Weir

A weir is a precision-engineered component typically integrated into trays, sieves, or valve assemblies to regulate the flow, depth, or distribution of materials (liquids, powders, granules) by creating a controlled overflow or barrier. It ensures uniform processing, separation efficiency, and process stability in applications like screening, sedimentation, or dosing.

Operates by creating a physical barrier at a specific height within a tray or channel. Materials flow over the weir's crest, with the overflow rate determined by the weir's geometry (e.g., notch shape, height), allowing for controlled separation, metering, or distribution based on fluid dynamics or particle size.