The AirTAC Airtac 4V Solenoid Valves 4V31010CT is a genuine 5/2-way single solenoid (spring return) solenoid valve with 31010CT 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 4V310-10CT is a 5/2 single-solenoid directional valve in the 4V300 body class, built with NPT tapered ports for North American pipework. Energise the AC110V coil and the spool sends air to one side of a double-acting cylinder while venting the other; drop the signal and the spring snaps the spool back, reversing the stroke. It suits roughly O50-80 mm bores, moving about 159 kgf of push force on an O63 cylinder at 0.5 MPa, with Cv 1.65 (28.0 mm2 effective area) behind the flow. This exact SKU pairs the 3/8in inlet and outlet (exhaust is 1/4in) with an AC110V, 4.5 VA coil wired to a terminal box, so field connections are made under a screwed cover rather than with flying leads. Spool actuation takes 0.05 s or less, the valve runs on 0.15-0.8 MPa, and the 310 g aluminium body carries an IP65 rating. Air must be filtered to 40 um and no line lubricator is needed.
| Model | Airtac 4V Solenoid Valves 4V31010CT |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 31010CT |
| Exhaust port | 31010CT |
| 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. |
| -31010CT | 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 an O63 pusher that squares carton rows on a beverage-can palletizer. Cv 1.65 keeps a short 200 mm stroke cycling at up to 4 cycles per second, and the NPT ports suit standard US fittings.
A constant PLC output holds the clamp side of an O50 swing clamp pressurised at about 100 kgf; when the signal drops, the spring vents the clamp side automatically with no operator action.
Swings a flap gate that routes parcels between two conveyor lanes. The 0.05 s response time makes the gate changeover crisp, and the 4.5 VA AC110V coil suits a standard 110V control cabinet.
Size against the bore you drive: the smaller 4V200 body (Cv 1.0) is the step down once you fall below about O50 mm, while the larger 4V400 body (Cv 2.82) is the step up past roughly O80 mm, where an O80 bore alone wants about 256 kgf of push at 0.5 MPa. Pick this single-solenoid 10 version when your PLC can hold a signal for the whole out-stroke; if you need the valve to remember its position after a short pulse with no signal present, order the double-solenoid 4V320-10CT instead. Ordering one valve per station? This body also mounts on a manifold base so several stations share one inlet and common exhaust. When replacing, match five points: 4V300 body, function 10, 3/8in port with NPT thread, AC110V coil, and terminal-box entry.
Quick checklist
Flow class is Cv 1.65 (28.0 mm2 effective area) with a maximum frequency of 4 cycles per second. Response time is 0.05 s or less. Operating pressure spans 0.15-0.8 MPa with 1.2 MPa proof pressure. The AC110V coil draws 4.5 VA, insulation is class B, protection is IP65 (DIN40050), and the valve weighs 310 g. Ports are 3/8in NPT on inlet and outlet with 1/4in NPT exhausts.
The coil needs a signal held for the entire first stroke; the instant it de-energises, the internal spring pushes the spool back and the cylinder retracts. This is simple and predictable but not a position memory - for pulse control that holds its last state, use the double-solenoid 4V320. For guaranteed holding of a suspended load, add a pilot-operated check valve at the cylinder ports, since no solenoid valve alone should serve as a brake.
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