Airtac 4V200 Solenoid Valve 4V220-08-A
The AirTAC Airtac 4V200 Solenoid Valve 4V220-08-A is a genuine 5/2-way double solenoid (memory) solenoid valve with A 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.
- Valve type5/2-way
- FunctionDouble solenoid (memory)
- Port sizeA
- Effective area17.0 mm²
- Flow (Cv)1.0
- Series4V200
About the Airtac 4V200 Solenoid Valve 4V220-08-A
This AirTAC 4V220-08A is a 5/2-way double-solenoid valve that directs compressed air to double-acting cylinders and actuators, and its defining feature is the memory spool: it stays in the last pulsed position even if power is cut, with no holding current required. The spool is held by land friction and balanced pressure—there is no spring to shift it back—so it is ideal for sequences where the actuator must remain in place during an E-stop or power cycle.
Built on the 4V200 mid-body platform with a 1/4-inch PT inlet and outlet, it delivers an effective area of 17.0 mm² (Cv 1.0) and suits cylinders in the ~Ø32–50 mm range. The AC220V coil draws 4.5 VA, and the valve responds in 0.05 s or less. The terminal-box entry keeps wiring tidy inside a control cabinet, and the aluminum-alloy body weighs 320 g.
Airtac 4V200 Solenoid Valve 4V220-08-A Technical Specifications
| Model | Airtac 4V200 Solenoid Valve 4V220-08-A |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | A |
| Exhaust port | A |
| 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.
Flow & Coil Options
| 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.
Model Code: Airtac 4V200 Solenoid Valve 4V220-08-A
| 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. |
| -A | 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.
Where the Airtac 4V200 Solenoid Valve 4V220-08-A Is Used
Clamping & Holding Fixtures
The memory spool keeps a clamp cylinder extended during a power-off tool change, avoiding part release without needing a constant signal or holding current.
Indexing & Diverting Gates
Pulse the solenoid to shift a diverter gate and it stays put until the opposite pulse arrives—ideal for conveyor sortation where the gate position must survive a line stop.
Assembly Presses & Pushers
Drives a double-acting pusher cylinder in a semi-automatic assembly station; the AC220V terminal-box wiring fits standard factory control panels directly.
Is the Airtac 4V200 Solenoid Valve 4V220-08-A the Right Valve?
Choose the 4V220-08A when you need a 5/2 valve that holds its last state without consuming power—perfect for clamp circuits or indexing tables where a spring-return valve would drop the load on power loss. If you are driving a smaller cylinder (below Ø25 mm), stepping down to the 4V100 series (Cv 0.6) often gives better fine-control; for larger bores or faster cycle rates above Ø63 mm, the 4V300 (Cv 1.65) provides the extra flow.
This valve can be mounted individually or on a manifold base to build a compact valve group. When replacing an existing unit, match five points: body size (4V200), function (double-solenoid 5/2), port and thread (1/4-inch PT), coil voltage (AC220V), and electrical entry (terminal box).
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 4V200 Solenoid Valve 4V220-08-A FAQ
The 4V220-08A is a double-solenoid memory valve. The spool remains in the position it was last pulsed to, held by friction and balanced pressure, so the cylinder stays where it was. It does not spring back to a home position. For suspended-load safety, always add a pilot-operated check valve or mechanical brake at the cylinder ports.
With an effective area of 17.0 mm² (Cv 1.0), the 4V200 body is a good match for double-acting cylinders in the ~Ø32–50 mm range in general industrial applications. Smaller cylinders may overshoot; larger ones may run slower than expected.
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