Airtac 4V series: pneumatic solenoid valve - 4V31008B

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

Description

Specifications: 4V300 series solenoid valve; 5/2-way, single solenoid; PT1/4 supply/outlets; DC24V; DIN connector; internal pilot.

Product Catalog

Download Airtac Product Catalog (PDF)

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

Airtac 4V300 series valves are functional alternatives to SMC VFS3000 series valves.

Model Code Explained

4V31008B: 4V=five-port solenoid valve; 3=300 series; 10=5/2-way, single solenoid; 08=1/4 inch; B=DC24V; blank electrical code=DIN; blank thread code=PT; blank pilot suffix=internal pilot.

Technical Specifications

Parameter	This model
Air / operation	40 μm filtered air; 5/2-way, single solenoid; internal pilot
Ports	P supply, A/B outlets: PT1/4; R/S exhausts: PT1/4
Pressure	0.15–0.8 MPa (21–114 psi); proof 1.2 MPa (175 psi)
Temperature / body	−20 to 70°C; aluminum alloy
Effective area / Cv	Not separately stated for this configuration; see series test references below.
Frequency / weight	Max. 4 cycles/s at no load; 310 g catalog weight for one valve; actual weight governs.

Electrical Specifications

DC24V; DC tolerance ±10%; 3.0 W per coil; DIN connector. IP65 (DIN40050); class B insulation; activating time ≤0.05 s.

Features and Operation

Sliding-spool design gives good sealing and responsive switching. Specially finished bore reduces friction and starting pressure, supporting service life. Manual override aids setup; manifold mounting saves space. Single solenoid with spring return; switches supply between A/B and exhausts the other outlet.

No added lubrication required. Once lubricated, continue using ISO VG32 or equivalent; do not stop lubrication.

External and Mounting Dimensions

mm; 2022 catalog p.76, 4V310 DIN view. Upper horizontal span 69 (inner 40). Axial span 135; body side width 40, offset 13.5; port-face width 27, inner width 20; manual pin 2.4.

Side holes 2×Ø4.3, spacing 24, end offset 28, body reference 80; additional vertical 98.7.

Two-port face: 2×Ø4.3, spacing 50, end offset 15; three-port face: spacing 45, end references 17.5 and 40.

Drawing letters: A=PT1/4, B=PT1/4, C=22, D=29, E=0; 2 exhaust ports use A, 3 supply/outlet ports use B. Drawing letters refer to dimension lines, not pneumatic port names; consult the drawing for their locations.

M5×0.8 external pilot port is an optional -W feature, not this configuration. For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Optional Manifold and Accessories

Optional 300M base: 1F–12F (1–12 stations), blank thread=PT, G=G, T=NPT; e.g. 300M1F. P-300M-R2 is the blanking-plate kit. Base kit: base, gaskets, screws; plate kit: plate, screws. Quantities/weights are not stated; neither kit is included in this single-valve code.

Base serves 4V300/5V300 valves; 40 μm filtered air, −20 to 70°C. Common supply/exhaust, organized wiring and expandable stations save space and simplify diagnosis.

Optional assembly drawing, 2022 p.82 (mm; includes illustrated valves, not bare-base dimensions): B=208, BA=190, BC=135, BD=40, C=97, CA=28, CB=40, D=75, E=64, F=28, G=26, H=54, ØK=4.5, KB=5, KC=26, P=3/8, PA=13.5, PB=53. P is port size; select PT/G/NPT.

A for 1F–12F: 52, 80, 108, 136, 164, 192, 220, 248, 276, 304, 332, 360; KA: 42, 70, 98, 126, 154, 182, 210, 238, 266, 294, 322, 350. Letter locations and assembly layout require the full drawing.

Flow Characteristics

Series flow-test references: 4V310-10/4V320-10: 28.0 mm², Cv=1.65; 4V330C-10: 21.3 mm², Cv=1.25. Area/Cv are calculated from test flow data; do not apply them to unlisted configurations. Curve test model 4V310-10; pressure axis 0–0.7 MPa (0.1 steps), flow axis 0–3200 L/min (400 steps). AirTAC laboratory data; axis limits are not rated flow. Read the curves for pressure-dependent flow.

Cylinder Selection Reference

2022 p.299 lists base model 4V31008; theoretical reference only, not guaranteed cylinder speed. Bore/tube OD×ID: mm; speed: mm/s; required effective area: mm². Match actual thread, load and circuit; auxiliary codes are table options, not included parts.

Bore 63: speeds 300/400/500; areas 4.9/6.5/8.1; tubes 8×5 at 300–400, 10×6.5 at 500. Controls: PTL02, PSL02, PSS02, ASC20008, PTL03, PSL03, PSS03, ASC30010. Silencers: BSL02/03, BSLM02/03, BESL02/03, PAL02/03, PALM02/03.

Bore 63: speeds 600/700/800; areas 9.7/11.4/13.0; tubes 10×6.5 at 600–700, 16×11 at 800. Controls: PTL02, PSL02, PSS02, ASC20008, PTL03, PSL03, PSS03, ASC30010. Silencers: BSL02/03, BSLM02/03, BESL02/03, PAL02/03, PALM02/03.

Internal Components

Series diagram key: 1 terminal; 2 retaining nut; 3 coil; 4 armature; 5 retaining plate; 6 piston; 7 pilot body; 8 body; 9 wear ring; 10 bottom cover; 11 screw; 12 spring; 13 gasket; 14 O-ring; 15 spool; 16 shaped O-ring; 17 spring; 18 manual pin; 19 return seat; 20 spring; 21 side cover; 22 return seat. Diagrams show 10/20/30C structures; numbers identify parts, not kit quantities or ordering codes.

Series Ordering Options

Series options, not all fitted: 10=single 5/2, 20=double 5/2; 30C/30E/30P=double 5/3, closed/exhaust/pressure center; ports 08=1/4 inch, 10=3/8 inch. A=AC220V, B=DC24V, C=AC110V, E=AC24V, F=DC12V; blank electrical code=DIN, I=0.5 m lead; blank pilot=internal, -W=external; blank thread=PT, G=G, T=NPT (M5 has no thread suffix).

Product form

Specifications: 4V300 series solenoid valve; 5/2-way, single solenoid; PT1/4 supply/outlets; DC24V; DIN connector; internal pilot. Product Catalog Download Airtac Product... Read more

SKU: 4V31008B

$39.32 Incl. VAT

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