Airtac 3V3 series: pneumatic solenoid valve - 3V308NCE

Photos are for reference only. Not all models have pictures.

Description

Specifications: 3V308NCE — 3/2-way solenoid valve, series 3; 1/4-inch ports, PT1/4 thread; normally closed; AC24V; DIN connector.

Product Catalog

Download Airtac Product Catalog (PDF)

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

The linked English catalog illustrates the NPT ordering version. This model uses PT1/4 as specified by its thread code in the 2022 series catalog.

Airtac 3V3 series valves are functional alternatives to SMC VT317 series valves.

Model Code Explained

Parameter Meaning in 3V308NCE
3V Three-port, two-position solenoid valve
3 Series 3
08 1/4-inch connection size
NC Normally closed
E AC24V
Blank electrical code DIN connector
Blank thread code PT1/4 thread

Technical Specifications

Parameter Value
Model 3V308NCE
Valve type 3/2-way; direct acting; normally closed
Working medium Air, filtered through a 40 μm filter element.
Ports Three 1/4-inch ports; PT1/4 thread. P = supply, A = working outlet, R = exhaust.
Effective flow area 11 mm²; Cv = 0.62
Lubrication Not required
Operating pressure 0–0.8 MPa (0–114 psi), standard positive-pressure operation
Vacuum use Suitable for vacuum (negative-pressure) applications. Confirm the permissible vacuum range with the supplier before selection.
Proof pressure 1.2 MPa (175 psi); not the normal operating-pressure limit
Working temperature −20 to 70°C
Body material Aluminum alloy
Reference weight 227 g (0.227 kg) per valve. Catalog value is for reference only; actual product weight governs.

Electrical Specifications

Parameter Value
Rated voltage AC24V
Allowable voltage variation ±15% for this AC coil
Power consumption 10 VA per AC coil
Electrical connection DIN connector
Protection rating IP65 (DIN40050)
Insulation class Class B
Energizing time 0.05 s or less
Maximum operating frequency 10 cycles/s, under no-load conditions

Features and Operation

Direct-acting construction provides responsive switching. The coaxial poppet structure provides effective sealing and high flow. No added lubrication is required. A manual override assists installation and commissioning. Normally closed and normally open versions and multiple standard voltages are available as separate ordering choices. Vacuum applications are supported, subject to confirmation of the required operating range.

This NC model: De-energized: P is blocked and A connects to R. Energized: P connects to A and R is blocked. Refer to the PDF pneumatic symbols for port relationships and actuation.

External and Mounting Dimensions

Parameter Dimension / drawing location
Applicable drawing DIN-connector version; all dimensions below are in mm.
Overall height 91
Body width 38 in the dimensioned front and side body views
Side-view horizontal span 71.5 across the indicated valve and DIN-connector envelope.
Threaded mounting holes 2 × M5 × 0.8, depth 10; mounting-hole offsets are 30 horizontally and 30 vertically in the mounting-face view.
Through holes 2 × Ø4.2, shown in the manual-button plan view.
Port locations Three ports. Left view: port centre 27 above the base. Side view: port centre 13 above the base. A-port view: outlet centre 19 above the base.
Local 29 dimension The side view marks a local reference height of 29 from the base. Follow the PDF dimension lines for its exact endpoints; this is not the overall body height.
Port thread in drawing Three ports of the selected thread type: PT1/4. The catalog illustrations may show a different thread option; order by this model’s thread code.
Manual override Manual button position is identified in the plan view.

Use each dimension in its indicated view; separate callouts do not form a single length × width × height specification. Consult the PDF for dimension lines, hole locations and clearance around the connector or wire.

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Flow Characteristics

The catalog flow graph is labeled 3V308NC. Its horizontal axis is flow in L/min, from 0 to 900 in 100 L/min divisions. Its vertical axis is operating pressure in MPa, from 0 to 0.7 in 0.1 MPa divisions. Read the complete curves in the PDF to relate pressure and flow; 900 L/min is the graph scale limit, not a rated-flow specification.

Internal Components

Numbered components shown in the product cross-section:

Parameter Part name
1 Countersunk screw
2 Spool assembly
3 Spring
4 Body
5 Spacer sleeve
6 Washer
7 Electromagnet assembly
8 Push rod
9 Coil
10 Movable armature
11 Retaining washer
12 Retaining nut
13 Manual button
14 Terminal washer
15 Terminal

Series Ordering Options

Reference options for the 3V3 series, separate from this model’s selected configuration:

Parameter Available options
Port size 08 = 1/4 inch
Initial state NC = normally closed; NO = normally open
Voltage code A = AC220V; B = DC24V; C = AC110V; E = AC24V; F = DC12V
Electrical connection Blank = DIN connector; I = lead wire, length 0.5 m
Thread code Blank = PT; G = G thread; T = NPT. All refer to the 1/4-inch size for 3V308.
Product form

Specifications: 3V308NCE — 3/2-way solenoid valve, series 3; 1/4-inch ports, PT1/4 thread; normally closed; AC24V; DIN connector. Product Catalog Download... Read more

SKU: 3V308NCE

$65.76 Incl. VAT

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    Description

    Specifications: 3V308NCE — 3/2-way solenoid valve, series 3; 1/4-inch ports, PT1/4 thread; normally closed; AC24V; DIN connector.

    Product Catalog

    Download Airtac Product Catalog (PDF)

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    The linked English catalog illustrates the NPT ordering version. This model uses PT1/4 as specified by its thread code in the 2022 series catalog.

    Airtac 3V3 series valves are functional alternatives to SMC VT317 series valves.

    Model Code Explained

    Parameter Meaning in 3V308NCE
    3V Three-port, two-position solenoid valve
    3 Series 3
    08 1/4-inch connection size
    NC Normally closed
    E AC24V
    Blank electrical code DIN connector
    Blank thread code PT1/4 thread

    Technical Specifications

    Parameter Value
    Model 3V308NCE
    Valve type 3/2-way; direct acting; normally closed
    Working medium Air, filtered through a 40 μm filter element.
    Ports Three 1/4-inch ports; PT1/4 thread. P = supply, A = working outlet, R = exhaust.
    Effective flow area 11 mm²; Cv = 0.62
    Lubrication Not required
    Operating pressure 0–0.8 MPa (0–114 psi), standard positive-pressure operation
    Vacuum use Suitable for vacuum (negative-pressure) applications. Confirm the permissible vacuum range with the supplier before selection.
    Proof pressure 1.2 MPa (175 psi); not the normal operating-pressure limit
    Working temperature −20 to 70°C
    Body material Aluminum alloy
    Reference weight 227 g (0.227 kg) per valve. Catalog value is for reference only; actual product weight governs.

    Electrical Specifications

    Parameter Value
    Rated voltage AC24V
    Allowable voltage variation ±15% for this AC coil
    Power consumption 10 VA per AC coil
    Electrical connection DIN connector
    Protection rating IP65 (DIN40050)
    Insulation class Class B
    Energizing time 0.05 s or less
    Maximum operating frequency 10 cycles/s, under no-load conditions

    Features and Operation

    Direct-acting construction provides responsive switching. The coaxial poppet structure provides effective sealing and high flow. No added lubrication is required. A manual override assists installation and commissioning. Normally closed and normally open versions and multiple standard voltages are available as separate ordering choices. Vacuum applications are supported, subject to confirmation of the required operating range.

    This NC model: De-energized: P is blocked and A connects to R. Energized: P connects to A and R is blocked. Refer to the PDF pneumatic symbols for port relationships and actuation.

    External and Mounting Dimensions

    Parameter Dimension / drawing location
    Applicable drawing DIN-connector version; all dimensions below are in mm.
    Overall height 91
    Body width 38 in the dimensioned front and side body views
    Side-view horizontal span 71.5 across the indicated valve and DIN-connector envelope.
    Threaded mounting holes 2 × M5 × 0.8, depth 10; mounting-hole offsets are 30 horizontally and 30 vertically in the mounting-face view.
    Through holes 2 × Ø4.2, shown in the manual-button plan view.
    Port locations Three ports. Left view: port centre 27 above the base. Side view: port centre 13 above the base. A-port view: outlet centre 19 above the base.
    Local 29 dimension The side view marks a local reference height of 29 from the base. Follow the PDF dimension lines for its exact endpoints; this is not the overall body height.
    Port thread in drawing Three ports of the selected thread type: PT1/4. The catalog illustrations may show a different thread option; order by this model’s thread code.
    Manual override Manual button position is identified in the plan view.

    Use each dimension in its indicated view; separate callouts do not form a single length × width × height specification. Consult the PDF for dimension lines, hole locations and clearance around the connector or wire.

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Flow Characteristics

    The catalog flow graph is labeled 3V308NC. Its horizontal axis is flow in L/min, from 0 to 900 in 100 L/min divisions. Its vertical axis is operating pressure in MPa, from 0 to 0.7 in 0.1 MPa divisions. Read the complete curves in the PDF to relate pressure and flow; 900 L/min is the graph scale limit, not a rated-flow specification.

    Internal Components

    Numbered components shown in the product cross-section:

    Parameter Part name
    1 Countersunk screw
    2 Spool assembly
    3 Spring
    4 Body
    5 Spacer sleeve
    6 Washer
    7 Electromagnet assembly
    8 Push rod
    9 Coil
    10 Movable armature
    11 Retaining washer
    12 Retaining nut
    13 Manual button
    14 Terminal washer
    15 Terminal

    Series Ordering Options

    Reference options for the 3V3 series, separate from this model’s selected configuration:

    Parameter Available options
    Port size 08 = 1/4 inch
    Initial state NC = normally closed; NO = normally open
    Voltage code A = AC220V; B = DC24V; C = AC110V; E = AC24V; F = DC12V
    Electrical connection Blank = DIN connector; I = lead wire, length 0.5 m
    Thread code Blank = PT; G = G thread; T = NPT. All refer to the 1/4-inch size for 3V308.

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