VX2 Series Direct Operated 2 Port Solenoid Valves

VX2 Series Direct Operated 2 Port Solenoid Valves
Direct Operated 2 Port Solenoid Valve New
RoHS
Air
Medium
vacuum
Water
Oil
Large flow rate
Compact
Lightweight
Flow rate
Height
Weight
20% More flow 10
(Size 1)
(Size 1)
Comparison with SMC convenional
model
Conventional model
Body
material
% Smaller
30
% Lighter
(Size 1, Aluminum body)
New VX
Air
Enclosure
Water/Oil/
Medium vacuum
IP65
Aluminum, Resin
Electrical entry
"Faston" type
terminal is IP40.
With one-touch fittings
(resin body)
68 mm
61 mm
C37 (Brass),
Stainless steel
Power
consumption
4.5 W
7W
10.5 W
(Size 1)
(Size 2)
(Size 3)
(DC)
Bracket
Standard
equipment
Series VX21/22/23
CAT.ES70-44A
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Direct Operated 2 Port Solenoid Valve
Medium Water
vacuum
Air
Oil
Enclosure
IP65
Power consumption
4.5 W (Size 1)
7 W (Size 2)
10.5 W (Size 3)
Flame resistance
UL94V-0 conformed
Improved armature
durability
Low-noise
construction
Metal noise reduced
by the rubber damper
Body material
Air Aluminum, Resin
Piping variations
Water/
C37 (Brass),
Oil/
Medium Stainless steel
vacuum
Thread piping, one-touch fitting
Built-in full-wave rectifier type (AC specification)
Improved durability
Improved OFF response
Service life is extended by the special construction.
(compared with current shading coil)
Specially constructed to improve the OFF response
when operated with a higher viscosity fluid such as oil.
Reduced buzz noise
Low-noise construction
Rectified to DC by the full-wave rectifier, resulting in a
buzz noise reduction.
Specially constructed to reduce the metal noise
during operation.
Reduced apparent power
10 VA m 7 VA (Size 1) 20 VA m 9.5 VA (Size 2)
32 VA m 12 VA (Size 3)
Normally Closed (N.C.)
Size
Orifice diameter
2 mmø
3 mmø
Size 1
4 mmø
5 mmø
—
Size 2
—
—
Size 3
—
—
8 mmø
10 mmø
—
—
—
1/8, 1/4
One-touch fitting: ø6, ø8
—
—
1/4, 3/8
One-touch fitting: ø8, ø10
—
—
Port size
7 mmø
—
1/4, 3/8, 1/2
One-touch fitting: ø10, ø12
Features 1
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
Note 1) Electrical entry "Faston" type terminal is IP40.
Note 2) Voltage in ( ) indicates special voltage. (Refer to page 10.)
Be sure to read “Specific Product Precautions” before handling.
Solenoid Coil Specifications
Normally Closed (N.C.)
DC Specification
AC Specification (Built-in Full-wave Rectifier Type)
Power consumption (W) Note 1) Temperature rise (C°) Note 2)
4.5
50
7
55
10.5
65
Apparent power (VA) Note 1) 2)
7
9.5
12
Size
Size 1
Size 2
Size 3
Note 1) Power consumption, Apparent power: The value at ambient temperature of
20°C and when the rated voltage is applied. (Variation: ±10%)
Note 2) The value at ambient temperature of 20°C and when the rated voltage is
applied. The value depends on the ambient environment. This is for
reference.
Temperature rise (C°) Note 3)
60
70
70
Note 1) Power consumption, Apparent power: The value at ambient temperature of
20°C and when the rated voltage is applied. (Variation: ±10%)
Note 2) There is no difference in the frequency and the inrush and energized apparent
power, since a rectifying circuit is used in the AC (built-in full-wave rectifier type).
Note 3) The value at ambient temperature of 20°C and when the rated voltage is
applied. The value depends on the ambient environment. This is for
reference.
Selection Steps
Select the fluid.
Selection item
Page
Symbol
Air
P. 2
0
Water
P. 6
2
Oil
P. 8
3
Medium
vacuum
P. 4
4
Dimensions
Step 1 Select the fluid.
Item
For Air
Construction
Size
Size 1
Size 2
Size 3
For Medium
Vacuum
Coil
specifications
For Water
Valve
specifications
Direct operated poppet
Valve construction
MPa
Withstand pressure
2.0 (resin body type 1.5)
Body material
Aluminum, Resin, C37 (Brass), Stainless steel
Seal material
NBR, FKM
Enclosure
Dusttight, Low jetproof (IP65) Note 1)
Environment
Location without corrosive or explosive gases
100 VAC, 200 VAC, 110 VAC, 230 VAC (220 VAC, 240 VAC, 48 VAC) Note 2)
AC
Rated voltage
24 VDC (12 VDC) Note 2)
DC
Allowable voltage fluctuation
p10% of rated voltage
10% or less of rated voltage
Allowable leakage AC (Built-in full-wave rectifier type)
voltage
DC
2% or less of rated voltage
Coil insulation type
Class B
For Oil
Standard Specifications
Specifications
Common Specifications/Selection Steps
VX2 3 0 A A
Step 2 Select “Body material”, “Port size” and “Orifice diameter” from “Flow rate — Pressure” of each fluid.
Item
Select from “Flow
rate — Pressure.”
• Body material
• Port size
• Orifice diameter
Selection item
Size
Symbol
Size 3
3
Body material Aluminum
Port size
1/8
Orifice diameter
2
A
VX2 3 0 A A
Step 3 Select electrical specification.
Item
Select electrical
specification.
Selection item
Voltage
Symbol
24 VDC
Electrical entry Grommet
A
VX2 3 0 A A
Step 4 For other special options, refer to page 10.
1
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
For Air Single Unit
Model/Valve Specifications
N.C.
Passage symbol
2
1
Normally Closed (N.C.)
AIuminum Body Type
Size
Port size
1
1/8, 1/4
2
1/4, 3/8
3
1/4, 3/8
Orifice diameter
(mmø)
2
3
5
4
7
5
8
10
10
1/2
Model
Flow-rate characteristics
C
[dm3/(s·bar)]
0.63
1.05
2.20
1.90
3.99
1.96
5.67
5.74
8.42
VX210
VX220
VX230
b
0.63
0.68
0.39
0.52
0.44
0.55
0.33
0.64
0.39
Cv
0.23
0.41
0.62
0.62
1.08
0.75
1.58
2.21
2.21
Maximum operating
pressure differential
(MPa)
1.0
0.6
0.2
1.0
0.15
1.0
0.3
0.1
0.1
Weight Note)
(g)
220
220
220
340
340
450
450
450
470
Resin Body Type (Built-in One-touch Fittings)
Size
Port size
Orifice diameter
(mmø)
C6
1
C8
C8
2
C10
C10
3
C12
2
3
5
2
3
5
4
7
4
7
5
8
10
5
8
10
Model
VX210
VX220
VX230
Flow-rate characteristics
C
[dm3/(s·bar)]
0.82
1.25
1.45
0.82
1.81
2.11
1.69
3.14
1.68
3.54
2.50
2.77
5.69
2.50
2.56
5.69
b
Cv
0.44
0.34
0.43
0.44
0.40
0.32
0.40
0.34
0.49
0.36
0.44
0.82
0.46
0.44
0.88
0.64
0.23
0.35
0.40
0.23
0.41
0.56
0.47
0.84
0.50
0.90
0.70
1.22
1.54
0.70
1.38
1.76
Maximum operating
pressure differential
(MPa)
1.0
0.6
0.2
1.0
0.6
0.2
1.0
0.15
1.0
0.15
1.0
0.3
0.1
1.0
0.3
0.1
Weight Note)
(g)
220
220
220
220
220
220
340
340
340
340
460
460
460
460
460
460
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 16 for details on the maximum operating pressure differential.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage
Fluid temperature (oC)
−10 Note) to 60
Ambient temperature (oC)
−20 to 60
Note) Dew point temperature: –10oC or less
Seal material
NBR
Leakage rate (Air) Note)
1 cm3/min or less (AIuminum body type)
15 cm3/min or less (Resin body type)
External Leakage
Leakage rate (Air) Note)
1 cm3/min or less (AIuminum body type)
NBR
15 cm3/min or less (Resin body type)
Note) Leakage is the value at ambient temperature 20°C.
Seal material
2
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Direct Operated 2 Port Solenoid Valve
Series VX21/22/23
For Air Single Unit
VX2 1 0 A A
Common Specifications
Fluid
2
3
Size 2
Size 3
Single
unit
N.C.
Single
unit
N.C.
Body
Symbol
material
A
B
C
D
E
F
H
J
K
L
M
N
A
B
D
E
H
J
L
M
A
B
C
D
E
F
G
H
J
K
L
M
N
Port size
Orifice
diameter
Voltage/Electrical entry
Symbol
Grommet
3
A
24 VDC
5
B
100 VAC
2
C
110 VAC
D
200 VAC
2
E
230 VAC
3
F
24 VDC
5
G
24 VDC
4
H
100 VAC
5
Aluminum
Electrical entry
Voltage
2
1/8
For Air
Body material/Port size/Orifice diameter
Rc
2
1/4
ø6 one-touch fitting
3
3
5
Resin
ø8 one-touch fitting
1/4
Aluminum
3/8
ø8 one-touch fitting
Resin
ø10 one-touch fitting
7
J
110 VAC
K
200 VAC
4
L
230 VAC
7
M
24 VDC
4
N
100 VAC
P
110 VAC
Q
200 VAC
R
230 VAC
4
7
7
5
1/4
8
10
Aluminum
S
24 VDC
8
T
100 VAC
10
U
110 VAC
V
200 VAC
W
230 VAC
5
3/8
1/2
10
5
ø10 one-touch fitting
8
10
Resin
Grommet
With surge
voltage
suppressor
For Water
Size 1
Single
unit
N.C.
Thread type
DIN terminal
With surge
voltage
suppressor
For Oil
1
Size
Coil insulation type Class B
For air
Conduit terminal
With surge
voltage
suppressor
Construction
Symbol
Valve
type
NBR
Conduit
With surge
voltage
suppressor
Dimensions
Size/Valve type
N.C.
Seal material
For Medium
Vacuum
0
Valve type
Specifications
RoHS
How to Order (Single Unit)
Faston terminal
5
ø12 one-touch fitting
8
Y
24 VDC
10
Z
Other voltages and electrical options
For other special options, refer to
page 10.
48 VAC
Special voltage
220 VAC
240 VAC
12 VDC
DIN terminal with light
Conduit terminal with light
Low concentration ozone resistant
(Seal material: FKM)
Oil-free
G thread
Dimensions m Page 11 (Single unit)
NPT thread
3
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
For Medium Vacuum Single Unit
Model/Valve Specifications
N.C.
Passage symbol (Application example)
: Used with vacuum
2
@ Used with pressure
1
2
1
Normally Closed (N.C.)
Size
Port size
Orifice
diameter
(mmø)
Flow-rate characteristics
Model
2
3
1/4, 3/8
b
Cv
0.63
0.23
0 to 1.0
220
1.05
0.68
0.41
0 to 0.6
220
5
2.20
0.39
0.62
0 to 0.2
220
4
1.90
0.52
0.62
0 to 1.0
340
3.99
0.44
1.08
0 to 0.15
340
5
1.96
0.55
0.75
0 to 1.0
450
8
5.67
0.33
1.58
0 to 0.3
450
5.74
0.64
2.21
0 to 0.1
450
8.42
0.39
2.21
0 to 0.1
470
7
1/4, 3/8
10
1/2
Note)
Weight
(g)
0.63
3
1/8, 1/4
@ Used with
pressure (MPa)
C [dm3/(s·bar)]
2
1
Operating pessure range
: Used with
vacuum (Pa·abs)
VX214
VX224
VX234
10
0.1 to
atmospheric
pressure
Note) Weight of grommet type. Add 10 g for conduit type, 30 g for DIN terminal type, 60 g for conduit terminal type respectively.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage
Fluid temperature (oC)
Ambient temperature (oC)
Seal material
Leakage rate Note)
1 to 60
−20 to 60
FKM
10−6Pa·m3/sec or less
Note) With no freezing
External Leakage
Seal material
Leakage rate Note)
FKM
10−6Pa·m3/sec or less
Note) Leakage (10−6Pa·m3/sec) is the value at differential pressure
0.1 MPa and ambient temperature 20°C.
4
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Direct Operated 2 Port Solenoid Valve
Series VX21/22/23
For Medium Vacuum Single Unit
VX2 1 4 A A
Common Specifications
Fluid
2
3
Size 2
Size 3
Single
unit
N.C.
Single
unit
N.C.
A
B
D
E
H
J
L
M
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Voltage/Electrical entry
Symbol
Voltage
2
1/8
1/8
A
24 VDC
5
B
100 VAC
2
C
110 VAC
D
200 VAC
2
E
230 VAC
3
F
24 VDC
5
G
24 VDC
4
H
100 VAC
3
3
5
Stainless
steel
1/4
1/4
C37
3/8
1/4
3/8
7
J
110 VAC
K
200 VAC
4
L
230 VAC
7
M
24 VDC
4
N
100 VAC
P
110 VAC
Q
200 VAC
R
230 VAC
4
7
7
5
1/4
8
10
C37
S
24 VDC
8
T
100 VAC
10
U
110 VAC
V
200 VAC
W
230 VAC
5
3/8
1/2
10
5
1/4
Stainless
steel
Grommet
2
1/4
Stainless
steel
Electrical entry
3
5
C37
For Air
Single
unit
N.C.
A
B
C
D
E
F
H
J
K
L
M
N
Port size
Orifice
diameter
For Medium
Vacuum
Size 1
Symbol
Body
material
Rc
8
10
Grommet
With surge
voltage
suppressor
For Water
1
Size
Thread type
DIN terminal
With surge
voltage
suppressor
For Oil
Symbol
Coil insulation type Class B
For medium vacuum
Body material/Port size/Orifice diameter
Valve
type
FKM
Conduit terminal
With surge
voltage
suppressor
Construction
Size/Valve type
N.C.
Seal material
Conduit
With surge
voltage
suppressor
Dimensions
4
Valve type
Specifications
RoHS
How to Order (Single Unit)
Faston terminal
5
3/8
8
Y
24 VDC
10
1/2
10
Z
Other voltages and electrical options
For other special options, refer to
page 10.
48 VAC
Special voltage
220 VAC
240 VAC
12 VDC
DIN terminal with light
Conduit terminal with light
G thread
NPT thread
Bracket interchangeable with old type
Dimensions m Page 11 (Single unit)
5
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
For Water Single Unit
Model/Valve Specifications
N.C.
Passage symbol
2
1
Normally Closed (N.C.)
Size
Port size
Orifice diameter
(mmø)
Model
2
3
1/8, 1/4
1/4, 3/8
1/4, 3/8
Maximum operating
Note)
pressure differential Weight
(g)
(MPa)
5.5
0.23
1
300
0.42
0.6
300
5
15.0
0.63
0.2
300
4
15.0
0.63
1
460
26.0
1.08
0.15
460
5
18.0
0.75
1
580
8
38.0
1.58
0.3
580
53.0
2.21
0.1
580
53.0
2.21
0.1
630
3
7
10
1/2
AV
Conversion Cv
10.0
2
1
Flow-rate characteristics
VX212
VX222
VX232
10
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 16 for details on the maximum operating pressure differential.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage
Fluid temperature (oC)
Ambient temperature (oC)
Seal material
Leakage rate (Water) Note)
1 to 60
−20 to 60
NBR
0.1 cm3/min or less
Note) With no freezing
External Leakage
Seal material
Leakage rate (Water) Note)
NBR
0.1 cm3/min or less
Note) Leakage is the value at ambient temperature 20°C.
6
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Direct Operated 2 Port Solenoid Valve
Series VX21/22/23
For Water Single Unit
VX2 1 2 A A
Common Specifications
Fluid
2
3
Size 2
Size 3
Single
unit
N.C.
Single
unit
N.C.
A
B
D
E
H
J
L
M
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Voltage/Electrical entry
Symbol
Voltage
2
1/8
1/8
A
24 VDC
5
B
100 VAC
2
C
110 VAC
D
200 VAC
2
E
230 VAC
3
F
24 VDC
5
G
24 VDC
4
H
100 VAC
3
3
5
Stainless
steel
1/4
1/4
C37
3/8
1/4
3/8
7
J
110 VAC
K
200 VAC
4
L
230 VAC
7
M
24 VDC
4
N
100 VAC
P
110 VAC
Q
200 VAC
R
230 VAC
4
7
7
5
1/4
8
10
C37
S
24 VDC
8
T
100 VAC
10
U
110 VAC
V
200 VAC
W
230 VAC
5
3/8
1/2
10
5
1/4
Stainless
steel
Grommet
2
1/4
Stainless
steel
Electrical entry
3
5
C37
For Air
Single
unit
N.C.
A
B
C
D
E
F
H
J
K
L
M
N
Port size
Orifice
diameter
For Medium
Vacuum
Size 1
Symbol
Body
material
Rc
8
10
Grommet
With surge
voltage
suppressor
For Water
1
Size
Thread type
DIN terminal
With surge
voltage
suppressor
For Oil
Symbol
Coil insulation type Class B
For water
Body material/Port size/Orifice diameter
Valve
type
NBR
Conduit terminal
With surge
voltage
suppressor
Construction
Size/Valve type
N.C.
Seal material
Conduit
With surge
voltage
suppressor
Dimensions
2
Valve type
Specifications
RoHS
How to Order (Single Unit)
Faston terminal
5
3/8
8
Y
24 VDC
10
1/2
10
Z
Other voltages and electrical options
For other special options, refer to
page 10.
48 VAC
Special voltage
220 VAC
240 VAC
12 VDC
DIN terminal with light
Conduit terminal with light
Oil-free
G thread
NPT thread
Bracket interchangeable with old type
Dimensions m Page 11 (Single unit)
7
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
For Oil Single Unit
When the fluid is oil.
The kinematic viscosity 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.
Model/Valve Specifications
N.C.
Passage symbol
2
1
Normally Closed (N.C.)
Size
Port size
Orifice diameter
(mmø)
Model
Flow-rate characteristics
AV
5.5
0.23
1
300
10.0
0.42
0.6
300
5
15.0
0.63
0.2
300
4
15.0
0.63
1
460
26.0
1.08
0.15
460
5
18.0
0.75
1
580
8
38.0
1.58
0.3
580
53.0
2.21
0.1
580
53.0
2.21
0.1
630
2
1
2
3
1/8, 1/4
1/4, 3/8
1/4, 3/8
3
7
10
1/2
Conversion Cv
Maximum operating
Note)
pressure differential Weight
(g)
(MPa)
VX213
VX223
VX233
10
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 16 for details on the maximum operating pressure differential.
Fluid and Ambient Temperature
Valve Leakage
Internal Leakage
Fluid temperature (oC)
Ambient temperature (oC)
Seal material
Leakage rate (Oil) Note)
−5 Note) to 60
−20 to 60
FKM
0.1 cm3/min or less
Note) Kinematic viscosity: 50 mm2/s or less
External Leakage
Seal material
Leakage rate (Oil) Note)
FKM
0.1 cm3/min or less
Note) Leakage is the value at ambient temperature 20°C.
8
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Direct Operated 2 Port Solenoid Valve
Series VX21/22/23
For Oil Single Unit
VX2 1 3 A A
Common Specifications
Fluid
2
3
Size 2
Size 3
Single
unit
N.C.
Single
unit
N.C.
A
B
D
E
H
J
L
M
A
B
C
D
E
F
G
H
J
K
L
M
N
P
Voltage/Electrical entry
Symbol
Voltage
2
1/8
1/8
A
24 VDC
5
B
100 VAC
2
C
110 VAC
D
200 VAC
2
E
230 VAC
3
F
24 VDC
5
G
24 VDC
4
H
100 VAC
3
3
5
Stainless
steel
1/4
1/4
C37
3/8
1/4
3/8
7
J
110 VAC
K
200 VAC
4
L
230 VAC
7
M
24 VDC
4
N
100 VAC
P
110 VAC
Q
200 VAC
R
230 VAC
4
7
7
5
1/4
8
10
C37
S
24 VDC
8
T
100 VAC
10
U
110 VAC
V
200 VAC
W
230 VAC
5
3/8
1/2
10
5
1/4
Stainless
steel
Grommet
2
1/4
Stainless
steel
Electrical entry
3
5
C37
For Air
Single
unit
N.C.
A
B
C
D
E
F
H
J
K
L
M
N
Port size
Orifice
diameter
8
10
Grommet
With surge
voltage
suppressor
For Water
Size 1
Symbol
Body
material
Rc
DIN terminal
With surge
voltage
suppressor
For Oil
1
Size
Thread type
Conduit terminal
With surge
voltage
suppressor
Construction
Symbol
Coil insulation type Class B
For oil
Body material/Port size/Orifice diameter
Valve
type
FKM
Conduit
With surge
voltage
suppressor
Dimensions
Size/Valve type
N.C.
Seal material
For Medium
Vacuum
3
Valve type
Specifications
RoHS
How to Order (Single Unit)
Faston terminal
5
3/8
8
Y
24 VDC
10
1/2
10
Z
Other voltages and electrical options
For other special options, refer to
page 10.
48 VAC
Special voltage
220 VAC
240 VAC
12 VDC
DIN terminal with light
Conduit terminal with light
Oil-free
G thread
NPT thread
Bracket interchangeable with old type
Dimensions m Page 11 (Single unit)
9
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Series VX21/22/23
Other Special Options
Other options
Electrical options
(Special voltage, with light)
VX2 1 0 A Z 1A
48 VAC
220 VAC
Grommet
240 VAC
12 VDC
1E
Grommet
(With surge
12 VDC voltage
suppressor)
1F
1G
1H
1J
1K
1L
1M
1N
1P
1Q
1R
1S
1T
48 VAC
220 VAC
240 VAC
12 VDC
48 VAC
220 VAC
240 VAC
12 VDC
48 VAC
220 VAC
240 VAC
12 VDC
12 VDC
Symbol
1A
1B
1C
1D
Electrical
entry
Specification
Symbol
Voltage
With light
Special voltage
Specification
Enter standard
product number.
Electrical option
Electrical option
(Special voltage, with light)
2A
2B
2C
2D
2E
2F
2G
2H
2J
2K
2L
2M
2N
2P
2Q
2R
2S
2T
DIN
terminal
Conduit
terminal
Conduit
Voltage
Electrical
entry
24 VDC
100 VAC
110 VAC
200 VAC
DIN
230 VAC terminal
48 VAC
220 VAC
240 VAC
12 VDC
24 VDC
100 VAC
110 VAC
200 VAC
Conduit
230 VAC terminal
48 VAC
220 VAC
240 VAC
12 VDC
Bracket interchangeable
with old type
(Low concentration ozone resistant,
oil-free, special thread)
VX2 1 0 A A Z
Enter standard
product number.
Other option
(Low concentration ozone
resistant, oil-free, special thread)
Low concentration
Note)
Symbol ozone resistant
(Seal material: FKM)
A
B
C
D
E
F
G
H
K
L
Z
Oilfree
—
—
>
—
—
>
>
—
>
>
>
>
—
>
Special
thread
G
NPT
Standard (Rc)
G
NPT
G
NPT
Standard (Rc)
G
NPT
Standard (Rc)
The brackets are interchangeable with
brackets of old VX21/22/23 series.
For details of exterior dimensions, please
contact SMC.
Only for C37 and stainless steel
(Select C37 when interchangeable product is
necessary for air.)
XB
VX
Enter standard
product number.
Bracket interchangeable
with old type
Note) Applicable to air
Enter symbols in the order below when ordering a combination of electrical option,
other options, and bracket interchangeable with old type.
Example) VX2 1 0 A Z 1A Z XB
Electrical option
Other option
Faston terminal
Bracket interchangeable
with old type
Construction
Normally closed (N.C.)
Body material: AIuminum, C37, Stainless steel
IN
Body material: Resin
:
:
@
@
.
.
;
;
=
=
B
B
OUT
OUT
IN
>
Component Parts
No.
1
2
3
4
5
6
7
Description
Solenoid coil
Fixed armature
Tube
Spring
Armature assembly
Seal
Body
>
Material
Cu + Fe + Resin
Stainless steel
Stainless steel
Stainless steel
NBR, FKM, Stainless steel
NBR, FKM
Aluminum, C37, Stainless steel
Component Parts
No.
1
2
3
4
5
6
7
Description
Solenoid coil
Fixed armature
Tube
Spring
Armature assembly
Seal
Body
Material
Cu + Fe + Resin
Stainless steel
Stainless steel
Stainless steel
NBR, Stainless steel
NBR, FKM
Resin (PBT)
10
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Series VX21/22/23
Direct Operated 2 Port Solenoid Valve
Air
Medium Water
vacuum
Oil
Grommet (with surge voltage suppressor)
Grommet (DC)
D
Q
F
D
F
For Air
E
2xP
Port size
B
DIN terminal
A
B1
B
For Medium
Vacuum
B1
Conduit terminal
E
C
E
R
R
C
F
25
Qp2
T
G1/2
F
For Water
Q
S
Cable ø6 to ø12
D
A
2xP
Port size
B1
B
A
For Oil
A
2xP
Port size
Q
z 300
R
C
R
C
z 300
E
2xP
Port size
Specifications
Dimensions: Body Material: Aluminum
Sp2
B1
Conduit
Construction
B
Faston type
F
D
Q
11
F
E
E
R
C
R
C
23
Dimensions
Q
z 280
G1/2
1
2
3
Size
1
2
3
2xP
Port size
B1
B
Port size
P
1/8, 1/4
1/4, 3/8
1/4, 3/8
1/2
Port size
P
1/8, 1/4
1/4, 3/8
1/4, 3/8
1/2
A
19
24
24
30
B
43
45
45
50
B1
21
22.5
22.5
25
C
61
76
81
86.5
R
64.5
67
69.5
69.5
34
45
50
53
S
30
35
40
40
E
9.5
12
12
15
F
20
22
24.5
24.5
Electrical entry
Conduit terminal
DIN terminal
Q
D
Q
52.5
99.5
55
102
57.5 104.5
57.5 104.5
R
36
47
52
55
S
T
68.5
77
71
91
73.5
96
73.5 101.5
A
B
(mm)
Electrical entry
Grommet (with
surge voltage
Grommet
suppressor)
Q
R
Q
R
27
29.5
32
32
42
53.5
58
61
30
32.5
35
35
28.5
39.5
44.5
47.5
Conduit
B1
Terminal part
Faston connector
250 Series
11
6.5
Size
A
9
15
2xP
Port size
Faston type
Q
R
Q
R
47.5
50
52.5
52.5
36
47
52
55
23
25.5
28
28
42
53.5
58
61
11
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Series VX21/22/23
For Air, Medium Vacuum, Water, Oil
Dimensions: Body Material: Resin
Y
W
Q
F
D
2 x ø3.4
Mounting
hole
X1
F
R
C
2 x ø3.4
Mounting
hole
E
E
B1
B
Conduit terminal
Q
S
F
U
U1
2 x ø3.4
Mounting
hole
D
E
R
R
C
E
2xP
Port size
2 x ø3.4
Mounting
hole
F
Qp2
T
D
Y
W
25
Cable ø6 to ø12
X1
U1
X
U
Y
W
X
DIN terminal
B1
2xP
Port size
B
X1
2xP
Port size
G1/2
Q
z 300
R
C
z 300
X
U
U1
X
X1
U1
D
Y
W
Grommet (with surge
voltage suppressor)
U
Grommet
B1
Sp2
2xP
Port size
B
B1
B
(mm)
For information on handling
one-touch fittings and
appropriate tubing, refer to
page 25 and KQ2 series
one-touch fittings in Best
Pneumatics No. 6.
The KQ2 series information
can be downloaded from the
following SMC website,
http://www.smcworld.com
Size
1
2
3
One-touch fitting
B
B1
C
D
E
F
C6, C8
C8, C10
C10, C12
53.5
66
68
29
36
37
65.5
76.5
84
30
35
40
13.5
15
16.5
20
22
24.5
P
Mounting bracket dimensions
U
U1
W
X
X1
Y
45
53
58
22.5
26.5
29
22
27
31
52
62
67
26
31
33.5
30
35
40
Electrical entry
Size
1
2
3
One-touch fitting
P
C6, C8
C8, C10
C10, C12
Grommet
Grommet (with
surge voltage
suppressor)
DIN terminal
Q
R
Q
R
Q
R
27
29.5
32
42.5
51
56.5
30
32.5
35
29
37
43
64.5
67
69.5
34.5
43
48.5
S
Conduit terminal
Q
R
52.5
99.5 36.5
55
102
45
57.5 104.5 50.5
S
T
68.5
71
73.5
81.5
91.5
98.5
12
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Series VX21/22/23
Direct Operated 2 Port Solenoid Valve
Air
Medium Water
vacuum
Oil
Faston type
D
Q
11
F
E
For Water
R
C
R
C
E
2xP
Port size
2xP
Port size
B1
B
For Air
F
2 x ø3.4
Mounting
hole
For Medium
Vacuum
Q
z 280
X
U
U1
X1
U1
D
2 x ø3.4
Mounting
hole
23
G1/2
Y
W
X
U
Y
W
X1
Conduit
Specifications
Dimensions: Body Material: Resin
B1
B
For Oil
Terminal part
Faston connector
250 Series
Size
1
2
3
One-touch fitting
P
C6, C8
C8, C10
C10, C12
B
B1
C
D
E
F
53.5
66
68
29
36
37
65.5
76.5
84
30
35
40
13.5
15
16.5
20
22
24.5
Dimensions
15
Construction
6.5
11
9
(mm)
Electrical entry
Conduit
Faston type
Mounting bracket dimensions
U
U1
W
X
X1
Y
Q
R
Q
R
45
53
58
22.5
26.5
29
22
27
31
52
62
67
26
31
33.5
30
35
40
47.5
50
52.5
36.5
45
50.5
23
25.5
28
42.5
51
56.5
13
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
For Air, Medium Vacuum, Water, Oil
Dimensions: Body Material: C37, Stainless Steel
Grommet
Grommet (with surge voltage suppressor)
D
Q
F
D
Q
z 300
F
E
E
R
C
R
C
z 300
B1
A
B1
A
B
2xP
Port size
B
2xP
Port size
DIN terminal
Conduit terminal
Cable ø6 to ø12
Q
D
F
S
Qp2
T
E
E
R
R
C
F
25
D
G1/2
A
A
B1
B
2xP
Port size
Sp2
B1
2xP
Port size
B
(mm)
Electrical entry
Size
1
2
3
Port size
P
1/8, 1/4
1/4, 3/8
1/4, 3/8
1/2
A
B
B1
C
D
E
F
19
22
22
29.5
43
45
45
50
21
22.5
22.5
25
61
74.5
79
85.5
30
35
40
40
9.5
10.5
10.5
14
20
22
24.5
24.5
Grommet
Grommet (with
surge voltage
suppressor)
DIN terminal
Q
R
Q
R
Q
R
27
29.5
32
32
42
53.5
57.5
61
30
32.5
35
35
28.5
39.5
44
47.5
64.5
67
69.5
69.5
34
45
49.5
53
S
Conduit terminal
Q
52.5
99.5
55
102
57.5 104.5
57.5 104.5
R
36
47
51.5
55
S
T
68.5
77
71
89.5
73.5
94
73.5 100.5
14
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
Direct Operated 2 Port Solenoid Valve
Air
Medium Water
vacuum
Oil
Conduit
Faston type
D
Q
z 280
F
D
11
Q
F
For Air
E
E
R
C
R
C
23
G1/2
Specifications
Dimensions: Body Material: C37, Stainless Steel
B1
A
B
B1
B
2xP
Port size
For Medium
Vacuum
A
2xP
Port size
For Water
Terminal part
Faston connector
250 Series
15
For Oil
6.5
11
9
3
P
1/8, 1/4
1/4, 3/8
1/4, 3/8
1/2
A
B
B1
C
D
E
F
19
22
22
29.5
43
45
45
50
21
22.5
22.5
25
61
74.5
79
85.5
30
35
40
40
9.5
10.5
10.5
14
20
22
24.5
24.5
Q
R
Q
R
47.5
50
52.5
52.5
36
47
51.5
55
23
25.5
28
28
42
53.5
57.5
61
Construction
1
2
Port size
Dimensions
Size
(mm)
Electrical entry
Conduit
Faston type
Replacement Parts
#
DIN Connector Part No.
Without electrical option
With electrical option (light)
#
C18312G6GCU
GDM2A L
Electrical option
L
With light
Rated voltage
1
2
5
6
8
Gasket for DIN Connector
VCW20-1-29-1
#
Lead Wire Assembly for Faston
Terminal (Set of 2 pcs.)
VX021S-1-16FB
100 VAC, 110 VAC
200 VAC, 220 VAC
230 VAC, 240 VAC
24 VDC
12 VDC
48 VAC
15
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Series VX21/22/23
Glossary of Terms
Others
Pressure Terminology
1. Material
1. Maximum operating pressure differential
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 fully opened.
3. Maximum system pressure
The maximum pressure that can be applied inside the
pipelines (line pressure).
[The pressure differential in the solenoid valve portion must be
less than the maximum operating pressure differential.]
NBR: Nitrile rubber
FKM: Fluoro rubber – Trade names: Viton®, Dai-el®, etc.
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.
Faston Terminal
1. Faston is a trademark of Tyco Electronics Corp.
2. For electrical connection of the Faston terminal and
molded coil, please use Tyco’s “Amp/Faston
connector/250 Series” or the equivalent.
TM
4. Withstand pressure
The pressure in which the valve must be withstood without a
drop in performance after holding for one minute under
prescribed (static) pressure and returning to the operating
pressure range. [value under the prescribed conditions]
Electrical Terminology
1. Surge voltage
A high voltage which is momentarily generated by shutting off
the power in the shut-off area.
2. 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
# 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 mmø and greater
Protected against solid foreign objects of 12 mmø and greater
Protected against solid foreign objects of 2.5 mmø and greater
Protected against solid foreign objects of 1.0 mmø and greater
Dust-protected
Dusttight
# 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 15o
Protected against rainfall when enclosure tilted up to 60o
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.
16
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Series VX21/22/23
Solenoid Valve Flow-rate Characteristics 1
(How to indicate flow-rate characteristics)
1. Indication of flow-rate characteristics
The flow-rate characteristics in equipment such as a solenoid valve, etc. are indicated in their specifications as
shown in Table (1).
Table (1) Indication of Flow-rate Characteristics
Corresponding
equipment
Indication by
Other
international standard indications
C, b
Pneumatic
equipment
Process fluid
control
equipment
—
Conformed standard
—
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. 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-rate characteristics
The flow-rate 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 20oC, 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
Described by the practical units as following.
P2 + 0.1
When ———— b b, choked flow
P1 + 0.1
293
Q = 600 x C (P1 + 0.1) ————
·····························································(1)
273 + t
P2 + 0.1 > b, subsonic flow
When ————
P1 + 0.1
2
P2 + 0.1
———— – b
P1 + 0.1
293
Q = 600 x C (P1 + 0.1) 1 – —————— ————
····························(2)
1–b
273 + t
Q : Air flow rate [dm3/min (ANR)], dm3 (Cubic decimeter) of SI unit are allowed to be described by L (liter).
1 dm3 = 1 L
17
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Series VX21/22/23
Solenoid Valve Flow-rate Characteristics 2
(How to indicate flow-rate characteristics)
C : Sonic conductance [dm3/(s·bar)]
b : Critical pressure ratio [—]
P1 : Upstream pressure [MPa]
P2 : Downstream pressure [MPa]
t : Temperature [oC]
Note) Formula of subsonic flow is the elliptic analogous curve.
Flow-rate 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 [oC] 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
0.3 + 0.1
Pressure ratio = ————— = 0.8
0.4 + 0.1
293
————— = 600 [dm3/min (ANR)]
273 + 20
Flow rate ratio
Based on Graph (1), the flow rate ratio will be 0.7 when the pressure ratio is 0.8 and b = 0.3.
Therefore, flow rate = Maximum flow rate x flow rate ratio = 600 x 0.7 = 420 [dm3/min (ANR)]
1
0.5
0.9
0.6
b = 0.1
0.8
0.2
0.7
0.3
0.6
0.4
0.5
0.4
0.3
P1 Equipment P2
0.2
C, b
Q
0.1
0
0 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-rate 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
Shut off
valve
r 10d3
10d1
Differential pressure gauge or
differential pressure converter
ød2
ød1
Thermometer
Pressure control
equipment
ød3 r 3d1
3d3
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
18
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Solenoid Valve Flow-rate Characteristics
Series VX21/22/23
2.2 Effective area S
(1) Conformed standard
JIS B 8390: 2000: Pneumatic fluid power—Components using compressible fluids—
How to test 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-rate characteristics
Effective area S : The cross-sectional area having an ideal throttle without friction or without reduced flow. It is
deduced from the calculation of the pressure changes inside an air tank 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
P2 + 0.1
When ———— b 0.5, choked flow
P1 + 0.1
293
Q = 120 x S (P1 + 0.1) ————
··································································(3)
273 + t
P2 + 0.1
When ———— > 0.5, subsonic flow
P1 + 0.1
293
Q = 240 x S (P2 + 0.1) (P1 – P2) ————
··············································(4)
273 + t
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 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 [oC]
Note) Formula for subsonic flow (4) is only applicable when the critical pressure ratio b is unknown for
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)
Power
t
P + 0.1
T
supply
Pressure
switch
S : Effective area [mm2]
Thermometer
V : Air tank capacity [dm3]
Solenoid
Control
Pressure control
valve
circuit
equipment
t : Discharging time [s]
Equipment
Ps : Pressure inside air tank
for test
before discharging [MPa]
Air tank
P : Residual pressure inside air tank
Air
Filter
Shut off
Pressure gauge
after discharging [MPa]
supply
valve
or pressure
T : Temperature inside air tank
convertor
before discharging [K]
Timer (Clock)
Pressure recorder
Fig. (2) Test circuit based on JIS B 8390
Rectifier tube on the
downstream side
)
Rectifier tube on the
upstream side
(
19
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Series VX21/22/23
Solenoid Valve Flow-rate Characteristics 3
(How to indicate flow-rate 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 flow coefficient, Cv factor 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 p0.2 bar absolute, T1 = 297 p5 K, 0.07 bar b $P b 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: How to test 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-rate 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 differential is 1 Pa. It is calculated using the following formula.
R
Av = Q ———— ····························································································(8)
$P
Av : Flow coefficient [m2]
Q : Flow rate [m3/s]
$P : Pressure differential [Pa]
R : Fluid density [kg/m3]
(3) Formula for flow rate
Described by the practical units. Also, the flow-rate characteristics are shown in Graph (2).
In the case of liquid:
$P
= 1.9 x 106Av ————
···············································································(9)
Q
G
Q : Flow rate [L/min]
Av : Flow coefficient [m2]
$P : Pressure differential [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 differential [MPa]
P1 : Upstream pressure [MPa]: $P = P1 – P2
P2 : Downstream pressure [MPa]
20
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Solenoid Valve Flow-rate Characteristics
Series VX21/22/23
Conversion of flow coefficient:
Av = 28 x 10–6 Kv = 24 x 10–6 Cv ···········································································(11)
Here,
Kv factor
3
3
2
Upstream pressure
2
P1 = 1 MPa
P1 = 0.8 MPa
1
0.9
0.8 Example 2 P1 = 0.6 MPa
0.7
0.6
P1 = 0.5 MPa
0.5
0.4
P1 = 0.4 MPa
P1 = 0.3 MPa
0.3
1
0.9
0.8
0.7
0.6
0.5
0.4
Example 1
0.3
P1 = 0.2 MPa
0.2
0.2
P1 = 0.1 MPa
0.1
0.001
0.1
0.01
0.002 0.003 0.004
0.02 0.03 0.04
Water flow rate Q0 [L/min] (When Av = 1 x 10–6 [m2])
Saturated steam flow rate Q0 [kg/h] (when Av = 1 x 10–6 [m2])
: Value of the clean water flow rate represented by m3/h which runs through a valve
at 5 to 40oC, when the pressure differential 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 60oF, when the pressure differential is 1 lbf/in2 (psi).
Value is different from Kv and Cv factors for pneumatic purpose due to different test method.
0.1
Pressure differential $P [MPa]
Graph (2) Flow-rate characteristics
Example 1)
Obtain the pressure differential 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]. Therefore, 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 40oC, then measure the
flow rate with a pressure differential of 0.075 MPa. However, the pressure differential 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
on the
upstream side
Flow
meter
2d
r 20d
Equipment
Pressure
for test
tap
6d
Restrictor on the
downstream side
r 10d
Fig. (3) Test circuit based on IEC60534-2-3, JIS B 2005
21
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Series VX21/22/23
Flow-rate Characteristics
Note) Use this graph as a guide. In the case of obtaining an accurate flow rate,
refer to pages 17 through to 21.
Downstream pressure of valve (P2) [MPa]
For Air
Upst
1.0
ream
pres
sure
0.8
of va
lve P
1
z 1.0
MPa
0.9
0.6
Subsonic
0.8
0.7
0.4
0.6
cal
Criti sure
s
pre
Sonic
0.5
0.4
0.2
0.3
0.2
0.1
0
50
100
100
150
200
300
400
600
200
350
400
200
600
250
300
400
500
800
350
ø2
400
ø3
1,000
1,000
ø4
1,200
ø5
1,400
ø7
700
700
1,000
ø8
1,300
ø10
500 700
ø10
700 1,000
Flow rate Q [L/min (ANR)]
How to read the graph
The sonic range pressure to generate a flow rate of 400 L/min (ANR) is
P1 z 0.2 MPa for a ø4 orifice and P1 z 0.58 MPa for a ø3 orifice.
For Water
30
20
ø10
ø8
ø5
ø4,
ø3
ø2
10
Flow rate Q [L/min]
ø7
5
4
3
2
1
0.1
0.001 (0.0018)
(0.0054)
0.01
(0.013)
0.05 (0.07)
Pressure differential $P = (P1 – P2) [MPa]
How to read the graph
When a water flow of 2 L/min is generated,$P z 0.013 MPa for a valve with ø3 orifice.
22
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Series VX21/22/23
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) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control
Precautions. Please download it via our website. http://www.smcworld.com
Selection
Design
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. 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.
4. 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.
5. 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.
6. When the conduit type is used as equivalent to an
IP65 enclosure, install a wiring conduit, etc.
7. 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.
2. Fluid quality
The use of a fluid that contains foreign objects 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 using tap water, since substances such as calcium and
magnesium which generate hard scale and sludge are
included and can cause the valve to malfunction, install water
softening equipment and a filter (strainer) right before the
valve to remove these substances.
3. Air quality
1) Use clean air.
Do not use compressed air that contains chemicals,
synthetic oils including organic solvents, salt or corrosive
gases, etc., as it can cause damage or malfunction.
2) Install an air filter.
Install an air filter close to the valve on the upstream side. A
filtration degree of 5 µm or less should be selected.
3) Install an aftercooler or air dryer, etc.
Compressed air that contains excessive drainage may
cause malfunction of valves and other pneumatic equipment. To prevent this, install an aftercooler or air dryer, etc.
4) If excessive carbon powder is generated, eliminate it by
installing a mist separator on 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 Best Pneumatics No.5 for further details on
compressed air quality.
4. Ambient environment
Selection
Warning
1. Fluid
1) Type of fluid
Before using a fluid, check whether it is compatible with the
materials of each model by referring to the fluids listed in
this catalog. Use a fluid with a kinematic viscosity of 50
mm2/s or less. If there is something you do not know, please
contact SMC.
2) Flammable 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) Depending on water quality, a brass body can cause
corrosion and internal leakage may occur. If such abnormalities occur, exchange the product for a stainless steel
body.
5) Use an oil-free specification when any oily particle must not
enter the passage.
6) 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.
Use within the operable ambient temperature range. Check
the compatibility between the product’s composition materials
and the ambient atmosphere. Be certain that the fluid used
does not touch the external surface of the product.
5. Countermeasures against static electricity
Take measures to prevent static electricity since some fluids
can cause static electricity.
6. 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 warming by a heater,
etc., be careful not to expose the coil portion to a heater.
Installation of a 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.
23
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Series VX21/22/23
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) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control
Precautions. Please download it via our website. http://www.smcworld.com
Selection
Mounting
Warning
Warning
7. Fluid quality
#
3. Mount a valve with its coil position upwards, not
downwards.
Water
The use of a fluid that contains foreign objects 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 50 to 100 mesh.
When using tap water, since substances such as calcium and
magnesium which generate hard scale and sludge are
included and can cause the valve to malfunction, install water
softening equipment and a filter (strainer) right before the valve
to remove these substances.
#
Air
Use ordinary compressed air where a filter of 5 µm or less is
provided on the inlet side piping. (Except dry air)
#
Oil
Generally, FKM is used as seal material, as it is resistant to oil.
The resistance of the sealing material may deteriorate depending on the type of oil, manufacturer, or additives. Check the
resistance before using.
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.
Piping
Caution
1. Leakage voltage
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.
Switching element
OFF
Power supply
When mounting a valve with its coil positioned downwards,
foreign objects in the fluid will adhere to the iron core leading
to a malfunction. Especially for strict leakage control, such as
with vacuum applications and non-leak specifications, the coil
must be positioned upwards.
C
Leakage voltage
R
Valve
Leakage current
AC/Class B built-in full-wave rectifier coil: 10% or less of
rated voltage
DC coil: 2% or less of rated voltage
2. Selecting model
Material depends on fluid. Select optimal models for the fluid.
3. When the fluid is oil.
The kinematic viscosity must not exceed 50 mm2/s.
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.
Warning
1. During use, deterioration of the tube or damage to
the fittings could cause tubes to come loose from
their fittings and thrash about.
To prevent uncontrolled tube movement, install protective
covers or fasten tubes securely in place.
2. For piping the tube, fix the product securely using the
mounting holes so that the product is not in the air.
Caution
1. Preparation before piping
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. Avoid connecting ground lines to piping, as this
may cause electric corrosion of the system.
3. 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 thread
Rc1/8
Rc1/4
Rc3/8
Rc1/2
Proper tightening torque (N·m)
7 to 9
12 to 14
22 to 24
28 to 30
4. Connection of piping to products
When connecting piping to a product, refer to its operation
manual to avoid mistakes regarding the supply port, etc.
5. In applications such as vacuum and non-leak specifications, use caution specifically against the
contamination of foreign objects or airtightness of
the fittings.
24
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Series VX21/22/23
Specific Product Precautions 3
Be sure to read before handling.
Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control
Precautions. Please download it via our website. http://www.smcworld.com
Operating Environment
Recommended Piping Conditions
1. When connecting tubes using one-touch fittings,
provide some spare tube length shown in Fig. 1,
recommended piping configuration.
Also, do not apply external force to the fittings when binding
tubes with bands, etc. (see Fig. 2.)
Straight
portion
Mounting
pitch A
Fig. 1 Recommended piping configuration
Warning
1. Do not use in an atmosphere having corrosive
gases, chemicals, sea water, 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.
Unit: mm
Maintenance
Mounting pitch A
Tube
size
Nylon tube
ø1/8"
ø6
ø1/4"
ø8
ø10
ø12
44 or more
84 or more
89 or more
112 or more
140 or more
168 or more
Straight
Soft nylon tube Polyurethane tube portion length
29 or more
39 or more
56 or more
58 or more
70 or more
82 or more
25 or more
39 or more
57 or more
52 or more
69 or more
88 or more
16 or more
30 or more
32 or more
40 or more
50 or more
60 or more
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) Remove 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.
Recommended
Unacceptable
Fig. 2 Binding tubes with bands
Wiring
Caution
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. 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.
4. When a surge from the solenoid affects the electrical circuitry, install a surge voltage suppressor,
etc., in parallel with the solenoid. 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 SMC.)
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 drainage from an air filter periodically.
Operating Precautions
Warning
1. If there is a possibility of reverse pressure being
applied to the valve, take countermeasures such as
mounting a check valve on the downstream side of
the valve.
2. When problems are caused by a water hammer,
install water hammer relief equipment (accumulator,
etc.), or use an SMC water hammer relief valve
(Series VXR). For details, please consult with SMC.
25
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
Specific Product Precautions 4
Be sure to read before handling.
Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control
Precautions. Please download it via our website. http://www.smcworld.com
Electrical Connections
Caution
Grommet
Conduit terminal
Class B coil: AWG20 Outside insulator diameter of 2.5 mm
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.
:
Terminal cover
@
DC
100 VAC
200 VAC
Other AC
– mark
Lead wire color
:
@
Black
Red
Blue
Blue
Red
Red
Gray
Gray
Rated voltage
2
-
1
+
+ mark
Round head combination screw
M3 Tightening torque of
0.5 to 0.6 N·m
A
There is no polarity.
Round head
combination screw
DIN terminal
M3 Tightening torque of
0.5 to 0.6 N·m
Since internal connections are shown below for the DIN
terminal, make connections to the power supply accordingly.
+
2
1
—
Conduit terminal
G1/2
Tightening
torque of
0.5 to 0.6 N·m
View A-A
(Internal connection diagram)
Conduit
3
1: +
(–)
A
2: –
(+)
When used as an IP65 equivalent, use seal to install the
wiring conduit. Also, use the tightening torque below for the
conduit.
Class B coil: AWG20 Outside insulator diameter of 2.5 mm
Lead wire
Terminal no.
DIN terminal
1
+ (–)
2
– (+)
:
There is no polarity.
• Use a heavy-duty cord with an outside cable diameter of ø6 to 12 mm.
• Use the tightening torques below for each section.
Connector
Binding head screw with flange
Tightening torque of 0.5 to 0.6 N·m
@
Seal
Wiring conduit
(Connection G1/2 Tightening torque of 0.5 to 0.6 N m)
•
Rated voltage
Gasket
Washer
Compatible cable Note)
(Outside cable diameter of
ø6 to 12 mm)
Rubber seal
Binding head screw
Tightening torque of 0.5 to 0.6 N·m
Note) For an outside cable diameter of ø9 to 12 mm, remove the internal
parts of the rubber seal before using.
DC
100 VAC
200 VAC
Other AC
Lead wire color
@
:
Red
Black
Blue
Blue
Red
Red
Gray
Gray
There is no polarity.
(There is polarity for power-saving type.)
Description
Seal
Part no.
VCW20-15-6
Note) Please order separately.
26
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Series VX21/22/23
Specific Product Precautions 5
Be sure to read before handling.
Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products”
(M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control
Precautions. Please download it via our website. http://www.smcworld.com
Electrical Circuits
Caution
[DC circuit]
Grommet, Faston terminal
Grommet, DIN terminal,
Conduit terminal, Conduit
Varistor
1 (+, –)
1 (+, –)
SOL.
SOL.
2 (–, +)
2 (–, +)
Without electrical option
With surge voltage suppressor
DIN terminal, Conduit terminal
Varistor
1 (+, –)
SOL.
2 (–, +)
Light
With light/surge voltage suppressor
[AC circuit]
For AC (Class B), the standard product is equipped with surge voltage
suppressor.
Grommet, DIN terminal,
Conduit terminal, Conduit
Varistor
1
Rectifier
element
DIN terminal, Conduit terminal
Varistor
1
SOL.
Rectifier
element
SOL.
2
2
Light
Without electrical option
With light
One-touch Fitting
Caution
For information on handling one-touch fittings and
appropriate tubing, refer to page 25 and the KQ2
series one-touch fittings in Best Pneumatics No. 6.
The KQ2 series information can be downloaded from
the following SMC website, http://www.smcworld.com
27
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
Safety Instructions
Caution:
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:
Warning indicates a hazard with a medium level of
risk which, if not avoided, could result in death or
serious injury.
Danger :
Danger indicates a hazard with a high level of risk
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.
which, if not avoided, will result in death or serious
injury.
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 product and
machinery/equipment until safety is confirmed.
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.
Caution
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
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.
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
http://www.smcworld.com
© 2011 SMC Corporation All Rights Reserved
Specifications are subject to change without prior notice
D-DN
1st printing PR printing PR 7150SZ Printed in Japan.
and any obligation on the part of the manufacturer.
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com
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