Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15A is a genuine 5/2-way solenoid valve solenoid valve with 430E15A 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 size430E15A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15A
The B03-4V430E15A is AirTAC's explosion-proof build of the 4V430E-15A, designed for environments where flammable gases or vapors may be present. This 5/3-way, double solenoid valve uses an exhaust center configuration: when de-energized, both cylinder ports connect to exhaust, allowing the actuator to float freely. It directs compressed air to double-acting cylinders and actuators, making it a versatile control element in automated systems.
With an effective area of 40 mm² (Cv 2.35), this valve delivers substantial flow for large-bore cylinders in the 80-125 mm range. The AC220V coil draws just 4.5 VA, and the valve responds in 0.05 seconds or less. Weighing 770 g, it's built on an aluminum-alloy body with IP65 protection. The B03- prefix indicates the explosion-proof variant-please confirm the exact protection rating and certification for your specific zone with us before ordering.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 430E15A |
| Exhaust port | 430E15A |
| 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 B03-4V430E15A
| 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. |
| -430E15A | 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 B03-4V430E15A Is Used
Chemical Processing
Controls double-acting actuators in chemical plants where flammable vapors may be present. The explosion-proof B03- build addresses ignition risk while the exhaust center function allows safe manual override of cylinders during maintenance or emergency stops.
Fuel Handling Systems
Directs air to cylinders in fuel transfer and storage operations. The 5/3 exhaust center lets suspended loads settle naturally when power is lost, preventing pressure buildup in lines. Confirm the protection rating matches your zone classification.
Hazardous Material Transfer
Operates double-acting cylinders moving volatile materials in refineries or paint shops. The 40 mm² effective area delivers the flow needed for 80-125 mm cylinders while the explosion-proof housing contains any internal spark. Verify certification with us.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430E15A the Right Valve?
Choose the B03-4V430E15A when you need explosion-proof construction with 5/3 exhaust center functionality. The exhaust center is ideal for applications where the load must be manually movable or where the cylinder should not hold position when the valve is centered. If you need the cylinder to hold its position at center, consider the closed center (30C) version instead. For smaller cylinders, the 4V300 series with Cv 1.65 offers a more economical match.
When replacing an existing valve, verify these five points: body size (4V400), function (5/3 exhaust center), port and thread (PT 1/2"), coil voltage (AC220V), and electrical entry (terminal box). The B03- prefix adds the explosion-proof requirement-confirm the protection level matches your hazardous area classification with our team before purchase.
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 B03-4V430E15A FAQ
B03- is AirTAC's designation for the explosion-proof version of the base model 4V430E-15A. It's built for hazardous or flammable atmospheres where a standard valve could ignite gases or dust. The performance specs-40 mm² effective area, Cv 2.35, AC220V 4.5VA coil, 770 g weight-are identical to the standard version. You must confirm the exact protection rating and certification for your specific zone with us, as we don't publish those details in this listing.
In the exhaust center (30E) configuration, when both solenoids are de-energized, both cylinder ports (A and B) are connected to the exhaust port. This means the cylinder is not pressurized on either side and the piston can move freely-the load 'floats.' This is different from a closed center (30C) which locks the cylinder in place, or a pressure center (30P) which pressurizes both sides. The exhaust center is useful when you need to manually position a load or when the cylinder should not resist external forces at rest.
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