Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330P08B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330P08B is a genuine 5/2-way solenoid valve solenoid valve with 330P08B 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 size330P08B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330P08B
The B03-4V330P08B is AirTAC's explosion-proof build of the 4V330P-08B, a 5/3-way double solenoid valve with a pressure center. In its center position, both cylinder ports (A and B) are simultaneously pressurized, which can be useful for clamping applications where a controlled force must be maintained. The leading "B03-" prefix identifies this as the explosion-proof version, intended for use in hazardous or flammable atmospheres where standard valves could pose an ignition risk. Please confirm the exact protection rating and certification for your specific zone with us before ordering, as these details are application-critical.
This valve directs compressed air to double-acting cylinders or actuators within the O50-80 mm bore range. It delivers an effective area of 21.3 mm² (Cv 1.25) and a maximum frequency of 3 cycles per second. The DC24V coil draws just 3.0W, and the valve body weighs 450 g. With a response time of 0.05 seconds or less and IP65 protection, it is built for demanding industrial environments where both performance and safety are paramount.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330P08B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330P08B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 330P08B |
| Exhaust port | 330P08B |
| 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 B03-4V330P08B
| 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. |
| -330P08B | 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 B03-4V330P08B Is Used
Clamping Fixtures
Use the pressure center function to apply a controlled, balanced force on both sides of a double-acting cylinder in clamping fixtures, holding workpieces securely during machining operations without sudden releases.
Hazardous Process Lines
Deploy in chemical or pharmaceutical process lines where flammable vapors may be present. The explosion-proof B03- build is designed for such environments, but always verify the specific zone certification with us.
Press Control Systems
Incorporate into pneumatic press control systems where the pressure center position allows for a gentle, controlled approach or a cushioned stop, reducing shock to tooling and workpieces.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V330P08B the Right Valve?
When selecting a 5/3 pressure center valve, consider that this configuration applies pressure to both sides of a double-acting cylinder at center, which can generate heat and stress on the system. It is best suited for applications where a specific holding force is required rather than a rigid stop or a free-floating state. If your cylinder bore is smaller than O50 mm, the 4V200 series (Cv 1.0) would be a more economical choice; for bores larger than O80 mm, step up to the 4V400 series (Cv 2.82) for adequate flow.
For replacement or retrofit, verify five points: the body size (4V300), the function (5/3 pressure center), the port size and thread (1/4" PT), the coil voltage (DC24V), and the electrical entry (terminal box). This B03- prefix version is specifically engineered for explosive atmospheres, so ensure your facility's hazard classification is compatible with the valve's actual certification, which you should confirm with us.
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 B03-4V330P08B FAQ
The 'B03-' prefix indicates this is AirTAC's explosion-proof version of the standard 4V330P-08B valve. It is designed for use in hazardous or flammable atmospheres. The performance specifications (Cv 1.25, 21.3 mm² effective area, 450 g weight, DC24V 3.0W coil) are identical to the standard model. However, the exact protection level, certification body, and zone rating are not included in our data. You must confirm these critical safety details with us before installation.
In the pressure center (30P) position, both output ports A and B are simultaneously connected to the pressure supply. This means both sides of a double-acting cylinder are pressurized at center, creating a balanced force. This is beneficial for applications requiring a controlled holding force, such as clamping, rather than a rigid mechanical stop (closed center) or free movement (exhaust center). Note that this function has a smaller effective area (21.3 mm², Cv 1.25) than a 5/2 valve, so cycle speeds will be slightly lower.
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