Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V42015A
The AirTAC Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V42015A is a genuine 5/2-way solenoid valve solenoid valve with 42015A 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 size42015A
- Effective areaSee datasheet
- Flow (Cv)—
- Series4V
About the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V42015A
The B03-4V42015A is AirTAC's explosion-proof build of the 4V420-15A, a 5/2-way double solenoid valve that directs compressed air to double-acting cylinders and actuators. The B03- prefix marks this as the hazardous-atmosphere version of the base valve, so you get the same 4V400 performance with the added intent for flammable environments. As a memory valve, it holds its last pulsed position without any holding current when power is lost - the spool simply stays put, balanced by pressure and land friction.
This unit carries the full 4V400 flow class: an effective area of 48 mm² and Cv of 2.82, with a maximum frequency of 3 cycles per second. The AC220V coil draws just 4.5 VA, and the valve responds in 0.05 s or less. At 720 g, it suits large-bore double-acting cylinders in the O80-125 mm range. The terminal-box electrical entry keeps wiring neat, and the PT1/2 threaded ports match standard tapered pipe fittings. Because this is the explosion-proof variant, please confirm the exact protection level and certification for your specific zone with us before installation.
Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V42015A Technical Specifications
| Model | Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V42015A |
|---|---|
| Series | 4V solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Solenoid valve |
| Port size | 42015A |
| Exhaust port | 42015A |
| 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 B03-4V42015A
| 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. |
| -42015A | 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 B03-4V42015A Is Used
Hazardous-Area Automation
Controls double-acting cylinders in paint shops, chemical processing lines, or solvent-handling areas where flammable vapors may be present, thanks to the explosion-proof B03- build.
Large-Bore Clamping
Drives heavy-duty clamps on machining fixtures or assembly stations where the 48 mm² effective area delivers the force needed for secure part holding.
Material Handling Lifts
Operates double-acting lift cylinders on conveyors or palletizers, with the memory function holding the last position if power drops mid-cycle.
Is the Airtac B03-4V Explosion-Proof Solenoid Valve B03-4V42015A the Right Valve?
Choose the B03-4V42015A when you need a double solenoid 5/2 valve with memory behavior in a potentially hazardous area, and when your double-acting cylinder falls in the O80-125 mm bore range. The 4V400 is the largest 4V body, so this valve delivers the highest flow in the family - if you need even more capacity, you would step up to a larger valve series or use a manifold arrangement. For smaller cylinders, the 4V300 with its Cv of 1.65 would be a more economical match.
When replacing an existing valve, verify the five-point match: body size (4V400), function (5/2 double solenoid), port and thread (1/2" PT), coil voltage (AC220V), and electrical entry (terminal box). The B03- prefix indicates the explosion-proof build, so confirm that the protection rating suits your installation. If you are unsure about the zone classification or certification requirements, contact us with your application details and we will help you confirm the correct specification.
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 B03-4V42015A FAQ
B03- is AirTAC's designation for the explosion-proof build of the base 4V420-15A valve. It is intended for use in hazardous or flammable atmospheres where a standard valve could pose an ignition risk. The performance figures - 48 mm² effective area, Cv 2.82, AC220V 4.5VA coil - are identical to the standard version. However, the exact protection rating, certification, and zone suitability are not included in our data, so you must confirm these details with us for your specific installation.
The B03-4V42015A is a 5/2 double solenoid valve with memory. When you pulse one solenoid, the spool shifts and mechanically stays in that position even after the electrical signal is removed - there is no spring to return it and no holding current required. The spool is held by land friction and balanced air pressure. If you then pulse the opposite solenoid, the spool shifts the other way. This is not magnetic latching; it is purely a mechanical stay-put design.
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