AirTAC 4V430C-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E)
The AirTAC AirTAC 4V430C-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 430C15E 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 size430C15E
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the AirTAC 4V430C-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E)
The 4V430C-15E is a 5/3-way double-solenoid pneumatic directional valve that controls double-acting cylinders and actuators with a closed-center spool arrangement. When both solenoids are de-energised, the valve spool moves to its center position where all cylinder ports (A and B) are blocked, effectively holding the actuator in place at mid-stroke. This makes it a go-to choice for applications that need a controlled pause or an intermediate stop without drifting, such as vertical press stations or positioning jigs.
Built on the largest 4V body size, the 4V400 series delivers an effective area of 40.0 mm2 (Cv 2.35) for 5/3 functions, comfortably suiting double-acting cylinders in the ~O80-125 mm bore range. This AC24V variant draws 5.0 VA from the coil, operates with a response time of 0.05 s or less, and weighs 770 g. The aluminium-alloy body carries an IP65 protection rating and requires no lubrication, running on standard 40 µm filtered compressed air at 0.15-0.8 MPa.
AirTAC 4V430C-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E) Technical Specifications
| Model | AirTAC 4V430C-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 430C15E |
| Exhaust port | 430C15E |
| 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-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E)
| 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. |
| -430C15E | 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-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E) Is Used
Vertical Press Mid-Stroke Hold
In a pneumatic press, the closed center holds the ram at a precise intermediate position for part inspection or tool change, preventing drift while the operator works safely downstream.
Large Part Transfer with Pause
On a conveyor lift-and-transfer unit, the 4V430C-15E stops a heavy O100 mm cylinder-driven carriage mid-travel, allowing a secondary operation like labelling to complete before the stroke finishes.
Test Rig Actuator Positioning
A durability test stand uses this valve to cycle a double-acting cylinder to a defined center position repeatedly, holding force against a spring-loaded test sample while measurements are taken.
Is the AirTAC 4V430C-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E) the Right Valve?
Choose the 4V430C-15E when your circuit needs a 5/3 closed-center function on a 1/2-inch ported valve and you are powering the solenoids with a 24 V AC supply. The closed center is ideal for holding a vertical load at an intermediate position during a cycle, but remember that spool valves alone are not safety-rated holding devices—if the load must never drift, pair this valve with a pilot-operated check valve at the cylinder ports.
For smaller cylinders around O50-63 mm, stepping down to the 4V300 body (Cv 1.65) often gives a better speed match and a more compact manifold footprint. When replacing an existing 4V400-series valve, match five points: the 4V400 body size, the 5/3 closed-center function (30C), the 1/2-inch port and thread standard (this model uses PT/Rc tapered threads), the AC24V coil voltage, and the terminal-box electrical entry. For flows beyond what a single 4V400 can deliver, consider ganging multiple valves on a common manifold or moving to a larger valve series.
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-15E Solenoid Valve, 5/3-way, closed center, PT1/2, AC24V, terminal entry (4V430C15E) FAQ
With an effective area of 40.0 mm2 (Cv 2.35) on the 5/3 function, this 1/2-inch ported valve suits double-acting cylinders roughly in the O80 to O125 mm bore range. The exact speed depends on your supply pressure, tubing diameter, and the cylinder stroke, but this Cv class provides ample flow for responsive cycling of mid-to-large bore actuators.
The 4V430C-15E is a double-solenoid valve: the spool stays in whichever of the three positions it was last pulsed to, including the closed center. If both solenoids are de-energised while the spool is at center, all cylinder ports remain blocked, so the actuator will tend to hold its position. However, because no spool valve seals perfectly, some creep is possible over time. For true load holding, especially with suspended weights, add a pilot-operated check valve at the cylinder ports.
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