The AirTAC Airtac 4V Solenoid Valves 4V31010AG is a genuine 5/2-way single solenoid (spring return) solenoid valve with 31010AG 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.
The AirTAC 4V310-10AG is a single-solenoid 5/2 directional valve that switches compressed air between the two ports of a double-acting cylinder or actuator. Energise the coil and the spool shifts; de-energise and the internal spring returns the spool to its rest position, so your control signal must stay on for as long as you need the working stroke. This exact SKU is built for AC220V mains control with a 4.5 VA coil, a screw-terminal entry for fixed panel wiring, and G (BSPP parallel) threaded ports machined to 3/8in on inlet and outlet. Flow sits in the mid-size 4V300 class: 28.0 mm2 effective area, Cv 1.65, which pairs well with double-acting bores around Dia 50 to 80 mm on machines such as presses and clamping fixtures. Response is 0.05 s or better, switching up to 4 cycles per second, and the aluminium body with IP65 protection weighs about 310 g. Air is filtered by a 40 um element, lubrication is not required, and the valve mounts singly or snaps onto an integrated manifold base.
| Model | Airtac 4V Solenoid Valves 4V31010AG |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 31010AG |
| Exhaust port | 31010AG |
| 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.
| 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.
| 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. |
| -31010AG | 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.
Drives a Dia 63 mm press bore (about 159 kgf push at 0.5 MPa) where the spring-return function guarantees the ram retracts the moment the AC220V control signal drops.
Energise-to-clamp logic on 3/8in circuits: holding the coil on keeps the clamp closed, and Cv 1.65 fills a Dia 50-80 mm clamp cylinder quickly between cycles.
Switches packaging-line gates and pushers at up to 4 cycles per second, with the terminal box giving clean fixed wiring to the line PLC relay output.
Size around the Cv figure. If your cylinder is a Dia 40 or 50 mm bore pushing roughly 100 kgf at 0.5 MPa and speed is modest, the smaller 4V200 body (Cv 1.0) will do the job more cheaply. If you are moving a Dia 80 mm bore (about 256 kgf push at 0.5 MPa) fast, or a Dia 100 mm cylinder, step up to the 4V400 (Cv 2.82) so exhaust back-pressure does not slow the return stroke. A single-solenoid 5/2 like this one suits end-to-end stroking where a lost signal must retract the cylinder; choose a double-solenoid 4V320 when you need memory, or a 4V330x 5/3 when the cylinder must hold, float or stop under pressure at center. Order a manifold base if several valves sit side by side on one machine. For replacement, match all five points: 4V300 body size, function digit 10, port 10 with G thread (this SKU is 3/8in BSPP, not PT or NPT), coil voltage AC220V, and terminal entry rather than the I-suffix grommet lead.
Quick checklist
Effective area 28.0 mm2 (Cv 1.65) in the 5/2 flow path, maximum switching frequency 4 cycles per second, response time 0.05 s or less, operating pressure 0.15-0.8 MPa with 1.2 MPa proof pressure, working temperature -20 to +70 C, AC220V coil rated 4.5 VA, IP65 protection and about 310 g weight. Air must be filtered to 40 um and no lubricator is needed.
The G suffix means the 3/8in ports are cut as BSPP parallel threads, so sealing is done at the face with a bonded washer or O-ring rather than on the thread taper as with PT - handy when mating to manifold blocks and European-standard fittings. The blank entry code means a screw-terminal box: you land your AC220V wiring inside the box, which suits permanent machine installations better than the 0.5 m grommet lead option.
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