AirTAC 4V430C-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI)
The AirTAC AirTAC 4V430C-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 430C15BI 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 size430C15BI
- Effective area40.0 mm²
- Flow (Cv)2.35
- Series4V400
About the AirTAC 4V430C-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI)
The 4V430C-15BI is a 5/3-way double-solenoid valve that blocks all ports in its center position, holding a double-acting cylinder firmly in place when neither coil is energized. With a 40.0 mm² effective area (Cv 2.35) on the 4V400 body, it suits mid-to-large bore cylinders roughly in the O80–125 mm range.
This model ships with a DC24V coil drawing just 3.0 W and a pre-wired 0.5 m grommet lead-out, so you can wire it directly into a DIN-rail terminal strip without opening a junction box. The sliding-column spool responds in 0.05 s or less, and the IP65-rated enclosure keeps dust and low-pressure jets out.
AirTAC 4V430C-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI) Technical Specifications
| Model | AirTAC 4V430C-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 430C15BI |
| Exhaust port | 430C15BI |
| 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-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI)
| 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. |
| -430C15BI | 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-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI) Is Used
Heavy Clamp & Hold Fixtures
The closed center blocks both cylinder ports at mid-stroke, so a clamping jaw stays put when the valve de-energizes—ideal for machining fixtures that must not drift during a tool change.
Vertical Press Safety Circuits
In a press with a vertical ram, the 4V430C-15BI halts the cylinder if power is interrupted, preventing unintended downward creep while the operator clears the work zone.
Palletizer Stop Gates
Use the closed-center position to freeze a large stop-gate cylinder partway through its stroke, holding a pallet in queue until the downstream conveyor is clear.
Is the AirTAC 4V430C-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI) the Right Valve?
Choose the 4V430C-15BI when you need a 1/2-inch 5/3 closed-center valve with DC24V coils and a flying-lead electrical entry. The closed center blocks cylinder ports at mid-stroke, which helps hold a vertical load steady during an emergency stop—though a pilot-operated check valve is still recommended for true load-holding safety. If your cylinder is smaller (O32–63 mm), the 4V300 series with its Cv 1.65 will give crisper response and save panel space.
For a drop-in replacement, match five points: 4V400 body size, 5/3 closed-center function, 1/2-inch PT port, DC24V coil voltage, and grommet-style electrical entry. The 4V400 is the largest 4V body; if you need still higher flow, consider stepping up to a larger valve series or building a manifold bank.
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-15BI Solenoid Valve, 5/3-way, closed center, PT1/2, DC24V, grommet entry (4V430C15BI) FAQ
With an effective area of 40.0 mm² (Cv 2.35) and a 3 cycles/sec max frequency, it pairs well with double-acting cylinders roughly in the O80–125 mm range. For smaller O32–63 mm cylinders, the 4V300 series (Cv 1.65) is usually a better match.
In the center position, the spool seals the pressure port and both cylinder ports (A and B). The cylinder is trapped and resists movement from external forces. For suspended loads, always add a pilot-operated check valve or mechanical brake—the valve's spool seal alone is not a safety holding device.
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