Copper Bubble Cap Bubble Caps for Distillation Bubble Plate

The trays have openings to allow vapor to flow upward through the column, as well as conduits (downcomers) to allow condensed liquid to flow downward. The tray is designed to promote intimate contact between the upward-moving vapor and downward-moving liquid. Each tray effects a portion of the separation before the vapor and liquid move to the next tray in the column until the desired concentrations (purities) are reached. Common types of trays include bubble-cap trays.