Abstract: A Waterless Floor Drain Trap Valve is provided as a drain line backup to withstand the pressure from water/sewage reversing direction and flowing into the occupied space of the building. During usage, as a nut on the top of the Valve is tightened, the expandable outer seal forms a plurality of seal points within the inside diameter of the floor drainpipe while almost simultaneously the bottom cover travels in an upward direction further compressing the expandable outer seal and providing robust sealing to prevent backflow into the living space. The Waterless Floor Drain Trap Valve is further configured to connect remotely to various diagnostic devices, mobile platforms and applications for real-time monitoring of the valve performance.

Abstract: A Waterless Floor Drain Trap Valve is provided as a drain line backup to withstand the pressure from water/sewage reversing direction and flowing into the occupied space of the building. The Waterless Floor Drain Trap Valve comprises an inlet end with a recessed opening comprising a grate (or disk) to direct water flow, wherein the edge along the top surface of the grate (or disk) is flushed with the top surface of the inlet end, a top cover, an opposite outlet end with a bottom cover and an expandable outer seal positioned between the top and bottom cover, a fastener positioned proximate to the top cover, a threaded rod connected to a backflow preventer plate, a backflow plate spring along with a backflow preventer seal in connection with the bottom cover.