Watson-Marlow offers a wide range of peristaltic chemical metering pumps and tubes, capable of handling flows from 0.0015 GPD to 17.6M and up to 100 psi. Watson-Marlow cased pumps have no seals or valves to clog, leak, corrode or replace. They handle the harshest fluids, stand up to the toughest industrial environment, and pump with extraordinary accuracy and flow control up to 875,000:1 in one pump. The duty fluid is contained within a chemically resistant tube; there is no contamination of the pump and no contamination of the fluid. Watson-Marlow cased pumps combine the toughness industry demands with the features vital to today’s highly tuned economic production techniques. Our pumps are easy to install, maintain and clean and are configured for industrial integration: PLC remote control, analog, SCADA and Profibus network control. With more than one million pumps in the field, our peristaltic pumps give our customers maximum reliability and minimum downtime.