The AirTAC Airtac 4V Solenoid Valves 4V41015AT is a genuine 5/2-way single solenoid (spring return) solenoid valve with 41015AT ports and an effective area of 48.0 mm² (Cv 2.82). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
The 4V410-15AT is a single-solenoid 5/2 directional valve that switches compressed air between the two ports of a double-acting cylinder. Energise the AC220V coil and the spool shifts; cut power and an internal spring returns the spool to its rest position, so the machine must hold the electrical signal for as long as the cylinder is to stay advanced. The 15 body gives a 1/2in NPT connection on pressure, outlet and exhaust alike. Flow sits at the top of the 4V family: 48.0 mm2 effective area, Cv 2.82, with a response time of 0.05 s or less and a ceiling of 3 cycles per second. That class suits double-acting cylinders of roughly Dia80 to Dia125 mm. The coil draws 4.5 VA at AC220V, wiring lands in the terminal box for hard-wired panel connections, and the aluminum body weighs 590 g. A locking or non-locking manual override is fitted, and the air must be filtered by a 40 um element. Genuine AirTAC unit, backed by a quick RFQ response.
| Model | Airtac 4V Solenoid Valves 4V41015AT |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Single solenoid (spring return) |
| Port size | 41015AT |
| Exhaust port | 41015AT |
| Effective area (Cv) | 48.0 mm² (Cv 2.82) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Pilot type | Internal / external pilot |
| Operating pressure | 0.15 – 0.8 MPa |
| Proof pressure | 1.2 MPa |
| Max frequency | 3 cycle/sec |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | 590 g |
Specifications follow the official AirTAC 4V series datasheet. Lubrication not required. Confirm coil voltage and thread (PT / NPT / G) against the product label before wiring.
| Effective area | 48.0 mm² |
|---|---|
| Flow coefficient | Cv 2.82 |
| Response time | ≤ 0.05 s |
| Coil power | AC 4.5 VA · DC24V 3.0 W · DC12V 2.5 W |
| Protection / insulation | IP65 (DIN40050), B-class |
| Voltage options | DC24V, DC12V, AC110V, AC220V |
| Manual override | Yes (locking / non-locking) |
Size the valve so effective area / Cv is not the bottleneck for your cylinder bore and speed. Undersized valves slow the actuator. Note 5/3 (center) versions have a smaller effective area than the 5/2 of the same body size.
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 4 | Body size (4V400) — sets port & flow. |
| 1 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -41015AT | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V410 (single), 4V420 (double), 4V430C/E/P (5/3 center). Add the voltage suffix when ordering.
A Dia100 bore cylinder sweeping cartons onto a roller conveyor draws comfortably within the Cv 2.82 flow, and spring return guarantees a home position the moment the PLC signal drops.
Welding fixtures commonly run Dia80-125 clamp cylinders; one maintained AC220V signal holds the clamp shut, and the terminal box suits hard-wired control cabinets rather than plug-in coils.
Short, large-bore lines to a Dia125 gate cylinder stay well fed by the 1/2in NPT ports, keeping cycle rates near the 3 cycles per second limit even in dusty, high-duty sorting duty.
If your actuator is a Dia63 cylinder or smaller, the 4V300 body is the better match: it delivers Cv 1.65 at a friendlier price. The 4V400 is the largest 4V body, so anything needing more flow means moving to a larger valve series or grouping valves on a manifold base, which this body supports. Prefer a double-solenoid 4V420 when the cylinder must hold its last pulsed position through a power cut, or a 5/3 4V430 variant when the center condition (closed, exhaust or pressure) matters to the cycle. Ordering a replacement comes down to five points: body size 4V400, function digit 10 for the spring-return single solenoid, the 1/2in port with NPT thread, the AC220V coil code A, and the terminal-box entry (no I suffix).
Quick checklist
Flow capacity is 48.0 mm2 effective area (Cv 2.82) at up to 3 cycles per second. Response time is 0.05 s or below, operating pressure spans 0.15-0.8 MPa against a 1.2 MPa proof pressure, and the AC220V coil consumes 4.5 VA. Ambient and media range is -20 to +70 C, with air filtered by a 40 um element and IP65 protection on the electrical side.
T means the 1/2in ports are cut to NPT, the tapered thread standard on North-American machines. The same valve with no thread letter is PT (Rc) and with a G is BSPP parallel. Because NPT seals on the thread flanks, wrap the male thread with PTFE tape instead of relying on the bonded washer or O-ring you would use on a G port.
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