The Wolf Safety VF-UB20xx 20cm Hazardous Area Fan/Ventilator (engineered in partnership with Ramfan™) is a world-leading portable ventilation solution designed specifically for safe air supply, fume extraction, and continuous air circulation in hazardous environments with potential explosion risks. This robust unit fully complies with the most stringent global safety standards, including ATEX and IECEx certifications for Zone 1 and Zone 2 hazardous areas (Gas Groups IIA, IIB, Temperature Class T6).

Powered by a totally enclosed 0.33 HP (0.25 kW) motor, the VF-UB20xx is available in two voltage configurations: 115V 50/60Hz and 230V 50/60Hz. The electrical starter is safely housed inside a flameproof motor enclosure ('db'), completely eliminating ignition risks when powering the unit on. Its rugged casing is built from high-strength anti-static Polycarbonate/ABS alloy, offering superior resistance against mechanical impacts, harsh weather, aggressive industrial chemicals, and meeting V0 flame-retardant standards.

Featuring an aerodynamically optimized impeller, the Wolf Safety VF-UB20xx delivers class-leading performance with a maximum free airflow of up to 980 cfm (1,666 m³/h)—the highest in its 20cm portable fan category. Even when connected to long anti-static ducting up to 7.6 meters with dual 90-degree bends, it maintains exceptional airflow efficiency. Despite its high performance, the unit operates at an ultra-quiet noise level of just 74dB at a 1-meter distance, ensuring worker comfort and clear communication during operations.

Weighing only 12kg with compact dimensions (35 x 35 x 39 cm), an IP55 rain-tested switch enclosure, and a heavy-duty 7.6-meter power cable, the Wolf Safety VF-UB20xx is the top choice for confined space entry, storage tank maintenance, offshore oil & gas rigs, marine shipbuilding, underground utility works, and emergency hazmat response teams.

• Manufacturer: Wolf Safety Lamp Company Ltd (In partnership with Ramfan™)
• Product Line: Portable Hazardous Area Fan / Ventilator
• Model Reference: VF-UB20xx (115V Version) / VF-UB20xx (230V Version)
• Explosion-Proof Certifications: ATEX & IECEx (DEMKO 09 ATEX 0926969X / IECEx UL 13.0062X)
• ATEX Code: II 2 G Ex db eb IIB T6 Gb / II 2 G Ex h IIB T6 Gb
• Classification: Zone 1 & Zone 2 (Gas Groups IIA, IIB, Temperature Class T6)
• Protection Types: 'db' flameproof enclosure, 'eb' increased safety, 'h' non-electrical equipment
• Ambient Operating Temperature: -20°C to +40°C
• Operating Voltage & Amperage:
  - 115V Version: 115V AC, 50/60Hz (Start 7A / Running 2.3A)
  - 230V Version: 230V AC, 50/60Hz (Start 7A / Running 1.2A)
• Motor Rating: 0.33 HP (0.25 kW)
• Free Airflow Performance:
  - 115V Model: 980 cfm (1,666 m³/h)
  - 230V Model: 816 cfm (1,386 m³/h)
• Airflow Through Duct (25' / 7.6m with two 90° turns): 614 cfm (1,044 m³/h) for 115V / 510 cfm (867 m³/h) for 230V
• Fan Diameter: 20 cm (8 inches) - Includes 2 integrated duct adapters
• Enclosure Material: Anti-static Polycarbonate/ABS Alloy (weatherproof, dent resistant, V0 flame retardant, chemical resistant)
• Ingress Protection Rating: IP55 (Rain and dust tight)
• Noise Level: 74 dB @ 1 meter
• Power Cable Length: 7.6 meters (Heavy duty)
• Fan Dimensions (H x W x D): 35 x 35 x 39 cm
• Unit Weight: 12 kg