Airtac 4V400 Solenoid Valve 4V430C-15-B
The AirTAC Airtac 4V400 Solenoid Valve 4V430C-15-B is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with B 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 sizeB
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac 4V400 Solenoid Valve 4V430C-15-B
The AirTAC 4V430C-15B is a 5/3-way double-solenoid valve built on the large 4V400 body, directing compressed air to double-acting cylinders and actuators. When both solenoids are de-energised, the closed center spool blocks all ports, trapping air on both sides of the piston to hold the load in place—ideal for mid-stroke stops on presses or vertical clamps where drift is unacceptable.
This DC24V terminal-box model draws just 3.0 W and switches in 0.05 s or less, with an effective area of 40.0 mm² (Cv 2.35). It weighs 770 g and suits ~Ø80–125 mm cylinders. The aluminum-alloy body carries an IP65 protection rating, and the spool includes a manual override for setup without power.
Airtac 4V400 Solenoid Valve 4V430C-15-B Technical Specifications
| Model | Airtac 4V400 Solenoid Valve 4V430C-15-B |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | B |
| Exhaust port | B |
| 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-B
| 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. |
| -B | 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-B Is Used
Heavy Press Mid-Stroke Hold
Stops a large press platen mid-cycle and holds it under trapped air, preventing creep while a part is inspected or re-positioned.
Vertical Clamp & Lift Pause
Powers a Ø100 mm vertical clamp cylinder; the closed center locks the clamp in place during a dwell, keeping the workpiece secure without continuous power.
Palletiser Stop Station
Controls a heavy stop-gate cylinder on a pallet conveyor, holding the gate firmly shut at center to absorb impact without drifting open.
Is the Airtac 4V400 Solenoid Valve 4V430C-15-B the Right Valve?
Choose the 4V430C-15B when your application demands a mid-stroke stop with the cylinder held firmly under trapped pressure. The closed center is the go-to for vertical loads or clamping sequences where you cannot tolerate drift during a pause. If the cylinder can safely float at center—say, on a horizontal slide—the 4V430E exhaust-center variant is a better match.
This is the largest 4V body; step down to the 4V300 series (Cv 1.65) for ~Ø40–63 mm cylinders. For replacement, match all five points: 4V400 body, 5/3 closed-center function, 1/2 in PT port, DC24V coil, and terminal-box entry. Always add a pilot-operated check valve at the cylinder ports if the load is suspended and safety braking is required.
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-B FAQ
With a Cv of 2.35 and 40.0 mm² effective area, it suits double-acting cylinders roughly Ø80–125 mm. For smaller Ø40–63 mm cylinders, stepping down to the 4V300 series (Cv 1.65) often gives better speed control.
Both solenoids de-energise and the spool springs to the center position, blocking all ports. The cylinder stops and holds its last position under trapped air pressure. Note that this is not a safety-rated hold; for suspended loads, add a mechanical brake or pilot-operated check valve.
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