Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08A is a genuine 5/2-way solenoid valve solenoid valve with 230E08A 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 size230E08A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08A
The B03-4V230E08A is the explosion-proof build of AirTAC's 4V230E-08A, a 5/3-way double solenoid valve with an exhaust center. When both coils are de-energized, ports A and B vent to exhaust, allowing a connected double-acting cylinder to float freely - ideal for manual setup or emergency release. The B03- prefix marks this as the hazardous-atmosphere version of the standard valve, built to operate safely in flammable environments.
This unit carries a PT1/4 port and an AC220V coil drawing just 4.5 VA. With an effective area of 13.6 mm² (Cv 0.8) and a 3 cycle/sec max frequency, it suits double-acting cylinders in the O32-50 mm bore range. The spool responds in 0.05 s or less, and the IP65-rated aluminum body handles -20 to +70 C. At 360 g, it is a robust mid-size valve for demanding duty. Please confirm the exact protection rating and certification for your zone with us before ordering.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 230E08A |
| Exhaust port | 230E08A |
| 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 B03-4V230E08A
| 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. |
| -230E08A | 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 B03-4V230E08A Is Used
Hazardous-Area Actuation
Controls double-acting cylinders in paint booths or chemical processing lines where flammable vapors may be present. The explosion-proof B03- build reduces ignition risk while the exhaust center lets loads float safely when de-energized.
Manual Setup Stations
On assembly fixtures, the exhaust center function lets operators push a cylinder by hand when both solenoids are off. This simplifies part loading and alignment in explosive atmospheres where powered movement is restricted.
Emergency Release Systems
In automated packaging lines, this valve vents both cylinder ports on power loss, releasing clamped workpieces instantly. The 0.05 s response and IP65 protection suit washdown or dusty environments.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V230E08A the Right Valve?
Choose the B03-4V230E08A when you need a 5/3-way exhaust center valve with explosion-proof construction for a double-acting cylinder in a hazardous area. The exhaust center function lets the cylinder float when both solenoids are off - useful for manual alignment or safe emergency stops. The 13.6 mm² effective area (Cv 0.8) is a step down from the 5/2 4V200 models, so size it for moderate speed and flow. If you need more flow, step up to the 4V300 series (Cv 1.65); for a smaller bore, the 4V100 (Cv 0.6) will do.
For replacement, match this valve on five points: 4V200 body size, 5/3 exhaust center function, PT1/4 ports, AC220V coil, and terminal box electrical entry. The B03- prefix means you are getting the explosion-proof version - verify the specific Ex rating and certification with us for your zone before you install. If you need a grommet lead-out or a different thread, we can supply the matching variant.
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 B03-4V230E08A FAQ
B03- marks AirTAC's explosion-proof build of the base 4V230E-08A valve. It is designed for use in hazardous or flammable atmospheres where a standard valve could ignite gases or dust. The performance figures - 13.6 mm² effective area, Cv 0.8, AC220V 4.5 VA coil, 360 g weight - are identical to the standard model. For the exact protection level, Ex marking, and certification for your specific zone, please confirm with us before purchasing.
With both solenoids de-energized, the spool sits in the center position where ports A and B connect to the exhaust ports. This vents both sides of a double-acting cylinder, allowing the piston to move freely by external force. Energizing one solenoid shifts the spool to pressurize one port while exhausting the other, driving the cylinder in that direction. This is ideal for manual adjustment or emergency release, but it does not hold a load in position - for that, use a closed center valve or add a brake.
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Standard models usually ship in 3-4 days.
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Related AirTAC 4V Valves
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