The AirTAC Airtac 4V Solenoid Valves 4V32010A-W is a genuine 5/2-way double solenoid (memory) solenoid valve with W 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 4V320-10A-W is a double-solenoid 5/2-way directional valve from AirTAC's 4V300 body, fitted with a 3/8in PT (Rc tapered) port, a terminal-box entry and a 220V AC coil that draws only 4.5 VA. It routes compressed air to double-acting cylinders and rotary actuators: one solenoid pulse shifts the spool to pressurise the extend side, the opposite pulse switches the valve to retract. There is no return spring here - the spool simply remains where it was last pulsed, held by land friction and balanced pressure with zero holding current, so the actuator keeps its position even if the pilot signal drops. At Cv 1.65 (28.0 mm2 effective area) with a response of 0.05 s or less, it cycles up to 4 times per second and suits roughly Dia50-80 mm bores; the 4V320 body weighs 400 g and is sealed to IP65.
| Model | Airtac 4V Solenoid Valves 4V32010A-W |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | W |
| Exhaust port | W |
| 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 | 400 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. |
| 2 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -W | 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.
Dia63 push cylinders that square layers of cartons on a palletizer draw well within this valve's Cv 1.65 flow on 3/8in lines. The memory spool keeps each pusher extended or retracted after the PLC pulse ends, so a dropped signal cannot leave a pusher mid-stroke.
Pneumatic swing clamps and straight clamps around a Dia50 bore (about 980 N push at 0.5 MPa) suit this flow class. Because neither solenoid stays energised, panel wiring stays cool on long shifts and the clamp position is held between pulses; for guaranteed lock, add pilot-operated check valves at the ports.
Pop-up stops on a log deck or sorting line use Dia80 cylinders (about 2510 N push at 0.5 MPa) that must flip up and down all day. The 4 c/s switching limit and 0.05 s response keep pace with fast board feeds, and the 400 g body mounts cleanly on a manifold at the deck frame.
Sizing both ways: if your bore is smaller, step down to the 4V220 on the 4V200 body (Cv 1.0), a match for cylinders around Dia40 that push about 620 N at 0.5 MPa. If you need more flow or a bigger bore, step up to the 4V420 on the 4V400 body (Cv 2.82), suited to bores near Dia100 that push about 3900 N at 0.5 MPa. Run a single 4V320 for one dedicated actuator, or group several on a manifold base to build an integrated valve station. Ordering a drop-in replacement means matching all five points: body size (4V300), function (20 - double solenoid memory), port and thread (3/8in; PT, G or NPT), coil voltage (AC220V on this code) and electrical entry (terminal box versus grommet lead with 0.5 m flying wire).
Quick checklist
Cv 1.65 with a 28.0 mm2 effective area, response of 0.05 s or below, operating pressure 0.15-0.8 MPa (proof 1.2 MPa), up to 4 cycles per second, and a 4.5 VA draw on the 220V AC coil. That flow class fits double-acting cylinders of roughly Dia50-80 mm bore; air must be filtered to 40 um and lubrication is not required.
Yes, and mechanically rather than magnetically: with no return spring, the spool stays in the position it was last pulsed to, kept there by land friction and balanced pressure - there is no holding current and no magnetic latch. Treat this as position memory, not a brake; where a load must be positively locked, fit a pilot-operated check valve at the cylinder ports or a mechanical brake.
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