Airtac 3V2 Solenoid Valve 3V206NOAI
The AirTAC Airtac 3V2 Solenoid Valve 3V206NOAI 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 voltageAC220V
- Electrical entryFlying lead (lead-out wire type)
- Flow (Cv)0.18
- Series3V2
About the Airtac 3V2 Solenoid Valve 3V206NOAI
The 3V206NOAI combines a normally open 3/2 function with a factory-fitted flying lead. The spring holds supply and outlet connected from the first breath of pressure, and energising the AC220V coil vents the outlet - air passes until you power the valve, the opposite logic of an NC type. The pre-wired lead-out means no separate DIN socket to order or plug in.
Direct-acting coaxial poppet construction gives a crisp shift with no pilot pressure needed. The PT1/8 port flows Cv 0.18 (3.2 mm2), the coil takes 7 VA, and the body is rated down to -102.2 kPa for vacuum duty. Genuine AirTAC product; send your spec for a quote.
Airtac 3V2 Solenoid Valve 3V206NOAI Technical Specifications
| Model | Airtac 3V2 Solenoid Valve 3V206NOAI |
|---|---|
| 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 | AC220V |
|---|---|
| Electrical entry | Flying lead (lead-out wire 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 3V206NOAI
| 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. |
| AC220V | Coil voltage. A = AC220V, B = DC24V, C = AC110V, E = AC24V, F = DC12V. |
| I | 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 3V206NOAI Is Used
Fixture cooling-air feeds
Welding fixtures in a robot cell keep a continuous air curtain over the lens: the NO valve feeds it as soon as pressure arrives, and the flying lead reaches the cell controller without extra wiring.
Vacuum ejector isolation
A venturi ejector on a bottle-capping line holds vacuum between cycles; energising the coil vents the line to release each bottle, comfortably within the -102.2 kPa rating.
Machine-mounted blow-off
A bench blow-off circuit that must be live by default uses the NO valve, with the lead-out wired directly to a foot-switch relay for hands-busy part cleaning.
Is the Airtac 3V2 Solenoid Valve 3V206NOAI the Right Part?
Check the code against five needs: 1/8in PT thread (G and NPT are catalogue options), normally open rest state, AC220V coil, flying-lead entry, and vacuum in the duty. Prefer a plug-in connection? Order the 3V206NOA with its DIN socket. If 220V is not on the panel, other coil codes in the 3V2 range cover AC110V, AC24V, DC24V and DC12V.
Down-size to 3V1 for small duties where a 3.0 W DC24V coil beats 7 VA, or to 3V2M when a shared manifold base outweighs flow (Cv 0.1). Step up to 3V3 for a 1/4in bore at Cv 0.62 - also vacuum-rated. For a double-acting cylinder, move to the 5-port AirTAC 4V series.
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 3V206NOAI FAQ
Effective area 3.2 mm2 and Cv 0.18 for the 1/8in port; 3.4 mm2 and Cv 0.19 for the 1/4in 3V208. Pressure range 0-0.8 MPa (0-114 psi), vacuum service to -102.2 kPa (0.1 MPa), temperature -20 to 70 C, coil power 7 VA AC or 7.0 W DC, protection IP65. Air should pass a 40 um or finer filter; lubrication is not required.
The I suffix means the coil leaves the factory with a wired lead-out instead of a DIN socket, so the electrician connects the wires directly and no plug is ordered separately. Function, flow and the -102.2 kPa vacuum rating are identical to the DIN-plug version of the same code.
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