The AirTAC Airtac 4V Solenoid Valves 4V220-08FG is a genuine 5/2-way double solenoid (memory) solenoid valve with 08FG ports and an effective area of 17.0 mm² (Cv 1.0). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
The AirTAC 4V220-08FG is a 5/2-way double-solenoid pneumatic directional valve built on the proven 4V200 body. It directs compressed air to double-acting cylinders and actuators, and because it uses two solenoids with no return spring, the spool stays in its last-pulsed position even when power is removed—a true memory function that holds the actuator state without consuming holding current. This G-thread (BSPP parallel) model comes pre-wired with a 0.5 m flying-lead grommet entry and a DC12V coil rated at just 2.5 W.
With an effective flow area of 17.0 mm² (Cv 1.0) and a maximum operating frequency of 5 cycles per second, the 4V220-08FG suits ~Ø32–50 mm double-acting cylinders in general automation. The spool shifts in ≤0.05 s, the IP65-rated aluminium body handles 0.15–0.8 MPa, and the valve can be banked on a manifold base for multi-station control. Note that the memory hold relies on spool friction and balanced pressure—it is not a magnetic latch—so for suspended loads a separate mechanical brake or pilot-operated check valve is required.
| Model | Airtac 4V Solenoid Valves 4V220-08FG |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | 08FG |
| Exhaust port | 08FG |
| Effective area (Cv) | 17.0 mm² (Cv 1.0) |
| 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 | 5 cycle/sec |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | 320 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 | 17.0 mm² |
|---|---|
| Flow coefficient | Cv 1.0 |
| 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. |
|---|---|
| 2 | Body size (4V200) — sets port & flow. |
| 2 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -08FG | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V210 (single), 4V220 (double), 4V230C/E/P (5/3 center). Add the voltage suffix when ordering.
In a conveyor stop or palletising station, a clamp cylinder must stay retracted during an E-stop to avoid dropping a product. The 4V220-08FG memory spool holds the last position without power, keeping the clamp safely retracted until the line is reset.
A double-acting slide table on an assembly cell needs to dwell at either end without continuous coil power. Pulsing one solenoid extends the slide; it stays there until the opposite coil is pulsed, reducing heat buildup in the 2.5 W DC12V coil.
The DC12V coil and low 2.5 W draw make the 4V220-08FG suitable for mobile hydraulic-pneumatic tools or AGV-mounted actuators where only a 12 V battery supply is available. The memory function saves energy by not holding a solenoid energised.
Choose the 4V220-08FG when your application needs a 5/2 valve that must hold its last position after a power-down or emergency stop, without a spring forcing it back to a default state. The double-solenoid memory action is ideal for sequences where the cylinder must remain extended or retracted until the opposite coil is pulsed. If your cylinder is smaller than Ø32 mm, the 4V100 series (Cv 0.6) may give finer control; for fast-cycling Ø63 mm and larger bores, step up to the 4V300 (Cv 1.65).
This SKU is specifically a 4V200-body, 5/2 double-solenoid, 1/4 in G-thread (BSPP parallel) port, with a DC12V coil and a grommet-style electrical entry. When replacing a valve, match all five points: body size (4V200), function (double 5/2), port size and thread (1/4 in G), coil voltage (DC12V), and electrical entry (grommet with flying lead). A manifold base is available if you are building a compact valve terminal.
Quick checklist
No. It is a double-solenoid valve with a memory spool. A short pulse to one coil shifts the spool, and it stays in that position mechanically until the opposite coil is pulsed. No holding current is required, and the hold is not magnetic—it relies on spool friction and balanced air pressure.
'08' indicates the main port size is 1/4 inch. 'F' specifies a DC12V coil (2.5 W). 'G' at the end means the ports are G-thread (BSPP parallel), which seals with a bonded washer or O-ring on a flat face, unlike the tapered PT thread. The electrical entry is a grommet with a 0.5 m pre-wired flying lead.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.