Wolter offers a complete range of high-quality induced flow fan with either centrifugal or mixed flow impellers for superior performance. With recent technical improvements, the induced flow fan now incorporates an “extended diffuser mixedflow effect (EDME)” impeller design that offers a nonoverloading power characteristic, higher efficiencies, good aerodynamic performance and lower noise emissions. The PF-WMX series of fans impellers are extremely reliable, ensuring maintenance-free operation as well as excellent corrosion resistance. Different materials i.e. Stainless steel, epoxy coated steel and thermo plastics materials can be processed in order to meet the demands of a multitude applications in the chemical industry and to convey different types of process air or gases. All fans are tested and rated in accordance with ISO 5801, AMCA 210, AMCA 260 and AMCA 300.The Fume Jet nozzles are characterized by a vertical taper nozzle mounted which is mounted on the fan housing 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. The nozzles come with 2 series. The “SE” series of single wind-band offer significant entrainment with low pressure losses. The “HE” series of single and double wind-band design offers superior higher plume and entrainment capability. Each series comes with 13 difference sizes capable of handling airflows up to 91,000 cmh, static pressure up to 2,200 Pa and dispersion height up to 35 meter at 16 km/hr or 10 mph wind speed. The wind-band is designed to induce draft by up to 270 ~ 300% of the exhaust flow volume. The Fume Jet nozzle is also 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).