We recently provided a cooling fan for a cheese plant with food-grade construction to comply with food safety standards.
The airstream components were built with 304 stainless steel materials with smooth and continuous welds. The fan housing includes a bolted access door with a flush interior surface and a tri-clamp ferrule drain. Stainless steel parts were finished with an SSPC-SP10 (learn more) glass bead blast and carbon steel parts were painted with a white epoxy coating.
To reduce energy costs, the fan wheel is backward curved and operates with an 80% static efficiency. The fan is mounted on a unitary base, complete with spring vibration isolators.