AirTAC 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI)
The AirTAC AirTAC 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI) is a genuine 5/2-way single solenoid (spring return) solenoid valve with 31010BI 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 size31010BI
- Effective area28.0 mm²
- Flow (Cv)1.65
- Series4V300
About the AirTAC 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI)
The AirTAC 4V310-10BI is a 5/2-way single-solenoid pneumatic directional valve that directs compressed air to double-acting cylinders and rotary actuators. Its spool shifts when the DC24V coil is energised and returns by mechanical spring the instant power is removed, making it a safe default-state choice for clamping or ejecting where the cylinder must retract on power loss. With a 28.0 mm² effective area (Cv 1.65) and a response time ≤ 0.05 s, it is sized for ~O50–80 mm bore cylinders.
This specific configuration ships with a grommet-style electrical entry—a 0.5 m pre-wired flying lead that simplifies DIN-rail wiring and keeps the IP65 protection intact. The 3.0 W DC coil runs cool on 24 V control circuits, and the 3/8 in PT (Rc) ports deliver high flow while the 1/4 in exhausts keep the body compact. The aluminium-alloy body weighs 310 g and needs no lubricated air when filtered to 40 µm.
AirTAC 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI) Technical Specifications
| Model | AirTAC 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 31010BI |
| Exhaust port | 31010BI |
| 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 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI)
| 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. |
| -31010BI | 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 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI) Is Used
Clamping & Workholding
Directs a double-acting clamp cylinder on a machining centre. Spring return ensures the clamp releases immediately when the 24 V signal drops, preventing part damage during an E-stop.
Diverter & Sortation Gates
Shifts a pneumatic gate on a conveyor line. The 3/8 in port provides the flow to move a ~O63 mm cylinder quickly, while the grommet lead keeps wiring tidy inside a crowded control panel.
Press & Forming Tools
Controls the advance stroke of a small pneumatic press. The 3.0 W DC coil interfaces directly with a PLC output, and the 0.05 s response gives crisp punch timing for consistent forming.
Is the AirTAC 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI) the Right Valve?
Choose the 4V310-10BI when your application needs a single 5/2 valve with a DC24V grommet coil on a 3/8 in PT port. Step down to a 4V200 (Cv 1.0) only if you are driving a cylinder smaller than ~O40 mm; move up to a 4V400 (Cv 2.82) for bores above ~O100 mm. A single-solenoid spring-return valve suits circuits where the cylinder must go to a known safe position when the signal is off—unlike a double-solenoid memory valve that stays put.
For a drop-in replacement match five points: body size (4V300), function (5/2 single solenoid), port and thread (3/8 in PT), coil voltage (DC24V), and electrical entry (grommet with flying lead). If you are building a multi-station manifold, order the same function on a base-compatible sub-plate; the 4V310-10BI can be mounted individually or ganged on a common manifold.
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 4V310-10BI Solenoid Valve, 5/2-way, PT3/8, DC24V, grommet entry (4V31010BI) FAQ
With a Cv of 1.65 and a 28.0 mm² effective area, it is a good match for double-acting cylinders in the ~O50–80 mm bore range. It can cycle a ~O63 mm cylinder at up to 4 cycles per second under typical 0.5–0.6 MPa shop air.
Yes—the 'I' suffix means the valve comes with a 0.5 m flying lead instead of a terminal box. You connect the two DC24V wires directly to your control circuit. Polarity is marked on the lead, and the grommet maintains the IP65 seal when properly fitted.
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