The AirTAC Airtac 4V Solenoid Valves 4V210-08AT is a genuine 5/2-way single solenoid (spring return) solenoid valve with 08AT 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 4V210-08AT is a single-solenoid, 5/2-way pneumatic directional control valve from the AirTAC 4V200 series, configured with 1/4-inch NPT ports and an AC220V terminal-box coil. It directs compressed air to double-acting cylinders and actuators, energizing to shift the spool and returning to its home position via a mechanical spring when the electrical signal is removed. This spring-return action makes it a safe default for applications where the cylinder must retract or stop on power loss.
Built on the mid-body 4V200 platform, this valve delivers an effective area of 17.0 mm² (Cv 1.0), suiting it for driving cylinders in the ~Ø32-50 mm range. The AC220V coil draws 4.5 VA, and the aluminum-alloy body keeps weight at just 220 g. With a response time of 0.05 seconds or less and IP65 protection, it provides fast, reliable cycling in industrial environments.
| Model | Airtac 4V Solenoid Valves 4V210-08AT |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 08AT |
| Exhaust port | 08AT |
| 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 | 220 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. |
| 1 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -08AT | 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.
Actuates pneumatic gates on packaging and sorting conveyors. The spring-return function ensures the gate retracts to a safe position if power is interrupted, preventing jams.
Controls double-acting cylinders for clamping, pressing, and ejecting on assembly stations. The AC220V coil and NPT ports integrate directly into standard factory power and air networks.
Drives pusher arms on small to medium transfer lines. The Cv 1.0 flow capacity provides a good balance of speed and control for moving parts between stations.
Choose the 4V210-08AT when you need a single-solenoid 5/2 valve with NPT threading and an AC220V power supply. The NPT ports ensure a robust, self-sealing fit in North American piping systems. For smaller cylinders (below Ø32 mm), stepping down to the 4V100 series (Cv 0.6) can save energy and space; for larger bores or faster cycle times, the 4V300 series (Cv 1.65) provides the necessary flow.
When replacing an existing valve, match these five points: the 4V200 body size, the 5/2 single-solenoid function, the 1/4-inch port size with NPT thread, the AC220V coil voltage, and the terminal-box electrical entry. If you need to hold the cylinder's last position during a power outage, consider the double-solenoid 4V220 model instead. This valve can be used individually or ganged on a manifold base for multi-cylinder control.
Quick checklist
With an effective area of 17.0 mm² (Cv 1.0), it is well-suited for double-acting cylinders with bore sizes from approximately 32 mm up to 50 mm. For smaller cylinders, a 4V100 series valve may be more economical, while larger or faster cylinders will benefit from the higher flow of a 4V300 series valve.
This is a single-solenoid, spring-return valve. When the AC220V coil is de-energized, the internal spring forces the spool back to its default position. This will cause the connected double-acting cylinder to retract or extend, depending on how the ports are plumbed, making it a fail-safe choice for non-holding applications.
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