Micropump offers leak-free, high flow pumping

Available from Michael Smith Engineers, the miniature pumps provide flow rates to 25 lit/min and differential heads up to 14m, with maximum rated system pressures of 13.8bar (200psi). The pumps are suitable for OEM circulating and transfer applications requiring higher flows and lower differential pressures. The Eagle Drive is a compact electromagnetic drive with no moving parts. This brushless DC drive can be run on a range of power supply voltages from 10V to 38V DC, giving an output speed range between 250 and 10,000rpm. It also has variable speed operation using 0 to 5 V DC signal. Other features include over temperature, under voltage and internal fault output signals, surface mounted electronics, and a built-in microprocessor control and tachometer output. The pump's magnetic drive removes the need for direct drive connection to the pump impeller and so eliminates the potential leak points associated with shaft seals used in other types of pump. This feature, combined with the pump casing passageway design, is proportioned so that fluid maintains its velocity head with minimal energy loss.