AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008B-NT)
The AirTAC AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008B-NT) is a genuine 5/2-way single solenoid (spring return) solenoid valve with NT 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 sizeNT
- Effective area17.0 mm²
- Flow (Cv)1.0
- Series4V200
About the AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008B-NT)
AirTAC built the 4V210-08B-NT for North American pipework: the T in the code specifies NPT threads on the 1/4 in ports, so it screws straight into NPT manifolds and fittings with no adapter bushings. The function is 5/2 single solenoid - power the coil to shift, lose the signal and the spring snaps the spool back, reversing a double-acting cylinder. Effective area is 17.0 mm2, Cv 1.0.
Power arrives at a terminal box from a DC24V coil rated 3.0 W: land the two cores on the screw terminals of the IP65 housing and seal your own conduit gland to whatever length the panel needs. Shifting takes 0.05 s or less and the aluminum valve weighs 220 g, which keeps plates light when several valves sit side by side. It suits double-acting cylinders from about O32 to O50 mm bore.
AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008B-NT) Technical Specifications
| Model | AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008B-NT) |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | NT |
| Exhaust port | NT |
| 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 (4V21008B-NT)
| 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. |
| -NT | 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 (4V21008B-NT) Is Used
Palletiser layer pusher
Squares carton layers on a US-built palletiser; NPT1/4 threads match the machine's original galvanised piping and Cv 1.0 keeps an O45 mm pusher stroke quick and consistent at 0.5 MPa.
CNC router hold-down clamp
The terminal-box wiring drops straight into the 24 V control transformers standard on American machine tools; with the signal off, the spring shifts the spool so the double-acting clamp returns to its unclamped rest state between panels.
Case diverter on a sorting conveyor
Deflects corrugated cases between lanes on a distribution sorter; at up to 5 cycles per second the valve out-paces most divert-timing requirements, and the NPT ports accept off-the-shelf US fitting brands without special orders.
Is the AirTAC 4V210-08 Solenoid Valve, 4V200 Series (4V21008B-NT) the Right Valve?
Downsize to the 4V100 body (Cv 0.6) when the actuator is an O32 mm bore delivering roughly 8 kgf push at 0.5 MPa; upsize to the 4V300 (Cv 1.65) if an O50 mm bore pushing about 20 kgf must stroke faster than Cv 1.0 permits. If the cylinder should hold its last pulsed position, the double-solenoid 4V220 is the pick; for a true centre condition step to a 4V230C/E/P and accept the drop to Cv 0.8 and 3 cycles/s. Group several valves on one 4V200 manifold base to simplify piping. Replacements must agree on: 4V200 body, function 10, 1/4 in NPT port, DC24V coil, 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 (4V21008B-NT) FAQ
Flow is Cv 1.0 across a 17.0 mm2 effective area (AirTAC rates flow by chart rather than one L/min value), response is 0.05 s or less, operating pressure spans 0.15-0.8 MPa with 1.2 MPa proof, maximum frequency is 5 cycles/s, the coil takes 3.0 W at DC24V, protection is IP65, temperature range -20 to +70 C, and weight is 220 g.
Only the port style: T specifies NPT threads instead of the standard PT (Rc) taper, so no adapter bushings are needed on US piping. Everything else mirrors the 4V210-08B - 5/2 spring-return single-solenoid function, DC24V terminal-box coil, Cv 1.0, 17.0 mm2 area, 220 g - and PT or G (BSPP) versions exist if your plant standardises on other threads.
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