Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V32010B
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V32010B is a genuine 5/2-way solenoid valve solenoid valve with 32010B 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 size32010B
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V32010B
The B03-4V32010B is AirTAC's explosion-proof build of the 4V320-10B, designed for environments where flammable gases or vapors may be present. This 5/2-way double solenoid valve directs compressed air to double-acting cylinders and actuators, holding its last pulsed position when power is removed-no spring return, no holding current required. With a 28.0 mm² effective area (Cv 1.65), it delivers strong flow for O50-80 mm bore cylinders, and its DC24V coil draws just 3.0 W.
This version carries the B03- prefix, marking it as the explosion-proof variant of the standard 4V320-10B. The spool-and-sliding-column design, aluminum-alloy body, and IP65 protection (DIN40050) make it a robust choice for demanding industrial settings. Response time is 0.05 s or less, and the manual override allows convenient setup and testing. For specific protection ratings and certifications for your zone, please confirm with us before ordering.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V32010B Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V32010B |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 32010B |
| Exhaust port | 32010B |
| 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 B03-4V32010B
| 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. |
| -32010B | 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 B03-4V32010B Is Used
Chemical Processing Lines
Controls double-acting actuating cylinders on chemical dosing or mixing equipment where flammable vapors may be present. The explosion-proof B03 build reduces ignition risk while the 3/8" port delivers ample flow for O50-80 mm actuators.
Paint Spray Booths
Operates pneumatic clamps and positioning cylinders in paint finishing areas with solvent-laden atmospheres. Memory function holds the last position during brief power dips, maintaining workpiece orientation without re-cycling.
Fuel Handling Systems
Directs air to double-acting cylinders that operate valves or diverters in fuel transfer skids. The 28.0 mm² effective area ensures responsive movement, while the explosion-proof housing suits the hazardous classification of the area.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V32010B the Right Valve?
Choose the B03-4V32010B when your application demands explosion-proof construction in a 5/2 double solenoid valve with 3/8" PT ports. The double solenoid memory function is ideal for processes where the valve must retain its last position during a power interruption-no spring to fight, no holding power consumed. If your cylinder bore is smaller than O50 mm, the 4V200 series (Cv 1.0) may be more economical; for bores above O80 mm, step up to the 4V400 series (Cv 2.82) for higher flow.
When replacing an existing valve, match five points exactly: body size (4V300), function (5/2 double), port and thread (3/8" PT), coil voltage (DC24V), and electrical entry (terminal box). The B03- prefix indicates the explosion-proof enclosure-verify the specific protection level and certification for your hazardous area with us, as these details are not included in our standard datasheet.
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 B03-4V32010B FAQ
B03- marks this as AirTAC's explosion-proof build of the standard 4V320-10B. It shares the same 5/2 double solenoid function, 3/8" PT ports, DC24V coil, 28.0 mm² effective area (Cv 1.65), and 400 g weight. The B03- housing is designed for hazardous/flammable atmospheres, but you must confirm the exact protection rating and certification for your specific zone with us before installation.
The spool stays in the position it was last pulsed to, held by land friction and balanced pressure-there is no spring and no holding current. When you energize one solenoid, the spool shifts and remains there even after power is removed. Energizing the opposite solenoid shifts it back. This is not magnetic latching; it is purely mechanical position retention.
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