The AC5 fan-cooled vacuum pump from Moro USA is a continuous-duty vacuum pump for tough industrial applications. It is capable of a continuous vacuum of 22 inches Hg with a free flow rate of 460 cfm, capable of pumping nonvolatile liquids and sludge from long distances. The suggested tank size is 2,000 to 6,000 gallons. It includes an integrated check valve, changeover valve, automatic oiling system, industrial-duty bearings, Viton seals and high-flow-rate asbestos-free spark-proof vanes. It doesn’t require a liquid cooling system. Dual cooling fans keep it operating efficiently, even in rigorous conditions. It includes 4-inch flange connections and is available in preassembled pump packages complete with stand, secondary, oil catch and drive, gearbox, hydraulic, and in-pulley or engine-driven models. 800/383-6304; www.morousa.com.