Airtac 3V2M Solenoid Valve 3V2MNCF-20F
The AirTAC Airtac 3V2M Solenoid Valve 3V2MNCF-20F 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 closed
- Port size1/8 in
- Coil voltageDC12V
- Electrical entryDIN plug (DIN socket type)
- Stations20
- Flow (Cv)0.1
- Series3V2M
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac 3V2M Solenoid Valve 3V2MNCF-20F
The 3V2MNCF-20F arrives as a full 20-station package: twenty 3/2 normally closed valve bodies seated on one 3V2M manifold base, each coil rated at 7.0 W on DC12V and terminated through a DIN plug socket. Every valve is direct-acting with spring return and a coaxial shut-off poppet, so each station vents its outlet when de-energised and only feeds air while its coil is held. With PT1/8 ports and a Cv of 0.1 per station, this dense block suits control duties where footprint matters more than per-station flow.
Because all twenty valves share one air supply and one wiring route on the same base, commissioning a machine with twenty single-acting outputs becomes a single mounting job rather than twenty separate plumbing tasks. A 40 um or finer filtered air supply with no lubrication keeps the internals clean, and each station has a manual override for testing outputs before the coils are even connected. One caution before ordering: the normally closed state is built into the valve at manufacture, and reversing the base gasket will not convert it.
Airtac 3V2M Solenoid Valve 3V2MNCF-20F Technical Specifications
| Model | Airtac 3V2M Solenoid Valve 3V2MNCF-20F |
|---|---|
| Series | 3V2M |
| Valve type | 3/2-way (3-port, 2-position) |
| Function | Direct-acting, single solenoid, spring return |
| Initial state | Normally closed |
| Item form | Complete assembly — 20 valves on a shared base |
| Exhaust | Centralised exhaust |
| Port size | 1/8 in |
| Thread | PT |
| Coil voltage | DC12V |
|---|---|
| Electrical entry | DIN plug (DIN socket type) |
| Coil power | 7.0 W |
| Operating pressure | 0-0.8 MPa (0-114 psi) |
| Vacuum service | Not rated for vacuum |
| Flow coefficient | Cv 0.1 |
| Temperature | -20 to 70 C |
| Construction | Coaxial shut-off (poppet), base-mounted, spring return |
| Protection | IP65 (DIN 40050) |
| Medium | Air, filtered by a 40 µm or finer element. Lubrication not required. |
Figures follow the official AirTAC 3V2M catalogue. Confirm coil voltage and thread (PT / NPT / G) against the product label before wiring.
Model Code: Airtac 3V2M Solenoid Valve 3V2MNCF-20F
| 3V2M | 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. |
| NC | Normally closed: no air at the outlet until the coil is energised. |
| DC12V | Coil voltage. A = AC220V, B = DC24V, C = AC110V, E = AC24V, F = DC12V. |
| — | Electrical entry: I = flying lead, otherwise a DIN plug. |
| 20F | 20 stations in one assembly, centralised exhaust. |
| 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 3V2M Solenoid Valve 3V2MNCF-20F Is Used
Multi-station clamping on an assembly fixture
Twenty spring-return clamp cylinders on an automotive sub-assembly jig each need their own 3/2 feed-and-vent valve. The 3V2MNCF-20F supplies all twenty from one block, and the normally closed state guarantees every clamp stays vented - and released - until its DC12V coil is deliberately energised.
Zoned blow-off on a bottling line
A packaging machine uses short air pulses to clear labels and dust from twenty bottle positions. Each station gets its own NC valve on the shared manifold, while the centralised exhaust collects all the vented pulse air into one ducted port instead of twenty loose mufflers.
Compact I/O block for single-acting pilot duty
A machine builder replaces a wiring loom of twenty individually mounted valves with one 3V2MNCF-20F panel: one supply connection, one wiring run to the DIN plug sockets, and a manual override on each station so technicians can exercise any pilot output during commissioning.
Is the Airtac 3V2M Solenoid Valve 3V2MNCF-20F the Right Part?
Choose the 3V2MNCF-20F when you need maximum station density on a DC12V control supply and each output is a small single-acting task. The flow trade-off is real: the Cv 0.1 path runs through the base, roughly half the Cv 0.18 an individually-ported 3V2 gives at 1/8 in. If any station needs more flow, mix in or step up to 3V2 (Cv 0.18 at 1/8 in, 0.19 at 1/4 in, vacuum-rated) or 3V3 (Cv 0.62 at 1/4 in, also vacuum-rated); 3V1 at 3.0 W DC is the leaner option for low-power duties. A double-acting cylinder needs a 5-port 4V valve instead. Size the DC12V supply for the worst case: twenty coils at 7.0 W each draw about 140 W, close to 11.7 A at 12 V if every station energises at once.
Before confirming the order, lock down all five decision points: normally closed initial state (it cannot be changed after purchase - no gasket flip will convert it), DC12V coil voltage, DIN plug entry, 20 stations on this base, and centralised exhaust where all stations vent through one shared port. PT thread is the standard; G and NPT are order options you must specify.
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 Blank any unused station on the base before pressurising.
- check Wiring by qualified personnel, per AirTAC documentation.
Airtac 3V2M Solenoid Valve 3V2MNCF-20F FAQ
It is a 20-station 3V2M manifold assembly of 3/2 normally closed direct-acting valves with spring return, PT1/8 ports and a Cv of 0.1 per station. Operating pressure is 0-0.8 MPa (0-114 psi), temperature range -20 to 70 C, coil power 7.0 W on DC12V, protection IP65 (DIN 40050), air filtered to 40 um or finer with no lubrication required, and a manual override is fitted. It carries no vacuum rating.
No. The initial state of a 3V2M valve is fixed by how it is built at the factory, and AirTAC states explicitly that reversing or flipping the dedicated base gasket does not convert NC to NO. If you need a normally open station, order 3V2MNO with the F voltage code instead. Also note that each 3/2 valve drives single-acting spring-return cylinders, blow and pilot loads only - a double-acting cylinder requires a 5-port valve from the AirTAC 4V series.
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