The Fume Jet is built to a true volute form, and is tested in accordance to AMCA 260 and AMCA 311. The Fume Jet nozzles come in 18 difference sizes. CHEMCO Fume Jet is a vertical taper nozzle mounted on the fan outlet for dispersion of fumes to the atmosphere to prevent the contamination from settling and plugging. The Fume Jet casing is extremely rigid to ensure that it is free of vibration or drumming during operation. It is developed to give low noise level and trouble-free service. Material of PP, PE, PVC, PVDF, GRP, and epoxy coated steel or stainless steels for superior corrosion resistance quality. The Fume Jet nozzle is designed to provide adequate exit velocities that will help prevent plume downwash.