Fractionator tray valve

摘要

A movable valve body or fractionator tray bubble cap or element is equipped with downwardly extending legs or members dependent therefrom so shaped and arranged as to present and place in juxtaposition with an opening in a fractionator plate or tray a periphery of the dependent members somewhat larger than the opening in the tray the members also being so arranged that at least one member fits into the opening and extends to below the tray while another rests at the edge of the opening and is so shaped that application of pressure thereto will momentarily deform that member so that the cap can be and is permanently but movably retained within the opening.