Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15B is a genuine 5/2-way solenoid valve solenoid valve with 430C15B 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 size430C15B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15B
The B03-4V430C15B is AirTAC's explosion-proof build of the 4V430C-15B, engineered for environments where flammable gases or dusts may be present. This 5/3-way, closed-center valve directs compressed air to double-acting cylinders, locking them in place when both solenoids are de-energized - all ports blocked at center. It delivers a 40.0 mm² effective area (Cv 2.35), making it a strong match for large-bore cylinders in the 80-125 mm range.
Powered by a DC24V coil drawing just 3.0 W, this valve offers a rapid response time of ≤0.05 s and weighs 770 g. The B03- prefix signifies the explosion-proof enclosure, but the exact protection level and certification must be confirmed with us for your specific zone. With a PT1/2" port and terminal box entry, it's built for rugged industrial service in demanding locations.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 430C15B |
| Exhaust port | 430C15B |
| 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 B03-4V430C15B
| 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. |
| -430C15B | 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 B03-4V430C15B Is Used
Hazardous-Area Press Control
Controls double-acting cylinders on presses in chemical plants or paint shops where explosive vapors may be present, with closed-center holding for safe operation.
Explosive-Dust Material Handling
Positions large diverters or gates in grain handling or powder processing lines, holding the actuator firmly when power is interrupted.
Offshore & Marine Actuation
Operates valve actuators or positioning cylinders in offshore platforms where flammable atmospheres are a concern, providing reliable 5/3 closed-center control.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15B the Right Valve?
Choose the B03-4V430C15B when you need explosion-proof construction combined with the 4V400's large flow capacity. The closed-center function is ideal for applications requiring the cylinder to hold its position precisely when power is removed - but for suspended loads, always add a mechanical brake or pilot-operated check valve at the cylinder ports, as the valve alone isn't a safety device. If your cylinder is smaller than 80 mm, the 4V300 series (Cv 1.65) may be more economical.
When replacing an existing valve, verify the five critical matches: body size (4V400), function (5/3 closed center), port and thread (PT1/2"), coil voltage (DC24V), and electrical entry (terminal box). The B03- prefix means you're getting the explosion-proof variant - confirm the specific protection rating and certification with us before installation in a classified area.
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 B03-4V430C15B FAQ
The B03- prefix designates AirTAC's explosion-proof version of the standard 4V430C-15B. It's built with a reinforced enclosure to contain any internal ignition, making it suitable for hazardous/flammable atmospheres. However, the exact protection level and certification for your specific zone must be confirmed with us - we don't have those details in our data.
In the closed-center configuration, when both solenoids are de-energized, all ports (P, A, B, and exhausts) are blocked. This traps air in both sides of a double-acting cylinder, holding its position rigidly. With a 40.0 mm² effective area (Cv 2.35), it's sized for 80-125 mm cylinders. Note: for suspended loads, pair it with a mechanical brake or pilot-operated check valve for safety.
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