AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0)
The AirTAC AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0) is a genuine 5/2-way single solenoid (spring return) solenoid valve with X0 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
- FunctionSingle solenoid (spring return)
- Port sizeX0
- Effective area17.0 mm²
- Flow (Cv)1.0
- Series4V200
About the AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0)
The 4V21008-X0 belongs to AirTAC's 4V200 family and is the 1/4in PT, single-solenoid 5/2 version of that body. It directs compressed air to a double-acting cylinder or actuator: one solenoid coil, one return spring. Energise it and the piston side you choose fills while the opposite side vents through the 1/8in exhaust; de-energise and the spring pushes the spool home, sending the cylinder back to its rest stroke. Because the valve cannot stay mid-position, the machine stops in a predictable state whenever the signal is lost.
Flow capability sits at an effective area of 17.0 mm2, Cv 1.0, with a cycling rate of up to 5 strokes per second and a response time of 0.05 s or less - comfortably matched to roughly O32-50 mm bores, such as an O40 cylinder producing about 63 kgf of push at 0.5 MPa. The aluminium body weighs 220 g, runs on 0.15-0.8 MPa of air filtered by a 40 um element, needs no lubrication, carries an IP65 terminal box and can be ganged onto a manifold base with other 4V200 valves.
AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0) Technical Specifications
| Model | AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0) |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | X0 |
| Exhaust port | X0 |
| 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.
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 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0)
| 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. |
| -X0 | 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 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0) Is Used
Carton kick-off on a case packer
A Cv 1.0, 17.0 mm2 flow path cycles an O40 pusher cylinder (about 63 kgf at 0.5 MPa) at up to 5 strokes per second, and the spring return guarantees the pusher clears the lane the instant the PLC signal drops.
Fixture clamp on a CNC milling fixture
Energise to close a double-acting swing clamp; cut power and the spring vents the clamp side, so an E-stop during tool change cannot leave the fixture gripping the part. The IP65 terminal box suits coolant-mist zones.
Slide feed on a small assembly press
Sub-0.05 s response times the extend stroke of an O32 feed slide (around 40 kgf push at 0.5 MPa) tightly enough for pin-insertion tacts, while the 220 g body keeps the moving manifold light.
Is the AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0) the Right Valve?
Step down to the 4V100 body (Cv 0.6) when the load is a light O32 bore doing slow work - around 40 kgf of push at 0.5 MPa - and cycle speed is not critical; step up to the 4V300-08 (Cv 1.65) once you move to an O50 bore, roughly 98 kgf of push at 0.5 MPa, or need shorter stroke times than this valve's 5 cycles per second allows. Pick the single-solenoid layout shown here when a lost signal must retract the actuator; the double-solenoid 20 code suits two-pulse, position-keeping circuits, and 5/3 codes (30C/30E/30P) only when a mid-stroke hold, float or both-sides-pressurise is required - at the cost of Cv 0.8 and 3 cycles per second. Single valves can later share a manifold base.
For a like-for-like replacement, match five points: 4V200 body, function digit 10, 1/4in port in PT thread, your supply voltage on the coil (this SKU carries no voltage code, so confirm the coil separately), and terminal-box entry as built here.
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 4V210-08 Solenoid Valve, 4V200 Series (4V21008-X0) FAQ
It is rated for double-acting cylinders and actuators in the O32-50 mm class - an O40 bore gives about 63 kgf of push at 0.5 MPa. Key figures: effective area 17.0 mm2 (Cv 1.0), up to 5 cycles per second, response 0.05 s or below, working pressure 0.15-0.8 MPa with 1.2 MPa proof, and air filtered to 40 um.
The single-solenoid design is spring return: the moment the coil de-energises, the spring shifts the spool and the cylinder vents back to its home stroke within about 0.05 s. That makes it a good choice for clamps and pushers that must clear the part on shutdown, but it is not a load brake - for a suspended load, add pilot-operated check valves at the ports or a mechanical brake.
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