Micropump”s micro annular gear pumps are available in a low-pressure (Series ML) or high-performance (Series MH) configuration. For maximum dosage accuracy, Series ML and MH pumps feature high-precision rotors that provide tight flowrate control, even at differential pressures as high as 80 bar (1,160 PSI). These rotors allow the pumps to dispense volumes as small as 0.25 microliters and handle flowrates from 0.15 to 300 ml/min, with accuracies within +/- 1 percent. In addition, the pumps use gear tooth forming technology that keeps pulsations to a minimum to provide the smooth, constant flow necessary in applications such as analytical lab instruments, medical diagnostics, chemical processing, fuel cells, biotechnology, micro-reaction technology, and other critical application processes. Measuring as small as 13 mm (0.51 inches) in diameter by 68 mm (2.67 inches) in length, Series ML and MH micro annular pumps are easily integrated into OEM equipment with small footprint, low weight, and short tubing length requirements.