Low-pressure Anti-corrosion Centrifugal Fan

In locations such as chemical plants, electroplating workshops, and laboratories, many ventilation scenarios have low system resistance - only requiring air containing relatively low concentrations of corrosive components such as acids, alkalis, or solvent vapors to be conveyed through short ducts or directly discharged outside, with low system back pressure. In such cases, selecting a high-pressure corrosion-resistant centrifugal fan is not only overkill but also increases operating costs due to the high-pressure fan's high speed, noise, and energy consumption. Our factory's Low-pressure anti-corrosion centrifugal fan is a dedicated device designed for exactly such low-resistance, high-airflow corrosion-resistant ventilation scenarios, conveying large volumes of corrosive air at lower energy consumption - the ideal choice for users who value operating costs and initial investment.

The hallmark feature of the Low-pressure anti-corrosion centrifugal fan is its forward-curved multi-blade impeller. This impeller has numerous short blades capable of generating required airflow at lower rotational speeds, thus featuring compact structure and relatively low noise - very suitable for chemical workshops and laboratory environments with certain noise requirements. Impellers are usually integrally cast from aluminum alloy or riveted from thin stainless steel plate, ensuring good light weight and dynamic balance performance while possessing corrosion resistance. The fan casing design is simple, mostly adopting rectangular or spiral housings, convenient for direct installation in air handling units, equipment cabinets, or light duct systems, and can also be ducted or wall-mounted. Its drive method is mainly direct drive, with extremely compact structure saving installation space. All components contacting corrosive media undergo targeted anti-corrosion treatment: impellers and casings can be all-plastic (such as PP or FRP), stainless steel (304/316), or heavy anti-corrosion coating (such as epoxy resin, polyurethane) on carbon steel substrates. For direct-drive fans, motors must be corrosion-resistant or totally enclosed type with special coating treatment. Sealing details are critical - fluororubber seals are often used at shaft seals, and all fasteners are stainless steel, thoroughly eliminating electrochemical corrosion starting points. Every Low-pressure anti-corrosion centrifugal fan from our factory undergoes dynamic balancing and performance testing before shipping, ensuring efficient and stable operation in the low-pressure range. In the local exhaust system of a pickling line in an electronic component workshop, a PP low-pressure anti-corrosion centrifugal fan connects to a fume hood above the pickling tank, providing over 3,000 m³/h airflow at lower energy consumption, ensuring acid mist is effectively captured and discharged to outdoor treatment equipment. Its all-plastic structure provides perfect resistance to mixed acid mist, with low operating noise fully meeting workshop environment requirements - an economical and efficient solution for targeted corrosion-resistant ventilation.

• General ventilation of low-concentration corrosive air in chemical plant buildings
• Local and general exhaust in electroplating plants and pickling workshops
• Fume hood exhaust and room ventilation in laboratories and testing rooms
• Local exhaust in pickling lines and cleaning processes of electronics factories
• Corrosive gas extraction in battery production workshops
• Ventilation in warehouses and basements with mildly corrosive gases

Our factory has 25 years focused on industrial fan manufacturing, with low-pressure anti-corrosion centrifugal fans as an economical and practical product line. The factory covers over 10,000 square meters with over 100 employees, possessing multiple corrosion-resistant manufacturing capabilities including plastic welding, FRP molding, stainless steel welding, and anti-corrosion coating, equipped with dynamic balancing machines and performance test benches, with monthly production capacity of 5 million RMB. Our low-pressure anti-corrosion fans are known for high cost-effectiveness, reliable operation, and convenient maintenance, widely applied in industries including chemicals, electroplating, and electronics, with customers nationwide.

One-year warranty; manufacturing defects within the warranty period are repaired or replaced free of charge. Dedicated team responds within 24 hours and provides solutions within 48 hours. Low-pressure anti-corrosion fans have simple structure and convenient maintenance; we provide operator and maintenance training to guide customers in daily inspection and consumable parts replacement. Beyond the warranty period, lifetime cost-price repair is offered with supply of corrosion-resistant impellers, motors, and seals. We regularly follow up with customers to understand equipment operating status and provide anti-corrosion coating inspection and repair recommendations.

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