Microchemical plants achieve large scale production using several microdevices in parallel arrangement. For this, it is necessary to have flow uniformity through all of them, using for that a flow distributor. Thus, the objective of this work is to analyze the influence of distribuitor geometry on flow uniformity. Different distributors were manufactured by 3D printing and were submitted to flow tests. It was observed that tapered distributors are more efficient than rectangular distributors and distributors with intermediate heights cause greater uniformity than short or high distributors.