Airtac 4V400 Solenoid Valve 4V430P-15-A
The AirTAC Airtac 4V400 Solenoid Valve 4V430P-15-A is a genuine 5/3-way 5/3 double solenoid — pressure 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 — Pressure center
- Port sizeA
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the Airtac 4V400 Solenoid Valve 4V430P-15-A
The AirTAC 4V430P-15A is a 5/3-way double-solenoid valve built on the largest 4V body, directing compressed air to double-acting cylinders and actuators with a 1/2-inch port. Its pressure-center spool applies supply pressure to both cylinder ports when the valve returns to mid-position, which counterbalances the piston and resists external forces—useful when you need to hold a load against a consistent push without drifting.
This AC220V model uses a terminal-box electrical entry and draws 4.5 VA inrush, making it straightforward to wire into standard machine panels. With an effective area of 40.0 mm² (Cv 2.35), a 3 cycles/sec maximum frequency, and a response time of 0.05 s or below, the 4V430P-15A suits ~Ø80–125 mm cylinders in circuits where a centered, pressured state is the safest default.
Airtac 4V400 Solenoid Valve 4V430P-15-A Technical Specifications
| Model | Airtac 4V400 Solenoid Valve 4V430P-15-A |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Pressure 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 4V430P-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 4V430P-15-A Is Used
Counter-Balanced Press Tools
In a pneumatic press where the tooling must hold position against a constant spring-return force, the 4V430P-15A's pressure center applies equal pressure to both sides of the cylinder at mid-stroke, preventing creep and keeping the tool precisely where it was stopped.
Large-Bore Gate Stops
For a material-handling gate on a conveyor that must resist product weight pushing back when paused, this valve's centered pressure state locks the double-acting cylinder in place with balanced force, so the gate doesn't drift open under load.
Heavy Clamping with Anti-Backdrive
When a clamp on an Ø100 mm cylinder must hold a workpiece against a steady machining force, the pressure-center spool keeps both A and B ports pressurized at rest. This counter-pressure stops the clamp from backing off, even if air supply fluctuates slightly.
Is the Airtac 4V400 Solenoid Valve 4V430P-15-A the Right Valve?
Choose the 4V430P-15A when your double-acting cylinder needs to stop at mid-stroke under balanced pressure—this prevents the rod from being back-driven by a steady opposing force. If your cylinder is smaller (~Ø40–63 mm) and you don't need the pressure-center feature, stepping down to the 4V300 series (Cv 1.65) often saves space and cost. For flow beyond the 4V400's 40.0 mm² effective area, consider a larger valve series or a manifolded group.
When replacing an existing 5/3 pressure-center valve, match five points: body size (4V400), function (30P), port and thread (1/2-inch PT), coil voltage (AC220V), and electrical entry (terminal box). A mismatch on any of these—especially the center condition—will change the actuator's fail-safe behavior, so verify the original part number carefully.
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 4V430P-15-A FAQ
In the center (de-energised) position, both cylinder ports A and B receive supply pressure simultaneously. This creates a balanced force across the piston, which resists external loads trying to push or pull the rod. It's not a safety lock—if you need guaranteed load holding, add a pilot-operated check valve at the cylinder ports—but it prevents free drifting under a steady opposing force.
With an effective area of 40.0 mm² (Cv 2.35) and a 1/2-inch port, this valve is typically paired with double-acting cylinders in the ~Ø80–125 mm range. The 5/3 body has a slightly smaller flow path than the 5/2 version (48.0 mm²), so factor that in if speed is critical. For smaller cylinders around Ø50–63 mm, a 4V300-series valve is usually a better match.
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