Abstract: A sealing valve for a floor drain has three principal components held together by an actuating bolt. When tightened, the operating bolt compresses a central elastomeric member between a base portion of a first flanged member and a flat compression plate sealing off peripheral passageways as well as those extending through the flanged member and elastomeric member preventing incursion into the residence by sewage, sewer gases, bugs, rodents and other pests.