Today, Blackmer is the world's leading manufacturer of rotary-vane pumps. They offer the best combined characteristics of sustained high level performance, energy efficiency, trouble-free operation and low maintenance cost. Blackmer pumps are widely used by the U.S. defense agencies, and have long been the preferred technology for transfer, transport and delivery of petroleum products and liquefied gases. Blackmer's unique sliding-vane design is now recognized worldwide for handling industrial process fluids, Volatile Organic Compounds, abrasive slurries and viscous liquids.