AirTAC 4V430C-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI)
The AirTAC AirTAC 4V430C-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 430C15FI 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 size430C15FI
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the AirTAC 4V430C-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI)
The 4V430C-15FI 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, all ports are blocked, locking the cylinder in position to hold a load steady mid-stroke. This specific model is configured with a DC12V coil drawing just 2.5 W and a grommet-style electrical entry that provides a 0.5 m pre-wired flying lead, simplifying low-voltage DC wiring on mobile or battery-powered equipment.
Built on the largest 4V body size, this 4V400-series valve delivers an effective area of 40.0 mm² (Cv 2.35) and cycles at up to 3 times per second. It suits double-acting cylinders in the ~Ø80–125 mm range. The aluminum-alloy body weighs 770 g, operates from 0.15–0.8 MPa, and achieves a response time of 0.05 s or less, with IP65 protection sealing the grommet entry against dust and water jets.
AirTAC 4V430C-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI) Technical Specifications
| Model | AirTAC 4V430C-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 430C15FI |
| Exhaust port | 430C15FI |
| 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-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI)
| 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. |
| -430C15FI | 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-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI) Is Used
Heavy-Duty Clamping Fixtures
A closed-center 5/3 valve holds clamp pressure on large workpieces during machining. If power is interrupted, the blocked ports keep the cylinder from retracting, preventing the part from shifting until the system is safely reset.
Material Lifts & Hoists
Controls a Ø100 mm lift cylinder with mid-stroke stopping capability. The closed center halts the platform at any height without drifting, though a pilot-operated check valve should be added for suspended-load safety in overhead lifting.
Large-Bore Sorting Gates
Directs packages on a high-speed conveyor using a Ø125 mm double-acting actuator. The 4V430C-15FI shifts the gate with a 0.05 s response, and the grommet wiring keeps the DC12V connection tidy inside a guarded control panel.
Is the AirTAC 4V430C-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI) the Right Valve?
Choose the 4V430C-15FI when your application needs a large-bore cylinder to stop and hold position on loss of signal—the closed center blocks all air paths so the piston resists drift. For smaller cylinders around Ø40–63 mm, stepping down to a 4V300 body (Cv 1.65) often provides a better size-to-flow match and reduces manifold footprint. As the largest 4V valve, the 4V400 is the endpoint of this series; if you need still higher flow, consider moving to a larger valve family or ganging multiple 4V400 units on a manifold.
When replacing an existing valve, match five points: body size (4V400), function (5/3 closed center), port and thread (1/2 in, PT), coil voltage (DC12V), and electrical entry (grommet with flying lead). The 5/3 center type must match exactly—a closed center cannot substitute for an exhaust or pressure center without changing the actuator's fail-safe behaviour.
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-15FI Solenoid Valve, 5/3-way, closed center, PT1/2, DC12V, grommet entry (4V430C15FI) FAQ
With an effective area of 40.0 mm² (Cv 2.35), this 4V400 valve is typically matched to double-acting cylinders in the ~Ø80–125 mm range. It cycles at up to 3 times per second. For smaller cylinders around Ø50–63 mm, a 4V300-series valve (Cv 1.65) is often a more proportional choice.
When neither solenoid is energised, the spool returns to the center position where pressure, exhaust, and cylinder ports are all blocked. This traps air on both sides of the piston, holding the cylinder in its last position. It resists movement from external forces but is not a safety brake—for suspended loads, add a mechanical lock or pilot-operated check valve at the cylinder ports.
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