The AirTAC AirTAC 3V21008NCBG 3/2 Solenoid Valve NC 1/4in DC24V G is a genuine 3-port 2-position (3/2) solenoid valve with 1/4 in ports. A 3/2 valve either feeds its outlet or vents it to exhaust, so it suits single-acting cylinders, air blow, clamping, vacuum switching and pilot duty. We stock this code and confirm its published figures from the datasheet on request.
The AirTAC 3V21008NCBG is a 3-port, 2-position solenoid valve from the 3V2x0 family. Three ports - supply, outlet and exhaust - and two states mean it either feeds air to the outlet or vents the outlet to exhaust, which is exactly what a single-acting or spring-return actuator needs. This SKU is normally closed: with no power on the DC24V coil the outlet holds no air, and the downstream actuator simply sits in its spring position. Energise the coil and air passes from supply to outlet; cut power and the outlet exhausts again. The 1/4in port with G thread gives more generous connections than the 1/8in sizes in the same family.
We stock this valve as a genuine AirTAC part and ship it alongside the rest of the family: both NC and NO initial states, five coil voltages (AC220V, DC24V, AC110V, AC24V, DC12V), DIN plug and flying-lead entries, and 3V-F manifold bases for multi-valve machines. Pressure, flow and coil power are not published on this page, so send the RFQ and we will read those figures off the datasheet for you before you commit.
| Model | AirTAC 3V21008NCBG 3/2 Solenoid Valve NC 1/4in DC24V G |
|---|---|
| Series | 3V210 |
| Valve type | 3/2-way (3-port, 2-position) |
| Initial state | Normally closed |
| Port size | 1/4 in |
| Thread | G (BSPP parallel) |
| Coil voltage | DC24V |
|---|---|
| Electrical entry | DIN plug (DIN socket type) |
| Coil power | Confirm from the datasheet — ask us |
| Operating pressure | Confirm from the datasheet — ask us |
| Flow coefficient | Confirm from the datasheet — ask us |
| Temperature | Confirm from the datasheet — ask us |
| Protection | Confirm from the datasheet — ask us |
| 3V210 | Body. |
|---|---|
| 1/4 in | Port size. M5, 06 = 1/8 in, 08 = 1/4 in, 10 = 3/8 in. |
| NC | Normally closed: no air at the outlet until the coil is energised. |
| DC24V | Coil voltage. A = AC220V, B = DC24V, C = AC110V, E = AC24V, F = DC12V. |
| — | Electrical entry: I = flying lead, otherwise a DIN plug. |
| G (BSPP parallel) | Port thread. PT ships from stock; G and NPT are available to order. |
A 3/2 valve has three ports — supply, outlet and exhaust — and two states. It either feeds the outlet or vents it to exhaust, and that is the whole job.
That makes it the right valve for a single-acting (spring-return) cylinder, on/off air blow, a clamp, switching a vacuum generator or suction cup, and piloting a larger valve.
It cannot run a double-acting cylinder. A double-acting cylinder needs air alternately on two sides, which takes a 5-port valve — the AirTAC 4V series.
A NC 3/2 valve energises to clamp and vents to release, so a power cut leaves the fixture in its safe spring position - the standard arrangement on drill and weld fixtures.
Switched from the machine control on a DC24V signal, the valve gives simple on/off air to a nozzle that clears chips and coolant off the part between cycles.
A compact 3/2 valve sends and vents the pilot signal that strokes a bigger pneumatically operated valve on a packaging or filling line.
Start with the state. NC is the fail-safe pick: de-energise and the outlet exhausts, so a spring-return clamp moves to its defined rest direction on any power loss. If your actuator must stay pressurised when power drops, that is the NO variant instead - we stock both. The 1/4in port is the step up from 1/8in in this family and suits a larger single-acting cylinder or a blow line with more air behind it. The DC24V coil must match your panel supply, because a solenoid coil cannot be rewired for a different voltage - order the code that matches the supply, not a near-miss. DIN plug entry means the coil takes a plug-in connector rather than a pre-wired flying lead, which keeps cabinet wiring tidy and replacement simple. For several valves on one machine, a 3V-F manifold base shares a single air feed and one wiring run across all stations. Because published flow figures for this family are not in our hands, ask us to confirm sizing against your actuator before ordering; if you need a 3-port valve with full published figures today, the documented 3V2 and 3V3 bodies carry them, and a double-acting cylinder belongs with the AirTAC 4V series, not any 3/2 valve.
Confirm before you order
We do not publish performance numbers for this family, and we will not guess them. Send the RFQ and we will confirm operating pressure, flow and coil power straight from the AirTAC datasheet. If you need a fully specified 3-port valve right now, the documented 3V2 and 3V3 valve bodies have published figures on their own product pages.
No. A 3/2 valve has one outlet, so it can only feed or vent a single-acting, spring-return actuator or an air blow line. A double-acting cylinder needs pressure at two ports in turn, which takes a 5-port valve - use the AirTAC 4V series for that job. For suction cups or vacuum generators, ask us to confirm suitability before ordering.
Genuine AirTAC parts produced by the AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.