Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010A is a genuine 5/2-way solenoid valve solenoid valve with 31010A 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 size31010A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010A
The B03-4V31010A is the explosion-proof build of AirTAC's 4V310-10A, engineered for hazardous or flammable atmospheres where standard valves would be unsafe. This 5/2-way single solenoid valve directs compressed air to double-acting cylinders and actuators, with spring return ensuring the spool resets when the AC220V signal is removed. The 28 mm² effective area (Cv 1.65) delivers strong flow for cylinders in the 50-80 mm range, making it a workhorse for industrial automation in demanding environments.
The B03- prefix specifically marks this as AirTAC's explosion-proof version, built with enhanced enclosure protection for use in potentially explosive settings. With a response time of 0.05 s or less and a 4.5 VA coil at AC220V, it offers reliable, rapid actuation. The aluminum-alloy body and IP65 protection rating ensure durability in harsh conditions. For specific protection levels, certification details, or gas/dust group classifications, please confirm with us-our data does not include these specifics.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 31010A |
| Exhaust port | 31010A |
| 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 B03-4V31010A
| 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. |
| -31010A | 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 B03-4V31010A Is Used
Hazardous-Area Automation
Controls double-acting cylinders in chemical plants, paint booths, or fuel handling systems where flammable vapors may be present. The explosion-proof build allows safe operation in these demanding environments.
Machine Tool Actuation
Drives clamping fixtures and work-holding devices on CNC machines and presses. The 28 mm² effective area ensures rapid, firm clamping action for precision machining operations.
Material Handling Systems
Powers pneumatic conveyors and sorting equipment in processing facilities. The spring-return function provides automatic reset, ideal for cyclic operations in dusty or potentially explosive environments.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V31010A the Right Valve?
Choose the B03-4V31010A when your application demands explosion-proof construction in a 5/2 spring-return valve with 3/8" PT ports. This model suits double-acting cylinders in the 50-80 mm bore range, offering a Cv of 1.65 for efficient air flow. If your cylinder is smaller (40 mm or less), the 4V200 series with Cv 1.0 may be more economical; for larger bores above 80 mm, step up to the 4V400 series with Cv 2.82.
For replacement or new installations, verify these five points: body size (4V300), function (10 = single solenoid, spring return), port and thread (3/8" PT tapered), coil voltage (AC220V), and electrical entry (terminal box). The spring-return design means it requires a constant signal to stay actuated-de-energizing returns the spool to its home position. This is ideal for fail-safe applications where the valve must default to a known state on power loss.
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 B03-4V31010A FAQ
The B03- prefix marks this as AirTAC's explosion-proof version of the standard 4V310-10A. It is specifically built for hazardous or flammable atmospheres where standard valves would pose a safety risk. For exact protection ratings, certification details, or zone suitability, please confirm with us-our data does not include these specifics.
The B03-4V31010A suits double-acting cylinders in the 50-80 mm bore range, thanks to its 28 mm² effective area (Cv 1.65). It operates within 0.15-0.8 MPa pressure and responds in 0.05 s or less. For smaller bores, consider the 4V200 series; for larger, the 4V400.
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