Stainless Steel Centrifugal Fan

There is a common problem in chemical plants, pharmaceutical facilities, food and beverage processing lines and wastewater treatment operations. Which is rotating equipment look perfectly fine from the outside but underneath the surface, the corrosion is already far along. Chloride ions begin to silently damage or create pores in the impeller of standard carbon steel. This silent damage continues for months without any warning signs and when engineers may notice the crack or holes, it is already late. This consequence can lead to a massive disaster in facilities. If the blade breaks while running at peak speed, it can destroy the bearing, shaft and entire housing within seconds.

The Stainless Steel Centrifugal Fan solves this problem right from the material selection stage. Every wetted component, such as the impeller, housing, inlet cone, shaft and fasteners is fabricated entirely of a premium grade of stainless steel. Most of the manufacturers are using SS316L austenitic stainless steel for better performance. This grade differs from common SS304. Because SS316L contains 2~3% molybdenum, which provides better protection in chloride-laden, acid vapor and aggressive reducing atmospheres. The "L" at the end of the name stands for low carbon, only 0.03% maximum. This protects the impeller's weld areas from intergranular corrosion, which is where ordinary-grade fans are most susceptible to damage. The independent testing has shown that the corrosion rate of SS316L in concentrated H₂SO₄ is only 0.086 mm/year, which is 5 times lower than standard SS304.

This Stainless Steel Centrifugal Fan do not compromise in performance. Because almost everything is made of SS316L in this unit. It also provides massive airflow up to 300000 m³/h with up to 29800 Pa static pressure. It has a strong motor power of up to 1,000 kW and up to 90% aerodynamic efficiency. Passivation or electropolishing surface treatments are available for pharmaceutical GMP and food-grade applications. We also provide IP66-rated motors and sealed bearing housings for chemical environments as standard and PTFE or EPDM gaskets are available on all flanged connections.