AirTAC 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI)
The AirTAC AirTAC 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI) is a genuine 5/2-way single solenoid (spring return) solenoid valve with 31010FI 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 size31010FI
- Effective area28.0 mm²
- Flow (Cv)1.65
- Series4V300
About the AirTAC 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI)
The 4V310-10FI is a 5/2-way single-solenoid pneumatic directional valve built on the 4V300 aluminum body. It directs compressed air to one side of a double-acting cylinder while exhausting the other, and a mechanical spring returns the spool to its home position the instant the DC12V signal is removed. This spring-return action makes it a predictable choice for cycles where the actuator must default to a safe rest state on power loss.
This specific configuration ships with a 0.5 m pre-wired grommet lead-out and 3/8 NPT ports, ready for direct hard-wiring into a DC12V control circuit. The 3.0 W coil keeps heat low during continuous-duty holding, and the spool shifts in 0.05 s or less. With an effective area of 28.0 mm² (Cv 1.65), it suits double-acting cylinders in the ~O50-80 mm bore range.
AirTAC 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI) Technical Specifications
| Model | AirTAC 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 31010FI |
| Exhaust port | 31010FI |
| 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 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI)
| 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. |
| -31010FI | 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 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI) Is Used
Packaging & Palletizing
Drives the pusher and clamp cylinders on case packers and palletizers. The spring-return design ensures the pusher retracts to a safe home position when the DC12V signal drops, protecting product and tooling.
CNC & Machine-Tool Fixtures
Controls double-acting clamp/unclamp cylinders on milling and drilling fixtures. The 0.05 s shift time and NPT ports suit the rigid plumbing common in machine shops, and the grommet lead keeps wiring tidy inside cable tracks.
Truck & Trailer Pneumatics
Operates gate or hopper cylinders on bulk-haul trailers where DC12V is the native electrical system. The IP65-rated grommet entry and NPT fittings handle vibration and road grime without loosening or moisture ingress.
Is the AirTAC 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI) the Right Valve?
Choose the 4V310-10FI when your manifold or sub-base uses NPT threads and you need a DC12V coil with a flying-lead electrical entry. The 4V300 body sits between the compact 4V200 (Cv 1.0) and the larger 4V400 (Cv 2.82): if your cylinder is smaller than O50 mm, a 4V200 may cycle faster; if you are driving an O100 mm or larger bore at high speed, step up to the 4V400. For applications that must hold position on power loss without a spring, consider the double-solenoid 4V320 series, but remember that a memory valve alone does not replace a mechanical brake for suspended loads.
When replacing an existing valve, match five points: body size (4V300), function (5/2 single-solenoid spring-return), port size and thread (3/8 NPT), coil voltage (DC12V), and electrical entry (grommet with flying lead). This model can be mounted as a single unit or ganged on a 4V300 manifold base for multi-cylinder banks.
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 4V310-10FI Solenoid Valve, 5/2-way, NPT3/8, DC12V, grommet entry (4V31010FI) FAQ
With a Cv of 1.65 and an effective area of 28.0 mm², this valve is sized for double-acting cylinders roughly in the O50 to O80 mm bore range. The exact speed depends on your supply pressure and tubing length; for a smaller O32-40 mm cylinder a 4V200 series (Cv 1.0) often gives snappier response, while a large O100 mm cylinder may benefit from stepping up to the 4V400 (Cv 2.82).
No — this is a single-solenoid, spring-return valve. When the DC12V signal is removed, the internal spring pushes the spool back to its home position, exhausting the cylinder's A port. If your application requires the actuator to stay in its last position during a power loss, look at the double-solenoid 4V320 series (memory function). For true load-holding safety, always add a pilot-operated check valve at the cylinder ports.
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