The Ring Vac Pneumatic Conveying System has virtually no moving parts, conveys material at high rates and over long distances. It utilizes compressed air for a powerful, efficient venturi action along its length in a compact design for high capacity conveying over large distances. Available in standard versions in both anodized aluminum and stainless steel for high temperature and corrosive environments, and in higher performance hard anodized aluminum versions to convey for longer and higher distances and to convey abrasive and sticky materials.