T1 = 297 5K, 0.07 bar P 0.14 bar.
This is the same concept as effective area A which ISO6358 stipulates as being applicable only when the pressure drop is
smaller than the upstream pressure and the compression of air does not become a problem.
3. Equipment for process fluids
(1) Standards conforming to
IEC60534-2-3: 1997: Industrial process control valves. Part 2: Flow capacity, Section Three-Test
procedures
JIS B 2005: 1995: Test method for the flow coefficient of a valve
Equipment standards: JIS B 8471: Regulator for water
JIS B 8472: Solenoid valve for steam
JIS B 8473: Solenoid valve for fuel oil
(2) Definition of flow characteristics
Av factor: Value of the clean water flow rate represented by m3/s which runs through a valve (equipment for test) when the
pressure difference is 1 Pa. It is calculated using the following formula.
ρ
Av = Q ————·····································································································(8)
P
Av : Flow coefficient [m2]
Q : Flow rate [m3/s]
P : Pressure difference [Pa]
ρ : Density of fluid [kg/m3]
(3) Formula of flow rate
It is described by the known unit. Also, the flow characteristics line shown in the Graph (2).
In the case of liquid:
P
Q = 1.9 x 106Av ————·······················································································(9)
G
Q : Flow rate [l/min]
Av : Flow coefficient [m2]
P : Pressure difference [MPa]
G : Relative density [water = 1]
In the case of saturated aqueous vapor:
Q = 8.3 x 106Av P(P2 + 0.1) ··············································································(10)
Q
Av
P
P1
P2
28
: Flow rate [m3/s]
: Flow coefficient [m2]
: Pressure difference [Pa]
: Relative density [MPa]: P = P1 – P2
: Relative density [MPa]
Solenoid Valve Flow Characteristics
Conversion of flow coefficient:
Av = 28 x 10–6 Kv = 24 x 10–6Cv ···········································································(11)
Here,
Kv factor: Value of the clean water flow rate represented by the m3/h which runs through the valve at 5 to 40ºC, when the
pressure difference is 1 bar.
Cv factor (Reference values): It is the figures representing the flow rate of clean water by US gal/min which runs through the
valve at 60ºF, when the pressure difference is 1 lbf/in2 (psi).
Values of pneumatic Kv are different from Cv because the testing method is different from each other.
3
3
2
Upstream pressure
P1 = 1 MPa
Ex. 2
P1 = 0.6 MPa
P1 = 0.5 MPa
P1 = 0.4 MPa
0.4
P1 = 0.3 MPa
0.3
Ex. 1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
P1 = 0.2 MPa
0.2
0.2
l
P1 = 0.8 MPa
1
0.9
0.8
0.7
0.6
0.5
Water flow rate Q0 [ /min]
(When < when Av = 1 x 10–6 [m2])
Saturated aqueous vapor flow rate Q0 [kg/h]
(when Av = 1 x 10–6 [m2])
2
P1 = 0.1 MPa
0.1
0.001
0.002 0.003 0.004
0.01
0.02 0.03 0.04
0.1
0.1
Pressure differential P [MPa]
Graph (2) Flow characteristics line
Example 1)
Obtain the pressure difference when water 15 [l/min] runs through the solenoid valve with an Av = 45 x 10–6 [m2].
Since Q0 = 15/45 = 0.33 [ /min], according to the Graph (2), if reading P when Q0 is 0.33, it will be 0.031 [MPa].
Example 2)
Obtain the flow rate of saturated aqueous vapor when P1 = 0.8 [MPa], P = 0.008 [MPa] with a solenoid valve with an Av =1.5 x 10–6
[m2].
According to the Graph (2), if reading Q0 when P1 is 0.8 and P is 0.008, it is 0.7 [kg/h]. Hence, the flow rate Q = 0.7 x 1.5 = 1.05
[kg/h].
(4) Test method
By attaching the equipment for testing with the test circuit shown in Fig. (3) and running water at 5 to 40ºC, measure the flow rate
with a pressure difference of 0.075 MPa. However, the pressure difference needs to be set with a large enough difference so that
the Reynolds number does not go below a range of 4 x 104.
By substituting the measurement results for formula (8) to figure out Av.
Test range
Thermometer
Pressure
tap
Throttle valve
in the
upstream side
Flow
meter
2d
20d
Equipment
for test
Pressure
tap
6d
10d
Throttle valve
in the
downstream
side
Fig. (3) Test circuit based on IEC60534-2-3, JIS B 2005
29
Flow Characteristics
Note) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer to
pages 25 through to 29.
For Air
How to read the graph
am
p re
ssu
re
o
The sonic range pressure to generate a flow rate
of 100 l/min (ANR) is
P1 ≅ 0.1 MPa for a ø3 orifice (VX313),
P1 ≅ 0.23 MPa for a ø2.2 orifice (VX312), and
P1 ≅ 0.55 MPa for a ø1.5 orifice (VX311).
f va
ve
Downstream pressure of valve (P2) MPa
Upst
re
ic
on
bs
Su
al
itic re
Cr essu
pr
nic
So
Flow rate Q l/min (ANR)
For Water
How to read the graph
Flow rate Q l/min
When a water flow of 2 l/min is generated,
P ≅ 0.033 MPa for a ø3 orifice (VX313),
P ≅ 0.088 MPa for a ø2.2 orifice (VX312), and
P ≅ 0.31 MPa for a ø1.5 orifice (VX311).
Pressure differential P = (P1 – P2) MPa
30
Glossary
Pressure Terminology
1. Maximum operating pressure differential
The maximum pressure differential (the difference between
the inlet and outlet pressure) which is allowed for operation,
with the valve closed or open. When the downstream pressure
is 0 MPa, this becomes the maximum operating pressure.
2. Minimum operating pressure differential
The minimum pressure differential (differential between the
inlet pressure and the outlet pressure) required to keep the
main valve fully opened.
3. Maximum system pressure
The maximum pressure that can be applied inside the
pipelines (line pressure).
(The pressure differential of the solenoid valve unit must be
less than the maximum operating pressure differential.)
4. Proof pressure
The pressure in which the valve must be withstood without a
drop in performance after holding for one minute under
prescribed pressure and returning to the operating pressure
range. (value under the prescribed conditions)
Others
1. Material
NBR: Nitrile rubber
FKM: Fluoro rubber – Trade name: Viton®, DAI-EL™, etc.
EPDM: Ethylene propylene rubber
PTFE: Polytetrafluoroethylene resin – Trade name: Teflon®,
Polyflon®, etc.
FFKM: Perfluoroelastomer
Trade name: Kalrez®, Chemraz®
2. Oil-free treatment
The degreasing and washing of wetted parts.
3. Passage symbol
In the JIS symbol (
) IN and OUT are in a blocked condition ( ), but actually in the case of reverse pressure (OUT>IN),
there is a limit to the blocking.
( ) is used to indicate that blocking of reverse pressure is not
possible.
Electrical Terminology
1. Apparent power (VA)
Volt-ampere is the product of voltage (V) and current (A).
Power dissipation (W): For AC , W = V•A•cosθ. For DC, W =
V•A.
(Note) cosθ shows power factor. cosθ = 0.6
2. Surge voltage
A high voltage which is momentarily generated in the shut-off
unit by shutting off the power.
3. Enclosure
A degree defined in the “JIS C 0920: Waterproof test of
electric machinery/appliance and the degree of protection
against the intrusion of solid foreign objects”.
IP65: Dust-tight, Low jetproof type
“Low jetproof type” means that no water intrudes inside an
equipment that could hinder from operating normally by
means of discharging water for 3 minutes in the prescribed
manner. Take appropriate protection measures, since a
device is not usable in an environment where a water drop is
splashed.
31
Series VX31/32/33
Safety Instructions
The following safety instructions are intended to prevent a hazardous situation
and/or equipment damage. These instructions indicate the level of potential hazard
by all safety practices, including labels of "Caution", "Warning" or "Danger". To
ensure safety, please observe ISO 4414 Note 1), JIS B 8370 Note 2).
Caution: Operator error could result in injury or equipment damage.
Warning: Operator error could result in serious injury or loss of life.
Danger : In extreme conditions, there is a possible result of serious injury or loss of life.
Note 1) ISO 4414: Pneumatic fluid power – General rules relating to systems
Note 2) JIS B 8370: General Rules for Pneumatic Equipment
Warning
1. The compatibility of equipment is the responsibility of the person who
designs the system or decides its specifications.
Since the products specified here are used in various operating conditions, their compatibility with a
specific system must be based on specifications, post analysis and/or tests to meet a specific
requirement. The expected performance and safety assurance will be the responsibility of the person
who has determined the compatibility of the system. This person should continuously review the
suitability of all items specified, referring to the latest catalog information and taking into consideration
the possibility of equipment failure when configuring a system. Be particularly careful in determining
the compatibility with the fluid to be used.
2. Only trained personnel should operate machinery and equipment.
The fluid can be dangerous if handled incorrectly. Assembly, handling or maintenance of the system
should be performed by trained and experienced operators.
3. Do not service machinery/equipment or attempt to remove components until
the safety is confirmed.
1. Inspection and maintenance of machinery/equipment should only be performed once measures to
prevent falling or runaway of the driven object have been confirmed. Measures to prevent danger
from a fluid should also be confirmed.
2. When equipment is to be removed, confirm the safety processes mentioned above, release the fluid
pressure and be certain there is no danger from fluid leakage or fluid remaining in the system.
3. Carefully restart the machinery, confirming that safety measures are being implemented.
4. If the equipment will be used in the following conditions or environment,
please contact SMC first and be sure to take all necessary safety precautions.
1. Conditions and environments beyond the given specifications, or if product is used outdoors.
2. With fluids whose application causes concern due to the type of fluid or additives, etc.
3. An application which has the possibility of having a negative effect on people, property, and
therefore requires special safety analysis.
Back page 1
3 Port Solenoid Valve for Fluid Control
Precautions 1
Be sure to read this before handling.
For detailed precautions on each series, refer to the main text.
Design
Selection
Warning
Warning
1. Cannot be used as an emergency shutoff
valve, etc.
The valves presented in this catalog are not designed for
safety applications such as an emergency shutoff valve. If the
valves are used in this type of system, other reliable safety
assurance measures should also be adopted.
2. Extended periods of continuous energization
The solenoid coil will generate heat when continuously
energized. Avoid using in a tightly shut container. Install it in a
well-ventilated area. Furthermore, do not touch it while it is
being energized or right after it is energized.
3. This solenoid valve cannot be used for
explosion proof applications.
4. Maintenance space
The installation should allow sufficient space for maintenance
activities.
5. Liquid rings
In cases with a flowing liquid, provide a bypass valve in the
system to prevent the liquid from entering the liquid seal
circuit.
6. Actuator drive
When an actuator, such as a cylinder, is to be driven using a
valve, take appropriate measures to prevent potential danger
caused by actuator operation.
7. Pressure (including vacuum) holding
It is not usable for an application such as holding the pressure
(including vacuum) inside of a pressure vessel because air
leakage is entailed in a valve.
8. When the conduit type is used as equivalent
to an IP65 enclosure, install a wiring conduit,
etc.
9. When an impact, such as water hammer,
etc., caused by the rapid pressure fluctuation is applied, the solenoid valve may be
damaged. Give an attention to it.
Selection
Warning
1. Confirm the specifications.
Give careful consideration to the operating conditions such as
the application, fluid and environment, and use within the
operating ranges specified in this catalog.
2. Fluid
1) Type of fluid
Before using a fluid, confirm whether it is compatible with
the materials from each model by referring to the fluids
listed in this catalog. Use a fluid with a dynamic viscosity of
50 mm2/s or less. If there is something you do not know,
please contact us.
2) Inflammable oil, Gas,
Confirm the specification for leakage in the interior and/or
exterior area.
3) Corrosive gas
Cannot be used since it will lead to cracks by stress
corrosion or result in other incidents.
4) Use an oil-free specification when any oily particle must
not enter the passage.
5) Applicable fluid on the list may not be used depending
on the operating condition.
Give adequate confirmation, and then determine a model, just
because the compatibility list shows the general case.
3. Fluid quality
The use of a fluid which contains foreign matter can cause
problems such as malfunction and seal failure by promoting
wear of the valve seat and armature, and by sticking to the
sliding parts of the armature, etc. Install a suitable filter
(strainer) immediately upstream from the valve. As a general
rule, use 80 to 100 mesh.
When used to supply water to boilers, substances such as
calcium and magnesium which generate hard scale and
sludge are included. Since this scale and sludge can cause the
valve to malfunction, install water softening equipment, and a
filter (strainer) directly upstream from the valve to remove
these substances.
4. Air quality
1) Use clean air.
Do not use compressed air which includes chemicals,
synthetic oils containing organic solvents, salt or corrosive
gases, etc., as it can cause damage or malfunction.
2) Install air filters.
Install air filters close to valves at their upstream side. A
filtration degree of 5 m or less should be selected.
3) Install an air dryer or after-cooler, etc.
Compressed air that includes excessive drainage may
cause malfunction of valves and other pneumatic equipment. To prevent this, install an air dryer or after-cooler, etc.
4) If excessive carbon powder is generated, eliminate it by
installing mist separators at the upstream side of valves.
If excessive carbon powder is generated by the compressor,
it may adhere to the inside of the valves and cause a
malfunction.
Refer to SMC’s “Best Pneumatics 2004” Vol. 14 catalog for
further details on compressed air quality.
5. Ambient environment
Use within the operable ambient temperature range. Confirm
the compatibility between the product’s composition materials
and the ambient atmosphere. Be sure that the fluid used does
not touch the external surface of the product.
6. Countermeasures against static electricity
Take measures to prevent static electricity since some fluids
can cause static electricity.
7. For the low particle generation specification,
confirm us separately.
Back page 2
3 Port Solenoid Valve for Fluid Control
Precautions 2
Be sure to read this before handling.
For detailed precautions on each series, refer to the main text.
Selection
Piping
Caution
Caution
1. Leakage voltage
1. Preparation before piping
Particularly when using a resistor in parallel with a switching
element and using a C-R element (surge voltage suppressor)
to protect the switching element, take note that leakage
current will flow through the resistor, C-R element, etc.,
creating a possible danger that the valve may not turn off.
Power supply
Switching element
Leakage voltage
OFF
C
R
Valve
Leakage current
Before piping is connected, it should be thoroughly blown out
with air (flushing) or washed to remove chips, cutting oil and
other debris from inside the pipe.
Install piping so that it does not apply pulling, pressing,
bending or other forces on the valve body.
2. Wrapping of pipe tape
When connecting pipes, fittings, etc., be sure that chips from
the pipe threads and sealing material do not enter the valve.
Furthermore, when pipe tape is used, leave 1.5 to 2 thread
ridges exposed at the end of the threads.
AC/Class B coil : 5% or less of rated voltage
AC/Class H coil : 20% or less of rated voltage
DC coil
: 2% or less of rated voltage
Winding
direction
Ex
po
2. Low temperature operation
1. The valve can be used in an ambient temperature of
between –10 to –20ºC, however take measures to
prevent freezing or solidification of impurities, etc.
2. When using valves for water application in cold
climates, take appropriate countermeasures to prevent
the water from freezing in tubing after cutting the water
supply from the pump, by draining the water, etc.
When heating by steam, be careful not to expose the coil
portion to steam. Installation of dryer, heat retaining of the
body is recommended to prevent a freezing condition in
which the dew point temperature is high and the ambient
temperature is low, and the high flow runs.
Mounting
Warning
1. If air leakage increases or equipment does
not operate properly, stop operation.
After mounting is completed, confirm that it has been done
correctly by performing a suitable function test.
2. Do not apply external force to the coil section.
When tightening is performed, apply a wrench or other tool to
the outside of the piping connection parts.
3. Be sure not to position the coil downwards.
When mounting a valve with its coil positioned downwards,
foreign objects in the fluid will adhere to the iron core leading
to a malfunction.
4. Do not warm the coil assembly with a heat
insulator, etc.
Use tape, heaters, etc., for freeze prevention on the piping and
body only. They can cause the coil to burn out.
5. Secure with brackets, except in the case of
steel piping and copper fittings.
6. Avoid sources of vibration, or adjust the arm
from the body to the minimum length so that
resonance will not occur.
7. Painting and coating
Warnings or specifications printed or labeled on the product
should not be erased, removed or covered up.
Back page 3
se
Pipe tape
ap
pr
ox
.2
thr
ea
ds
3. Avoid connecting ground lines to piping, as
this may cause electric corrosion of the
system.
4. Always tighten threads with the proper tightening torque.
When attaching fittings to valves, tighten with the proper
tightening torque shown below.
Tightening Torque for Piping
Connection threads
Proper tightening torque N·m
Rc 1/8
7 to 9
Rc 1/4
12 to 14
Rc 3/8
22 to 24
Rc 1/2
28 to 30
5. Connection of piping to products
When connecting piping to a product, refer to its instruction
manual to avoid mistakes regarding the supply port, etc.
6. Steam generated in a boiler contains a large
amount of drainage.
Be sure to operate it with a drain trap
installed.
7. In applications such as vacuum and non-leak
specifications, use caution specifically
against the contamination of foreign matter
or airtightness of the fittings.
3 Port Solenoid Valve for Fluid Control
Precautions 3
Be sure to read this before handling.
For detailed precautions on each series, refer to the main text.
Wiring
Grommet
Class H coil: AWG18 Insulator O.D. 2.2 mm
Class B coil: AWG20 Insulator O.D. 2.5 mm
q
In cases with a DC power supply where importance is placed
on responsiveness, stay within 5% of the rated value. The
voltage drop is the value in the lead wire section connecting
the coil.
Or, adopt an option that comes with the surge voltage protection circuit. (However, a surge voltage occurs even if the surge
voltage protection circuit is used. For details, please consult
with us.)
Lead wire color
Rated voltage
q
w
DC (Class B only)
Black
Red
100 VAC
Blue
Blue
200 VAC
Red
Red
Other AC
Gray
Gray
∗ There is no polarity.
DIN terminal (Class B only)
Since internal connections are as shown below for the DIN
terminal, make connections to the power supply accordingly.
1: +
1
(–)
—
2: –
2
4. When a surge from the solenoid affects the
electrical circuitry, install a surge absorber,
etc., in parallel with the solenoid.
w
+
1. As a rule, use electrical wire with a cross
sectional area of 0.5 to 1.25 mm2 for wiring.
Furthermore, do not allow excessive force to
be applied to the lines.
2. Use electrical circuits which do not generate
chattering in their contacts.
3. Use voltage which is within 10% of the rated
voltage.
Caution
3
Caution
Electrical Connections
(+)
Terminal no.
1
2
DIN terminal
+ (–)
– (+)
∗ There is no polarity.
• Use compatible heavy duty cords with cable O.D. of ø6 to 12.
• Use the tightening torques below for each section.
Connector
Binding head screw with flange
Tightening torque 0.5 to 0.6 N·m
Washer
Compatible cable Note)
(Cable O.D. ø6 to 12 mm)
Rubber seal
Binding head screw
Tightening torque 0.5 to 0.6 N·m
Gasket
Note) For an outside cable diameter of ø9 to 12 mm, remove the
internal parts of the rubber seal before using.
Back page 4
3 Port Solenoid Valve for Fluid Control
Precautions 4
Be sure to read this before handling.
For detailed precautions on each series, refer to the main text.
Electrical Connections
Electrical Circuits
Caution
Caution
DC circuit
Conduit terminal
In the case of the conduit terminal, make connections according to
the marks shown below.
• Use the tightening torques below for each section.
• Properly seal the terminal connection (G1/2) with the special
wiring conduit, etc.
Grommet, Conduit, Conduit
terminal, DIN terminal
Grommet, Conduit terminal,
DIN terminal
ZNR
1 (+, –)
1 (+, –)
SOL.
SOL.
Terminal cover
2
-
1
+
+ mark
– mark
Round head
combination screw
M3
Tightening torque
0.5 to 0.6 N⋅m
2 (–, +)
A
G1/2
Tightening
torque
0.5 to 0.6 N·m
2 (–, +)
Without electrical option
Conduit terminal,
DIN terminal
Conduit terminal,
DIN terminal
1 (+, –)
A
With surge voltage suppressor
ZNR
1 (+, –)
SOL.
Round head
combination screw
M3
Tightening torque
0.5 to 0.6 N⋅m
2 (–, +)
SOL
2 (–, +)
Conduit terminal
Light
Light
With light
View A-A
(Internal connection diagram)
With light/surge voltage suppressor
AC/Class B coil circuit
Conduit
When used as an IP65 equivalent, use seal (part no. VCW2015-6) to install the wiring conduit. Also, use the tightening torque
below for the conduit.
Grommet, Conduit, Conduit
terminal, DIN terminal
ZNR
Rectifier
element
1
Class H coil: AWG18 Insulator O.D. 2.2 mm
∗ Surge voltage suppressor is attached to the
AC/Class B coil, as a standard.
Conduit terminal, DIN terminal
ZNR
1
Rectifier
element
SOL.
SOL.
Class B coil: AWG20 Insulator O.D. 2.4 mm
2
2
Lead wire
Light
q
Without electrical option
With light
w
AC/Class H coil circuit
Seal (VCW20-15-6)
Wiring conduit
(Bore size G1/2 Tightening torque 0.5 to 0.6 N·m)
Rated voltage
Grommet, Conduit,
Conduit terminal
Grommet,
Conduit terminal
ZNR
Lead wire color
q
w
DC
Black
Red
100 VAC
Blue
Blue
200 VAC
Red
Red
Other AC
Gray
Gray
1
1
SOL.
2
SOL.
2
Without electrical option
With surge voltage suppressor
∗ There is no polarity for DC.
Description
Part no.
Seal
VCW20-15-6
Note) Please order separately.
Conduit terminal
Conduit terminal
ZNR
1
1
SOL.
2
2
Light
With light
Back page 5
SOL.
Light
With light/surge voltage supressor
3 Port Solenoid Valve for Fluid Control
Precautions 5
Be sure to read this before handling.
For detailed precautions on each series, refer to the main text.
Operating Environment
Warning
Maintenance
Caution
1. Do not use the valves in an atmosphere
having corrosive gases, chemicals, salt
water, water, steam, or where there is direct
contact with any of these.
2. Do not use in explosive atmospheres.
3. Do not use in locations subject to vibration
or impact.
4. Do not use in locations where radiated heat
will be received from nearby heat sources.
5. Employ suitable protective measures in
locations where there is contact with water
droplets, oil or welding spatter, etc.
Lubrication
Caution
1. Filters and strainers
1. Be careful regarding clogging of filters and strainers.
2. Replace filter elements after one year of use, or earlier
if the pressure drop reaches 0.1 MPa.
3. Clean strainers when the pressure drop reaches 0.1
MPa.
2. Lubrication
When using after lubricating, never forget to lubricate continuously.
3. Storage
In case of long term storage after use with heated water,
thoroughly remove all moisture to prevent rust and deterioration of rubber materials, etc.
4. Exhaust the drain from an air filter periodically.
Operating Precautions
1. This solenoid valve can be operated without
lubrication.
If a lubricant is used in the system, use turbine oil Class 1, ISO
VG32 (with no additive). But do not lubricate a valve with
EPDM seal.
Refer to the table of brand name of lubricants compliant with
Class 1 turbine oil (with no additive), ISO VG32.
Warning
1. Valves will reach high temperatures from
high temperature fluids. Use caution, as
there is a danger of being burned if a valve
is touched directly.
Class 1 Turbine Oil (with no additive), ISO VG32
Classification of
viscosity (cst)
(40C)
Viscosity
according to
ISO Grade
32
Turbine oil P-32
Idemitsu Kosan Co.,Ltd.
Turbine oil 32
Nippon Oil Corp.
Cosmo Oil Co.,Ltd.
Cosmo turbine 32
Japan Energy Corp.
Kyodo turbine 32
Kygnus Oil Co.
Turbine oil 32
Kyushu Oil Co.
Stork turbine 32
Mitsubishi turbine 32
Nippon Oil Corp.
Turbine 32
Showa Shell Sekiyu K.K.
Tonen General Sekiyu K.K.
General R turbine 32
Fucoal turbine 32
Fuji Kosan Co.,Ltd.
Please contact SMC regarding Class 2 turbine oil (with additives), ISO VG32.
Maintenance
Warning
1 Removing the product
The valve will reach a high temperature when used with high
temperature fluids. Confirm that the valve temperature has
dropped sufficiently before performing work. If touched
inadvertently, there is a danger of being burned.
1. Shut off the fluid supply and release the fluid pressure
in the system.
2. Shut off the power supply.
3. Demount the product.
2. Low frequency operation
Switch valves at least once every 30 days to prevent malfunction. Also, in order to use it under the optimum state, conduct
a regular inspection once a half year.
Back page 6
Record of changes
B edition ∗ Changes of fluid and ambient temperature
For water, oil Max. temperature 40C → 60C
KZ
Akihabara UDX 15F,
4-14-1, Sotokanda, Chiyoda-ku, Tokyo 101-0021, JAPAN
Phone: 03-5207-8249 FAX: 03-5298-5362
URL http://www.smcworld.com
© 2007 SMC Corporation All Rights Reserved
Specifications are subject to change without prior notice
and any obligation on the part of the manufacturer.
D-DN
1st printing JU printing LO 120DN Printed in Japan.
This catalog is printed on recycled paper with concern for the global environment.
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