www.jbj.co.uk/gear-pumps.html #DriveLineHarmony 27 Micro Hydraulic Gear Pumps Single Reversible Pumps As described at the beginning of the single rotation micro pump section, also bi-rotational models are rotary positive-displacement micro pumps with external gears. Their operating concept is the same as single rotation pumps. What changes is that bi-rotational pumps can rotate both clockwise and counterclockwise thanks to their perfectly symmetrical machining on the internal components. Some models have the external drain positioned on the flange or on the cover; connection pipes to the system tank should never be clogged or show reduced cross-section, otherwise pressure values might exceed 6 bar. The bi-rotational micro pump is capable of handling pressurized inflow. Please contact jbj Techniques technical department, email: info@jbj.co.uk or telephone: +44 (0)1737 767493 for system operating conditions other than indicated in the product tables.
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