We've been supplying the BDW series for years now, and the Ex db IIC T4 Gb rating is what most buyers in hazardous zones focus on — it covers both gas and dust environments for Zone 1 and Zone 2 areas, basically the toughest conditions you'll run into.
What that means in practice is you can install this on a roof in a chemical plant or oil refinery and it'll keep moving air reliably, with airflow form 618 up to 54,300 m³/h depending on the impeller size you pick, and the aluminun alloy construction keeps corrosion in check for most.

So for US and EU customers, the ATEX and IECEx certifications are already in place, which simplifies import documentation a lot — we usually provide the COA and SDS along with the shiping paperwork, though customs requirment can vary by country so it's worth checking your local regs.
Ordering is pretty straightforward: our company offer OEM and OEM customization, and the MOQ is typically 10 units or so for standard models, but for larger runs our company can negotiate — just specify whether you need 220V or 380V, and whether you want G3/4 inlet or a pressrue plate connection.

One thing that catches some buyers off guard is the cable diameter range is φ10-φ14mm, so make sure your conduit matches up before ordering, and the direct motor connection means less maintenance but you'll want to confirm the shaft alignment every 20 days or so.
Anyway, the 5L drum is easier to handle for smaller installations, but for high-volume application the 200mm impeller option is better suited — it's not great for areas with heavy particulate buildup though, that's just the nature of axial flow designs.
Typical lead time for a standard unit is 15-20 working days after deposit. For custom OEM/ODM orders, add about 10-15 days depending on the complexity—things like special paint or non-standard voltage. Best to confirm with us for your specific batch size.
We don't have a strict MOQ for this model—single units are fine for testing or small projects. For bulk orders, we can negotiate pricing and lead time. Just let us know your quantity.
Yes, absolutely. Every BDW fan comes with a certificate of conformity for ATEX and IECEx, plus a detailed test report. We include them with the packing list unless you request separate shipping.
It means the fan is safe for Zone 1 (and Zone 2) gas groups IIC, with a max surface temperature of 135°C for T4. So it's fine for most industrial explosive gases like hydrogen or acetylene. Just make sure the cable diameter fits the φ10-14mm gland.
It's IP54 rated and has WF1 corrosion protection, so short-term outdoor storage under cover is okay. But for longer than a month, keep it in a dry, sheltered area—especially the motor and cable entry—to avoid moisture buildup inside the junction box.