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Número de pieza VXZ2
Descripción Installation and Maintenance Manual Series
Fabricantes SMC 
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044A/Eng
Installation and Maintenance Manual
Series VXZ 2 Port Solenoid Valve
For future reference, please keep this manual in a safe place
This manual should be read in conjunction with the current valve catalogue
Safety Instructions
These safety instructions are intended to prevent a hazardous situa-
tion and/or equipment damage.These instructions indicate the level
of potential hazard by label of “Caution”, “Warning” or “Danger”.
To ensure safety, be sure to observe ISO4414 ,(Note1) JIS B 8370 (Note2)
and other safety practices.
Note 1: ISO 4414: Pneumatic fluid power – Recommendations for the
application of equipment to transmission and control systems.
Note 2: JIS B 8370: Pneumatic system axiom.
CAUTION : Operator error could result in injury or
equipment damage.
WARNING: Operator error could result in serious
injury or loss of life.
DANGER : In extreme conditions, there is a
possible result of serious injury or loss of life.
WARNING
1. The compatibility of pneumatic equipment is the respon-
sibility of the person who designs the pneumatic system
or decides its specifications.
Since the products specified here are used in various operating
conditions, their compatibility for the specific pneumatic system
must be based on specifications or after analysis and/or tests to
meet your specific requirements.
ǡ N.C ǠNormally closed type (Fig 1)
2. Only trained personnel should operate pneumatically
operated machinery and equipment.
Compressed air can be dangerous if an operator is unfamiliar
with it. Assembly, handling or repair of pneumatic systems should
be performed by trained and experienced operators.
3. Do not service machinery/equipment or attempt to
remove component until safety is confirmed.
1) Inspection and maintenance of machinery/equipment should
only be performed after confirmation of safe locked-out
control positions.
2) When equipment is to be removed, confirm the safety process
as mentioned above. Switch off air and electrical supplies and
exhaust all residual compressed air in the system.
3) Before machinery/equipment is re-started, ensure all safety
measures to prevent sudden movement of cylinders etc.
(Bleed air into the system gradually to create back-pressure,
i.e. incorporate a soft-start valve).
4. Contact SMC if the product is to be used in any of the
following conditions:
1) Conditions and environments beyond the given specifica-
tions, or if product is used outdoors.
2) Installations in conjunction with atomic energy, railway, air
navigation, vehicles, medical equipment, food and beverage,
recreation equipment, emergency stop circuits, press
applications, or safety equipment.
3) An application which has the possibility of having negative
effects on people, property, or animals, requiring special
safety analysis.
CAUTION
Ensure that the air supply system is filtered to 5 micron.
Specifications
Model/Valve specifications
Flow rate coefficient
Orifice
Effective
Port size dia Cv orifice
mm ø
(mm2)
1/4 10 1.9 34
3/8 10 2.4 43
1/2 15 5.3 95
3/4 20 9.2 165
1 25 12 215
Model
VXZ2230-02
VXZ2230-03
VXZ2240-04
VXZ2350-06
VXZ2360-10
Min Max. operating pressure difference MPa (kgf/cm2)
operating
pressure
Water
Air
Oil
difference
MPa {kg/cm2}
AC
DC AC DC AC DC
1.0 0.7 1.0 0.7 0.7 0.7
(10.2) (7.1) (10.2) (7.1) (7.1) (7.1)
1.0 0.7 1.0 0.7 0.7 0.7
(10.2 (7.1) (10.2) (7.1) (7.1) (7.1)
0 1.0 0.7 1.0 0.7 0.7 0.7
(10.2) (7.1) (10.2) (7.1) (7.1) (7.1)
1.0 1.0 1.0 1.0 0.7 0.7
(10.2) (10.2) (10.2) (10.2) (7.1) (7.1)
1.0 1.0 1.0 1.0 0.7 0.7
(10.2) (10.2) ( 10.2) (10.2) (7.1) (7.1)
Max.
system
pressure
MPa
{kgf/cm2}
1.5
(15.3)
Weight
g (Note)
550
550
760
1,300
1,480
Note: Values for the grommet type. Add 10g for the conduit type, 30g for the DIN connector type, and 60g for the terminal type.
Solenoid specifications
Model
VXZ22
VXZ23
Power
supply
AC
DC
AC
DC
Frequency
Hz
50
60
-
50
60
-
Apparent power VA
Inrush
Holding
60 (53)
18
51 (44)
12
--
80 21
67 17
--
Power consumption
W (Holding)
7.5
6
8
11
9.5
11.5
Temp. rise °C
(Rated voltage)
60
50
60
65
60
65
Note:
The return voltage is 20% or more of the rated voltage for AC and 2% or more for DC.
The allowable voltage fluctuation rate is ±10% of the rated value for both AC and DC.
When the ambient temperature is 20°C ±5°C and rated voltage is applied.
Coil change from AC to DC or DC to AC is impossible because the iron core shapes are different.
The apparent power in the parentheses is for VXZ2230.
Installation
WARNING
Ensure all air and power supplies are ISOLATED before commencing
installation.
Do not install these valves in explosive atmospheres.
If a valve is exposed to oil and/or water droplets ensure that it is pro-
tected.
If it is intended to energise a valve for an extended period of time
please consult SMC.
This valve is NOT intended to be used as a 'Dump' valve.
Symbol
Fig 1
Out
In
Ǡ N.O ǡ Normally open type (Fig 2)
Model/Valve specifications
Flow rate coefficient
Orifice
Effective
Port size dia Cv orifice
mm ø
(mm2)
1/4 10 1.9 34
3/8 10 2.4 43
1/2 15 5.3 95
3/4 20 9.2 165
1 25 12 215
Model
VXZ2232-02
VXZ2232-03
VXZ2242-04
VXZ2352-06
VXZ2362-10
Min Max. operating pressure difference MPa (kgf/cm2)
operating
pressure
Water
Air
Oil
difference
MPa {kg/cm2}
AC
DC AC DC AC DC
0.7 0.6 0.7 0.6 0.7 0.6
(7.1) (6.1) (7.1) (6.1) (7.1) (6.1)
0.7 0.6 0.7 0.6 0.7 0.6
(7.1) (6.1) (7.1) (6.1) (7.1) (6.1)
0 0.7 0.6 0.7 0.6 0.7 0.6
(7.1) (6.1) (7.1) (6.1) (7.1) (6.1)
0.7 0.6 0.7 0.6 0.7 0.6
(7.1) (6.1) (7.1) (6.1) (7.1) (6.1)
0.7 0.6 0.7 0.6 0.7 0.6
(7.1) (6.1) (7.1) (6.1) (7.1) (6.1)
Max.
system
pressure
MPa
{kgf/cm2}
1.5
(15.3)
Weight
g (Note)
600
600
850
1,370
1,550
Note: Values for the grommet type. Add 10g for the conduit type, 30g for the DIN connector type, and 60g for the terminal type.
Solenoid specifications
Model
VXZ22
VXZ23
Power
supply
AC
DC
AC
DC
Frequency
Hz
50
60
-
50
60
-
Apparent power VA
Inrush
Holding
66 (60)
20
57 (51)
15
--
93 25
79 20
--
Power consumption
W (Holding)
8
6.5
8
11
9.5
11.5
Temp. rise °C
(Rated voltage)
55
45
50
60
50
55
Note:
The return voltage is 20% or more of the rated voltage for AC
and 5% or more for DC.
The allowable voltage fluctuation rate is ±10% of the rated value
for both AC and DC.
When the ambient temperature is 20°C ±5°C and rated voltage
is applied.
Coil change from AC to DC or DC to AC is impossible because the
iron core shapes are different.
The apparent power in the parentheses is for VXZ2232.
Symbol
Construction ǡ N.C Ǡ normally closed type (Fig 3)
Fig 2
Out
In
OUT
Parts list
No. Description
Material
Standard
Option
Body
Brass/BC6
SUS
Bonnet
Brass SUS
O ring
NBR FPM/EPR
Diaphragm assembly SUS·NBR
SUS·FPM/SUS·EPR
Core assembly
SUS·Copper
SUS·Silver
Armature assembly
SUS·NBR
SUS·FPM/SUS·EPR
Holder assembly
POM·NBR
SUS·FPM/SUS·EPR
Return spring
SUS
-
Coil assembly
B-mold
H-mold
IN µ Collar
SUS -
Fig 3
Construction Ǡ N.O ǡ normally open type (Fig 4)
µ
OUT
Parts list
No. Description
Material
Standard
Option
Body
Brass/BC6
SUS
Bonnet
Brass
SUS
O ring
NBR FPM/EPR
Diaphragm assembly SUS·NBR
SUS·FPM/SUS·EPR
Core assembly
SUS·Copper
SUS·Silver
Armature assembly
SUS·NBR
SUS·FPM/SUS·EPR
Holder assembly
POM·NBR
SUS·FPM/SUS·EPR
Return spring
SUS
-
Coil assembly
B-mold
H-mold
IN µ Collar
SUS -
Fig 4
Detail drawing N.C/N.O. (Fig 5)
ǡ N.C Ǡ
Normally closed type
Common parts
Ǡ N.O ǡ
Normally open type
Core assembly
Retainer
Collar (N.O only)
Core assembly
Rod for spring
Name plate
Return spring
Armature assembly
Bolt
Bonnet
Coil assembly
Wave washer
O-ring
Shaft
Holder assembly
Return spring
Diaphragm
assembly
Body
Fig 5
DIN connector wiring (Fig 6)
The electrical connections for the DIN connector are shown in Fig 6.
Note: Minimum wire diameter is 0.5mm2.
To prevent damage due to surge voltage fit a voltage suppresser in
parallel with the solenoid valve.
Leakage voltage should be kept to within 20% or less of the rated
voltage for AC, 2% or less of the rated voltage for DC.
With DIN connector
Terminal No.
DIN connector
Ground
1
+
DIN connector: D
ǡ N.C Ǡ
Normally closed type
Fig 6
Ǡ N.O ǡ
Normally open type
2
-
G (PF) 1/2
Cable: ø6~9
Width across flats: 22
IN
G (PF) 1/2
Cable: ø6~9
Width across flats: 22
IN
Fig 7

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