Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08B is a genuine 5/2-way solenoid valve solenoid valve with 230E08B 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 size230E08B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08B
The B03-4V230E08B is AirTAC's explosion-proof version of the 4V230E-08B, engineered for environments where flammable gases or dust may be present. As a 5/3-way double solenoid valve with an exhaust center, it directs compressed air to double-acting cylinders and actuators, and when both coils are de-energized, it vents both cylinder ports to atmosphere, allowing the load to float freely. This configuration is ideal for applications requiring manual adjustment or emergency release.
Built on the 4V200 body, this valve delivers an effective area of 13.6 mm² (Cv 0.8) and suits cylinders in the 32-50 mm range. The DC24V coil consumes just 3.0 W, and the valve responds in 0.05 s or less. Weighing 360 g, it features an IP65-rated enclosure and a terminal box for secure wiring. The "B03-" prefix marks the explosion-proof build, but please confirm the specific protection rating and certification for your zone with us before ordering.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 230E08B |
| Exhaust port | 230E08B |
| 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 B03-4V230E08B
| 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. |
| -230E08B | 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 B03-4V230E08B Is Used
Hazardous-Area Actuation
Controls double-acting cylinders in paint booths, chemical processing lines, or solvent-handling stations where flammable vapors may be present, with the explosion-proof build providing an extra layer of safety.
Manual Setup Stations
The exhaust center function allows operators to manually position a cylinder or actuator during machine setup or calibration, as both ports are vented when the valve is centered.
Emergency Release Systems
In automated assembly or packaging lines, this valve can quickly vent cylinder pressure in an emergency, allowing the load to drop or move freely without resistance.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08B the Right Valve?
Choose the B03-4V230E08B when you need a 5/3-way exhaust center valve for double-acting cylinders in hazardous areas. The exhaust center function is perfect for applications where the cylinder must be able to move freely when the valve is in its neutral state, such as during setup or emergency stops. With a Cv of 0.8, it is well-suited for cylinder bores from 32 mm to 50 mm. For smaller cylinders, the 4V100 series (Cv 0.6) may be more economical, while larger bores or faster cycles would benefit from the 4V300 series (Cv 1.65).
When replacing an existing valve, verify the body size (4V200), function (5/3 exhaust center), port size and thread (PT 1/4"), coil voltage (DC24V), and electrical entry (terminal box). The B03- prefix indicates the explosion-proof enclosure, so also confirm the protection level required for your specific hazardous area classification with our team.
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 B03-4V230E08B FAQ
The B03- prefix marks this as AirTAC's explosion-proof build of the base 4V230E-08B model. It is designed for use in potentially hazardous or flammable atmospheres. Please contact us to confirm the exact protection rating and certification for your specific zone, as this information is not included in our standard data.
With both coils de-energized, the exhaust center function vents both cylinder ports to atmosphere. This allows the connected double-acting cylinder to move freely, which is useful for manual positioning, emergency releases, or when you need to isolate a section of the machine without holding pressure.
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