Airtac 4V400 Solenoid Valve 4V430E-15-A
The AirTAC Airtac 4V400 Solenoid Valve 4V430E-15-A is a genuine 5/3-way 5/3 double solenoid — exhaust 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 — Exhaust center
- Port sizeA
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the Airtac 4V400 Solenoid Valve 4V430E-15-A
The 4V430E-15A is a 5/3-way double-solenoid pneumatic directional valve that directs compressed air to double-acting cylinders and actuators, with an exhaust center position that vents both cylinder ports to atmosphere when the valve is at rest. This allows the actuator rod to float freely, which is ideal for applications where the load must be moved manually or where pressure must be completely released during an emergency stop.
Belonging to the largest 4V body size, the 4V400 series, this valve delivers an effective area of 40.0 mm² (Cv 2.35) and suits cylinders in the ~Ø80-125 mm range. The AC220V coil draws 4.5 VA and the aluminum-alloy body weighs 770 g. With a response time of 0.05 s or less and IP65 protection, it provides fast, reliable control for heavy-duty pneumatic systems.
Airtac 4V400 Solenoid Valve 4V430E-15-A Technical Specifications
| Model | Airtac 4V400 Solenoid Valve 4V430E-15-A |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Exhaust 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 4V430E-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 4V430E-15-A Is Used
Large Material Handling
Controls pneumatic gates and diverters on wide conveyor lines. The exhaust center allows the gate to be pushed back manually for clearing jams without fighting trapped air pressure.
Heavy-Duty Clamping
Operates large-bore clamps on assembly fixtures. The float position ensures the clamp releases fully, letting the operator freely reposition the workpiece before the next cycle.
Press and Forming Safety
Directs air to the main cylinder on a forming press. In an E-stop, the exhaust center instantly dumps pressure from both sides of the cylinder, allowing the tool to retract or be manually lifted.
Is the Airtac 4V400 Solenoid Valve 4V430E-15-A the Right Valve?
Select the 4V430E-15A when your double-acting cylinder needs to be completely depressurized at mid-stroke, allowing the rod to be moved without resistance. This 5/3 exhaust-center configuration is distinct from the closed-center (30C) which locks the cylinder, and the pressure-center (30P) which applies force to both sides. For smaller bore cylinders below Ø63 mm, stepping down to a 4V300 series valve with a Cv of 1.65 often provides a more economical and responsive match.
As the largest 4V body, the 4V400 is the go-to for high-flow 1/2-inch applications. If your system demands even greater flow capacity, consider a larger valve series or a manifold assembly. When replacing an existing valve, verify all five points: 4V400 body size, 5/3 exhaust-center function, 1/2-inch PT port, AC220V coil voltage, and terminal-style electrical entry.
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 4V430E-15-A FAQ
When both solenoids are de-energized, the valve spool moves to the center position where the pressure port is blocked, and both cylinder ports (A and B) are connected to the exhaust ports. This vents all air from the cylinder, allowing the piston rod to 'float' and be moved freely by an external force.
With an effective area of 40.0 mm² (Cv 2.35), the 4V430E-15A is well-suited for controlling double-acting cylinders in the ~Ø80 to 125 mm bore range. It provides sufficient flow for rapid cycling of these larger actuators on a 1/2-inch pneumatic line.
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