Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B is a genuine 5/2-way solenoid valve solenoid valve with 31010B 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 size31010B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B
The B03-4V31010B is the explosion-proof variant of AirTAC's 4V310-10B, built for hazardous and flammable atmospheres where standard valves cannot operate safely. The "B03-" prefix marks this enhanced build, while the base 4V310-10B core delivers the same reliable 5/2-way, single-solenoid spring-return function that directs compressed air to double-acting cylinders and actuators.
This valve delivers a 28 mm² effective area with Cv 1.65, suiting cylinders in the 50-80 mm range. The DC24V coil draws just 3.0W, and the valve responds in 0.05 seconds or less. At 310 g, it is a compact yet powerful solution for automated machinery. For specific protection ratings and certifications for your zone, please confirm with us before ordering.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 31010B |
| Exhaust port | 31010B |
| 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 B03-4V31010B
| 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. |
| -31010B | 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 B03-4V31010B Is Used
Hazardous Material Handling
Controls double-acting cylinders in chemical plants and refineries where flammable vapors may be present. The explosion-proof build allows safe operation in these demanding environments.
Automated Machine Tools
Drives clamping and positioning cylinders on CNC machines and machining centers operating in areas with cutting fluid mist and potential combustible particulates.
Fuel Transfer Systems
Operates actuated valves in fuel loading and unloading systems where explosive atmospheres are a constant concern. The spring return ensures fail-safe positioning on power loss.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B the Right Valve?
Choose the B03-4V31010B when you need explosion-proof protection in a 5/2 single-solenoid configuration with 3/8" PT ports. The Cv 1.65 flow handles medium-bore cylinders effectively. If your cylinder is smaller than 50 mm, the 4V200 series with Cv 1.0 offers a more economical match; for bores above 80 mm, step up to the 4V400 series with Cv 2.82.
This single-solenoid valve requires a constant electrical signal to stay energized; removing power springs it back to the home position. For applications needing position memory during power loss, consider the double-solenoid 4V320 series instead. Verify your replacement matches: body size 4V300, function 5/2 single, 3/8" PT ports, DC24V coil, and terminal box entry.
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 B03-4V31010B FAQ
The B03- prefix marks this as AirTAC's explosion-proof version of the standard 4V310-10B. It is designed for hazardous and flammable atmospheres. Please confirm the exact protection rating and certification for your specific zone with us before purchasing.
This 5/2 valve has an effective area of 28 mm² with a Cv of 1.65. It is suitable for double-acting cylinders in the 50-80 mm range and responds in 0.05 seconds or less.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC 4V Valves
Request a Quote for Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010B
Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.