Airtac 3V2 Solenoid Valve 3V206NOE
The AirTAC Airtac 3V2 Solenoid Valve 3V206NOE is a genuine 3-port 2-position (3/2) solenoid valve with 1/8 in ports. It either feeds its outlet or vents it to exhaust, which is what makes it the valve for single-acting cylinders, on/off air blow, clamping, vacuum switching and pilot duty.
- Valve type3/2-way (3-port, 2-position)
- Initial stateNormally open
- Port size1/8 in
- Coil voltageAC24V
- Electrical entryDIN plug (DIN socket type)
- Flow (Cv)0.18
- Series3V2
About the Airtac 3V2 Solenoid Valve 3V206NOE
The AirTAC 3V206NOE is a 3/2-way, normally open solenoid valve with a PT1/8 port and an AC24V coil on a DIN plug connection. In the rest state it passes air from supply to outlet; energising the single solenoid shuts that path and vents the outlet to exhaust. That behaviour suits circuits where the line must stay live when power fails.
It is direct-acting with spring return and a coaxial poppet that seals on the seat for tight shutoff at useful flow: 3.2 mm2 effective area, Cv 0.18 per port. The valve is also rated for negative-pressure service from -102.2 kPa to 0.1 MPa, so one valve type can switch both pressure and vacuum circuits on the same machine.
Airtac 3V2 Solenoid Valve 3V206NOE Technical Specifications
| Model | Airtac 3V2 Solenoid Valve 3V206NOE |
|---|---|
| Series | 3V2 |
| Valve type | 3/2-way (3-port, 2-position) |
| Function | Direct-acting, single solenoid, spring return |
| Initial state | Normally open |
| Port size | 1/8 in |
| Thread | PT |
| Coil voltage | AC24V |
|---|---|
| Electrical entry | DIN plug (DIN socket type) |
| Coil power | 7 VA |
| Operating pressure | 0-0.8 MPa (0-114 psi) |
| Vacuum service | Rated -102.2 kPa to 0.1 MPa |
| Flow coefficient | Cv 0.18 (3.2 mm2 effective area) |
| Temperature | -20 to 70 C |
| Construction | Coaxial shut-off (poppet), direct-acting, spring return |
| Protection | IP65 (DIN 40050) |
| Medium | Air, filtered by a 40 µm or finer element. Lubrication not required. |
Figures follow the official AirTAC 3V2 catalogue. Confirm coil voltage and thread (PT / NPT / G) against the product label before wiring.
Model Code: Airtac 3V2 Solenoid Valve 3V206NOE
| 3V2 | Body — sets the flow, the coil power and whether vacuum is rated. |
|---|---|
| 1/8 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. |
| AC24V | Coil voltage. A = AC220V, B = DC24V, C = AC110V, E = AC24V, F = DC12V. |
| — | Electrical entry: I = flying lead, otherwise a DIN plug. |
| PT | Port thread. PT ships from stock; G and NPT are available to order. |
What a 3/2 Valve Does
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.
Where the Airtac 3V2 Solenoid Valve 3V206NOE Is Used
Pick-and-place vacuum cups on a packaging line
On a carton-packing vacuum gripper, the normally open valve holds vacuum on the cup while de-energised and breaks it only when the PLC energises the coil, so the grip survives an E-stop.
Vent line on a laboratory autoclave
Sterilisers and lab autoclaves with 24 V AC control circuits keep the vent path open at rest; the coil closes it only during the holding phase of the cycle.
Pilot stage for a large process valve
A textile plant uses the normally open 3V2 to pilot a bigger air-operated process valve, keeping the pilot line supplied whenever 24 V AC control power drops.
Is the Airtac 3V2 Solenoid Valve 3V206NOE the Right Part?
This AC24V DIN-plug version fits machines with a 24 V AC control transformer. Size both ways before you commit: step down to 3V1 for small duties where low coil power matters (3.0 W on DC24V), or to 3V2M when a dense multi-station manifold matters more than flow (Cv 0.1); step up to 3V3 (1/4in, Cv 0.62, also vacuum-rated) when you need much more flow. Match five points before ordering: 1/8in port with PT as the standard thread (G and NPT are catalogue options), normally open state, AC24V coil, DIN plug entry, and any vacuum duty. For a double-acting cylinder, move to the AirTAC 4V series instead.
Confirm before you order
- ✓ Port size and thread (PT from stock; G / NPT to order)
- ✓ Initial state — NC or NO, ordered up front
- ✓ Coil voltage matches your controller output
- ✓ Electrical entry — DIN plug or flying lead
- ✓ Single valve, bare base, or complete assembly
- ✓ Single-acting duty, not double-acting
Installation & Wiring Notes
- check Use clean air filtered to 40µm or finer.
- check Stay within 0-0.8 MPa (0-114 psi) operating pressure.
- check Match the coil voltage to your controller output.
- check Use the manual override to test before powering up.
- check Leave the exhaust port clear, or fit a silencer.
- check Wiring by qualified personnel, per AirTAC documentation.
Airtac 3V2 Solenoid Valve 3V206NOE FAQ
Both port sizes share one body: 3V206 (PT1/8) has 3.2 mm2 effective area, Cv 0.18; 3V208 (PT1/4) has 3.4 mm2, Cv 0.19. Operating pressure is 0-0.8 MPa, with a vacuum rating of -102.2 kPa to 0.1 MPa. Temperature range is -20 to 70 C. Coils draw 7 VA on AC and 7.0 W on DC, and the valve meets IP65 (DIN 40050). Supply air should be filtered to 40 um or finer; lubrication is not required.
Choose NO when the outlet must pass air while the coil is off and vent only when energised - for example a blow line, clamp or vacuum circuit that must stay live through a power failure. If your circuit needs air only when energised, order the NC code instead: same body, different state letter.
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