The recently introduced Series MP7000 mechanically actuated diaphragm metering pump (photo) was designed to be a low-flow version of this company’s Series MP7100 metering pump. With the ability to dose a wide range of mild to aggressive chemicals, including those used in water and wastewater treatment and chemical processing, the Series MP7000 eliminates the need for intermediate fluid or hydraulic oil to actuate the diaphragm and reduces the potential for gearbox oil to contaminate the process. Series MP7000 pumps also feature the following: a finned gearbox that readily dissipates the heat created during normal operation; oversized check valves that improve performance and minimize friction losses; and rugged bronze gears for quiet running. Additionally, the straight-through flow design of the Series MP7000 liquid end and the elimination of the contour plate result in improved flow characteristics, making the pump suitable for pumping difficult chemicals, such as viscous fluids, shear-sensitive fluids and fluids with suspended solids. Series MP7000 pumps deliver capacities to 27 gal/h and operating pressures up to 16 bars. — Neptune Chemical Pump Co., North Wales, Pa.