VXK

VXK
2 Port Solenoid Valve
with Built-in Y-strainer
For Air, Water, Oil, Steam
60 mm (VXK21)
63.5 mm (VXK22/23)
Space saving
and reduced
piping labor
Built-in strainer
enabling the removal
of contaminants
Strainer
(100 mesh)
P
P
P
[Application pending]
IP65
P Restriction of environmentally hazardous substances
RoHS compliant
Series VXK
CAT.ES70-34B
Elemen
tc
a
.
iping
gp
vin
ed without
c
a
l
p
rem
re
e
o
nb
Strainer
O-ring
Plug
M Variations
Direct Operated: Series
VXK21/22/23
Valve
Normally closed (N.C.)
Normally open (N.O.)
Normally Closed (N.C.)
AC: 100 V, 200 V, 110 V, 220 V, 240 V
230 V, 48 V
DC: 24 V, 12 V
Material
Body: C37
Seal: NBR, FKM, EPDM, PTFE
Electrical Entry
Grommet
Orifice size
Rated Voltage
VXK22
—
—
4.5 mmø
P
P
P
6 mmø
—
—
P
P
P
P
P
P
P
P
1/8, 1/4
1/4, 3/8
1/4, 3/8
2 mmø
3 mmø
8 mmø
Port size
VXK23
Normally Open (N.O.)
Model
Orifice size
Coil: Class B, Class H
VXK21
Model
Solenoid Coil
2 mmø
3 mmø
4.5 mmø
6 mmø
Port size
VXK21
VXK22
P
P
P
—
VXK23
—
—
P
P
P
P
P
P
1/8, 1/4
1/4, 3/8
1/4, 3/8
Conduit
DIN terminal
Conduit terminal
∗ Basic specifications are the same as those of the VX21/22/23 series.
Features 1
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Specifications
Series VXK21/22/23
For Air, Water, Oil, Steam
M Material
Body
Seal
C37
NBR, FKM, EPDM, PTFE
M Electrical Entry
• Grommet
• Conduit
• DIN terminal
• Conduit terminal
For Water
For Oil
100 VAC, 200 VAC, 110 VAC,
220 VAC, 240 VAC, 230 VAC,
48 VAC, 24 VDC, 12 VDC
Normally Open (N.O.)
For Steam
M Rated Voltage
Model
VXK21 VXK22 VXK23
2 mmø
3 mmø
4.5 mmø
6 mmø
1/8
1/4
1/4
Port size
1/4
3/8
3/8
Construction
Coil: Class B, Class H
Model
VXK21 VXK22 VXK23
2 mmø
3 mmø
4.5 mmø
6 mmø
8 mmø
1/8
1/4
1/4
Port size
1/4
3/8
3/8
Dimensions
M Solenoid Coil
Normally Closed (N.C.)
Orifice size
Normally closed (N.C.)
Normally open (N.O.)
Orifice size
M Valve
For Air
Single Unit
1
Common Specifications
Standard Specifications
Valve
specifications
Strainer
specifications
Valve construction
Withstand pressure
Body material
Seal material
Enclosure
Environment
Mesh
Material
AC
DC
Rated voltage
Coil
specifications
MPa
Allowable voltage fluctuation
Allowable AC (Class B, Built-in full-wave rectifier type)
AC (Class B/H)
leakage
voltage
DC (Class B only)
Coil insulation type
Direct operated poppet
5.0
C37
NBR, FKM, EPDM, PTFE
Dust-tight, Water-jet-proof type (IP65) Note)
Location without corrosive or explosive gases
100
Stainless steel
100 VAC, 200 VAC, 110 VAC, 220 VAC, 230 VAC, 240 VAC, 48 VAC
24 VDC, 12 VDC
±10% of rated voltage
10% 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
Normally Closed (N.C.)
DC Specification
Normally Open (N.O.)
DC Specification
Power consumption (W) Temperature rise (C°) Note)
4.5
45
7
45
10.5
60
Model
VXK21
VXK22
VXK23
AC Specification (Class B, Built-in full-wave rectifier type)
Apparent power (VA)∗ Temperature rise (C°) Note)
7
55
9.5
60
12
65
Model
VXK21
VXK22
VXK23
Power consumption (W) Temperature rise (C°) Note)
4.5
45
7
45
10.5
60
Model
VXK21
VXK22
VXK23
AC Specification (Class B, Built-in full-wave rectifier type)
Apparent power (VA)∗ Temperature rise (C°) Note)
7
55
9.5
60
12
65
Model
VXK21
VXK22
VXK23
∗ There is no difference in the frequency and the inrush and energized
apparent power because a rectifying circuit is used in the AC (Class B, Builtin full-wave rectifier type).
Note) Value at ambient temperature of 20°C and when the rated voltage is
applied.
∗ There is no difference in the frequency and the inrush and energized
apparent power because a rectifying circuit is used in the AC (Class B, Builtin full-wave rectifier type).
Note) Value at ambient temperature of 20°C and when the rated voltage is
applied.
AC Specification
AC Specification
Model
VXK21
VXK22
VXK23
Frequency (Hz)
50
60
50
60
50
60
Apparent power (VA)
Energized
Inrush
10
19
8
16
20
43
17
35
32
62
27
52
Temperature
rise (C°) Note)
50
45
65
60
65
60
Note) Value at ambient temperature of 20°C and when the rated voltage is
applied.
2
Model
VXK21
VXK22
VXK23
Frequency (Hz)
50
60
50
60
50
60
Apparent power (VA)
Energized
Inrush
11
22
8
18
20
46
18
38
32
64
27
54
Temperature
rise (C°) Note)
55
50
65
60
65
60
Note) Value at ambient temperature of 20°C and when the rated voltage is
applied.
Specifications
Applicable Fluid Check List
All Options (Single Unit)
0
2
VXK2
1
Oil
Note 3)
Steam
Other combinations
Body/Shading
coil material Note 5)
Coil insulation
type Note 4)
Remarks
NBR
C37/–
B
Select the built-in full-wave rectifier type for AC spec.
FKM
C37/–
B
Select the built-in full-wave rectifier type for AC spec.
NBR
C37/Cu
B
EPDM
C37/Cu
H
FKM
C37/Cu
PTFE
C37/Cu
H
C37/Cu
B
Nil
V Note 2)
Nil
E
A
D
S
B
C
EPDM
PTFE
For Water
Water
Heated water
Seal material
B
H
Note 1) The leakage amount (10–6 Pa·m3/s) of the option “V” is a value when the differential pressure is 0.1 MPa.
Note 2) Option “V” is the oil-free treatment.
Note 3) The dynamic viscosity of the fluid must not exceed 50 mm2/s.
The special construction of the armature adopted in the built-in full-wave rectifier type gives an improvement in OFF response by providing clearance on the absorbed surface when it is switched ON.
Select the DC spec. or AC spec. built-in full-wave rectifier type when the dynamic viscosity is higher than water or when the OFF response is prioritized.
Note 4) Coil insulation type Class H: AC spec. only
Note 5) There is no shading coil attached to the DC spec. or AC spec. built-in full-wave rectifier type.
Dimensions
Construction
∗ Please contact SMC when fluids other than above are used.
For Oil
Air
Medium vacuum, Non-leak, Oil-free Note 1)
Option
symbol
For Steam
Fluid and application
For Air
Option symbol
3
Series VXK21/22/23
Fluid: Air
For Air /Single Unit
(Inert gas, Non-leak, Medium vacuum)
When you operate the VXK series (AC spec.) by air, the built-in
full-wave rectifier type is chosen.
• The special construction of the armature reduces abrasion, resulting in a longer service life.
• Noise reduction
Best suited for medical equipment, low-noise environments, etc.
Model/Valve Specifications
N.O.
N.C.
Passage symbol
Passage symbol
2
2
1
1
Normally Closed (N.C.)
Orifice
Port
size
size (mmø)
2
3
4.5
2
Model
VXK2110-01
1/8
VXK2120-01
(6A)
VXK2130-01
VXK2110-02
VXK2120-02
3 VXK2220-02
VXK2320-02
VXK2130-02
1/4
4.5 VXK2230-02
(8A)
VXK2330-02
VXK2240-02
6
VXK2340-02
VXK2250-02
8
VXK2350-02
VXK2220-03
3
VXK2320-03
VXK2230-03
4.5
VXK2330-03
3/8
(10A)
VXK2240-03
6
VXK2340-03
VXK2250-03
8
VXK2350-03
Max.
operating
pressure
differential
(MPa)
1.5
0.6
0.2
1.5
0.6
1.5
3.0
0.2
0.35
0.9
0.15
0.35
0.08
0.2
1.5
3.0
0.35
0.9
0.15
0.35
0.08
0.2
Normally Open (N.O.)
Flow characteristics
C[dm3/(s·bar)]
0.59
1.2
2.3
0.59
b
0.48
0.45
0.46
0.48
Cv
0.18
0.33
0.61
0.18
1.2
0.45
0.33
2.3
0.46
0.61
4.0
0.30
1.10
4.9
0.29
1.20
1.2
0.45
0.33
2.3
0.46
0.61
4.0
0.30
1.10
4.9
0.29
1.20
Max.
Note)
system Weight
pressure
(g)
(MPa)
480
3.0
1.0
3.0
1.0
640
790
480
640
790
640
790
640
790
640
790
640
790
640
790
640
790
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN
terminal type, 60 g for conduit terminal type respectively.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
• If you intend to use any of the solenoid valves at the rated max. operating pressure for the AC spec. with shading coil, please contact SMC
beforehand.
Note) Dew point temperature: –10°C or less
Model
2
1/8
3
(6A)
4.5
2
VXK2112-01
VXK2122-01
VXK2132-01
VXK2112-02
VXK2122-02
3 VXK2222-02
VXK2322-02
1/4
VXK2132-02
(8A)
4.5 VXK2232-02
VXK2332-02
VXK2242-02
6
VXK2342-02
VXK2222-03
3
VXK2322-03
VXK2232-03
3/8
4.5
(10A)
VXK2332-03
VXK2242-03
6
VXK2342-03
Max.
operating
pressure
differential
(MPa)
1.5
0.7
0.3
1.5
0.7
1.0
1.6
0.3
0.45
0.8
0.25
0.45
1.0
1.6
0.45
0.8
0.25
0.45
Flow characteristics
C[dm3/(s·bar)]
0.59
1.2
2.3
0.59
b
0.48
0.45
0.46
0.48
Cv
0.18
0.33
0.61
0.18
1.2
0.45
0.33
2.3
0.46
0.61
4.0
0.30
1.10
1.2
0.45
0.33
2.3
0.46
0.61
4.0
0.30
1.10
500
3.0
670
830
500
670
830
670
830
670
830
670
830
670
830
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN
terminal type, 60 g for conduit terminal type respectively.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Valve Leakage
Internal Leakage
Seal material
NBR, FKM
Ambient temperature
(°C)
–20 to 60
Air
1 cm3/min or less
Non-leak,
Medium vacuum Note)
10–6 Pa·m3/sec or less
External Leakage
Leakage rate
Seal material
NBR, FKM
Air
1 cm3/min or less
Non-leak,
Medium vacuum Note)
10–6 Pa·m3/sec or less
Note) Value for option “V” (Non-leak, Medium vacuum)
4
Max.
Note)
system Weight
pressure
(g)
(MPa)
Leakage rate
Ambient and Fluid Temperature
Fluid temperature (°C)
Solenoid valve option symbol
V
Nil
–10 Note) to 60
–10 Note) to 60
Orifice
Port
size
size (mmø)
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Series VXK21/22/23
For Air/Single Unit
VXK 21 2 0
VXK 21 2 0
1 G R1
5 G 1
Model
B
∗ Packed in the same container
as the main body.
∗ Refer to the Table (4) when a
bracket is ordered separately.
Valve/Body configuration
0
2
N.C./Single unit
N.O./Single unit
Port size
Refer to the Table (1)
shown below for availability.
Solenoid valve option
Refer to the Table (2)
shown below for availability.
Z
Nil
—
Oil-free
Rc
NPTF
G
NPT
T
F
N
Select nil because the
solenoid valve option “V”
is the oil-free treatment.
Electrical entry
G - Grommet
GS- With grommet surge
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
voltage suppressor
Rated voltage
1
2
3
4
5
Built-in
full-wave
rectifier type
Thread type
Suffix
Nil
None
With bracket
Nil
Refer to the Table (1)
shown below for availability.
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
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
∗ Refer to the Table (3) shown below for availability.
Refer to page 14 for ordering a coil only.
Connector
surge voltage
suppressor and light
DO - For DIN terminal
(without connector,
gasket is included.)
terminal, surge
voltage
suppressor
and light
For Air
Bracket
Orifice size
For Water
Refer to the Table (1)
shown below for availability.
For Oil
DC
01
01
For Steam
AC
Specifications
How to Order (Single Unit)
∗ DIN type is available with class B only.
∗ Refer to the Table (3) for the available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Option “S”, “Z” are not available because a surge voltage suppressor is integrated
into the AC/Class B, built-in full-wave rectifier type as a standard.
Table (1) Model/Orifice Size/Port Size
Normally Closed (N.C.)
Table (3) Rated Voltage/Electrical Option
1
2
3
4
VXK21 VXK22 VXK23 (2 mmø) (3 mmø) (4.5 mmø) (6 mmø)
01 (1/8)
Port
02 (1/4)
symbol
02 (1/4) 02 (1/4)
(Port size)
03 (3/8) 03 (3/8)
(8 mmø)
Orifice symbol (Diameter)
Solenoid valve (Port size)
Port
symbol
(Port size)
VXK21
VXK22
VXK23
1
2
3
4
(2 mmø)
(3 mmø)
(4.5 mmø)
(6 mmø)
DC
01 (1/8)
02 (1/4)
02 (1/4)
03 (3/8)
Seal
material
Nil
NBR
V
FKM
Body
material
C37
Class B
S
With surge
Voltage
voltage
Voltage
symbol
suppressor
1
100 V
200 V
2
110 V
3
220 V
4
240 V
7
48 V
8
230 V
J
24 V
5
12 V
6
L
Z
With
light
With light and
surge voltage
suppressor
∗ Option “S”, “Z” are not available because a surge voltage
suppressor is integrated into the AC/Class B, built-in fullwave rectifier type as a standard.
02 (1/4)
03 (3/8)
Table (2) Solenoid Valve Option
Option
symbol
AC/
DC
AC
Normally Open (N.O.)
Model
Rated voltage
5
Model
Table (4) Bracket Part No.
Coil
insulation type
B
Remarks
Model
Part no.
VXK21
VXK22
VXK23
VXK021N-5A
Non-leak (10–6 Pa·m3/sec), Oil-free,
Medium vacuum (0.1 Pa.abs)
∗ When using with vacuum, consider the max. differential pressure. (0.1 MPa or more is recommended.)
Fluid: Air
When you operate the VX series (AC spec.) by air, the built-in full-wave rectifier type is chosen.
• The special construction of the armature reduces abrasion, resulting in a longer service life.
• Noise reduction
Best suited for medical equipment, low-noise environments, etc.
Construction
Orifice symbol (Diameter)
Dimensions
Solenoid valve (Port size)
Dimensions → page 13 (Single unit)
5
Series VXK21/22/23
For Water /Single Unit
Model/Valve Specifications
N.C.
N.O.
Passage symbol
Passage symbol
2
2
1
1
Normally Closed (N.C.)
Port
size
Orifice
size
(mmø)
Normally Open (N.O.)
Max. operating pressure
differential (MPa)
Model
AC
Max.
Flow
Note)
DC
characteristics system Weight
pressure
AC (Built-in
(g)
full-wave
(MPa)
-6 2
rectifier type)
VXK2110-01
VXK2120-01
VXK2130-01
VXK2110-02
VXK2120-02
3 VXK2220-02
VXK2320-02
VXK2130-02
1/4
4.5 VXK2230-02
(8A)
VXK2330-02
VXK2240-02
6
VXK2340-02
VXK2250-02
8
VXK2350-02
VXK2220-03
3
VXK2320-03
VXK2230-03
4.5
VXK2330-03
3/8
VXK2240-03
(10A)
6
VXK2340-03
VXK2250-03
8
VXK2350-03
1/8
(6A)
2
3
4.5
2
2.0
0.9
0.4
2.0
0.9
1.7
2.5
0.4
0.6
0.85
0.35
0.55
0.13
0.17
1.7
2.5
0.6
0.85
0.35
0.55
0.13
0.17
1.5
0.5
0.2
1.5
0.5
1.5
3.0
0.2
0.35
0.9
0.15
0.3
0.08
0.2
1.5
3.0
0.35
0.9
0.15
0.3
0.08
0.2
Av x 10 m
4.1
7.9
15.0
4.1
7.9
Cv converted
0.17
0.33
0.61
0.17
0.33
15.0
0.61
23.0
0.95
26.0
1.10
7.9
0.33
15.0
0.61
23.0
0.95
26.0
1.10
480
3.0
1.0
3.0
1.0
640
790
480
640
790
640
790
640
790
640
790
640
790
640
790
640
790
Port
size
1/8
(6A)
Orifice
size
(mmø)
2
3
4.5
2
3
1/4
(8A)
4.5
6
3
3/8
(10A)
4.5
6
Model
Max.
operating
pressure
differential
(MPa)
VXK2112-01
VXK2122-01
VXK2132-01
VXK2112-02
VXK2122-02
VXK2222-02
VXK2322-02
VXK2132-02
VXK2232-02
VXK2332-02
VXK2242-02
VXK2342-02
VXK2222-03
VXK2322-03
VXK2232-03
VXK2332-03
VXK2242-03
VXK2342-03
0.9
0.45
0.2
0.9
0.45
0.8
1.2
0.2
0.3
0.6
0.15
0.35
0.8
1.2
0.3
0.6
0.15
0.35
Max.
Note)
system Weight
pressure (g)
Av x 10-6 m2 Cv converted (MPa)
Flow
characteristics
4.1
7.9
15.0
4.1
0.17
0.33
0.61
0.17
7.9
0.33
15.0
0.61
23.0
0.95
7.9
0.33
15.0
0.61
23.0
0.95
500
3.0
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN
terminal type, and 60 g for conduit terminal type respectively.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN
terminal type, and 60 g for conduit terminal type respectively.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Ambient and Fluid Temperature
Valve Leakage
Internal Leakage
Fluid temperature (°C)
Solenoid valve option symbol
E
Nil
1 to 60
1 to 99
Note) With no freezing
6
Ambient temperature
(°C)
–20 to 60
670
830
500
670
830
670
830
670
830
670
830
670
830
Seal material
NBR, EPDM
Leakage rate (Water)
0.1 cm3/min or less
External Leakage
Seal material
NBR, EPDM
Leakage rate (Water)
0.1 cm3/min or less
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Series VXK21/22/23
For Water/Single Unit
VXK 21 2 0
VXK 21 2 0
1 G R1
5 G 1
Valve/Body configuration
Full-wave rectifier
N.C./Single unit
N.O./Single unit
Port size
Nil
None
R
Built-in full-wave
rectifier type
(Class B only)
Refer to the Table (1)
shown below for availability.
Solenoid valve option
Refer to the Table (2) shown below for availability.
Thread type
Suffix
Nil
—
Oil-free
Nil
Z
Rc
NPTF
G
NPT
T
F
N
Oil-free, AC/Class B: Built-in full-wave rectifier
type only. Select the built-in full-wave rectifier
type.
Electrical entry
G - Grommet
GS- With grommet surge
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
T - With conduit terminal
TS - With conduit terminal and
and light
TZ - With conduit
terminal, surge
voltage
suppressor
and light
Refer to page 14 for ordering a coil only.
voltage suppressor
DL - DIN terminal with light
DZ - DIN terminal with
Connector
surge voltage
suppressor and light
DO - For DIN terminal
(without connector,
gasket is included.)
∗ DIN type is available with class B only.
∗ Refer to the Table (3) for the available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Option “S”, “Z” are not available because a surge voltage suppressor is integrated
into the AC/Class B, built-in full-wave rectifier type as a standard.
Table (1) Model/Orifice Size/Port Size
Normally Closed (N.C.)
Table (2) Solenoid Valve Option
Orifice symbol (Diameter)
1
2
3
4
5
VXK21 VXK22 VXK23 (2 mmø) (3 mmø) (4.5 mmø) (6 mmø) (8 mmø)
01 (1/8)
Port
02 (1/4)
symbol
02 (1/4) 02 (1/4)
(Port size)
03 (3/8) 03 (3/8)
Model
D - DIN terminal
DS - DIN terminal with surge
surge voltage suppressor
TL - With conduit terminal
∗ Refer to the Table (3) shown below for availability.
Solenoid valve (Port size)
C- Conduit
voltage suppressor
Rated voltage
1
2
3
4
5
∗ Packed in the same container as the main body.
∗ Refer to the Table (4) when
a bracket is ordered separately.
For Oil
0
2
None
With bracket
B
For Water
Nil
For Air
Bracket
Model
Orifice size
Refer to the Table (1)
Refer to the Table (1)
shown below for availability.
shown below for availability.
For Steam
DC
01
01
Option
symbol
Nil
E
Seal
Body/Shading
Coil
material coil material insulation type
NBR
EPDM
C37/Cu
B
H
Remarks
—
Heated water (AC only)
Construction
AC
Specifications
How to Order (Single Unit)
Orifice symbol (Diameter)
Solenoid valve (Port size)
Model
Port
symbol
(Port size)
VXK21
VXK22
VXK23
02 (1/4)
03 (3/8)
02 (1/4)
03 (3/8)
1
2
(2 mmø)
3
4
(3 mmø) (4.5 mmø) (6 mmø)
01 (1/8)
02 (1/4)
Table (3) Rated Voltage/Electrical Option
Rated voltage
AC/
DC
AC
DC
Dimensions
Normally Open (N.O.)
Table (4) Bracket Part No.
Class B
S
With surge
Voltage
Voltage voltage
symbol
suppressor
1
100 V
2
200 V
3
110 V
4
220 V
7
240 V
8
48 V
J
230 V
5
24 V
6
12 V
L
With
light
Class H
Z
S
With light/ With surge
surge voltage voltage
suppressor suppressor
L
Z
With
light
With light/
surge voltage
suppressor
Model
Part no.
VXK21
VXK22
VXK23
VXK021N-5A
DC spec. is not available.
∗ Option “S”, “Z” are not available because a surge voltage suppressor is integrated into the
AC/Class B, built-in full-wave rectifier type as a standard.
Dimensions → page 13 (Single unit)
7
Series VXK21/22/23
Fluid: Oil
The dynamic viscosity of the fluid must not exceed 50
mm2/s.
The special construction of the armature adopted in the
built-in full-wave rectifier type gives an improvement in OFF
response by providing clearance on the absorbed surface
when it is switched ON.
Select the DC spec. or AC spec. built-in full-wave rectifier
type when the dynamic viscosity is higher than water or
when the OFF response is prioritized.
For Oil /Single Unit
Model/Valve Specifications
N.C.
N.O.
Passage symbol
Passage symbol
2
2
1
1
Normally Closed (N.C.)
Orifice
Port size
size (mmø)
DC
Model
VXK2110-01
VXK2120-01
VXK2130-01
VXK2110-02
VXK2120-02
3 VXK2220-02
VXK2320-02
VXK2130-02
1/4
(8A) 4.5 VXK2230-02
VXK2330-02
VXK2240-02
6
VXK2340-02
VXK2250-02
8
VXK2350-02
VXK2220-03
3
VXK2320-03
VXK2230-03
4.5
VXK2330-03
3/8
(10A)
VXK2240-03
6
VXK2340-03
VXK2250-03
8
VXK2350-03
1/8
(6A)
Normally Open (N.O.)
Max. operating pressure
differential (MPa)
2
3
4.5
2
AC
AC (Built-in
full-wave
rectifier type)
1.5
0.5
0.2
1.5
0.5
1.2
1.7
0.2
0.35
0.55
0.2
0.35
0.1
0.14
1.2
1.7
0.35
0.55
0.2
0.35
0.1
0.14
1.5
0.5
0.15
1.5
0.5
1.2
2.0
0.15
0.3
0.85
0.1
0.3
0.08
0.2
1.2
2.0
0.3
0.85
0.1
0.3
0.08
0.2
Max. Note)
Flow
characteristics system Weight
pressure (g)
Av x 10-6 m2 Cv converted (MPa)
4.1 0.17
7.9 0.33
15.0 0.61
480
4.1 0.17
7.9
0.33
15.0
0.61
23.0
0.95
26.0
1.10
7.9
0.33
15.0
0.61
23.0
0.95
26.0
1.10
3.0
1.0
3.0
1.0
640
790
480
640
790
640
790
640
790
640
790
640
790
640
790
640
790
Port
size
1/8
(6A)
Orifice
size
(mmø)
2
3
4.5
2
3
1/4
(8A)
4.5
6
3
3/8
(10A)
4.5
6
Model
VXK2112-01
VXK2122-01
VXK2132-01
VXK2112-02
VXK2122-02
VXK2222-02
VXK2322-02
VXK2132-02
VXK2232-02
VXK2332-02
VXK2242-02
VXK2342-02
VXK2222-03
VXK2322-03
VXK2232-03
VXK2332-03
VXK2242-03
VXK2342-03
Max.
operating
pressure
differential
(MPa)
Max.
Note)
system Weight
pressure (g)
AC, DC Av x 10-6 m2 Cv converted (MPa)
0.8
0.45
0.2
0.8
0.45
0.7
1.0
0.2
0.3
0.6
0.15
0.35
0.7
1.0
0.3
0.6
0.15
0.35
Flow
characteristics
4.1
7.9
15
4.1
0.17
0.33
0.61
0.17
7.9
0.33
15
0.61
23.0
0.95
7.9
0.33
15
0.61
23.0
0.95
500
3.0
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN
terminal type, and 60 g for conduit terminal type respectively.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN
terminal type, and 60 g for conduit terminal type respectively.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Ambient and Fluid Temperature
Valve Leakage
Internal Leakage
Fluid temperature (°C)
Solenoid valve option symbol
A
D
–5 Note) to 60
–5 Note) to 120
Note) Dynamic viscosity: 50 mm2/s or less
8
Ambient temperature
(°C)
–20 to 60
670
830
500
670
830
670
830
670
830
670
830
670
830
Seal material
FKM
Leakage rate (Oil)
0.1 cm3/min or less
External Leakage
Seal material
FKM
Leakage rate (Oil)
0.1 cm3/min or less
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Series VXK21/22/23
For Oil/Single Unit
VXK 21 2 0 A
VXK 21 2 0 A
1 G R1
5 G 1
Model
Bracket
Nil
N.C./Single unit
N.O./Single unit
Port size
Thread type
Suffix
Nil
T
F
N
—
Oil-free
Oil-free, AC/Class B: Built-in fullwave rectifier type only. Select the
built-in full-wave rectifier type.
Electrical entry
Rc
NPTF
G
NPT
G - Grommet
GS- With grommet surge
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
voltage suppressor
T - With conduit terminal
TS - With conduit terminal and
Rated voltage
1
2
3
4
5
rectifier type
(Class B only)
D - DIN terminal
DS - DIN terminal with surge
surge voltage suppressor
12 VDC
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
voltage suppressor
TL - With conduit terminal
DL - DIN terminal with light Connector
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 the Table (3) shown below for availability.
Refer to page 14 for ordering a coil only.
∗ DIN type is available with class B only.
∗ Refer to the Table (3) for the available combinations between each electrical option
(S, L, Z) and rated voltage.
∗ Option “S”, “Z” are not available because a surge voltage suppressor is integrated
into the AC/Class B, built-in full-wave rectifier type as a standard.
Table (1) Model/Orifice Size/Port Size
Normally Closed (N.C.)
Table (2) Solenoid Valve Option
Solenoid valve (Port size)
Model
Port
symbol
(Port size)
Orifice symbol (Diameter)
VXK21 VXK22 VXK23
For Oil
Nil
Z
R
Refer to the Table (1)
shown below for availability.
Solenoid valve option
Refer to the Table (2)
shown below for availability.
∗ Packed in the same container as the main body.
∗ Refer to the Table (4) when
None
a bracket is ordered sepaBuilt-in full-wave
rately.
Full-wave rectifier
Valve/Body configuration
0
2
None
With bracket
For Air
Nil
B
For Water
Refer to the Table (1)
Orifice size
shown below for availability.
Refer to the Table (1) shown
below for availability.
For Steam
DC
01
01
1
2
(2 mmø)
3
4
(3 mmø) (4.5 mmø) (6 mmø)
5
(8 mmø)
01 (1/8)
02 (1/4)
Option
symbol
Seal
material
Body/Shading
coil material
Coil
insulation type
A
D
FKM
C37/Cu
B
H
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.
02 (1/4) 02 (1/4)
03 (3/8) 03 (3/8)
Construction
AC
Specifications
How to Order (Single Unit)
Normally Open (N.O.)
Model
Port
symbol
(Port size)
VXK21
VXK22
VXK23
02 (1/4)
03 (3/8)
02 (1/4)
03 (3/8)
1
2
(2 mmø)
3
4
(3 mmø) (4.5 mmø) (6 mmø)
01 (1/8)
02 (1/4)
Table (3) Rated Voltage/Electrical Option
Rated voltage
AC/
DC
AC
DC
Dimensions
Orifice symbol (Diameter)
Solenoid valve (Port size)
Table (4) Bracket Part No.
Class B
S
With surge
Voltage
Voltage voltage
symbol
suppressor
100 V
1
200 V
2
110 V
3
220 V
4
240 V
7
48 V
8
230 V
J
24 V
5
12 V
6
L
With
light
Class H
Z
S
With light/ With surge
surge voltage voltage
suppressor suppressor
L
Z
With
light
With light/
surge voltage
suppressor
Model
Part no.
VXK21
VXK22
VXK23
VXK021N-5A
DC spec. is not available.
∗ Option “S”, “Z” are not available because a surge voltage suppressor is integrated into the
AC/Class B, built-in full-wave rectifier type as a standard.
Dimensions → page 13 (Single unit)
9
Series VXK21/22/23
For Steam /Single Unit
Model/Valve Specifications
N.C.
N.O.
Passage symbol
Passage symbol
2
2
1
1
Normally Closed (N.C.)
Orifice
Port size
size (mmø)
1/8
(6A)
1/4
(8A)
3/8
(10A)
Model
VXK2110-01
VXK2120-01
VXK2130-01
VXK2110-02
VXK2120-02
VXK2130-02
4.5 VXK2230-02
VXK2330-02
VXK2240-02
6
VXK2340-02
VXK2250-02
8
VXK2350-02
3 VXK2220-03
VXK2230-03
4.5
VXK2330-03
VXK2240-03
6
VXK2340-03
VXK2250-03
8
VXK2350-03
2
3
4.5
2
3
Max. operating
pressure
differential (MPa)
AC
1.0
1.0
0.45
1.0
1.0
0.45
0.75
1.0
0.4
0.5
0.15
0.2
1.0
0.75
1.0
0.4
0.5
0.15
0.2
Normally Open (N.O.)
Max.
Flow
Note)
system Weight
characteristics pressure
(g)
Av x 10-6 m2 Cv converted (MPa)
4.1
0.17
7.9
0.33
15.0
0.61
480
4.1
0.17
7.9
0.33
1.0
15.0
0.61
23.0
0.95
26.0
1.10
7.9
0.33
15.0
0.61
23.0
0.95
26.0
1.10
0.5
640
790
640
790
640
790
640
1.0
0.5
790
640
790
640
790
Port
size
Orifice
size
(mmø)
1/8
(6A)
2
3
4.5
2
1/4
(8A)
3/8
(10A)
Model
VXK2112-01
VXK2122-01
VXK2132-01
VXK2112-02
VXK2122-02
3
VXK2222-02
VXK2132-02
4.5 VXK2232-02
VXK2332-02
VXK2242-02
6
VXK2342-02
3 VXK2222-03
VXK2232-03
4.5
VXK2332-03
VXK2242-03
6
VXK2342-03
Max. operating
pressure
differential (MPa)
AC
1.0
0.7
0.3
1.0
0.7
1.0
0.3
0.45
0.8
0.25
0.45
1.0
0.45
0.8
0.25
0.45
Max.
Flow
Note)
system Weight
characteristics
pressure (g)
Av x 10-6 m2 Cv converted (MPa)
4.1
7.9
15
4.1
0.17
0.33
0.61
0.17
7.9
0.33
15
500
0.61
1.0
23.0
0.95
7.9
0.33
15
0.61
23.0
0.95
Valve Leakage
Internal Leakage
Max. fluid temperature (°C)
Solenoid valve option symbol
S
183
10
Ambient temperature
(°C)
–20 to 60
670
830
670
830
Note) Weight of grommet type. Add 60 g for conduit terminal type.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Note) Weight of grommet type. Add 60 g for conduit terminal type.
• Refer to “Glossary of Terms” on page 23 for details on the max. operating pressure differential and the max. system pressure.
Ambient and Fluid Temperature
670
500
670
830
670
830
Seal material
PTFE
Leakage rate (Air)
300 cm3/min or less
External Leakage
Seal material
PTFE
Leakage rate (Air)
1 cm3/min or less
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Series VXK21/22/23
For Steam/Single Unit
VXK 21 2 0 S
AC
01
Specifications
How to Order (Single Unit)
1 G1
Model
Refer to the Table (1)
shown below for availability.
∗ Packed in the same container as the main body.
∗ Refer to the Table (4)
when a bracket is ordered
separately.
Valve/Body configuration
0
2
None
With bracket
B
N.C./Single unit
N.O./Single unit
Solenoid valve option
Refer to the Table (2)
shown below for availability.
Suffix
—
Oil-free
Z
Electrical entry
C- Conduit
For Oil
Nil
Port size
Refer to the Table (1) shown below for availability.
G - Grommet
GS- With grommet surge
Thread type
T
F
N
Rc
NPTF
G
NPT
voltage suppressor
For Steam
Nil
T - With conduit terminal
TS - With conduit terminal and
surge voltage suppressor
TL - With conduit terminal
Rated voltage
1
2
3
4
For Water
Nil
For Air
Bracket
Orifice size
Refer to the Table (1)
shown below for availability.
100 VAC 50/60 Hz
200 VAC 50/60 Hz
110 VAC 50/60 Hz
220 VAC 50/60 Hz
7
8
J
and light
240 VAC 50/60 Hz
48 VAC 50/60 Hz
230 VAC 50/60 Hz
TZ - With conduit terminal,
surge voltage
suppressor
and light
∗ Refer to the Table (3) shown below for availability.
Table (3) Rated Voltage/Electrical Option
Orifice symbol (Diameter)
Solenoid valve (Port size)
1
2
3
4
5
VXK21 VXK22 VXK23 (2 mmø) (3 mmø) (4.5 mmø) (6 mmø) (8 mmø)
01 (1/8)
Port
02 (1/4)
symbol
02 (1/4) 02 (1/4)
(Port size)
03 (3/8) 03 (3/8)
(VXK22)
Model
Orifice symbol (Diameter)
Solenoid valve (Port size)
Port
symbol
(Port size)
VXK21
VXK22
AC/
DC
AC
Normally Open (N.O.)
Model
Rated voltage
VXK23
1
2
(2 mmø)
3
4
(3 mmø) (4.5 mmø) (6 mmø)
DC
01 (1/8)
02 (1/4)
02 (1/4)
03 (3/8)
02 (1/4)
03 (3/8)
Seal material
S
PTFE
Solenoid coil: AC/Class H only
Body/Shading
coil material
C37/Cu
L
Z
With surge
With light/
Voltage
With surge
voltage
Voltage voltage
symbol
light
suppressor
suppressor
100 V
1
200 V
2
110 V
3
220 V
4
240 V
7
48 V
8
230 V
J
24 V
5
DC spec. is not available.
12 V
6
(VXK22)
(VXK22)
Table (2) Solenoid Valve Option
Option
symbol
Class H
S
Table (4) Bracket Part No.
Coil
insulation type
H
Model
Part no.
VXK21
VXK22
VXK23
VXK021N-5A
Dimensions → page 13 (Single unit)
11
Dimensions
Table (1) Model/Orifice Size/Port Size
Normally Closed (N.C.)
Construction
∗ Refer to the Table (3) for the available
combinations between each electrical
option (S, L, Z) and rated voltage.
Refer to page 14 for ordering a coil only.
Series VXK21/22/23
For Air, Water, Oil, Steam
Construction: Single Unit
Normally closed (N.C.)
Body material: C37
Normally open (N.O.)
Body material: C37
y
u
w
w
r
t
e
u
i
i
y
t
r
e
q
q
o
o
!0
!0
!1
!1
Component Parts
No.
Description
Component Parts
Material
No.
C37
1
Body
Description
1
Body
2
Tube assembly Note 2)
Stainless steel, Cu
2
Tube assembly Note 2)
3
Armature assembly
Stainless steel, PPS, NBR (FKM, EPDM, PTFE)
3
Return spring
4
Return spring
Stainless steel
4
Solenoid coil
5
Solenoid coil
—
5
O-ring
6
O-ring
NBR (FKM, EPDM, PTFE)
6
E stop ring
7
Clip
SK
7
Push rod assembly
8
Nut
9
Strainer
10
Plug
11
O-ring
C37
8
Nut
Stainless steel
9
Strainer
C37
10
Plug
NBR (FKM, EPDM, PTFE)
11
O-ring
Note 1) The seal materials shown in ( ) are available depending on the option
selected.
Note 2) “Cu” is not available with the DC spec. and AC spec. built-in full-wave rectifier
type.
12
Material
C37
Stainless steel, Cu
Stainless steel
—
NBR (FKM, EPDM, PTFE)
Stainless steel
Stainless steel, PPS, NBR (FKM, EPDM, PTFE)
C37
Stainless steel
C37
NBR (FKM, EPDM, PTFE)
Note 1) The seal materials shown in ( ) are available depending on the option
selected.
Note 2) “Cu” is not available with the DC spec. and AC spec. built-in full-wave rectifier
type.
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Series VXK21/22/23
For Air, Water, Oil, Steam
Specifications
Dimensions
Normally closed (N.C.): VXK21l0/VXK22l0/VXK23l0
Normally open (N.O.): VXK21l2/VXK22l2/VXK23l2
Conduit: C
For Air
23
23
Grommet: G
85
73
D
F
26
≈ 280
I
D
2xH
Port size
34
42
B
(E)
E
J
2xH
Port size
2 x ø5.3
Mounting hole
Width across
flats 27
14
2 x ø5.5
Mounting hole
Width across
flats 27
34
42
For Steam
14
A
14
A
2 x ø5.3
Mounting hole
Width
across
flats G
(C)
C
(C)
C
14 22
16
J
(E)
E
1.6
Width across
flats G
For Water
≈ 300
I
B
Conduit terminal: T
23
23
DIN terminal: D
For Oil
25.5
F
G1/2
Cable ø6 to ø12
I
F
K
34
K
14
2xH
Port size
A
2xH
Port size
G1/2
2 x ø5.3
Mounting
hole
Width across
flats 27
34
42
(L)
J
(C)
C
14
(E)
E
14
A
2 x ø5.3
Mounting hole
Width
across
flats G
25
(E)
E
Width
across
flats G
J
31.5
(44)
(E)
E
32
D
Construction
I
14
Width across
flats 27
34
42
B
B
(mm)
Model
Normally
closed
(N.C.)
Normally
open
(N.O.)
Orifice size
Port size
H
VXK21l0 VXK21l2 ø2, ø3, ø4.5 1/8, 1/4
VXK22l0 VXK22l2 ø3, ø4.5, ø6, ø8 Note 1) 1/4, 3/8
VXK23l0 VXK23l2 ø3, ø4.5, ø6, ø8 Note 1) 1/4, 3/8
A
B
C
(C)
D
E
Note 2)
(E)
F
G
Note 2)
18 60
(112) (119) 30 60 67 19.5 27
22 63.5 (121.5) (128.5) 35 69 76.5 22.5 32
22 63.5 (127.5) (135) 40 75.5 83.5 25
36
(mm)
Model
Normally
closed
(N.C.)
Normally
open
(N.O.)
Orifice size
Port size
H
Grommet
Electrical entry Note 3)
Conduit
DIN terminal
Conduit terminal
I
J
I
J
I
J
40 44.5 58.5 44
VXK21l0 VXK21l2 ø2, ø3, ø4.5 1/8, 1/4 19.5 52
43 53.5 61.5 53
VXK22l0 VXK22l2 ø3, ø4.5, ø6, ø8 Note 1) 1/4, 3/8 22.5 61
VXK23l0 VXK23l2 ø3, ø4.5, ø6, ø8 Note 1) 1/4, 3/8 25.5 67.5 46 60 64 59.5
K
I
J
K
L
Built-in full-wave rectifier type Electrical entry Note 3)
Grommet Conduit
DIN terminal
Conduit terminal
I
J
I
J
I
J
K
I
J
K
L
46.5 (92) 44.5 (61) (129) 30 48 48.5 43 65.5 44 53.5 (100.5) 43 (69.5) (127)
49.5 (95) 53.5 (64) (138) 33 57 51.5 52 68.5 53 56.5 (103.5) 52 (72.5) (136.5)
52 (98) 60 (66.5) (143.5) 36 63.5 54 58.5 71 59.5 59
(106) 58.5 (75) (142.5)
Note 1) An orifice size of ø8 is only available with the N.C. spec.
Note 2) (C)(E): N.O. spec. dimensions
Note 3) Add 1.5 mm to “J” and “L” dimensions for the N.O. spec.
13
Dimensions
F
Series VXK21/22/23
For Air, Water, Oil, Steam
Replacement Parts
P Solenoid
Coil Assembly Part No.
AC/Class B (Built-in full-wave rectifier)
VX02 1 N 1 G R
VX02 1 N 1 G
1
2
3
Nil
2
VXK21ll
VXK22ll
VXK23ll
Rated voltage Note)
1
2
3
4
5
6
7
8
J
N.C.
N.O.
1
2
3
VXK21ll
VXK22ll
VXK23ll
Coil insulation type Note)
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
Nil
Class B
Class H
H∗
Valve
Model
Valve
Model
∗ DIN terminal and DC
spec. are not available.
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
Electrical entry
Electrical entry
G - Grommet
GS- With grommet surge
C- Conduit
G- Grommet
C- Conduit
T - With conduit terminal
TL - With conduit terminal
D - DIN terminal
DL - DIN terminal with light
DO - For DIN terminal
Connector
and light
voltage suppressor
(without connector,
gasket is included.)
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
DL - DIN terminal with light
DZ - DIN terminal with
terminal and
light
TZ - With conduit
terminal, surge
voltage
suppressor
and light
Connector
surge voltage
suppressor and light
DO - For DIN terminal
(without connector)
∗ DIN type is available with class B only.
∗ Refer to the Table (1) for the available combinations between each electrical
option and rated voltage.
∗ Surge voltage suppressor is integrated into the AC/Class B, built-in full-wave
rectifier type as a standard.
Table (1) Rated Voltage/Electrical Option
∗ Refer to the Table (1) for the available combinations between each electrical
option (S, L, Z) and rated voltage.
Without electrical option
With electrical option
Rated voltage
AC/
DC
Connector Part No.
GDM2A
GDM2A
AC
Electrical option
S With surge voltage suppressor
L With light
Z With light/surge voltage suppressor
∗ Refer to the Table (1) for the available
combinations between each electrical
option (S, L, Z) and rated voltage.
Rated voltage
1
2
5
6
15
P Gasket
100 VAC, 110 VAC
200 VAC, 220 VAC, 230 VAC, 240 VAC
24 VDC
12 VDC
48 VAC
Part No. for DIN Connector
VCW20-1-29-1
14
N.C.
N.O.
Note) Refer to the Table (1) for the
available combinations.
Note) Refer to the Table (1) for the
available combinations.
P DIN
Nil
2
Rated voltage Note)
DC
Class B
S
L
With surge
With
light
Voltage
Voltage voltage
suppressor
symbol
100 V
1
200 V
2
110 V
3
220 V
4
240 V
7
48 V
8
230 V
J
24 V
5
12 V
6
Class H
Z
S
With light/ With surge
surge voltage voltage
suppressor suppressor
L
Z
With
light
With light/
surge voltage
suppressor
DC spec. is not available.
∗ Option “S”, “Z” are not available because a surge voltage suppressor is integrated
into the AC/Class B, built-in full-wave rectifier type as a standard.
∗ Replacement of solenoid coil
• Cannot be changed between DC and AC.
• Cannot be changed between DC and AC (built-in full-wave rectifier type).
• Can be changed from DC to DC.
• Can be changed from AC to AC.
Direct Operated 2 Port Solenoid Valve
with Built-in Y-strainer
Series VXK21/22/23
P Name
Specifications
For Air, Water, Oil, Steam
Plate Part No.
AZ-T-
Valve model
Clip
Enter by referring to
“How to Order”
(Single Unit).
P Clip
Part No. (For N.C.)
Name plate
For Air
For VX21: VX021N-10
For VX22: VX022N-10
P Clip
For Water
For VX23: VX023N-10
Part No. (For N.O.)
For VX21: ETW-7
For Oil
For VX22: ETW-8
For VX23: ETW-9
O-ring
∗ Part numbers are for a set of ten
O-rings.
Strainer
O-ring
Construction
Plug assembly
(Plug + O-ring)
VXK021N-4-1
VXK021N-3CA (NBR)
VXK021N-3CA-F (FKM)
VXK021N-3CA-E (EPDM)
VXK021N-3CA-P (PTFE)
VXK-OR (NBR)
VXK-OR-F (FKM)
VXK-OR-E (EPDM)
VXK-OR-P (PTFE)
Plug
Dimensions
Part No.
Strainer
For Steam
P Strainer
15
Solenoid Valve Flow Characteristics
(How to indicate flow characteristics)
1. Indication of flow characteristics
The flow characteristics in equipment such as a solenoid valve, etc. are indicated in their specifications as shown in the Table (1).
Table (1) Indication of flow characteristics
Corresponding
equipment
Indication by
Other
international standard indications
C, b
—
ISO 6358: 1989
JIS B 8390: 2000
—
S
JIS B 8390: 2000
Equipment: JIS B 8373, 8374, 8375, 8379, 8381
Pneumatic
equipment
Process fluid
control
equipment
Conformed standard
Cv
ANSI/(NFPA)T3.21.3: 1990
Av
—
—
Cv
IEC60534-2-3: 1997
JIS B 2005: 1995
Equipment: JIS B 8471, 8472, 8473
2. Pneumatic equipment
2.1 Indication according to the international standards
(1) Conformed standard
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
The flow characteristics are indicated as a result of a comparison between sonic conductance C and critical pressure ratio b.
Sonic conductance C : Value which divides 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 a standard condition.
Critical pressure ratio b : Pressure ratio (downstream pressure/upstream pressure) which will turn to a choked flow when the
value is smaller than this ratio.
Choked flow
: 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.
Subsonic flow
: Flow greater than the critical pressure ratio
Standard condition
: Air in a temperature state of 20°C, absolute pressure 0.1 MPa (= 100 kPa = 1 bar), relative humidity
65%.
It is stipulated by adding the “(ANR)” after the unit depicting air volume.
(standard reference atmosphere)
Conformed standard: ISO 8778: 1990 Pneumatic fluid power—Standard reference
atmosphere, JIS B 8393: 2000: Pneumatic fluid power—Standard reference atmosphere
(3) Formula for flow rate
It is described by the practical units 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)
P2 + 0.1
———— – b
P1 + 0.1
1 – ——————
1–b
2
293
———— ···························· (2)
273 + t
Q : Air flow rate [dm3/min (ANR)], dm3 (Cubic decimeter) of SI unit are also allowed to be described by l (liter). 1 dm3 = 1 l
16
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 are shown in Graph (1) For details, please make use of SMC’s “Energy Saving Program”.
Example)
Obtain the air flow rate for P1 = 0.4 [MPa], P2 = 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 Graph (1), it is going to be 0.7 if it is read by the pressure ratio as 0.8 and the flow rate ratio to be b = 0.3.
Hence, flow rate = maximum flow rate x flow rate 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
P2
Equipment
C, b
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
(4) Test method
Attach a test equipment with the test circuit shown in Fig. (1) while maintaining the upstream pressure to a certain level which
does not go below 0.3 MPa. Next, measure the maximum flow to be saturated in the first place, then 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 subsonic flow formula to find b, then obtain the critical
pressure ratio b from that average.
Pressure gauge or
pressure convertor
Air
supply
Filter
ød3 ≥ 3d1
Shut off
valve
3d3
≥ 10d3
10d1
Differential pressure gauge or
differential pressure converter
ød2
Pressure control
equipment
ød1
Thermometer
3d1 10d2
Flow control
valve
3d2
Flow meter
Pipe for measuring Equipment
temperature
for test
Pipe for
Pipe for
measuring
measuring
pressure in the
pressure in the
upstream side downstream side
Fig. (1) Test circuit based on ISO 6358, JIS B 8390
17
Solenoid Valve Flow Characteristics
2.2 Effective area S
(1) Conformed standard
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 : 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.
(3) Formula for 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
P2 + 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
Fig. (2) Test circuit based on JIS B 8390
18
Rectifier tube in the
downstream side
convertor
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 are also allowed to be described by l (liter). 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
(2) by the sonic conductance C, it is the same formula as when b = 0.5.
(4) Test method
Attach a test equipment with the test circuit shown in Fig. (2) in order to 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 the compressed air at a certain pressure level
(0.5 MPa) which does not go 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 to determine the effective area S, using the following formula. The
volume of an air tank should be selected within the specified range by corresponding to the effective area of an equipment for
test. In the case of JIS B 8373, 8374, 8375, 8379, 8381, the pressure values are in parentheses and the coefficient of the
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
Pressure control
Solenoid valve
Ps : Pressure inside air tank
circuit
equipment
before discharging [MPa]
Equipment for test
P : Residual pressure inside air tank
Air tank
after discharging [MPa]
T : Temperature inside air tank
Air
Filter
Shut off
Pressure gauge
supply
before discharging [K]
valve
or pressure
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 (P2 + Pa)
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 : Upstream absolute temperature [K]
Test conditions are 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 ISO 6358 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. Process fluid control equipment
(1) Conformed standard
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: Solenoid valve 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 practical units. Also, the flow characteristics are shown in 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 : Specific gravity [water = 1]
In the case of saturated steam:
Q = 8.3 x 106Av ∆P (P2 + 0.1) ··············································································(10)
Q : Flow rate [kg/h]
Av : Flow coefficient [m2]
∆P : Pressure difference [MPa]
P1 : Upstream pressure [MPa]: ∆P = P1 – P2
P2 : Downstream pressure [MPa]
19
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 m3/h which runs through a valve at 5 to 40°C, when the pressure
difference is 1 bar.
Cv factor (Reference values): Value of the clean water flow rate represented by US gal/min which runs through a valve at 60°F,
when the pressure difference is 1 lbf/in2 (psi).
Value is different from Kv and Cv factors for pneumatic purpose due to different test method.
Upstream pressure
2
P1 = 1 MPa
P1 = 0.8 MPa
1
P1 = 0.6 MPa
0.9
0.8 Example 2
0.7
0.6 P1 = 0.5 MPa
0.5
1
0.9
0.8
0.7
0.6
0.5
P1 = 0.4 MPa
0.4
P1 = 0.3 MPa
Example 1
0.3
0.4
l
Saturated steam flow rate Q0 [kg/h] (when Av = 1 x 10–6 [m2])
2
0.3
P1 = 0.2 MPa
0.2
0.2
P1 = 0.1 MPa
0.1
0.001
0.01
0.002 0.003 0.004
0.02 0.03 0.04
Water flow rate Q0 [ /min] (When Av = 1 x 10–6 [m2])
3
3
0.1
0.1
Pressure differential ∆P [MPa]
Graph (2) Flow characteristics
Example 1)
Obtain the pressure difference when water 15 [l/min] runs through a solenoid valve with an Av = 45 x 10–6 [m2].
Since Q0 = 15/45 = 0.33 [l/min], according to Graph (2), if reading ∆P when Q0 is 0.33, it will be 0.031 [MPa].
Example 2)
Obtain the saturated steam flow rate when P1 = 0.8 [MPa], ∆P = 0.008 [MPa] with a solenoid valve with an Av =1.5 x 10–6 [m2].
According to 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
Attach a test equipment with the test circuit shown in Fig. (3). Next, pour water at 5 to 40°C, then 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
Restrictor in the
upstream side
Flow
meter
2d
≥ 20d
Equipment
for test
Pressure
tap
6d
Restrictor in the
downstream side
≥ 10d
Fig. (3) Test circuit based on IEC60534-2-3, JIS B 2005
20
Flow Characteristics
Note) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer to
pages 16 to 20.
Air
Upstr
Downstream pressure (P2) MPa
1.0
eam
press
ure o
f valv
e P1 ≈
0.8
1.0 M
Pa
Subsonic
0.9
0.6
cal
Criti sure
s
pre
Sonic
0.8
0.7
0.4
0.6
0.5
0.4
0.2
0.3
0.2
0.1
0
VXK211l
VXK2l2l
VXK2l3l
50
100
150
200
250
300
100
200
300
400
500
600
200
400
VXK2 32 4l
600
500
3
2
VXK2 5l
800
1,000
500
1,000
350
ø2
ø3
ø4.5
1,200
ø6
1,250
ø8
700
Flow rate Q l/min (ANR)
How to read the graph
The sonic range pressure to generate a flow rate of 500 l/min (ANR) is
P1 ≈ 0.14 MPa for a ø6 orifice (VXK2 32 4l) and
P1 ≈ 0.3 MPa for a ø4.5 orifice (VX2l3l).
Saturated Steam
Downstream pressure of valve (P2) MPa
1.0
0.9
0.8
(663) (179)
Upst
0.7
0.6
(660) (164)
of va
lve P
0.9
1
≈ 1.0
0.85
MPa
0.8
0.75
Subsonic
cal
Criti sure
s
e
pr
0.7
0.65
0.6
0.55
(656) (151)
0.3
(654) (143)
0.2
(650) (133)
0.1
(646) (120)
Sonic
0.5
0.45
0.4
0.3
0.05
0.1
0.15
0.2
VXK211l
VXK2l3l
sure
0.95
(658) (158)
0.4
VXK2l2l
pres
(662) (174)
(661) (170)
0.5
ream
(664) (183)
0.35
0.25
5
5
10
10
15
VXK 32 4l
3
2
VXK 50
10
15
20
30
25
30
ø2
15
20
25
30
40
60
ø3
30
50
60
ø4.5
ø6
ø8
Flow rate Q kg/h
( ): Saturated steam holding heat (kcal/kg) ( ): Saturation temperature (°C)
How to read the graph
The sonic range pressure to generate a flow rate of 15 kg/h is
P1 ≈ 0.15 MPa for ø4.5 orifice (VXK2l3lS), P1 ≈ 0.37 MPa for ø3 orifice (VXK2l2lS), and
P1 ≈ 0.82 MPa for ø2 orifice (VXK211lS). The holding heat slightly differs depending on the pressure P1, but at 15 kg/h it is approx. 9700 kcal/h.
21
Flow Characteristics
Water
30
20
3
V
10
Flow rate Q l/min
0 ø8
25
XK2
2
VXK
5
4
3
3
2
6
4lø
.5
4
3lø
l
2
ø3
VXK
l2l
2
K
VX
2
1
0.1
0.001 (0.0018)
(0.0054)
0.01
(0.017)
0.05 (0.07)
Pressure differential gP = (P1 – P2) MPa
How to read the graph
When a water flow of 2 l/min is generated, gP ≈ 0.017 MPa for a valve with ø3 orifice (VXK212l, 222l, 232l).
22
2
1lø
21
VXK
Glossary of Terms
Pressure Terminology
Others
1. Maximum operating pressure differential
1. Material
The maximum pressure differential (the difference between the inlet
and outlet pressure) which is allowed for operation. When the outlet
pressure is 0 MPa, this becomes the maximum operating pressure.
2. Minimum operating pressure differential
The minimum pressure differential (the difference between the inlet pressure and outlet pressure) required to keep the main valve stably operating.
NBR: Nitrile rubber
FKM: Fluororubber – Trade names: Viton®, Dai-el®, etc.
EPDM: Ethylene propylene rubber
PTFE: Polytetrafluoroethylene resin – Trade names: Teflon®,
Polyflon®, etc.
2. Oil-free treatment
The degreasing and washing of wetted parts.
3. Maximum system pressure
The maximum pressure that can be applied inside the pipelines
(line pressure).
(The pressure differential of the solenoid valve portion 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)
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.
5. 100 mesh
The number of meshes over a length of 25.4 mm (1 inch).
Electrical Terminology
1. Apparent power (VA)
Volt-ampere is the product of voltage (V) and current (A).
Power consumption (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 by shutting off the
power in the shut-off area.
3. Enclosure
A degree of protection defined in the “JIS C 0920: Waterproof test
of electric machinery/appliance and the degree of protection
against the intrusion of solid foreign objects”.
Verify the degree of protection for each product.
IP
Second characteristic numeral
First characteristic numeral
P First Characteristics:
Degrees of protection against solid foreign objects
0
1
2
3
4
5
6
Non-protected
Protected against solid foreign objects of 50 mm ø and greater
Protected against solid foreign objects of 12 mm ø and greater
Protected against solid foreign objects of 2.5 mm ø and greater
Protected against solid foreign objects of 1.0 mm ø and greater
Dust-protected
Dusttight
P Second Characteristics:
Degrees of protection against water
0
1
2
3
4
5
6
7
8
Non-protected
Protected against vertically falling water drops
Protected against vertically falling water drops when enclosure tilted up to 15°
Protected against rainfall when enclosure tilted up to 60°
Protected against splashing water
Protected against water jets
Protected against powerful water jets
Protected against the effects of temporary immersion in water
Protected against the effects of continuous immersion in water
—
Dripproof type 1
Dripproof type 2
Rainproof type
Splashproof type
Low jetproof type
Strong jetproof type
Immersible type
Submersible type
Example) IP65: Dusttight, Low jetproof type
“Low jetproof type” means that no water intrudes inside an
equipment that could hinder from operating normally by means
of applying water for 3 minutes in the prescribed manner. Take
appropriate protection measures, since a device is not usable in
an environment where a droplet of water is splashed constantly.
23
Series VXK
Specific Product Precautions 1
Be sure to read before handling.
Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) for 2 Port Solenoid Valves for Fluid Control Precautions.
Replacement of Strainer
Warning
1. The valve will reach high temperatures from
high temperature fluids such as steam. Confirm that the valve has cooled sufficiently
before performing works.
If touched inadvertently, there is a danger of being burned.
2. Shut off the fluid supply and release the fluid
pressure in the system.
3. Shut off the power supply.
1)Turn and remove the plug (width across flats
of 27 mm).
2) Remove the strainer, and clean or replace it.
3) Mount the O-ring on the plug and insert the
strainer to the end of the plug.
4) Screw the plug into the body.
(Recommended tightening torque: 23 to 27
N· m)
Strainer
O-ring
Plug
Back page 1
Series VXK
Specific Product Precautions 2
Be sure to read before handling.
Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) for 2 Port Solenoid Valves for Fluid Control Precautions.
Replacement of Solenoid Coil
N.C.
N.O.
Clip
E stop ring
Solenoid coil
Solenoid coil
q
Pull out the clip horizontally in direction q.
Remove the E stop ring in
direction q.
q
∗ When doing this, do not apply
twisting or torsion to the clip.
Otherwise, the clip may be deformed. If the clip is deformed
by mistake, replace it with a
new one.
Collar
Name plate
Name plate
w
The removal of the clip will
make it possible to remove
the coil in direction w.
The removal of the E stop
ring will make it possible to
remove the coil in direction
w.
w
Wave washer
e
e
After replacement of the
coil, attach the name plate
so that its printed side is
facing upwards, and press
the clip horizontally in direction e.
Warning
After replacement of the
coil, attach the name plate
so that its printed side is
facing upwards, and mount
the collar, and then press
the E stop ring horizontally
in direction e.
1. When replacing the solenoid coil, turn off the power supply.
2. Be careful for possible high temperature of the solenoid coil due to the fluid temperature and
operating conditions.
3. Check the type of the solenoid coil (size, rated voltage, voltage specification, insulation specification).
∗ Replacement of solenoid coil
• Cannot be changed between DC and AC.
• Cannot be changed between DC and AC (built-in full-wave rectifier type).
• Can be changed from DC to DC.
• Can be changed from AC to AC.
Back page 2
Safety Instructions
Caution:
Warning:
Danger :
These safety instructions are intended to prevent hazardous situations and/or
equipment damage. These instructions indicate the level of potential hazard with
the labels of “Caution,” “Warning” or “Danger.” They are all important notes for
safety and must be followed in addition to International Standards (ISO/IEC)∗1),
and other safety regulations.
Caution indicates a hazard with a low level of risk
which, if not avoided, could result in minor or
moderate injury.
Warning indicates a hazard with a medium level of
risk which, if not avoided, could result in death or
serious injury.
∗1) ISO 4414: Pneumatic fluid power – General rules relating to systems.
ISO 4413: Hydraulic fluid power – General rules relating to systems.
IEC 60204-1: Safety of machinery – Electrical equipment of machines.
(Part 1: General requirements)
ISO 10218-1: Manipulating industrial robots - Safety.
etc.
Danger indicates a hazard with a high level of risk
which, if not avoided, will result in death or serious
injury.
Caution
Warning
1. The compatibility of the product is the responsibility of the
person who designs the equipment or decides its specifications.
Since the product specified here is used under various operating conditions, its
compatibility with specific equipment must be decided by the person who designs
the equipment or decides its specifications based on necessary analysis and test
results. The expected performance and safety assurance of the equipment will be
the responsibility of the person who has determined its compatibility with the
product. This person should also continuously review all specifications of the
product referring to its latest catalog information, with a view to giving due
consideration to any possibility of equipment failure when configuring the
equipment.
2. Only personnel with appropriate training should operate
machinery and equipment.
The product specified here may become unsafe if handled incorrectly. The
assembly, operation and maintenance of machines or equipment including our
products must be performed by an operator who is appropriately trained and
experienced.
3. Do not service or attempt to remove
machinery/equipment until safety is confirmed.
product
1. The product is provided for use in manufacturing industries.
The product herein described is basically provided for peaceful use in
manufacturing industries.
If considering using the product in other industries, consult SMC beforehand and
exchange specifications or a contract if necessary.
If anything is unclear, contact your nearest sales branch.
Limited warranty and Disclaimer/
Compliance Requirements
The product used is subject to the following “Limited warranty and Disclaimer”
and “Compliance Requirements”.
Read and accept them before using the product.
Limited warranty and Disclaimer
and
1. The inspection and maintenance of machinery/equipment should only be
performed after measures to prevent falling or runaway of the driven objects
have been confirmed.
2. When the product is to be removed, confirm that the safety measures as
mentioned above are implemented and the power from any appropriate source
is cut, and read and understand the specific product precautions of all relevant
products carefully.
3. Before machinery/equipment is restarted, take measures to prevent
unexpected operation and malfunction.
4. Contact SMC beforehand and take special consideration of safety
measures if the product is to be used in any of the following
conditions.
1. Conditions and environments outside of the given specifications, or use
outdoors or in a place exposed to direct sunlight.
2. Installation on equipment in conjunction with atomic energy, railways, air
navigation, space, shipping, vehicles, military, medical treatment, combustion
and recreation, or equipment in contact with food and beverages, emergency
stop circuits, clutch and brake circuits in press applications, safety equipment
or other applications unsuitable for the standard specifications described in the
product catalog.
3. An application which could have negative effects on people, property, or
animals requiring special safety analysis.
4. Use in an interlock circuit, which requires the provision of double interlock for
possible failure by using a mechanical protective function, and periodical
checks to confirm proper operation.
1. The warranty period of the product is 1 year in service or 1.5 years after
the product is delivered.∗2)
Also, the product may have specified durability, running distance or
replacement parts. Please consult your nearest sales branch.
2. For any failure or damage reported within the warranty period which is clearly our
responsibility, a replacement product or necessary parts will be provided.
This limited warranty applies only to our product independently, and not to any
other damage incurred due to the failure of the product.
3. Prior to using SMC products, please read and understand the warranty terms
and disclaimers noted in the specified catalog for the particular products.
∗2) Vacuum pads are excluded from this 1 year warranty.
A vacuum pad is a consumable part, so it is warranted for a year after it is delivered.
Also, even within the warranty period, the wear of a product due to the use of the vacuum pad
or failure due to the deterioration of rubber material are not covered by the limited warranty.
Compliance Requirements
1. The use of SMC products with production equipment for the manufacture of
weapons of mass destruction (WMD) or any other weapon is strictly prohibited.
2. The exports of SMC products or technology from one country to another are
governed by the relevant security laws and regulations of the countries involved
in the transaction. Prior to the shipment of a SMC product to another country,
assure that all local rules governing that export are known and followed.
Revision history
Edition B ∗ Addition of plug assembly part no. to strainer part no.
∗ Change of O-ring part no. in strainer part no.
OZ
Safety Instructions Be sure to read “Handling Precautions for SMC Products” (M-E03-3) before using.
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
© 2010 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 MY printing OZ 12450SZ Printed in Japan.
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