Wolter's CHEMCO Fume Jet mounted on fan, with casing build to a true volute form, is tested in accordance to AMCA 210, AMCA 260 and AMCA 300 to give exact amount of air and velocity. The Fume Jet comes with 2 types. S type of Single windband with low pressure losses. The H type of Single and Double windband with higher plume and entrainment capability. Each type comes in 17 difference sizes. Capacity up to 180,000 cmh, static pressure up to 5,000 Pa and dispersion height up to 40 meter at 16Km/ hr wind speed. The cone is designed to increase induce draft by up to 3 times the exhaust flow volume. Wolter's CHEMCO Chemical resistant plastic fans can be mounted with Fume Jet.Wolter's 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 nozzle 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, epoxy coated steel or stainless steels offers superior corrosion resistance quality. The Fume Jet nozzle is designed to provide adequate exit velocities that will help prevent plume downwash. Usually it is 1.5 times the maximum expected wind speed at the nozzle exit (U.S. EPA, 1985).