AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI)
The AirTAC AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI) is a genuine 5/2-way single solenoid (spring return) solenoid valve with 31010EI ports and an effective area of 28.0 mm² (Cv 1.65). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
- Valve type5/2-way
- FunctionSingle solenoid (spring return)
- Port size31010EI
- Effective area28.0 mm²
- Flow (Cv)1.65
- Series4V300
About the AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI)
The 4V310-10EI is a single-solenoid, 5/2-way pneumatic directional valve built on the 4V300 body, directing compressed air to double-acting cylinders and actuators. When the AC24V coil is energised, the spool shifts to extend the cylinder; de-energising the coil allows the integrated mechanical spring to return the spool and retract the cylinder. This spring-return design requires a constant electrical signal to hold the actuated position, providing a predictable, fail-safe retract on power loss.
With an effective area of 28.0 mm² (Cv 1.65), this valve suits mid-bore double-acting cylinders in the ~O50-80 mm range. The AC24V coil draws 5.0 VA and the spool responds in 0.05 seconds or less. This model is configured with a grommet-style electrical entry, featuring a 0.5 m pre-wired flying lead for direct DIN-style connection, and PT (Rc) tapered threads on its 3/8-inch inlet and outlet ports.
AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI) Technical Specifications
| Model | AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 31010EI |
| Exhaust port | 31010EI |
| Effective area (Cv) | 28.0 mm² (Cv 1.65) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Pilot type | Internal / external pilot |
| Operating pressure | 0.15 – 0.8 MPa |
| Proof pressure | 1.2 MPa |
| Max frequency | 4 cycle/sec |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | 310 g |
Specifications follow the official AirTAC 4V series datasheet. Lubrication not required. Confirm coil voltage and thread (PT / NPT / G) against the product label before wiring.
Flow & Coil Options
| Effective area | 28.0 mm² |
|---|---|
| Flow coefficient | Cv 1.65 |
| Response time | ≤ 0.05 s |
| Coil power | AC 4.5 VA · DC24V 3.0 W · DC12V 2.5 W |
| Protection / insulation | IP65 (DIN40050), B-class |
| Voltage options | DC24V, DC12V, AC110V, AC220V |
| Manual override | Yes (locking / non-locking) |
Size the valve so effective area / Cv is not the bottleneck for your cylinder bore and speed. Undersized valves slow the actuator. Note 5/3 (center) versions have a smaller effective area than the 5/2 of the same body size.
Model Code: AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI)
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 3 | Body size (4V300) — sets port & flow. |
| 1 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -31010EI | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V310 (single), 4V320 (double), 4V330C/E/P (5/3 center). Add the voltage suffix when ordering.
Where the AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI) Is Used
Packaging & Palletising
Directs mid-bore pneumatic clamps and pushers on case packers and palletisers. The spring-return action ensures the tooling retracts safely if an E-stop interrupts the AC24V control signal.
Machine Tool Actuation
Controls double-acting cylinders for tool changers, safety interlocks, and chip guards on CNC machines. The 0.05 s response and 28.0 mm² effective area provide crisp, repeatable shifts.
General Industrial Automation
Operates larger cylinders on jigs, fixtures, and diverters in automated assembly lines. The grommet entry with a0.5 m flying lead simplifies wiring into a DIN-rail terminal block inside a control cabinet.
Is the AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI) the Right Valve?
Choose the 4V310-10EI when your application needs a 5/2 spring-return function on a 3/8-inch port with an AC24V supply and a pre-wired grommet connection. The 4V300 body’s Cv 1.65 is the sweet spot for cylinders around O50-80 mm; step down to a 4V200 (Cv 1.0) for smaller, fast-cycling O20-40 mm cylinders, or move up to a 4V400 (Cv 2.82) for O80-125 mm bores. For a position-holding memory function without constant power, consider the double-solenoid 4V320 series.
For a drop-in replacement, match five points: the 4V300 body size, the 10 (single 5/2) function, the 10 (3/8-inch) port size with PT thread, the E (AC24V) coil voltage, and the I (grommet) electrical entry. This valve can be used as a single unit or mounted on a 4V300 manifold base to build a compact, integrated valve group.
Quick checklist
- ✓ Required flow (Cv) for cylinder & speed
- ✓ Function: single / double / 5-3 center
- ✓ Coil voltage (DC24 / AC220 …)
- ✓ Port thread (M5 / 1/8 / 1/4 / 3/8 / 1/2)
- ✓ Single valve or manifold base?
Installation & Wiring Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.8 MPa operating pressure.
- check Match coil voltage to your controller output.
- check Use the manual override to test before powering.
- check Fit silencers or fittings to the exhaust ports.
- check Wiring by qualified personnel per AirTAC docs.
AirTAC 4V310-10EI Solenoid Valve, 5/2-way, PT3/8, AC24V, grommet entry (4V31010EI) FAQ
With a Cv of1.65 and an effective area of28.0 mm², it is sized for double-acting cylinders approximately O50-80 mm. It provides a good balance of flow and response for these mid-bore actuators in general automation.
The valve requires a constant AC24V signal to hold the solenoid in the actuated position. When power is removed, the integrated mechanical spring forces the spool back to its home position, which typically retracts the cylinder. This provides a predictable default state without needing a second solenoid.
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Related AirTAC 4V Valves
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