AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI)
The AirTAC AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 430C15AI ports and an effective area of 40.0 mm² (Cv 2.35). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
- Valve type5/3-way
- Function5/3 double solenoid — Closed center
- Port size430C15AI
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI)
The 4V430C-15AI is a 5/3-way double-solenoid valve that blocks all five ports when both coils are de-energized, holding a double-acting cylinder firmly at its mid-stroke position. This closed-center spool configuration prevents drift on vertical or clamped loads, making it a go-to choice for pressing, lifting, and precision stopping applications on bores roughly Ø80–125 mm.
Supplied with a 0.5 m flying-wire grommet entry and a 4.5 VA AC220V coil, this valve delivers a 40.0 mm² effective area (Cv 2.35) and cycles up to 3 times per second. The aluminum-alloy body weighs 770 g, responds in 0.05 s or less, and carries an IP65 protection rating for dusty or wet factory environments.
AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI) Technical Specifications
| Model | AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 430C15AI |
| Exhaust port | 430C15AI |
| Effective area (Cv) | 40.0 mm² (Cv 2.35) |
| 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 | 770 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.
Flow & Coil Options
| Effective area | 40.0 mm² |
|---|---|
| Flow coefficient | Cv 2.35 |
| 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.
Model Code: AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI)
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 4 | Body size (4V400) — sets port & flow. |
| 3 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -430C15AI | 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.
Where the AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI) Is Used
Mid-Stroke Holding for Presses
The closed center blocks all air paths, allowing a pneumatic press to pause and hold force at any point in the stroke without drifting, critical for delicate forming or bonding operations.
Vertical Lift Positioning
On a vertical gantry or lift-assist, the 5/3 closed center stops the load mid-air when both coils are off. Always pair with a pilot-operated check valve for suspended-load safety.
Large Pallet Stop Gates
Controls a heavy-duty stop gate on a conveyor line. The valve holds the gate in the raised or lowered position, and the AC220V grommet wiring simplifies connection to the main control panel.
Is the AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI) the Right Valve?
Choose this 4V430C-15AI when your circuit needs a cylinder to stop and lock position at center without drifting—closed center is the only 5/3 type that blocks all ports. If your cylinder is smaller (around Ø40–63 mm) and you don’t need the 40.0 mm² flow capacity, the lighter 4V300 series (Cv 1.65) is a better fit. For flow beyond the 4V400’s 1/2-inch ports, consider a larger valve family or a manifolded group.
When replacing an existing valve, match five points: 4V400 body size, 5/3 closed-center function, 1/2-inch PT-threaded ports, AC220V coil voltage, and the grommet (I) electrical entry. The pre-wired grommet lead speeds up DIN-rail installations and eliminates the need to open a terminal box in tight panels.
Quick checklist
- ✓ Required flow (Cv) for cylinder & speed
- ✓ Function: single / double / 5-3 center
- ✓ Coil voltage (DC24 / AC220 …)
- ✓ Port thread (M5 / 1/8 / 1/4 / 3/8 / 1/2)
- ✓ Single valve or manifold base?
Installation & Wiring Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.8 MPa operating pressure.
- check Match coil voltage to your controller output.
- check Use the manual override to test before powering.
- check Fit silencers or fittings to the exhaust ports.
- check Wiring by qualified personnel per AirTAC docs.
AirTAC 4V430C-15AI Solenoid Valve, 5/3-way, closed center, PT1/2, AC220V, grommet entry (4V430C15AI) FAQ
With a 40.0 mm² effective area (Cv 2.35), this 1/2-inch ported valve suits double-acting cylinders roughly Ø80–125 mm. It cycles at up to 3 c/s, providing crisp mid-stroke stops for medium-to-large bore actuators.
Both solenoids de-energize and the spool moves to the center position, blocking pressure, exhaust, and both cylinder ports. The cylinder is locked in place by trapped air. For true load-holding safety, especially on suspended weights, always add a mechanical brake or pilot-operated check valve at the cylinder ports.
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