The drop through rotary valve type “VPS” has been studied and manufactured for the feeding and unloading of any kind of product in grains or powder. It is used in pneumatic conveying lines, mounted under a cyclone or at the fi lter exhaust. Manufactured in cast iron, nickel / chromium plated cast iron or stainless steel AISI316, thanks to its low tolerances and several type of rotors, it can fi t any type of product or special requirement of the customer. The valve is available with bare shaft or with motorization consisting of gearmotor or variable speed gearmotor and complete drive with chain guard according to CE rules