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049A/ENG
Installation and Maintenance Manual
VX21/22/23, 2 Port Solenoid Valves and
VVX21/22/23, Manifold Series
For future reference, please keep this manual in a safe place
This manual should be read in conjunction with the current catalogue
Safety Instructions
2. Only trained personnel should operate pneumatically
operated machinery and equipment.
These safety instructions are intended to prevent a hazardous situa-
Compressed air can be dangerous if an operator is unfamiliar
tion and/or equipment damage.These instructions indicate the level
with it. Assembly, handling or repair of pneumatic systems should
of potential hazard by label of "Caution", "Warning" or "Danger".
be performed by trained and experienced operators.
To ensure safety, be sure to observe ISO4414
(Note1)
, JIS B 8370
(Note2)
and other safety practices.
3. Do not service machinery/equipment or attempt to
Note 1: ISO 4414: Pneumatic fluid power – Recommendations for the
remove component until safety is confirmed.
application of equipment to transmission and control systems.
1) Inspection and maintenance of machinery/equipment should
Note 2: JIS B 8370: Pneumatic system axiom.
only be performed after confirmation of safe locked-out
control positions.
CAUTION :
2) When equipment is to be removed, confirm the safety process
Operator error could result in injury or
as mentioned above. Switch off air and electrical supplies and
equipment damage.
exhaust all residual compressed air in the system.
3) Before machinery/equipment is re-started, ensure all safety
WARNING:
Operator error could result in serious
measures to prevent sudden movement of cylinders etc.
injury or loss of life.
(Bleed air into the system gradually to create back-pressure,
i.e. incorporate a soft-start valve).
DANGER :
In extreme conditions, there is a
possible result of serious injury or loss of life.
4. Contact SMC if the product is to be used in any of the
following conditions:
1) Conditions and environments beyond the given specifica-
WARNING
tions, or if product is used outdoors.
2) Installations in conjunction with atomic energy, railway, air
1. The compatibility of pneumatic equipment is the respon-
navigation, vehicles, medical equipment, food and beverage,
sibility of the person who designs the pneumatic system
recreation equipment, emergency stop circuits, press
or decides its specifications.
applications, or safety equipment.
Since the products specified here are used in various operating
3) An application which has the possibility of having negative
conditions, their compatibility for the specific pneumatic system
effects on people, property, or animals, requiring special
must be based on specifications or after analysis and/or tests to
safety analysis.
meet your specific requirements.
CAUTION
Ensure that the air supply system is filtered to 5 micron.
Energise to open type (N.C.) (Fig 1)
Type/Valve specifications (Energised open type)
Max. operating pressure
Flow rate
Orifice
differential MPa (kgf/cm
Port
size
Effective
Model
size
(mmø)
Cv
area
Water
Air
(mm
2
)
AC
DC
AC
DC
1 /
2
0.17
3
VX2110-01
2.0{20}
1.5{15}
2.0{20}
1.5{15}
8
(6A)
3
0.33
6
VX2120-01
0.9{9}
0.5{5}
1.1{11}
0.6{6}
4.5
0.61
11
VX2130-01
0.4{4}
0.2{2}
0.45{4.5}
0.2{2}
2
0.17
3
VX2110-02
2.0{20}
1.5{15}
2.0{20}
1.5{15}
VX2120-02
0.9{9}
0.5{5}
1.1{11}
0.6{6}
3
0.33
6
VX2220-02
1.7{17}
1.5{15}
2.0{20}
1.5{15}
VX2320-02
2.5{25}
3.0{30}
3.0{30}
3.0{30}
VX2130-02
0.4{4}
0.2{2}
0.45{4.5}
0.2{2}
1 /
4.5
0.61
11
VX2230-02
0.6{6}
0.35{3.5} 0.75{7.5} 0.35{3.5} 0.35{3.5}
4
(8A)
VX2330-02
0.85{8.5}
0.9{9}
1.0{10}
0.9{9}
0.55{5.5}
6
1.05
19
VX2240-02
0.35{3.5} 0.15{1.5}
0.4{4}
0.15{1.5}
VX2340-02
0.55{5.5}
0.3{3}
0.5{5}
0.35{3.5} 0.35{3.5}
8
1.7
31
VX2250-02
0.13{1.3} 0.08{0.8} 0.15{1.5} 0.08{0.8}
VX2350-02
0.17{1.7}
0.2{2}
0.2{2}
0.2{2}
0.14{1.4}
10
1.9
34
VX2260-02
0.08{0.8} 0.03{0.3} 0.08{0.8} 0.03{0.3} 0.05{0.5}
VX2360-02
0.1{1}
0.07{0.7}
0.1{1}
0.07{0.7} 0.08{0.8}
3
0.33
6
VX2220-03
1.7{17}
1.5{15}
2.0{20}
1.5{15}
VX2320-03
2.5{25}
3.0{30}
3.0{30}
3.0{30}
4.5
0.61
11
VX2230-03
0.6{6}
0.35{3.5} 0.75{7.5} 0.35{3.5} 0.35{3.5}
VX2330-03
0.85{8.5}
0.9{9}
1.0{10}
0.9{9}
0.55{5.5}
6
1.05
19
VX2240-03
0.35{3.5} 0.15{1.5}
0.4{4}
0.15{1.5}
3 /
8
(10A)
VX2340-03
0.55{5.5}
0.3{3}
0.5{5}
0.35{3.5} 0.35{3.5}
8
1.7
31
VX2250-03
0.13{1.3} 0.08{0.8} 0.15{1.5} 0.08{0.8}
VX2350-03
0.17{1.7}
0.2{2}
0.2{2}
0.2{2}
0.14{1.4}
10
2.4
43
VX2260-03
0.08{0.8} 0.03{0.3} 0.08{0.8} 0.03{0.3} 0.05{0.5}
VX2360-03
0.1{1}
0.07{0.7}
0.1{1}
0.07{0.7} 0.08{0.8}
10
2.4
43
VX2260-04
0.08{0.8} 0.03{0.3} 0.08{0.8} 0.03{0.3} 0.05{0.5}
1 /
2
(15A)
VX2360-04
0.1{1}
0.07{0.7}
0.1{1}
0.07{0.7} 0.08{0.8}
Note: It is a grommet valve. Add the conduit 10g, the DIN connector 30g and the terminal 60g respectively.
Installation
Symbol
WARNING
Ensure all air and power supplies are ISOLATED before commencing
installation.
Do not install these valves in explosive atmospheres.
If these valves are exposed to water or oil droplets ensure that they
are protected.
If it is intended to energise a valve for an extended period please con-
sult SMC.
If air leakage causes associated equipment to malfunction cease using
valve and inspect for cause.
Check fixings while pressure and power are applied. Initial function
and leakage tests should be performed after installation.
Fig 1
Install only once safety instructions have been read and understood.
Energise to close type (N.O.) (Fig 2)
Type/Valve specifications (Energised close type)
Flow rate
Orifice
Port
size
size
(mmø) Cv
2
0.17
1 /
3
0.33
8
(6A)
4.5
0.61
2
0.17
3
0.33
1 /
4
(8A)
4.5
0.61
6
1.05
3
0.33
4.5
0.61
3 /
8
(10A)
6
1.05
Note: It is a grommet value. Add the conduit 10g, the DIN connector 30g and the terminal 60g respectively.
Symbol
Fig 2
Energised open type (N.C.) (Fig 3)
Manifold Series VVX21/22/23
Manifold specifications
Manifold type
Manifold base type
Max
2
)
system
Proof
Weight
Number of valves
pressure pressure
(g)
Blanking plate
Oil
Steam
MPa
MPa
(Note)
(with O-rings, screws)
(kgf/cm
2
) (kgf/cm
2
)
AC
DC
AC
Note: Common port is placed on vacuum side.
1.5{15}
1.5{15}
1.0{10}
0.5{5}
0.5{5}
1.0{10}
Construction and parts (Fig 4)
0.2{2}
0.15{1.5}
0.45{4.5}
260
1.5{15}
1.5{15}
1.0{10}
Water
VX21/22/23 (Orifice size 2,3,4,5,6mmø)
0.5{5}
0.5{5}
1.0{10}
Oil
1.2{12}
1.2{12}
1.0{10}
Air
5.0
400
1.7{17}
2.0{20}
-
3.0
{50}
540
0.2{2}
0.15{1.5}
0.45{4.5}
{30}
260
0.3{3}
0.75{7.5}
Steam
400
0.85{8.5}
1.0{10}
1.0
540
0.2{2}
0.1{1}
0.4{4}
{10}
400
0.3{3}
0.5{5}
540
0.1{1}
0.08{0.8}
0.15{1.5}
Water·
510
0.2{2}
0.2{2}
Oil Air
3.0
650
0.03{0.3}
0.08{0.8}
1.0 {10}
{30}
510
0.07{0.7}
0.1{1}
Steam 0.5 {5}
650
1.2{12}
1.2{12}
1.0{10}
Water
400
1.7{17}
2.0{20}
-
Oil Air
540
0.3{3}
0.75{7.5}
3.0 {30}
5.0
400
0.85{8.5}
1.0{10}
Steam
{50}
540
0.2{2}
0.1{1}
0.4{4}
1.0 {10}
400
0.3{3}
0.5{5}
540
0.1{1}
0.08{0.8}
0.15{1.5}
510
0.2{2}
0.2{2}
Water·
650
P
0.03{0.3}
0.08{0.8}
Oil Air
3.0
510
OUT
2
0.07{0.7}
0.1{1}
1.0 {10}
{30}
650
0.03{0.3}
0.08{0.8}
Steam
590
0.07{0.7}
0.1{1}
0.5 {5}
730
No.
OUT
IN
Fig 4
Max. operating pressure
differential MPa (kgf/cm
2
)
Effective
Model
area
Water
Air
Oil
Steam
(mm
2
)
3
VX2112-01
0.9{9}
1.5{15}
0.8{8}
1.0{10}
6
VX2122-01
0.45{4.5}
0.7{7}
0.45{4.5}
0.7{7}
11
VX2132-01
0.2{2}
0.3{3}
0.2{2}
0.3{3}
3
VX2112-02
0.9{9}
1.5{15}
0.8{8}
1.0{10}
VX2122-02
0.45{4.5}
0.7{7}
0.45{4.5}
0.7{7}
6
VX2222-02
0.8{8}
1.0{10}
0.7{7}
1.0{10}
VX2322-02
1.2{12}
1.6{16}
1.0{10}
-
VX2132-02
0.2{2}
0.3{3}
0.2{2}
0.3{3}
11
VX2232-02
0.3{3}
0.45{4.5}
0.3{3}
0.45{4.5}
VX2332-02
0.6{6}
0.8{8}
0.6{6}
0.8{8}
19
VX2242-02
0.15{1.5}
0.25{2.5}
0.15{1.5}
0.25{2.5}
VX2342-02
0.35{3.5}
0.45{4.5}
0.35{3.5}
0.45{4.5}
6
VX2222-03
0.8{8}
1.0{10}
0.7{7}
1.0{10}
VX2322-03
1.2{12}
1.6{16}
1.0{10}
-
11
VX2232-03
0.3{3}
0.45{4.5}
0.3{3}
0.45{4.5}
VX2332-03
0.6{6}
0.8{8}
0.6{6}
0.8{8}
19
VX2242-03
0.15{1.5}
0.25{2.5}
0.15{1.5}
0.25{2.5}
VX2342-03
0.35{3.5}
0.45{4.5}
0.35{3.5}
0.45{4.5}
Symbol
OUT
Common pressure type
Port A
OUT
IN
Port P
IN
Individual pressure type
Port P
Port P
IN
OUT
B Mount
Common pressure type,
individual pressure type (Note)
2~10 stations
VVX21···VX011-011,
VVX22/23···VX011-006
Fig 3
VX22/23 (Orifice size 8,10mmø)
P
OUT
IN
1
Material
Description
Standard
Body
Brass
SUS304
Core assembly
SUS430·Copper
SUS430·Silver
Armature assembly
SUS430·NBR
SUS430·FPM/SUS430·PTFE/SUS430·EPR
Return spring
SUS304
-
Coil assembly
Class B molded
Class H molded
O-ring
NBR
FPM/EPR/PTFE
Retainer
SUS304
-
Bonnet
Brass
SUS304
O-ring
NBR
FPM/EPR/PTFE
Electrical connection (Fig 5)
CAUTION
Max
system
Proof
Weight
Isolate both power and air supplies before removing/replacing
pressure pressure
(g)
connector.
MPa
MPa
(Note)
In the case of DIN connector and terminal block, connections are
(kgf/cm
2
) (kgf/cm
2
)
shown below.
With DIN connector
280
1:+
2:-
440
580
Water
280
Oil
5.0{50}
440
Air
580
3.0
440
{30}
580
Terminal No.
1
Steam
440
DIN connector
+
1.0{10}
580
440
580
Fig 5
440
580
1. Loosen the top screw and remove the connector housing from the
terminal spades on the solenoid.
2. Remove the housing screw and insert a screwdriver into the slot
on the underside of the DIN cap and carefully remove the block.
3. Loosen the terminal screws on the block and insert the stripped
Port A
leads. Secure each lead by re-tightening the appropriate terminal
screw.
4. Tighten the housing grommet nut to secure the cable.
OUT
CAUTION
IN
Pull connector out vertically, never at an angle.
In the case of the conduit entry, the connections are shown below.
Phillips/ordinary
IN
round head screw
Port A
M3
OUT
mark
mark
Phillips/ordinary
round head screw
Conduit terminal
M3
View A-A'
(Internal connection)
Fig 6
VX21/22/23
Common pressure type
IN
OUT
Port A
Option
No.
Description
Body
Core assembly
Base
Armature assembly
O-ring
Coil assembly
Return spring
Fig 8
Wiring
Should the coil be subjected to a surge voltage, place a surge sup-
presser in parallel with the coil if not fitted as an option.
The allowable voltage range is -10% - +10% of rated voltage.
The voltage found across the coil when de-energised is :-
AC: 20% or less of rated voltage
DC: 2% or less of rated voltage
Piping
1
Piping should be thoroughly flushed to remove sludge, cutting oil
and dust.
2
During piping and coupling connection, care should be taken to
prevent contamination by dirty threads or sealing materials.
When applying sealing tape to threads, the thread should extend
one screw pitch beyond the tape.
3
Pay attention to the direction of piping (solenoid valve IN, OUT.)
IN
In the case of 2 port valves,
indicates the inlet side. In the
P
A
case of 3 port valves,
indicates inlet,
indicates outlet,
R
2
indicates exhaust.
-
4
The coil should not be subjected to an external force. When tight-
ening, apply a wrench to the outside of the pipe mounting area
only.
5
In the case of solenoid valves specified for vacuum and non-leak
use, please pay special attention to the exclusion of foreign mat-
ter and leakage through the couplings.
6
In the process of piping, if the coil assembly needs to be removed,
do so by removing its retainer.
After completion of piping please reattach the retainer.
7
The piping system should not be grounded.
Grounding would cause electrolytic corrosion.
8
To prevent collection of fluid within the piping circuit please install
a relief valve within the circuit.
Mounting (Fig 7)
1
The solenoid valve may be mounted in any orientation. However
when mounted upside down, foreign material in the fluid is liable
to adhere to the iron core. This mounting position is not recom-
mended by SMC.
2
Do not keep coil assemblies warm with insulating materials etc. It
will cause the coil to burn out.
Anti-freezing tape, heater etc. should be applied to piping and
body areas only.
3
Except in the case of steel pipes and couplings, mount the valve
with a bracket, especially in the case of non-leak and vacuum
valves. The bracket will help prevent loosening of the couplings.
4
Do not place the valve in areas of severe vibration.
In the case of manifold mounted type valves (where 00 connection
option appears in the part number), see Fig 7.
Ensure that 'O' rings item 5 in Fig 8 are not damaged and free from
any foreign bodies. Locate valve on manifold, being sure to connect
the OUT port on the manifold with the centre port on the valve. Locate
the 4 off mounting screws and tighten so as to achieve an air tight
seal between the valve and the manifold.
Individual pressure type
OUT
IN
Port A
Port P
IN
Port P
Material
Standard
Option
Aluminum
-
SUS430·Copper
SUS430·Silver
Aluminum
-
SUS430·NBR
SUS430·FPM/SUS430·EPR
NBR
FPM/EPR
Class B molded
Class H molded
SUS304
-
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Summary of Contents for SMC Networks VX21
- Page 1 Installation and Maintenance Manual Energise to close type (N.O.) (Fig 2) Electrical connection (Fig 5) Wiring VX21/22/23, 2 Port Solenoid Valves and Type/Valve specifications (Energised close type) Should the coil be subjected to a surge voltage, place a surge sup- VVX21/22/23, Manifold Series CAUTION presser in parallel with the coil if not fitted as an option.
- Page 2 Blanking plate • (Pitch) (OUT Port) Fig 7 Applicable fluids VX21/22/23, 2 Port solenoid valves Standard Water (standard, up to 60°C), air (standard, dry), turbine oil, spindle oil, Kerosene, vacuum (up to 1 torr), carbon dioxide (CO ), nitrogen gas (n...
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