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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
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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