Methods, systems, and apparatus for a gate valve include a valve body having an inner surface and an outer surface, the inner surface and the outer surface defining an inlet, an outlet, and a fluid path therebetween, a track defined in the inner surface, the track defining a bottom surface; a gate having a wing; a scraper having a leading edge, the scraper mounted to the wing of the gate; a biasing element, the biasing element biasing the leading edge of the scraper against the bottom surface of the track.