
The AirTAC AirTAC 4V330C-10AI Solenoid Valve, 5/3-way, closed center, PT3/8, AC220V, grommet entry (4V330C10AI) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 330C10AI ports and an effective area of 21.3 mm² (Cv 1.25). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
The 4V330C-10AI is a 5/3-way double-solenoid pneumatic directional valve that controls double-acting cylinders with a closed center position. When both coils are de-energized, all ports are blocked, locking the cylinder in place to hold a load at mid-stroke. This AC220V model comes with a grommet-style electrical entry, providing a pre-wired 0.5 m flying lead for DIN-style connection.
Built on the 4V300 aluminum-alloy body with 3/8" PT ports, it delivers an effective area of 21.3 mm² (Cv 1.25) and suits cylinders in the ~Ø50–80 mm range. The sliding-spool design responds in 0.05 s or less, operates at 0.15–0.8 MPa, and carries IP65 protection. The AC220V coil draws 4.5 VA, and the valve weighs 450 g.
| Model | AirTAC 4V330C-10AI Solenoid Valve, 5/3-way, closed center, PT3/8, AC220V, grommet entry (4V330C10AI) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 330C10AI |
| Exhaust port | 330C10AI |
| Effective area (Cv) | 21.3 mm² (Cv 1.25) |
| 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 | 450 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 | 21.3 mm² |
|---|---|
| Flow coefficient | Cv 1.25 |
| 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. |
|---|---|
| 3 | Body size (4V300) — sets port & flow. |
| 3 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -330C10AI | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V310 (single), 4V320 (double), 4V330C/E/P (5/3 center). Add the voltage suffix when ordering.
The closed center blocks all ports at rest, holding a pneumatic clamp or press tool at a precise intermediate position without drifting.
Controls lift-and-carry actuators on conveyors where the load must pause mid-travel; the 5/3 center prevents unintended movement.
Directs double-acting cylinders on drilling or milling fixtures, stopping the spindle feed at a set depth for consistent cycle control.
Choose the 4V330C-10AI when your application requires a 5/3 closed-center function with AC220V power and a grommet lead-out. The closed center holds the actuator at mid-stroke by blocking all ports—ideal for pressing or clamping sequences where drift is unacceptable. If your cylinder is smaller (Ø32–40 mm), the 4V200 series (Cv 1.0) may be a better match; for larger bores above Ø80 mm, step up to the 4V400 (Cv 2.82).
For replacement, match five points: body size (4V300), function (30C closed center), port and thread (3/8" PT), coil voltage (AC220V), and electrical entry (grommet with flying lead). The valve can be mounted individually or on a manifold base for multi-station setups.
Quick checklist
With an effective area of 21.3 mm² (Cv 1.25), it suits double-acting cylinders roughly Ø50–80 mm. For smaller bores a 4V200 may be more responsive; for larger bores consider the 4V400.
When both solenoids are de-energized, the spool moves to the center position and blocks pressure, exhaust, and both cylinder ports. The cylinder holds its last position, but for suspended loads a pilot-operated check valve or mechanical brake is required for guaranteed load holding.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.