Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A is a genuine 5/2-way solenoid valve solenoid valve with 430C15A 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 size430C15A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A
The B03-4V430C15A is AirTAC's explosion-proof build of the 4V430C-15A, engineered for hazardous and flammable atmospheres where standard valves cannot be used. As a 5/3-way double-solenoid valve with a closed center, it blocks all ports at the center position, which locks a double-acting cylinder in place when both coils are de-energized. The 40.0 mm² effective area (Cv 2.35) delivers substantial flow for large-bore actuators, and the AC220V coil draws just 4.5 VA.
This explosion-proof version carries the B03- prefix, indicating a reinforced enclosure designed to contain any internal ignition. The valve suits double-acting cylinders in the 80-125 mm range and responds in 0.05 s or less. Weighing 770 g with an aluminum-alloy body and IP65 protection, it is built for demanding industrial environments. Please confirm the exact protection rating and certification for your specific zone with us before ordering.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 430C15A |
| Exhaust port | 430C15A |
| 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 B03-4V430C15A
| 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. |
| -430C15A | 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 B03-4V430C15A Is Used
Chemical Processing Lines
Controls double-acting cylinders that actuate valves or dampers in chemical plants where flammable vapors may be present. The explosion-proof enclosure contains any internal spark, while the closed center holds the actuator position during power loss.
Heavy Clamping Fixtures
Operates large clamping cylinders on machining centers that must hold workpieces securely. The 5/3 closed-center function maintains clamping force when the valve is centered, and the 80-125 mm cylinder capacity handles substantial workpieces.
Petroleum Transfer Systems
Powers double-acting cylinders in fuel loading arms or tank farm operations where explosive atmospheres are a concern. The B03- build provides the necessary protection for these volatile environments, and the 40 mm² effective area ensures rapid actuation.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A the Right Valve?
Choose the B03-4V430C15A when you need explosion-proof construction in a 5/3 closed-center valve for large-bore double-acting cylinders. The closed-center function holds the cylinder position when both solenoids are off, which is ideal for intermediate stopping in automated processes. With a Cv of 2.35, this valve provides strong flow capacity-step down to the 4V300 series (Cv 1.65) only if your cylinder is smaller than 80 mm.
When replacing an existing valve, match five points exactly: body size (4V400), function (5/3 closed center), port and thread (1/2" PT), coil voltage (AC220V), and electrical entry (terminal box). The B03- prefix specifically denotes the explosion-proof build, so verify that your application's hazard classification is compatible with this valve's rating-confirm the protection level with us for your zone.
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 B03-4V430C15A FAQ
The B03- prefix indicates this is AirTAC's explosion-proof version of the standard 4V430C-15A. It is built with a reinforced enclosure to contain any internal ignition, making it suitable for hazardous or flammable atmospheres. The performance figures-40 mm² effective area, Cv 2.35, 770 g weight, AC220V 4.5VA coil-are identical to the standard model. For the exact protection level, Ex marking, and certification for your specific zone, please confirm with us.
In the center position, all ports (P, A, B, and exhausts) are blocked, which traps air in both cylinder ports and holds the double-acting cylinder firmly in place. This is useful for stopping a load at an intermediate position or maintaining a clamped state. When one solenoid is energized, the spool shifts to route air to one cylinder port while exhausting the other, moving the cylinder. Note that this valve alone should not be relied upon as a safety brake for suspended loads-use a mechanical brake or pilot-operated check valve for guaranteed holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC 4V Valves
Request a Quote for Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430C15A
Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.