Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330C10B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330C10B is a genuine 5/2-way solenoid valve solenoid valve with 330C10B 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 size330C10B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330C10B
The B03-4V330C10B is AirTAC's explosion-proof build of the 4V330C-10B, a 5/3-way double solenoid valve with a closed center. In its center position, all ports are blocked, which locks a double-acting cylinder in place - ideal for stopping a load mid-stroke without drift. The B03- prefix identifies this as the hazardous-atmosphere version, so it is suited to flammable environments where a standard valve would be unsafe.
With an effective area of 21.3 mm² (Cv 1.25), this valve suits double-acting cylinders in the 50-80 mm range. Its DC24V coil draws just 3.0 W, and the valve responds in ≤0.05 s. The aluminum-alloy body weighs 450 g, and the unit is rated IP65. The exact protection level and certification for your zone must be confirmed with us before installation.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330C10B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330C10B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 330C10B |
| Exhaust port | 330C10B |
| 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 B03-4V330C10B
| 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. |
| -330C10B | 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 B03-4V330C10B Is Used
Hazardous-Area Presses
Use in hydraulic or pneumatic press circuits located in flammable atmospheres, where the closed center holds the ram in position when the valve is de-energized.
Machining Fixtures
Lock a double-acting clamping cylinder in place during a machining cycle in a solvent-rich workshop, preventing workpiece movement without holding power.
Chemical Plant Actuators
Control double-acting valve actuators in chemical processing areas where explosive vapors may be present, with the B03- build providing the necessary protection.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330C10B the Right Valve?
Choose this B03-4V330C10B when you need a 5/3 closed-center valve for a double-acting cylinder that must hold its position at center, and when the installation is in a potentially explosive atmosphere. The 3/8" PT ports deliver the 4V300 body's 21.3 mm² effective area, which is a step up from the 4V200's Cv 1.0 for larger bores. If you need more flow, move to the 4V400 body (Cv 2.82); for smaller cylinders, the 4V200 is lighter and cheaper.
For replacement, match this unit's 5/3 closed-center function, 3/8" PT ports, DC24V coil, and terminal-box electrical entry. The B03- prefix is the explosion-proof variant, so confirm the exact protection rating and certification with us for your specific zone before ordering.
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 B03-4V330C10B FAQ
B03- marks AirTAC's explosion-proof version of the standard 4V330C-10B. It is built for use in hazardous or flammable atmospheres. The performance figures (Cv 1.25, 21.3 mm², 450 g, 3.0 W) are identical to the standard valve. You must confirm the exact protection rating and certification with us for your specific zone, as we do not list those details here.
In the center position, all three ports (P, A, B) are blocked. This means a double-acting cylinder connected to A and B will hold its current position firmly, with no drift. It is not a safety brake - for suspended loads, add a pilot-operated check valve or mechanical brake at the cylinder.
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