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Power Valve, 3-Position Valve, VEX3 Series (VEX3122-025LZ-FN)

SMC

A 3-position valve that realizes various circuits with a simple configuration.
[Features]
・ Intermediate stop / emergency stop of large cylinder
・ Easy termination deceleration / intermediate transmission circuit
・ Universal porting that can also be used as a selector divider valve
・ For vacuum adsorption and vacuum destruction
・ For controlling the behavior of double-acting cylinders

(i)Caution

Product images may be representative. Refer to the manufacturer's catalog for details.

Part Number

Configured Part Number is shown.

VEX3122-025LZ-FN

Product Specifications
Part Numbers
Catalog

Power Valve, 3-Position Valve, VEX3 Series Specifications

Air operated type external appearance

Internal pilot solenoid type / External pilot solenoid type external appearance

Symbols (Left: Air operated type, Center: External pilot solenoid type, Right: Internal pilot solenoid type)

Specifications Table

Model	Body Ported Types	VEX312□-01 VEX312□-02	VEX332□-02 VEX332□-03 VEX332□-04	VEX350□-04 VEX350□-06 VEX350□-10	VEX370□-10 VEX370□-12	VEX390□-14 VEX390□-20
Model	Base Mounted Type	VEX322□-01 VEX322□-02	VEX342□-02 VEX342□-03 VEX342□-04	-	-	-
Operating Method		Air operated type, external pilot solenoid type, internal pilot solenoid type
Usable Fluids		Air
Operating Pressure Range	Air operated type	Main pressure: Low vacuum Vac. to 1.0 MPa
	Air operated type	External pilot pressure: 0.2 to 1.0 MPa
	External pilot solenoid type	Main pressure: Low vacuum Vac. to 1.0 MPa
	External pilot solenoid type	External pilot pressure: 0.2 to 0.7 MPa		External pilot pressure: 0.2 to 0.9 MPa
	Internal pilot solenoid type	Main pressure 0.2 to 0.7 MPa		Main pressure 0.2 to 0.9 MPa
Fluid temperature and ambient temperature		0 to 50℃ (air operated type: 0 to 60°C)
Response time (at 0.5 MPa pilot pressure)		40 ms or less	60 ms or less
Maximum Operating Frequency		3 times/s
Mounting Orientation		Free
Lubrication		Not required (Use turbine oil Class 1 ISO VG32, if lubricated)

*The non-lubricated specification is not available for these models.

Pilot solenoid valve specifications

Model			VEX3121, VEX3221, VEX3321, VEX3421 VEX3122, VEX3222, VEX3322, VEX3422	VEX3501, VEX3701, VEX3901 VEX3502, VEX3702, VEX3902
Pilot Valve			Dedicated pilot valve	VO307K-□□□1
Electrical Entry			Grommet, L plug connector, M plug connector, DIN terminal	Grommet, DIN terminal
Coil rated voltage (V)	AC (50/60 Hz)		100 V, 110 V, 200 V, 220 V, 240 V
Coil rated voltage (V)	DC		6 V, 12 V, 24 V, 48 V
Allowable Voltage Fluctuation			-15% to +10% of rated voltage
Apparent power	AC	Starting	4.5 VA / 50 Hz, 4.2 VA / 60 Hz	12.7 VA (50 Hz), 10.7 VA (60 Hz)
Apparent power	AC	Holding	3.5 VA / 50 Hz, 3 VA / 60 Hz	7.6 VA (50 Hz), 5.4 VA (60 Hz)
Power Consumption	DC		1.8 W (without indicator light), 2.1 W (with indicator light)	4 W (without indicator light), 4.2 W (with indicator light)
Manual Operation			Non-locking, push type	Non-locking, push type

*Please consult with the manufacturer support center regarding replacement of the dedicated pilot valve sizes 1 to 4.

Weight Table

(Unit: kg)

Model	VEX312□-01 VEX312□-02	VEX322□-01 VEX322□-02	VEX332□-02 VEX332□-03 VEX332□-04	VEX342□-02 VEX342□-03 VEX342□-04	VEX350□-04 VEX350□-06 VEX350□-10	VEX370□-10 VEX370□-12	VEX390□-14 VEX390□-20
Air operated type	0.1	0.2	0.3	0.6	1.4	2.1	3.3
Solenoid type	0.2	0.3	0.4	0.7	1.6	2.3	3.5

Body Ported Type / VEX312□ Dimensional Drawings

(Unit: mm)

Internal pilot solenoid type: VEX3122 DIN terminal (D) dimensional drawing

Internal pilot solenoid type: VEX3122 DlN terminal (D) dimensional drawing

Air operated type: VEX3120, External pilot solenoid type: VEX3121 dimensional drawings (A directional view)

Body ported type / VEX312□ drawings

Table 1: With/Without M5 Port Plug

Model	P1	P2
VEX3120	None	None
VEX3121	None	None
VEX3122	Yes	None

Base Mounted Type / VEX322□ Dimensional Drawings

(Unit: mm)

Air operated: VEX3420 dimensional drawing

External pilot solenoid type: VEX3421 dimensional drawing

Internal pilot solenoid type: VEX3422 DlN terminal (D) dimensional drawing

Base Mounted Type / VEX342□ Dimensional Drawings

Table 1: With/Without Sub-plate Plug

Model	P1	P2
VEX3220	None	None
VEX3221	None	None
VEX3222	Yes	None

Precautions

*Product images may be representative images.
*See the SMC catalog for product information other than that detailed above.

: 30; 45; 60

Part Number
VEX3122-025LZ-FN

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Type	Application	Number of Ports	Mounting Orientation	Specifications	Number of Solenoids	Switching Type	Status at Power Off	Voltage	Pipe Port Type	Plumbing Thread Nominal	Applicable Cylinder Dia. (Ø)	Plumbing	Driving Type	CV Value	Seal Type	Pressure Rating (MPa)	Pilot Air Supply	Lead wire electrical entry	Indicator light / Surge voltage suppressor	Option	Body size	Handling Method
	-	1 Piece(s)		Quote	Solenoid Valves	Single Use	3-Port Valve	Direct	Lubrication Free	Double	2-Position Normally Closed	Self-Recovery (Spring Return)	DC24V	[Rc (R)] Rc	1/4	40 to 300	Sub-Base Plumbing	Pilot Type Spool	0.89	Standard	0.2 to 0.7	Internal	L plug connector, lead wire length: 300 mm	With indicator light and surge voltage suppressor	Foot / With silencer for pilot exhaust port P2	12	-

Please check the type/dimensions/specifications of the part VEX3122-025LZ-FN in the Power Valve, 3-Position Valve, VEX3 Series series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Handling Method
- External Pilot Solenoid Type
- Internal pilot solenoid type
Clear
type
- VEX3
- VEX312
- VEX322
- VEX332
- VEX342
- VEX350
- VEX390
Clear
Type
- Solenoid Valves
- Master Valve
Clear
Application
- Single Use
- Unit for Manifold Mounting
Clear
Number of Ports
- 3-Port Valve
Clear
Mounting Orientation
- Direct
- Manifold Base
Clear
Specifications
- Low Vacuum Compatible
- Lubrication Free
Clear
Number of Solenoids
- Double
Clear
Switching Type
- 2-Position Normally Closed
- 3-Position Closed Center
Clear
Status at Power Off
- Self-Recovery (Spring Return)
Clear
Voltage
- DC12V
- DC24V
- AC100V
- AC110V
- AC200V
- AC220V
- AC240V
Clear
Pipe Port Type
- Rc (R)
  - Rc
- NPT
- NPTF
- G
Clear
Plumbing Thread Nominal
1/8

1/4

3/8

1/2

3/4

1

1 1/4

1 1/2

2
Clear
Applicable Cylinder Dia.(Ø)
100 or Less

250 or Less

125 to 300

200 or less

40 to 300
Clear
Plumbing
- Direct Plumbing
- Sub-Base Plumbing
Clear
Driving Type
- Pilot Type Spool
Clear
CV Value
0.59

0.86

0.89

0.99

1.1

2

2.2

2.7

3.2

3.3

6.4

8.9

10

17

18

33

37
Clear
Seal Type
- Standard
Clear
Pressure Rating(MPa)
- 0.2 to 0.7
- -0.1 to 1
- 02 to 0.9
Clear
Pilot Air Supply
- Internal
- External
Clear
Lead wire electrical entry
- Grommet / Lead wire length: 300 mm
- L plug connector, lead wire length: 300 mm
- M plug connector, lead wire length 300 mm
- Grommet / Lead wire length: 600 mm
- DIN terminal
- DIN terminal, without connector
- L plug connector, without connector
- L plug connector, without lead wire
- M plug connector, without connector
- M plug connector, without lead wire
- None
Clear
Indicator light / Surge voltage suppressor
- None
- With indicator light and surge voltage suppressor
- With surge voltage suppressor
Clear
Option
- Bracket / With silencer for pilot exhaust port P2
- Foot / With silencer for pilot exhaust port P2
- With silencer for pilot exhaust port P2
- None
- With bracket
- With foot
Clear
Body size
- 12
- 22
- 32
- 42
- 50
- 70
- 90
Clear

Days to Ship

All

21 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Products like this...

Part Number
VEX3120-01F
VEX3120-01F-B
VEX3120-02
VEX3122-025LZ-N
VEX3122-025M
VEX3122-025M-B

Standard Unit Price	Minimum order quantity	Days to Ship	Type	Application	Number of Ports	Mounting Orientation	Specifications	Number of Solenoids	Switching Type	Status at Power Off	Voltage	Pipe Port Type	Plumbing Thread Nominal	Applicable Cylinder Dia. (Ø)	Plumbing	Driving Type	CV Value	Seal Type	Pressure Rating (MPa)	Pilot Air Supply	Lead wire electrical entry	Indicator light / Surge voltage suppressor	Option	Body size	Handling Method
-	1 Piece(s)	Quote	Master Valve	Single Use	3-Port Valve	Direct	Low Vacuum Compatible / Lubrication Free	-	2-Position Normally Closed	-	-	G	1/8	40 to 300	Direct Plumbing	Pilot Type Spool	0.59	Standard	-0.1 to 1	External	None	None	None	12	-
-	1 Piece(s)	Quote	Master Valve	Single Use	3-Port Valve	Direct	Low Vacuum Compatible / Lubrication Free	-	2-Position Normally Closed	-	-	G	1/8	40 to 300	Direct Plumbing	Pilot Type Spool	0.59	Standard	-0.1 to 1	External	None	None	With bracket	12	-
MYR 497.95	1 Piece(s)	21 Day(s)	Master Valve	Single Use	3-Port Valve	Direct	Low Vacuum Compatible / Lubrication Free	-	2-Position Normally Closed	-	-	[Rc (R)] Rc	1/4	40 to 300	Direct Plumbing	Pilot Type Spool	0.89	Standard	-0.1 to 1	External	None	None	None	12	-
-	1 Piece(s)	Quote	Solenoid Valves	Single Use	3-Port Valve	Direct	Lubrication Free	Double	2-Position Normally Closed	Self-Recovery (Spring Return)	DC24V	[Rc (R)] Rc	1/4	40 to 300	Sub-Base Plumbing	Pilot Type Spool	0.89	Standard	0.2 to 0.7	Internal	L plug connector, lead wire length: 300 mm	With indicator light and surge voltage suppressor	With silencer for pilot exhaust port P2	12	-
-	1 Piece(s)	Quote	Solenoid Valves	Single Use	3-Port Valve	Direct	Lubrication Free	Double	2-Position Normally Closed	Self-Recovery (Spring Return)	DC24V	[Rc (R)] Rc	1/4	40 to 300	Sub-Base Plumbing	Pilot Type Spool	0.89	Standard	0.2 to 0.7	Internal	M plug connector, lead wire length 300 mm	None	None	12	-
-	1 Piece(s)	Quote	Solenoid Valves	Single Use	3-Port Valve	Direct	Lubrication Free	Double	2-Position Normally Closed	Self-Recovery (Spring Return)	DC24V	[Rc (R)] Rc	1/4	40 to 300	Sub-Base Plumbing	Pilot Type Spool	0.89	Standard	0.2 to 0.7	Internal	M plug connector, lead wire length 300 mm	None	With bracket	12	-

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Power Valve, 3-Position Valve, VEX3 Series (VEX3122-025LZ-FN)

(i)Caution

Power Valve, 3-Position Valve, VEX3 Series Specifications

Specifications Table

Pilot solenoid valve specifications

Weight Table

Body Ported Type / VEX312□ Dimensional Drawings

Table 1: With/Without M5 Port Plug

Base Mounted Type / VEX322□ Dimensional Drawings

Table 1: With/Without Sub-plate Plug

Precautions

Configure

Specification/Dimensions

Handling Method

type

Type

Application

Number of Ports

Mounting Orientation

Specifications

Number of Solenoids

Switching Type

Status at Power Off

Voltage

Pipe Port Type

Plumbing Thread Nominal

Applicable Cylinder Dia.(Ø)

Plumbing

Driving Type

CV Value

Seal Type

Pressure Rating(MPa)

Pilot Air Supply

Lead wire electrical entry

Indicator light / Surge voltage suppressor

Option

Body size