Airtac 4V400 Solenoid Valve 4V430C-15-A
The AirTAC Airtac 4V400 Solenoid Valve 4V430C-15-A is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with A 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 sizeA
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the Airtac 4V400 Solenoid Valve 4V430C-15-A
The 4V430C-15A is a 5/3-way double-solenoid valve that directs compressed air to double-acting cylinders and actuators, with a closed center position that blocks all ports when the spool is centered. In this neutral state, air is trapped on both sides of the piston, holding the cylinder firmly in place—ideal for mid-stroke stops where drift cannot be tolerated. This AC220V terminal-box model delivers 4.5 VA coil power and suits bore sizes from approximately O80 to O125 mm.
Built on the largest 4V body, the 4V430C-15A provides a 40.0 mm² effective area (Cv 2.35) and a maximum cycling rate of 3 cycles per second. Its aluminum-alloy body weighs 770 g, responds in 0.05 seconds or less, and carries IP65 protection. The 1/2-inch PT (Rc) ports match common industrial piping, and the spool-sliding design operates reliably on filtered, non-lubricated air from 0.15 to 0.8 MPa.
Airtac 4V400 Solenoid Valve 4V430C-15-A Technical Specifications
| Model | Airtac 4V400 Solenoid Valve 4V430C-15-A |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | A |
| Exhaust port | A |
| 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 4V400 Solenoid Valve 4V430C-15-A
| 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. |
| -A | 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 4V400 Solenoid Valve 4V430C-15-A Is Used
Heavy Press & Clamp Control
Directs large-bore double-acting clamping cylinders on hydraulic-pneumatic intensifier presses. The closed center locks clamp pressure at mid-stroke, preventing part slip during multi-stage forming cycles.
Palletizer Lift & Hold
Operates the main lift cylinder on a palletizing station. The 5/3 closed center stops the heavy pallet stack precisely at intermediate tier heights without drifting, ensuring consistent layer placement.
Large Gate & Damper Actuation
Controls double-acting actuators on bulk-material diverter gates. The blocked-center spool holds the gate in a partially open position against material weight, maintaining a steady blend ratio.
Is the Airtac 4V400 Solenoid Valve 4V430C-15-A the Right Valve?
Choose the 4V430C-15A when your double-acting cylinder requires a controlled mid-position stop with the load held in place. The closed center blocks all flow, so the cylinder resists external forces at center—but for suspended or safety-critical loads, always add a pilot-operated check valve or mechanical brake. If your cylinder is smaller (O32–O63 mm), the 4V300 series with its Cv 1.65 may offer a better size-to-flow match and lower air consumption.
For a drop-in replacement, match five points: the 4V400 body size, the 5/3 closed-center function (30C), the 1/2-inch port and PT thread, the AC220V coil voltage, and the terminal-box electrical entry. The 4V400 is the highest-flow 4V series; if you need still greater capacity, consider moving to a larger valve family or ganging multiple 4V400 units on a manifold base.
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 4V400 Solenoid Valve 4V430C-15-A FAQ
With a 40.0 mm² effective area (Cv 2.35), it typically suits bore diameters from about O80 mm up to O125 mm. The exact speed depends on your supply pressure, tube length, and cylinder stroke, but this Cv class gives a good balance of flow and controllability for mid-to-large pneumatic actuators.
Both solenoids are off at center, and the spool blocks pressure, exhaust, and both cylinder ports. The air trapped on each side of the piston resists movement, so the cylinder holds its last commanded position. This is a spool-seal hold, not a mechanical lock—external forces can still cause creep, so use external checks for true load safety.
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