VDW EU

VDW EU
Compact Direct Operated
2/3 Port Solenoid Valve for Water and Air
Series
VDW
VDW10/20/30: 2 Port, VDW200/300: 3 Port
VX
VN
VQ
VDW
VC
LV
PA
Compact/Light weight (compared to series VX)
Single valve volume: Reduced 75% (VDW20)
100g: Reduced approx. 50% (for orifice size equivalent to ø2)
4.4-1
Compact Direct Operated 2/3 Port Solenoid Valve
for Water and Air
SeriesVDW
Compact (compared to series VX)
Single valve volume: Reduced 75% (VDW20)
Manifold length: Reduced 18% (VDW30, 7 stations)
Light weight (compared series VX)
100g: Reduced approx. 50% (for orifice size equivalent to ø2)
Improved durability (nearly twice the life of the previous series)
The use of a unique magnetic material reduces the operating resistance of moving parts, while
improving service life, wear and corrosion resistance.
Clip type
Quick change coils
Clip design makes coil
replacement easy (2 port)
Improved corrosion resistance
Special material introduced
Threaded assembly
Simplifies maintenance
Brass/Stainless steel
manifolds added to
series (2 port)
High flow rate: Nl/min
29.50 to 431.86 (2 port)
Universal porting
VDW200/300 (3 port)
Bottom mounting threads
Mounting bracket also available
Series of compact designs
2 port
ø17
ø17
VDW10
4.4-2
3 port
ø28
ø28
ø28
ø28
ø20.5
ø20.5
VDW30
VDW200
ø20.5
ø20.5
VDW20
VDW300
Compact Direct Operated
2 Port Solenoid Valve for Water and Air
Series
VDW10/20/30
How to Order Valves (Single Type)
VD W 2 1
1 G
2
Q
01
For water, air and vacuum
Option
Series
1
2
3
10
20
30
Nil
F
None
Foot type bracket
Note) Foot brackets are packed with valves.
Materials and insulation type
Valve type
Symbol Body material Seal material Coil insulation
NBR
Nil
Brass
FKM
A
Class B
NBR
G
Stainless
FKM
H
steel
FKM
L Note)
N.C.
OUT
(2)
1
(1)
IN
Note) For pure water: Armature assembly is a
corrosion resistant construction.
Voltage
1
2
3
4
5
6
Order
Made
F
N
VDW
VC
LV
Contact SMC regarding other voltages
Protective class
Class II (Mark:
Class III (Mark:
Rc
G
NPT
Nil
VN
VQ
Thread type
100VAC (50/60Hz)
200VAC (50/60Hz)
110VAC (50/60Hz)
220VAC (50/60Hz)
24VDC
12VDC
VX
Port size
)........ Over 50V
)........ 50V and less
Electrical entry
Symbol
Port size
M5
01
02
M5
1/8 (6A)
1/4 (8A)
10
—
—
Series
20
—
PA
30
—
G – Grommet
Orifice size
Symbol
1
2
1
2
3
2
3
4
Orifice size
mm
ø1
ø1.6
ø1.6
ø2.3
ø3.2
ø2
ø3
ø4
Series
10
20
30
4.4-3
Series
VDW10/20/30
Standard Specifications
Valve specifications
Valve construction
Direct operated poppet
Fluid Note 2)
Water (except waste water or agricultural water), Air, Low vacuum
Withstand pressure MPa
2.0
Ambient temperature °C
–10 to 50
Fluid temperature °C
Location without corrosive or explosive gases
Valve leakage cm3/min
0 (with water pressure)
Mounting orientation
Vibration/Impact m/s2
Coil
Specifications
1 to 50 (with no freezing)
Environment
Unrestricted
Note 4)
30/150
Rated voltage
24VDC, 12VDC
Allowable voltage fluctuation %
±10% of rated voltage
Coil insulation type
Enclosure
Class B
Note 5)
Dust proof (equivalent to IP40)
Power consumption W Note 3)
2.5 (VDW10), 3 (VDW20/30)
Note 1) Consult SMC when used under conditions which may cause condensation on the exterior of the product.
Note 2) When used with pure water, select "L" (stainless steel, FKM) for the material type.
Note 3) Since AC coil specifications include a rectifying device, there is no difference in power consumption for starting and
holding.
In case of 110/220VAC, VDW10 is 3W and VDW20/30 is 3.5W.
Note 4) Vibration resistance … No malfunction when tested with one sweep of 5 to 200Hz in the axial direction and at a
right angle to the armature, in both energized and deenergized states.
Impact resistance … No malfunction when tested with a drop tester in the axial direction and at a right angle to
the armature, one time each in energized and deenergized states
Note 5) Consult SMC regarding drip-proof specifications (equivalent to IP54).
Characteristic Specifications
Model
Port size
VDW10
M5
VDW20
M5
1/8 (6A)
VDW30
1/8 (6A)
1/4 (8A)
Orifice
size
mm
Maximum operating
Operating Effective area
pressure
pressure
mm²
differential MPa Note 1)
range
Pressure port 1 Pressure port 2 MPa Note 2) (Nl/min)
ø1
0.9
0.4
0.54 (29.50)
ø1.6
0.4
0.2
1.2 (68.70)
ø1.6
0.7
0.2
1.2 (68.70)
ø2.3
0.4
0.1
ø3.2
0.2
0.05
ø2
0.8
0.2
2.8 (157.04)
ø3
0.4
0.1
5.0 (274.82)
ø4
0.2
0.05
8.0 (431.86)
0 to 1.0
3.2 (176.67)
Weight
kg
0.08
0.1
5.8 (29.50)
1/8: 0.23
1/4: 0.26
Note 1) The maximum operating pressure differential changes depending on the flow direction of the fluid. Refer to page
4.4-20 for details.
Note 2) For low vacuum specifications, the operating pressure range is 1Torr (1.33 x 10² Pa) to 1.0MPa.
Consult SMC if used below 1Torr (1.33 x 10² Pa).
4.4-4
Compact Direct Operated
2 Port Solenoid Valve for Water and Air
Series VDW10/20/30
Construction
VDW11
VDW21
VDW31
VX
VN
VQ
Parts list
Description
No.
Material
Standard
Optional
Brass
Stainless steel
Stainless steel
—
1
2
3
Body
4
Amature assembly
5
6
7
8
O-ring (body)
NBR
FKM
Return spring
Stainless steel
—
SPCE
—
Stainless steel
—
Tube assembly
Coil assembly
Cover
Clip
VDW
VC
—
—
VDW11/21:
VDW11/21:
Stainless steel, PPS, Stainless steel, PPS,
NBR
FKM
VDW31:
VDW31:
Stainless steel, NBR Stainless steel, FKM
4.4-5
LV
PA
Series
VDW10/20/30
Dimensions
VDW21
15
11
VDW11
2-M2.5
Thread depth 3.5
2-M3
Thread depth 5
ø20.5
56
48
ø17
6
1
5
5
8
1
M5
1 (IN) port
M5
2 (OUT) port
M5, 1/8
2 (OUT) port
20
M5, 1/8
1 (IN) port
22
Lead wire
l approx. 300
27
20
27
21
Lead wire
l approx. 300
Rectifying device
AC type
2– ø3.2
14
Rectifying device
20
20
27
2–ø3.5
AC type
VDW31
12.8
Dimensions inside ( ) are for port size 1/8.
2-M4
Thread depth 6
36 (27.6)
1
1
SMC
SMC
40
30
Lead wire
l approx. 300
Bracket assembly part no.
Rectifying device
AC type
Types
4–ø5
25
34
10, 20
VDW 2 0
ø28
Series
1
2
Type
66 (62.5)
6
8.5 (6.3)
4.4-6
1/8, 1/4
1 (IN) port
10
20
30
VCW20
1/8, 1/4
2 (OUT) port
15A 1
12
01A
Compact Direct Operated
2 Port Solenoid Valve for Water and Air
Series VDW10/20/30
How to Order Manifolds
VV2DW 2
How to Order Manifold Assemblies (Example)
05 01
Series
1
2
3
Enter the valve and option models to be mounted
under the manifold base part number.
<Example>
VV2DW2-0501 ……... 1 set Manifold part no.
Option
10
20
30
None
With bracket
Nil
F
VDW23-5G-2-Q ……... 5 sets Valve part no.
(Stations 1 to 5)
Note) Type 30 is available
only with bracket.
Materials
Enter together in
order, counting
from station 1
on the D side.
Thread type
Symbol Manifold material Seal material
Nil
NBR
Brass
A
FKM
G
NBR
Stainless steel
H
FKM
Rc
G
NPT
Nil
F
N
5
OUT port size
Stations
02
:
10
2 stations
:
10 stations
U
e
sid
4
3
Series
Port
Symbol
size
10 20 30
M5
M5
—
1/8 (6A) — 01
1/4 (8A) — — 02
2
D
e1
sid
Note) IN port sizes are as follows.
10: 1/8 (6A)
20: 1/4 (8A)
30: 3/8 (10A)
How to Order Valves (for Manifold)
VDW 2 3
5 G
Q
2
Series
1
2
3
Symbol Body material Seal material Coil insulation
Nil
NBR
Brass
A
FKM
Class B
G
NBR
Stainless
FKM
H
steel
FKM
L Note)
N.C. for Manifold
Order
Made
100VAC (50/60Hz)
200VAC (50/60Hz)
110VAC (50/60Hz)
220VAC (50/60Hz)
24VDC
12VDC
VDW
VC
LV
Orifice size
Electrical entry
G
Grommet
Contact SMC regarding other voltages
Protective class
Class II (Mark:
Class III (Mark:
VQ
Note) For pure water: The armature is a corrosion
resistant construction.
Voltage
1
2
3
4
5
6
VN
Materials and insulation type
10
20
30
Valve type
3
VX
)........ Over 50V
)........ 50V and less
Symbol
Orifice size
mm
1
2
1
2
3
2
3
4
ø1
ø1.6
ø1.6
ø2.3
ø3.2
ø2
ø3
ø4
PA
Series
10
20
30
Manifold Options
Blanking plate assembly
Types
10, 20
Type
VVDW 2 0
Series
1
2
10
20
3A
Materials
Symbol Plate material Seal material
G
NBR
Stainless
steel
H
FKM
∗ Plate material is stainless steel only.
30
VVCW20
3A
Materials
Symbol Plate material Seal material
Nil
NBR
Brass
A
FKM
G
NBR
Stainless
steel
H
FKM
4.4-7
Series
VDW10/20/30
Dimensions
VV2DW1
4-M3
11.5
11.5
7.7
7.7
(16.3)
∗ When not equipped with bracket,
the M3 threads at both ends (4
positions) can be used for other
purposes.
5
22.5
VDW13-*G-*
40
VDW13-*G-*
VDW13-*G-*
7.5
VDW13-*G-*
19.6
26.5
13
(4.4)
1
P = 17.5
16.3
34
(2.8)
8.8
2.8
13.4
9.4
7
1.
R
30
1.5
8.1
3.4
P = 17.5
Approx. 300
7.7
24.4
61
n-M5
(OUT port)
L1
(1.5)
8.8
2-∗1/8 (IN port)
(∗: Thread type)
L2
L3
Stations
1
2
3
4
5
U side
n
16
(19.6)
D side
L dimensions
(mm)
n (stations)
Dimensions
2
3
4
5
6
7
8
9
10
L1
35
52.5
70
87.5
105
122.5
140
157.5
175
L2
45
62.5
80
97.5
115
132.5
150
167.5
185
L3
52
69.5
87
104.5
122
139.5
157
174.5
192
2 stns. x 1
3 stns. x 1
2 stns. x 2
2 stns. + 3 stns.
3 stns. x 2
3 stns. x 3
2 stns. x 2 + 3 stns. x 2
Manifold composition
Note) Manifold bases are composed by connecting 2 station and 3 station bases.
Refer to pages 4.4-11 and 4.4-12 regarding manifold additions.
4.4-8
2 stns. x 2 + 3 stns. 2 stns. + 3 stns. x 2
Compact Direct Operated
2 Port Solenoid Valve for Water and Air
Series VDW10/20/30
Dimensions
32
54
6
10
24
46
10
9.5
11
11
6
9.5
( 19.5)
VV2DW2
4-M4
∗ When not equipped with bracket, the M3
threads at both ends (4 positions) can be
used for other purposes.
VDW23-*G-*
VDW23-*G-*
VDW23-*G-*
21
18.5
11
4.5
n-M5
n-∗1/8
(OUT port)
P = 22
1.5
11
31.5
68
VDW23-*G-*
4.6
11 Approx. 300
1
VX
33
24
19.5
16
(19.5)
1
VN
.3
R2
L1
4.5
VQ
2-∗1/4 (IN port)
9
VDW
(∗: Thread type)
L2
VC
L3
D side
Stations
1
2
3
4
n
5
LV
U side
15
( 25.5)
PA
L dimensions
(mm)
n (stations)
Dimensions
2
3
4
5
6
7
8
9
10
L1
44
66
88
110
132
154
176
198
220
L2
53
75
97
119
141
163
185
207
229
L3
62
84
106
128
150
172
194
216
238
2 stns. x 1
3 stns. x 1
2 stns. x 2
2 stns. + 3 stns.
3 stns. x 2
3 stns. x 3
2 stns. x 2 + 3 stns. x 2
Manifold composition
2 stns. x 2 + 3 stns. 2 stns. + 3 stns. x 2
Note) Manifold bases are composed by connecting 2 station and 3 station bases.
Refer to pages 4.4-11 and 4.4-12 regarding manifold additions.
4.4-9
Series
VDW10/20/30
Dimensions
VV2DW3
VDW33-*G-*
VDW33-*G-*
VDW33-*G-*
17.25
5.5
n-∗1/8
n-∗1/4
(OUT port)
P = 34.5
17.25
2
16
21
34
83
VDW33-*G-*
5
.2
R2
L1
L2
L3
Stations
1
2
3
4
5
49
5.5
10.5
2-∗3/8 (IN port)
(∗: Thread type)
U side
n
23
(26.5)
D side
24.5
20
(24.5)
28
38
4.5
14.7 Approx. 300
2.5
L dimensions
Dimensions
(mm)
n (stations)
2
3
4
5
6
7
8
9
10
L1
69
103.5
138
172.5
207
241.5
276
310.5
345
L2
81
115.5
150
184.5
219
253.5
288
322.5
357
L3
93
127.5
162
196.5
231
265.5
300
334.5
369
Manifold composition
2 stns. x 1
3 stns. x 1
2 stns. x 2
2 stns. + 3 stns.
3 stns. x 2
3 stns. x 3
2 stns. x 2 + 3 stns. x 2
Note) Manifold bases are composed by connecting 2 station and 3 station bases.
Refer to pages 4.4-11 and 4.4-12 regarding manifold additions.
4.4-10
2 stns. x 2 + 3 stns. 2 stns. + 3 stns. x 2
Compact Direct Operated
2 Port Solenoid Valve for Water and Air
Series VDW10/20/30
Manifold Exploded View
Bracket assembly
2 station manifold base
Passage pipe assembly
3 station manifold base
Bracket assembly
Connecting
plate assembly
Connecting
plate assembly
VX
VN
∗ Figure shows VV2DW2.
VQ
VDW
Manifold additions
VC
1 Install a passage pipe assembly in between the manifold bases to be added.
LV
2 Connect the respective manifold bases with a connecting plate assembly. (Tightening torque: 0.9±0.1N⋅ m)
PA
3 Attach brackets to the manifold bases. {when equipped with brackets} (Tightening torque: 0.9±0.1N⋅ m)
Note) Manifold station additions can be made in units of 2 or 3 stations.
Order one set each of manifold base, connection plate assembly and passage pipe assembly.
4.4-11
Series
VDW10/20/30
<Connecting plate assembly>
<Manifold bases>
Types
Note) Two sets of connecting plate and mounting screws.
10, 20
VVDW 2 0
2 C
1
Types
01
10, 20
VVDW 2 0
4A
Series
1
2
10
20
Series
Thread type
Rc
G
NPT
Nil
Material
F
N
Brass
Stainless steel
C
S
OUT port size
Stations
Symbol
M5
01
For 2 stations
For 3 stations
1
2
Port size
M5
1/8 (6A)
1
2
Type
10
20
30
VVCW20-4A
∗ Type 10 is M5 only.
Type
30
VVCW20
2 C
1
<Passage pipe assembly>
01
Types
VVDW 2 0
Material
Brass
Stainless steel
C
S
Thread type
Nil
F
N
Stations
1
2
10, 20
For 2 stations
For 3 stations
Rc
G
NPT
6A
Materials
Series
1
2
Symbol Pipe material Seal material
Nil
NBR
Brass
A
FKM
G
NBR
Stainless
steel
H
FKM
10
20
OUT port size
Symbol
01
02
Port size
1/8 (6A)
1/4 (8A)
Type
30
VVCW20
6A
Materials
<Bracket assembly>
Note) Consists of a set for the D and U sides.
Types
10, 20
VVDW 2 0
Series
1
2
Type
10
20
30
VVCW20-5A
4.4-12
5A
Symbol Pipe material Seal material
Nil
NBR
Brass
A
FKM
G
NBR
Stainless
steel
H
FKM
Compact Direct Operated
3 Port Solenoid Valve for Water and Air
Series
VDW200/300
How to Order Valves (Single Type)
VD W 2 50
5 G
2
Q
01
For water,
air and vacuum
Series
2
3
Option
200
300
Nil
F
None
Foot type bracket
Note) Foot brackets are packed with valves.
Materials and insulation type
Valve type
Symbol Body material Seal material Coil insulation
Nil
NBR
Brass
A
FKM
Class B
G
NBR
Stainless
H
FKM
steel
L Note)
FKM
C.O.
N.C. N.O.
(2) (3)
50
(1)
IN
Note) For pure water: The armature assembly is a
corrosion resistant construction.
Voltage
1
2
3
4
5
6
Order
Made
F
N
VDW
VC
LV
Port size
Contact SMC regarding other voltages
Protective class
Class II (Mark:
Class III (Mark:
Rc
G
NPT
Nil
VN
VQ
Thread type
100VAC (50/60Hz)
200VAC (50/60Hz)
110VAC (50/60Hz)
220VAC (50/60Hz)
24VDC
12VDC
VX
)........ Over 50V
)........ 50V and less
Electrical entry
Symbol
Port size
M5
01
02
M5
1/8 (6A)
1/4 (8A)
PA
Series
200
—
300
—
G – Grommet
Orifice size
Symbol
1
2
2
3
4
N.C.
Orifice size
mm
ø1
ø1.6
ø2
ø3
ø4
N.O.
Orifice size
mm
Series
ø1
200
ø1.8
300
4.4-13
Series
VDW200/300
Standard Specifications
Direct operated poppet
Valve specifications
Valve construction
Fluid Note 2)
Water (except waste water or agricultural water), Air, Low vacuum
Withstand pressure MPa
2.0
Ambient temperature °C
–10 to 50
1 to 50 (with no freezing)
Fluid temperature °C
Location without corrosive or explosive gases
Environment
0 (with water pressure)
Valve leakage cm3/min
Unrestricted
Mounting orientation
Coil
specifications
Vibration/Impact m/s2 Note 4)
30/150
24VDC, 12VDC
Rated voltage
±10% of rated voltage
Allowable voltage fluctuation %
Class B
Coil insulation type
Enclosure Note 5)
Dust proof (equivalent to IP40)
Power consumption W Note 3)
3
Note 1) Consult SMC when used under conditions which may cause condensation on the exterior of the product.
Note 2) When used with pure water, select "L" (stainless steel, FKM) for the material type.
Note 3) Since AC coil specifications include a rectifying device, there is no difference in power consumption for starting
and holding.
3.5W in case of 110/220VAC.
Note 4) Vibration resistance …No malfunction when tested with one sweep of 5 to 200Hz in the axial direction and at a
right angle to the armature, in both energized and deenergized states.
Impact resistance ….. No malfunction when tested with a drop tester in the axial direction and at a right angle to
the armature, one time each in energized and deenergized states.
Note 5) Consult SMC regarding drip-proof specifications (equivalent to IP54) .
Characteristic Specifications
Model
Port size
VDW200
M5
1/8 (6A)
VDW300
1/8 (6A)
1/4 (8A)
Orifice
size
mm
ø1
Maximum operating
pressure
differential MPa Note 3)
Operating Effective area
pressure
mm²
range
(Nl/min)
Note 2)
Note 1)
Pressure port 1 Pressure ports 2, 3 MPa Note 4)
0.3
0.9
0.54 (29.50)
ø1.6
0.7
0.1
ø2
0.8
0.2
ø3
0.4
0.1
5.0 (274.82)
ø4
0.2
0.05
8.0 (431.86)
1.2 (68.70)
0 to 1.0
0.12
2.8 (157.04)
Note 1) Effective area is for the case when IN is normally closed (N.C.).
Note 2) Indicates the maximum operating pressure differential of pressure ports 2 and 3.
Note 3) The maximum operating pressure differential changes depending on the flow direction of the fluid.
Refer to page 4.4-20 for details.
Note 4) For low vacuum specifications, the operating pressure range is 1Torr (1.33 x 10²Pa) to 1.0MPa.
Consult SMC if used below 1Torr (1.33 x 10²Pa).
4.4-14
Weight
kg
1/8: 0.27
1/4: 0.30
Compact Direct Operated
2 Port Solenoid Valve for Water and Air
Series VDW10/20/30
Construction
VDW250
VDW350
VX
VN
Parts list
Description
No.
Standard
Optional
Brass
Stainless steel
Tube assembly
Stainless steel
—
Coil assembly
—
VDW250:
Stainless steel, PPS,
NBR
—
VDW250:
Stainless steel, PPS,
FKM
VDW350:
Stainless steel, NBR
VDW350:
Stainless steel, FKM
O-ring (body)
NBR
FKM
Return spring
Stainless steel
—
1
2
3
Body
4
Amature assembly
5
6
7
8
9
10
11
VQ
Material
Cover
SPCE
—
Socket
Brass
Stainless steel
O-ring
NBR
FKM
Plate
SPCC
—
Stainless steel
—
Wave washer
4.4-15
VDW
VC
LV
PA
Series
VDW200/300
Dimensions
VDW350
12.8
VDW250
15
2-M4
Thread depth 6
ø28
2-M3
Thread depth 5
ø20.5
3
8.5 (6.3)
71
86 (82.5)
3
5
6
8
1
M5, 1/8
2 (N.C.) port
22
36 (27.6)
Dimensions inside ( ) are for port size 1/8.
Lead wire
l approx. 300
2–ø3.5
20
27
1
1
SMC
SMC
Rectifying device
AC type
40
30
27
20
Lead wire
l approx. 300
1/8, 1/4
1 (IN) port
1/8, 1/4
2 (N.C.) port
M5, 1/8
1 (IN) port
M5, 1/8
3 (N.O.) port
Rectifying device
AC type
4–ø5
25
34
Bracket part no.
Type
200
VDW20
Type
300
VCW20
4.4-16
15A 1
12
01A
1/8, 1/4
3 (N.O.) port
Series VDW
Model Selection
Downstream pressure of valve (P2) MPa
For air
Explanation of Terminology
Upstr
eam
press
ure o
f
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.05
VDW10ø1
VDW10
20 ø1.6
VDW20ø2.3
0.1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
10
20
30
50
50
VDW20ø3.2
VDW30ø2
VDW30ø3
VDW30ø4
100
100
1. Maximum operating pressure differential
Sonic
50
100
200
S = 1.2
125
250
400
S = 0.54
60
300
500
S = 3.2
350
S = 5.8
600
S = 2.8
50
100
100
150
200
200
300
200
300
400
500
This indicates the maximum pressure differential (upstream
and downstream pressure differential) which can be allowed
for operation with the valve closed or open. When the
downstream pressure is 0MPa, this becomes the maximum
operating pressure.
2. Maximum operating pressure
40
300
Pressure Terminology
= 1.0
MPa
onic
Subs
al
Criticure
press
75
150
200
valve
P₁
250
400
600
300
500
700
800
600
900
S = 5.0
S = 8.0
Flow rate Q l/min (ANR)
Viewing The sonic range pressure to generate a flow rate of 300l/min (ANR)
the graph for orifice ø2.3 (VDW20) is P1 approx. 0.77MPa,
for orifice ø3 (VDW30) is P1 approx. 0.45MPa,
for orifice ø4 (VDW30) is P1 approx. 0.24MPa.
This indicates the limit of pressure that can be applied inside
the pipelines. (line pressure)
(The pressure differential of the solenoid valve unit must be no
more than the maximum operating pressure differential.)
3. Withstand pressure
The pressure which must be withstood without a drop in
performance after returning to the operating pressure range.
(the value under the prescribed conditions)
Electrical Terminology
1. Surge voltage
How to find the flow rate for air
A high voltage which is momentarily generated in the shut-off unit
by shutting off the power.
1. For subsonic range
Where P1 + 0.1013 = (1 to 1.8941) (P2 + 0.1013)
• Formula based on Cv factor
Q = 4073.4⋅Cv⋅ ∆P (P2 + 0.1013) … l/min (ANR)
• Formula based on effective area
Q = 226.3⋅S⋅ ∆P (P2 + 0.1013) …… l/min (ANR)
2. For sonic range
Where P1 + 0.1013≥1.8941 (P2 + 0.1013)
• Formula based on Cv factor
Q = 1972.8⋅ Cv⋅ (P1 + 0.1013) … l/min (ANR)
• Formula based on effective area
Q = 109.6⋅S⋅ (P1 + 0.1013) ….… l/min (ANR)
Other
VX
1. Materials
NBR: Nitrile rubber
FKM: Fluoro rubber – Trade names: Viton®, Dai-el, etc.
VN
VQ
VDW
VC
For water
Flow rate Ql /min
100
LV
49
0.43
V=
4 C 0.3 0.28
ø
=
0
W3 CV V =
.18
VD ø3.2 ø3 C V = 0 6
0
.1
0
C
W2 DW3 ø2.3 V = 0
D
V V
C
0
W2 ø2
VD W30
7
0.0
VD
V=
.6 C
10 ø1
W 20
3
VD
0.0
V=
1C
0ø
1
W
VD
10
5.0
PA
1.0
0.1
0.001
0.01
0.1
1
Pressure differential ∆P = (P₁ – P₂) MPa
10
Viewing To generate a water flow of 4l/min at a differential pressure of
the graph 0.1MPa, an effective area with Cv factor 0.28 (VDW30ø3) or
more is required.
How to find the flow rate for water
• Formula based on Cv factor
Q = 14.2⋅ Cv⋅ 10.2⋅ ∆P … l/min
• Formula based on effective area (Smm²)
Q = 0.8⋅ S⋅ 10.2⋅ ∆P …… l/min
Q: Flow rate (l/min), ∆P: Pressure differential (P1—P2), P1: Upstream pressure (MPa)
P2: Downstream pressure (MPa), S: Effective area (mm²), Cv: Cv factor
4.4-17
Series
VDW
2/3 Port Solenoid Valve for Fluid Control
Be sure to read before handling.
Wiring
Operating Environment
1. As a rule, use electrical wire of 0.5 to
1.25mm² or more.
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 of a DC power supply where
emphasis 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.
1. Do not use valves in atmospheres of corrosive
gases, chemicals, salt water, water or steam, or
where there is direct contact with same.
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.
Caution
Warning
Maintenance
Electrical Connections
Warning
Caution
1. Perform maintenance in accordance with the
procedures in the instruction manual.
1
Improper handling can cause damage or malfunction of equipment and devices, etc.
2. Demounting of the product
2
Lead wire color
Rated voltage
3. Low frequency operation
DC
Black
∗ DC does not have polarity.
Electrical Circuits
Caution
1 (+)
SOL.
4.4-18
Red
Switch valves at least once every 30 days to prevent
malfunction. In addition, perform maintenance inspections once
every six months to ensure optimum performance.
Caution
1. Filters and strainers
DC circuit
2 (–)
1. Shut off the fluid supply and release the fluid pressure in the
system.
2. Shut off the power supply.
3. Demount the product.
1. Be careful regarding clogging of filters and strainers.
2. Replace filter elements after one year of use, or earlier if the
amount of pressure drop reaches 0.1MPa.
3. Clean strainers when the amount of pressure drop reaches
0.1MPa.
4. Flush drainage from filters periodically.
2. Storage
In case of long term (approx. one month or more) storage after
use with water, first thoroughly remove all moisture to prevent
rust and deterioration of rubber materials, etc.
Series
VDW/ Specific Product Precautions 1
Be sure to read before handling.
Replacement of the Solenoid Coil
Caution
2 port valve
3 port valve
Socket
Flat head screw driver
1
Tube assembly
O-ring
Clip
Plate
Cover
Push the clip in direction (1) with
Wave washer
a flat head screw driver, etc.,
and remove it from the tube
assembly groove.
Cover
2
Remove the cover in direction (2),
and replace the coil assembly.
Cover
Note
In case of type 300, the cover
alone cannot be removed because
it is integrated with the coil
assembly.
Coil assembly
Note
In case of types 10 and 30, the
cover alone cannot be removed
because it is integrated with the
coil assembly.
Fixed armature threads
VX
Coil assembly
VN
VQ
VDW
VC
LV
After removing the socket with a wrench, etc., lift off the plate, wave
washer and cover, and replace the coil assembly. After replacing the
coil, first tighten the socket by hand while holding down the plate and
wave washer, and then tighten it further with a torque of 0.8 to 1N⋅ m .
Tube assembly groove
3
Center of clip
After replacing the coil, insert the
clip into the tube assembly
groove from direction (3). After
inserting it into the groove,
confirm the position and condition
of the clip.
OK
∗ Precautions when attaching and removing the socket
• Be careful that the O-ring installed on the bottom (plate side) of the socket does
not fall out or become chewed up, etc.
• Be sure to hold the body with a wrench, etc., and tighten the socket within the
tightening torque range given above. If excessive torque is applied, there is a
danger of damaging the threads.
NG
Inserted position
Inserted condition
4.4-19
PA
Series
VDW/ Specific Product Precautions 2
Be sure to read before handling.
Replacement Parts
Fluid Flow Direction
Caution
Solenoid coil part numbers
VDW 2 0
1 B
5
Series
1
2
3
10
20, 200
30, 300
Lead wire length
Nil
L1
Type Note 1)
Note)
1
2
3
4
5
6
Order
Made
100VAC (50/60Hz)
200VAC (50/60Hz)
110VAC (50/60Hz)
220VAC (50/60Hz)
24VDC
12VDC
)........ Over 50V
)........ 50V and less
Note 1) In case of a type C coil (for 10, 30, 300), the cover will be an integrated
type.
To have a label on the cover, enter the part number below together with
the coil part number.
How to Order Valves
(Refer to pages 4.4-3, 4.4-7
and 4.4-13.)
VDW10
VDW20
VDW30
10
Pressure port 1 Pressure port 2 Note 1)
0.4
0.9
ø1.6
0.4
0.2
ø1.6
0.7
0.2
ø2.3
0.4
0.1
ø3.2
0.2
0.05
ø2
0.8
0.2
ø3
0.4
0.1
ø4
0.2
0.05
(1)
IN
3 port valve
VDW300
10, 20
30
ø1
Maximum operating pressure
differential MPa
N.C. N.O.
(2) (3)
VDW200
Series
Orifice size
mm
Note) When applying pressure from port 2, be careful to avoid vibration and impacts, etc.
Model
Clip part numbers (2 port)
Orifice size
mm
ø1
Maximum operating pressure
differential MPa
Pressure port 1 Pressure ports 2, 3 Note 1 & 2)
0.3
0.9
ø1.6
0.7
0.1
ø2
0.8
0.2
ø3
0.4
0.1
ø4
0.2
0.05
Note 1) Indicates the maximum operating pressure differential for pressure ports 2 and 3.
Note 2) When the port 2 pressure is the higher pressure, be careful to avoid vibration and
impacts, etc.
Piping to 3 Port Valve N.O. Port
Caution
Socket
Cover
When piping to an N.O. port, be sure to perform piping work
while holding the socket with a wrench or other tool.
4.4-20
Model
Contact SMC regarding other voltages
Protective class
Class II (Mark:
Class III (Mark:
2
3
(1)
IN
2 port valve
Voltage
VDW 2 0
OUT
(2)
300mm
600mm
Note) Type L1 is optional.
C1 10,20, 30
C2 200,300
AZ-T-VDW
The maximum operating pressure differential differs depending
on the flow direction of the fluid. If the pressure differential at
each port exceeds the values in the table below, valve
leakage may occur.
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