
The AirTAC AirTAC 4V430E-15EI Solenoid Valve, 5/3-way, exhaust center, PT1/2, AC24V, grommet entry (4V430E15EI) is a genuine 5/3-way 5/3 double solenoid — exhaust center solenoid valve with 430E15EI 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.
The 4V430E-15EI is a 5/3-way double-solenoid directional control valve built on the largest 4V body size, directing compressed air to double-acting cylinders and rotary actuators. Its exhaust-center spool design connects both cylinder ports A and B to exhaust when the valve returns to center, allowing the actuator to float freely—ideal for applications where the load must be manually repositioned or where holding pressure at mid-stroke is undesirable.
This specific configuration ships with an AC24V coil drawing 5.0 VA and a grommet-style electrical entry that provides a 0.5 m pre-wired flying lead, simplifying DIN-rail wiring without a terminal box. The 4V400 body delivers a 40.0 mm2 effective area (Cv 2.35) and a response time of 0.05 seconds or less, suiting double-acting cylinders roughly in the O80 to 125 mm bore range. The aluminum-alloy body weighs 770 g, operates on filtered air from 0.15-0.8 MPa, and carries an IP65 protection rating.
| Model | AirTAC 4V430E-15EI Solenoid Valve, 5/3-way, exhaust center, PT1/2, AC24V, grommet entry (4V430E15EI) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Exhaust center |
| Port size | 430E15EI |
| Exhaust port | 430E15EI |
| 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.
| 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.
| 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. |
| -430E15EI | 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.
An exhaust-center 5/3 valve lets a heavy welding fixture float at center so the operator can slide the clamped assembly out by hand after the cycle, without fighting trapped air pressure.
On a pallet-transfer lift using an O100 mm cylinder, the 4V430E-15EI exhausts both sides at mid-stroke, allowing the lift table to be lowered gently by gravity or an external guide while the valve is de-energized.
In a large pneumatic press, shifting to exhaust center immediately dumps pressure from both sides of the main ram, enabling a quick, safe release of stored energy before the operator opens the guard door.
Choose the 4V430E-15EI when your circuit requires a 5/3 exhaust-center function on a 1/2-inch ported valve. The exhaust center is the right pick for clamping heads that need to retract freely or for manual-load stations where the operator pushes the tooling into position by hand. If your cylinder is smaller—say O50 to O63 mm—the 4V300 series with its Cv of 1.65 may give you finer speed control and a lighter manifold footprint.
For a drop-in replacement, match five points: the 4V400 body size, the 5/3 exhaust-center function, the 1/2-inch PT-threaded ports, an AC24V coil, and the grommet (flying-lead) electrical entry. The 4V400 is the largest 4V body; if you need still greater flow capacity, consider stepping up to a larger valve series or grouping multiple 4V400 valves on a common manifold.
Quick checklist
With a 40.0 mm2 effective area (Cv 2.35) and a 3 cycles-per-second maximum frequency, this valve is well matched to double-acting cylinders roughly in the O80 to O125 mm bore range. It provides sufficient flow for rapid cycling of mid-to-large pneumatic actuators without excessive pressure drop.
In the center position both cylinder ports are connected to exhaust while the pressure port is blocked. The cylinder piston is not held—it can be moved freely by an external force. This is useful for manual load positioning, applications where the actuator must 'float' at rest, or safety circuits where stored energy must be vented immediately when the valve de-energizes.
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