Airtac 3V2 Solenoid Valve 3V206NOC
The AirTAC Airtac 3V2 Solenoid Valve 3V206NOC 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 voltageAC110V
- Electrical entryDIN plug (DIN socket type)
- Flow (Cv)0.18
- Series3V2
About the Airtac 3V2 Solenoid Valve 3V206NOC
The 3V206NOC carries an AC110V coil, aimed at control cabinets and machines wired for 110 V AC rather than the common 220 V supply. It is a normally open 3/2-way direct-acting valve with spring return: the outlet stays fed while de-energised, and switching the single solenoid closes the flow path and exhausts the line. Single-acting cylinders, clamps, blow nozzles and pilot stages are the intended loads.
A coaxial shut-off poppet handles the switching, sized at Cv 0.18 (3.2 mm2) per port on the PT1/8 body. The valve is IP65 (DIN 40050) and rated for vacuum duty from -102.2 kPa to 0.1 MPa.
Airtac 3V2 Solenoid Valve 3V206NOC Technical Specifications
| Model | Airtac 3V2 Solenoid Valve 3V206NOC |
|---|---|
| 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 | AC110V |
|---|---|
| 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 3V206NOC
| 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. |
| AC110V | 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 3V206NOC Is Used
Vacuum hold-down on a CNC router
With a -102.2 kPa rating, the valve opens and closes the vacuum line that clamps sheet material to a CNC router bed.
Pilot stage on a press circuit
The AC110V coil pilots a larger process valve, staying open at rest and closing when the controller energises the solenoid.
Bottling filler venting
Normally open behaviour keeps filler nozzles supplied until the machine logic switches the valve to vent the line between fills.
Is the Airtac 3V2 Solenoid Valve 3V206NOC the Right Part?
If the flow demand is modest, a 3V1 saves power - 3.0 W on DC24V versus 7 VA here - while a 3V2M trades flow (Cv 0.1) for packing many stations onto one manifold base. When Cv 0.18 is not enough, jump straight to the 3V3: 1/4in, Cv 0.62 and still vacuum-rated, because the 1/4in step within the 3V2 family reaches only Cv 0.19.
Confirm five things when ordering: the 1/8in port and thread (PT is standard on this family; G and NPT are catalogue options), normally open initial state, AC110V coil, DIN plug entry, and any vacuum requirement. 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 3V206NOC FAQ
Effective area and Cv per port are 3.2 mm2 and 0.18 for this 1/8in valve (1/4in 3V208: 3.4 mm2, Cv 0.19). Working pressure is 0-0.8 MPa, and the vacuum rating runs from -102.2 kPa to 0.1 MPa. Temperature limits are -20 to 70 C, the AC110V coil absorbs 7 VA (DC coils 7.0 W) and ingress protection is IP65 (DIN 40050).
Yes - unlike the 3V1 and 3V2M bodies, the 3V2 is rated for negative pressure from -102.2 kPa to 0.1 MPa, so it can interrupt vacuum service as well as compressed air. The source lists the rating only; vacuum flow and pump-down figures should be confirmed from the datasheet via RFQ.
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