Valveless, ceramic PDS100 metering pumps from Fluid Metering ensure that the stage up to full-scale production is successful. They routinely meter monomers, catalysts, food additives, acids, extraction solvents, alternative fuels, water treatment chemicals, and viscous fluids and slurries. The sapphire-hard internal components eliminate accuracy drift typical of pumping systems that rely on valves and elastomers to move fluid through the pump. They provide a valveless rotating/reciprocation piston design that eliminates the need for check valves, which can clog, leak or fail over time. The result is maintenance-free, drift-free fluid control that will hold an accuracy of 1 percent or better for millions of cycles. Flow rates can be infinitely controlled either mechanically and/or electronically via standard industrial control protocols. Flow control is viscosity independent for added flow rate stability. 800/223-3388;

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