Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B is a genuine 5/2-way solenoid valve solenoid valve with 430E15B ports and an effective area of See datasheet (Cv —). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
- Valve type5/2-way
- FunctionSolenoid valve
- Port size430E15B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B
The B03-4V430E15B is AirTAC's explosion-proof build of the 4V430E-15B, a 5/3-way double solenoid valve with an exhaust center. This means at the center position, both cylinder ports A and B are open to exhaust, allowing a double-acting cylinder to float freely without pressure. It's designed for hazardous or flammable atmospheres where standard valves could pose an ignition risk, though you should confirm the exact protection rating and certification for your specific zone with us.
This large 4V400-body valve offers a 40.0 mm² effective area (Cv 2.35) and suits cylinders in the 80-125 mm range. The DC24V coil draws just 3.0 W, and the valve responds in 0.05 s or less. Weighing 770 g with a PT 1/2" port, it handles substantial flow while the exhaust-center function provides a safe, pressure-free state for maintenance or emergency stops.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 430E15B |
| Exhaust port | 430E15B |
| Effective area (Cv) | See datasheet (Cv —) |
| 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 | See datasheet |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | See datasheet |
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 | See datasheet |
|---|---|
| Flow coefficient | Cv — |
| Response time | ≤ 0.05 s |
| Coil power | AC 3.5–4.5 VA · DC 2.5–3.0 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 B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| B | Body size (4V) — sets port & flow. |
| 0 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -430E15B | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4VB10 (single), 4VB20 (double), 4VB30C/E/P (5/3 center). Add the voltage suffix when ordering.
Where the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B Is Used
Hazardous Process Lines
Controls double-acting cylinders in chemical or pharmaceutical process lines where flammable vapors may be present. The explosion-proof build reduces ignition risk, and the exhaust center safely vents both cylinder ports when de-energized.
Emergency Release Systems
Ideal for emergency stop or release mechanisms on large presses or clamping fixtures. When power is cut, the exhaust center immediately relieves pressure on both sides of the cylinder, allowing the load to drop or release without resistance.
Float Positioning Tables
Powers double-acting cylinders on large positioning tables or transfer systems. The exhaust center function lets operators manually float or adjust the table position when the valve is centered, simplifying setup and alignment tasks.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B the Right Valve?
Choose the B03-4V430E15B when you need explosion-proof protection in a 5/3-way exhaust center configuration. The exhaust center function is ideal for applications where a cylinder must be able to move freely when the valve is de-energized, such as for manual adjustment or to release tension. The 40.0 mm² effective area (Cv 2.35) is suited for 80-125 mm cylinders; for smaller bores, step down to the 4V300 series with its Cv 1.65.
When replacing an existing valve, verify the 5-point match: body size (4V400), function (5/3 exhaust center), port and thread (1/2" PT), coil voltage (DC24V), and electrical entry (terminal box). The B03- prefix specifically indicates the explosion-proof version, so confirm the hazardous-area classification and certification requirements with us before ordering.
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 B03-4V Explosion-Proof Solenoid Valve B03-4V430E15B FAQ
B03- indicates this is AirTAC's explosion-proof version of the standard 4V430E-15B. It's built for use in hazardous or flammable atmospheres. However, the specific protection level, certification body, and gas/dust group ratings are not included in our listing data-you must confirm the exact rating and certification for your zone with us before installation.
In the center position, both cylinder ports A and B are connected to exhaust. This means a double-acting cylinder connected to the valve will have no pressure on either side, allowing it to float or move freely. This is useful for maintenance, manual adjustment, or emergency release scenarios. The valve has a 40.0 mm² effective area (Cv 2.35) and suits 80-125 mm cylinders.
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