Explosion-proof Axial Flow Ventilator

In the general ventilation of chemical plant buildings, the daily exhaust of oil depot pump rooms, and the ventilation of coal conveying corridors, the air may contain low concentrations of flammable and explosive gases or dust, requiring continuous ventilation to keep concentrations below the explosive limit. In such scenarios, what is needed is not high-pressure process conveyance but high-airflow general ventilation with explosion-proof safety. Our factory's Explosion-proof axial flow ventilator adopts an axial structure with explosion-proof motor and anti-static impeller, capable of delivering large airflow at lower energy consumption while ensuring explosion-proof safety - the ideal equipment for general ventilation in low-to-medium concentration flammable and explosive environments.

The Explosion-proof axial flow ventilator adopts a cylindrical structure with built-in explosion-proof motor and anti-static impeller. The motor is a dedicated explosion-proof motor with Ex e (increased safety) or Ex d (flameproof) type, certified to national explosion-proof standards, with surface temperature controlled below the ignition temperature of the surrounding medium. The impeller is usually cast from aluminum alloy or stamped from stainless steel to avoid spark generation from collision with the casing; for higher requirements, the impeller surface can be treated with anti-static coating to prevent static electricity accumulation. The cylinder is manufactured from galvanized steel or stainless steel, with flanges at both ends for convenient duct connection; wall-mounted type is also available with mounting brackets and rain caps. All electrical components are explosion-proof type, with reliable grounding terminals. Every Explosion-proof axial flow ventilator from our factory undergoes explosion-proof performance inspection, dynamic balancing, and no-load running testing before shipping, ensuring safe and reliable operation in flammable and explosive environments. In the pump room of a large oil depot, air may contain low concentrations of gasoline vapor, classified as Zone 2 hazardous location. Multiple Explosion-proof axial flow ventilators with Ex e IIB T4 rating are installed on the pump room walls, continuously extracting air and introducing fresh air, keeping gasoline vapor concentration well below the explosive limit. Their explosion-proof motors ensure safe operation even in occasional high-concentration situations; their aluminum alloy impellers avoid friction sparks; their high-airflow axial structure efficiently dilutes and expels flammable gases - ensuring the safety of pump room operators and equipment 24/7 - this is the practical value of Explosion-proof axial flow ventilators in general ventilation of hazardous locations.

• General ventilation in chemical plant buildings and storage areas
• Daily ventilation in oil depot pump rooms, compressor rooms, and valve chambers
• Ventilation in coal conveying corridors and transfer stations of coal preparation plants
• General ventilation in pharmaceutical factories' solvent workshops
• Ventilation in printing plants' ink workshops and dry cleaning shops
• General ventilation in paint warehouses and chemical reagent warehouses

Explosion-proof axial flow ventilators can be customized based on customer hazardous location classification and application parameters. Explosion-proof rating selectable as Ex e IIB T4 or Ex d IIB T4 based on gas type and zone. Impeller diameters from 200mm to 1,200mm customizable as needed. Motor brand and explosion-proof grade can be specified. Impeller material selectable as aluminum alloy or stainless steel; anti-static coating available. Cylinder material selectable as galvanized steel or stainless steel. Installation types include ducted (flange connection), wall-mounted (with brackets and rain caps), and fixed (with mounting feet). Variable-frequency speed control with explosion-proof VFD available. MOQ is one unit; customization lead time is 10–15 working days.

Explosion-proof axial flow ventilators are safety products, with strict quality control. Explosion-proof motors are verified against explosion-proof certificates and nameplate parameters before warehousing. Impellers are inspected for material and anti-static treatment. Each impeller is dynamically balanced after assembly with accuracy no lower than Grade G6.3. Electrical connections are inspected for explosion-proof sealing and grounding reliability. After assembly, no-load running verifies current, vibration, noise, and motor surface temperature. Every product undergoes 100% inspection, accompanied by explosion-proof certificate copies and inspection records.

The company holds multiple national utility model patents. Explosion-proof motors carry national explosion-proof certificates (CNEx) and comply with GB 3836 standards; ATEX and IECEx certification available for export. Products are inspected to international standards; electrical components comply with IEC standards. Each unit undergoes performance and safety testing before shipping, accompanied by conformity certificate and user manual. We maintain industry-university-research collaborations with domestic universities and research institutes, continuously optimizing explosion-proof fan design and manufacturing technology.

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