Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V22008A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V22008A is a genuine 5/2-way solenoid valve solenoid valve with 22008A 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 size22008A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V22008A
The B03-4V22008A is AirTAC's explosion-proof build of the 4V220-08A, a 5/2-way double solenoid valve with memory function. It directs compressed air to double-acting cylinders and actuators, holding its last pulsed position when power is lost-no spring return, no holding current. This variant is engineered for hazardous or flammable atmospheres, making it a safer choice for volatile environments.
With a 17.0 mm² effective area (Cv 1.0) and a 320 g body, it suits ~O32-50 mm cylinders and cycles up to 5 times per second. The AC220V coil draws just 4.5 VA, and response time is 0.05 s or less. The B03- prefix signals the explosion-proof enclosure, but the exact protection rating and certification must be confirmed with us for your specific zone.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V22008A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V22008A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 22008A |
| Exhaust port | 22008A |
| 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 B03-4V22008A
| 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. |
| -22008A | 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 B03-4V22008A Is Used
Chemical Processing
Controls double-acting actuators in chemical plants where flammable vapors may be present. The explosion-proof build reduces ignition risk while the memory function holds valve position during brief power interruptions.
Paint Spray Booths
Operates pneumatic clamps and positioning devices in paint spray environments. The 1/4" port and Cv 1.0 deliver reliable actuation for O32-50 mm cylinders in volatile coating areas.
Fuel Handling Systems
Directs air in fuel transfer and storage equipment where explosive atmospheres are a concern. The double solenoid design ensures the spool stays put if power drops, maintaining process state until power returns.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V22008A the Right Valve?
Choose the B03-4V22008A when you need explosion-proof protection in a mid-flow 5/2 valve. The double solenoid memory design is ideal for applications where maintaining position during a brief power loss is critical-no spring to reset it, just reliable hold. For smaller cylinders below O32 mm, step down to the 4V100 series (Cv 0.6); for larger bores or faster cycles, step up to the 4V300 (Cv 1.65).
When replacing an existing valve, match five points: body size (4V200), function (5/2 double), port and thread (1/4" PT), coil voltage (AC220V), and electrical entry (terminal box). The B03- prefix adds the explosion-proof requirement-verify the protection level with us before ordering for your hazardous area.
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 B03-4V22008A FAQ
B03- marks AirTAC's explosion-proof version of the standard 4V220-08A. It's built for hazardous or flammable atmospheres, but we don't have the specific protection level or certification details in our data. You must confirm the exact rating and certification for your zone with us before purchase.
When you pulse one solenoid, the spool shifts and stays there even after power is removed-it's held by land friction and balanced pressure, not by a spring or magnet. Pulsing the other solenoid moves it back. This means no holding current is needed, but it also means the valve won't auto-reset on power loss.
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