Abstract: A material handling valve includes a housing having a vertical passageway therethrough and a seating surface extending around the lower end of the passageway. A support arm within the passageway has one end supported on the housing for pivotal movement about a horizontal first axis and has a tipping part at its opposite end. A valve member disposed below the housing is pivotally supported on the support arm. The valve member has on an upper side thereof a sheet of resilient material, and pivotal movement of the support arm moves it between positions in which the resilient sheet is respectively engaging and spaced from the seating surface to respectively obstruct and permit material flow. An actuating arm is pivotally supported about a second axis parallel to the first axis near an upper end of the housing, and a linkage arrangement operatively couples the actuating arm and support arm so that movement of the actuating arm effects pivotal movement of the support arm and valve member.