AirTAC 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C)
The AirTAC AirTAC 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C) is a genuine 5/2-way single solenoid (spring return) solenoid valve with 31008C 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 size31008C
- Effective area28.0 mm²
- Flow (Cv)1.65
- Series4V300
About the AirTAC 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C)
The AirTAC 4V310-08C is a 5/2-way single-solenoid pneumatic directional valve built on the 4V300 series body. It directs compressed air to double-acting cylinders and rotary actuators, energising to shift the spool and returning via a mechanical spring when the signal is removed. This spring-return action makes it a natural fit for tasks where the actuator must default to a known safe position on power loss.
With an effective area of 28.0 mm2 (Cv 1.65) and a response time of 0.05 seconds or less, this 1/4-inch PT-ported valve suits cylinder bores in the ~50–80 mm range. The AC110V coil draws 4.5 VA, and the IP65-rated terminal-box entry keeps wiring tidy. At 310 grams, it mounts individually or on a shared manifold base.
AirTAC 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C) Technical Specifications
| Model | AirTAC 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 31008C |
| Exhaust port | 31008C |
| 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 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C)
| 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. |
| -31008C | 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 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C) Is Used
Machine Tool Clamping
Controls a double-acting clamp cylinder on a CNC fixture. Spring return ensures the clamp releases when the AC110V signal is cut, providing a predictable default state for part loading.
Packaging Diverter Gates
Shifts a pneumatic gate on a conveyor line to sort packages. The 4.5 VA AC110V coil integrates easily into factory control panels, and the 1/4-inch ports match common tubing sizes.
Press Feed Mechanisms
Actuates a double-acting feed cylinder on a stamping press. The 28.0 mm2 effective area delivers the flow needed for rapid cycling of mid-bore cylinders, while the IP65 body handles oily shop air.
Is the AirTAC 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C) the Right Valve?
Choose the 4V310-08C when your application calls for a single electrical signal to drive a double-acting cylinder and you need a 1/4-inch port with an AC110V supply. If your cylinder bore is below ~40 mm, the smaller 4V200 series (Cv 1.0) may offer a more compact fit; for bores above ~80 mm, stepping up to the 4V400 (Cv 2.82) provides the extra flow. For a valve that stays in its last position without constant power, look at the double-solenoid 4V320 instead.
When replacing an existing valve, match five points: the 4V300 body size, the 5/2 single-solenoid function, the 1/4-inch PT thread, the AC110V coil voltage, and the terminal-box electrical entry. This valve also drops onto a standard 4V300 manifold base if you are building a multi-station 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 4V310-08C Solenoid Valve, 5/2-way, PT1/4, AC110V, terminal entry (4V31008C) FAQ
With an effective area of 28.0 mm2 (Cv 1.65), it is well matched to double-acting cylinders in the ~50–80 mm bore range. The exact speed depends on your operating pressure and tubing layout, but this Cv class provides responsive cycling for most mid-range pneumatic actuators.
Yes. The single-solenoid design requires constant power on the AC110V coil to hold the valve in its actuated position. When the signal is removed, the internal spring pushes the spool back to its home position, exhausting the cylinder port that was pressurised.
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