The AirTAC AirTAC 3V310 3/2 Solenoid Valve NO 1/4in NPT DC12V 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.
This is a 3-port, 2-position (3/2) solenoid valve with a normally open rest state: with the coil unpowered, the outlet is connected to the air supply, and only when the DC12V coil is energised does the valve vent the outlet to exhaust. The 3/4in... none of that matters here - what matters is that a 3/2 valve serves one actuator motion or one on/off air job. In normally open form it suits jobs where air should flow when controls are dead: a default-on blow-off, or a spring-return cylinder that must sit in one position through a power cut. The code also fixes the plumbing and wiring: a 1/4 inch NPT port, a DC12V coil, and a flying-lead entry that arrives as pre-attached wires rather than a DIN socket.
We stock the 3V31008NOFIT as a genuine AirTAC part and ship it with the NPT thread as ordered. The wider family covers both NC and NO states, five coil voltages (AC220V, DC24V, AC110V, AC24V, DC12V), DIN plug or flying-lead entry, and matching 3V-F manifold bases. Pressure range, flow and coil power for this family are figures we will read off the datasheet and confirm by email on request - just send the RFQ.
| Model | AirTAC 3V310 3/2 Solenoid Valve NO 1/4in NPT DC12V |
|---|---|
| Series | 3V310 |
| Valve type | 3/2-way (3-port, 2-position) |
| Initial state | Normally open |
| Port size | 1/4 in |
| Thread | NPT |
| Coil voltage | DC12V |
|---|---|
| Electrical entry | Flying lead (lead-out wire 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 |
| 3V310 | Body. |
|---|---|
| 1/4 in | Port size. M5, 06 = 1/8 in, 08 = 1/4 in, 10 = 3/8 in. |
| NO | Normally open: air passes until the coil is energised. |
| DC12V | Coil voltage. A = AC220V, B = DC24V, C = AC110V, E = AC24V, F = DC12V. |
| I | Electrical entry: I = flying lead, otherwise a DIN plug. |
| NPT | 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.
On a bottling line, a jet of shop air keeps labels dry ahead of the date coder. A normally open valve blows whenever control power drops, so a tripped PLC does not leave moisture sitting on the containers.
A spring-return clamp cylinder on a drill jig stays supplied when the DC12V control loop is dead, because the NO valve feeds it in the unpowered state - the workpiece stays gripped through a power cut until the coil is energised to vent it.
A 12V battery-and-panel control system on a remote water treatment skid uses this valve to pilot a larger process valve, with the flying-lead coil wired straight into the low-voltage loom.
The choices that shape this order are state, port, voltage and wiring. Normally open means air at the outlet whenever power is off, energising the coil shuts it and vents - the mirror image of NC, so pick NO when the fail-safe position of your actuator is 'supplied'. A 1/4 inch port gives more room than an M5 or 1/8 inch valve, which suits a larger single-acting cylinder or a higher blow demand; a 3/2 valve cannot drive a double-acting cylinder at any port size, since that needs the 5-port AirTAC 4V series. The DC12V coil must match your panel supply - it is fixed at order and cannot be rewired to another voltage. The flying-lead entry suits battery or solar-powered panels where 12V wiring is run directly. If you want many valves off one air feed and one wiring loom, the matching 3V-F manifold bases take several valves side by side. Because published flow figures for this family are not in our hands, ask us to check sizing against your actuator before you order - and if you need a 3-port valve with fully published flow and coil-power figures today, the documented AirTAC 3V2 (1/8 inch and 1/4 inch) and 3V3 (1/4 inch) direct-acting bodies carry exactly that in their own listings. On threads: PT is the manufacturer standard for this family, and this SKU is the NPT order option.
Confirm before you order
We do not hold a published specification sheet for this family, so we will not print numbers we cannot stand behind. Email us with your application and we will confirm the pressure range, flow figures and DC12V coil power from the datasheet on request. If you need a 3-port valve with those figures published on the page today, the AirTAC 3V2 (1/8 and 1/4 inch) and 3V3 (1/4 inch) direct-acting bodies have full published data in their own listings.
No. A 3/2 valve has one outlet, so it can pressurise or vent a single-acting (spring-return) cylinder, an air blow line, a clamping point or a vacuum generator - but a double-acting cylinder needs pressurisation at both ports, which takes a 5-port valve. For that job, use the AirTAC 4V series instead.
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Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.