Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430P15A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430P15A is a genuine 5/2-way solenoid valve solenoid valve with 430P15A 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 size430P15A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430P15A
The B03-4V430P15A is AirTAC's explosion-proof build of the 4V430P-15A, a 5/3-way pressure-center solenoid valve with a PT1/2 port. The leading 'B03-' prefix marks this as the hazardous-atmosphere version of the base valve, engineered for flammable environments where standard coils could be a risk. It directs compressed air to double-acting cylinders and actuators, and at its center position both cylinder ports are simultaneously pressurized, which can be useful for balancing or holding a load in a mid-stroke position.
This valve carries the 4V400 body's 5/3 performance class: a 40.0 mm² effective area (Cv 2.35) and a 3 cycle/sec maximum frequency. The AC220V coil draws just 4.5 VA, and the complete unit weighs 770 g. With a response time of 0.05 s or less and IP65 protection, it suits large-bore cylinders in the 80-125 mm range. For the exact explosion-proof protection rating and certification for your zone, please confirm with us - our data does not include the specific Ex marking or certificate number.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430P15A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430P15A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 430P15A |
| Exhaust port | 430P15A |
| 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 B03-4V430P15A
| 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. |
| -430P15A | 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 B03-4V430P15A Is Used
Hazardous-Area Cylinder Control
Operate double-acting cylinders in petrochemical or solvent-handling lines where flammable vapors may be present, using the explosion-proof B03 build to reduce ignition risk.
Pressurized Balancing
Use the pressure-center function to pressurize both sides of a large-bore cylinder, holding a heavy tool or platen in position during setup or dwell phases.
Large-Bore Material Handling
Drive 80-125 mm cylinders in bulk handling equipment where the 40 mm² effective area delivers the force needed for lifting or shifting heavy loads.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V430P15A the Right Valve?
Choose the B03-4V430P15A when you need a 5/3 pressure-center function on a 1/2-inch port in a potentially explosive atmosphere. The pressure-center behavior is ideal for applications where you want to pressurize both sides of a double-acting cylinder at rest, such as keeping a load balanced or preventing drift in a specific position. The 40.0 mm² effective area (Cv 2.35) is the 5/3 rating for the 4V400 body - if you need more flow, you'd step up to a larger valve series, and for smaller cylinders the 4V300 (Cv 1.65) is the lighter-duty option.
When replacing an existing valve, match these five points exactly: body size (4V400), function (5/3 pressure center), port and thread (PT1/2), coil voltage (AC220V), and electrical entry (terminal box). The B03- prefix is the explosion-proof variant, so confirm the protection level 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 B03-4V430P15A FAQ
B03- is AirTAC's explosion-proof build of the base 4V430P-15A valve. It is intended for hazardous or flammable atmospheres. Our data does not include the specific protection rating, Ex marking, or certificate number - please confirm those details with us for your particular zone.
At the center position, both cylinder ports (A and B) are simultaneously pressurized. This can help balance a load or hold a double-acting cylinder in position. Note that for guaranteed load holding in a suspended-load scenario, you should add a dedicated mechanical brake or pilot-operated check valve at the cylinder ports.
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