AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008E-W)
The AirTAC AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008E-W) is a genuine 5/2-way single solenoid (spring return) solenoid valve with W 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 sizeW
- Effective area17.0 mm²
- Flow (Cv)1.0
- Series4V200
About the AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008E-W)
The 4V21008E-W is a spring-return 5/2 directional control valve from the AirTAC 4V200 range. Its single solenoid drives a double-acting cylinder one way for as long as the coil holds, and an internal spring snaps the spool - and the cylinder rod - back as soon as the signal is removed, making it a natural fit for duties where the retract position must always be the resting state.
Rated at Cv 1.0 (17.0 mm2 effective area), it covers ~O32-50 mm bores: a 40 mm cylinder gets around 64 kgf of push at 0.5 MPa. The valve cycles up to 5 times per second and reacts in 0.05 s or less. The E coil in this listing runs on AC24V at 5.0 VA into a terminal box, with 1/4in PT tapered ports. The 220 g aluminium-alloy body is IP65 to DIN40050, needs no lubrication, and accepts a locking or non-locking manual override.
AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008E-W) Technical Specifications
| Model | AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008E-W) |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | W |
| Exhaust port | W |
| 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 (4V21008E-W)
| 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. |
| -W | 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 (4V21008E-W) Is Used
CNC fixture clamping
An O50 swing clamp on an aluminium-machining fixture delivers about 100 kgf at 0.5 MPa; if the AC24V signal drops, the spring opens the clamp instead of trapping the part.
Bakery tray push-off
Dough trays are nudged off a conveyor with a 40 mm cylinder - around 64 kgf of push at 0.5 MPa - at up to 5 cycles per second from this Cv 1.0 valve.
Roaster hopper slide gate
A slide gate above a coffee roaster's bean feed opens while energised and falls closed on the return spring, so a wiring fault cannot leave the hopper pouring.
Is the AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008E-W) the Right Valve?
Light O32 markers with short cycles can drop to the 4V100 body (Cv 0.6); heavier O63 actuators pushing ~159 kgf at 0.5 MPa need the 4V300 (Cv 1.65) to keep speed up. This single-solenoid spring-return layout suits machines that must retract on signal loss; if the rod must stay put when power fails, pick the double-solenoid 4V220 (memory) or a 4V230C closed-centre 5/3 instead. Mount singly or on a manifold base sharing one supply. To replace an existing unit, check five points: body size 4V200, function 10 (single solenoid, 5/2), 1/4in PT ports, coil voltage letter E (AC24V) and terminal-box entry.
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 (4V21008E-W) FAQ
Key numbers: Cv 1.0 and 17.0 mm2 effective area, maximum 5 cycles per second, operating band 0.15-0.8 MPa with a 1.2 MPa proof limit, activating response of 0.05 s or better, and a 5.0 VA AC24V coil in a terminal box. It weighs 220 g, is IP65-rated, and the supply air should pass a 40 um filter.
It is a like-for-like replacement if the five code elements agree: 4V200 body, function 10 (single solenoid, 5/2, spring return), 1/4in PT thread, voltage letter E (AC24V, 5.0 VA) and terminal entry; it also mounts on any 4V200 manifold base. Remember the spring-return rule: with no signal the valve always vents and retracts the double-acting cylinder, so keep a pilot-operated check valve or a mechanical stop wherever a load must be held.
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