sliding gate valve plate, sliding gate valves, sliding gate valve plate, metal can and sliding gate valve

摘要

The present invention relates to a sliding gate valve plate for use in a cast metal gate valve having: an upper surface, a lower surface, said upper and lower surfaces being flat and parallel to each other, an outer connecting surface that connects the upper surface to the lower surface and a flow channel that fluidly connects the upper surface (2) to the lower surface (3), said flow channel having a symmetry axis (xp). ), where the upper and lower surfaces have geometries defined for the following reasons: r1 = lol1 / lou1 between 50 and 95%, r2 = lol2 / lou2 between 50 and 95%, r3 = lal1 / lau1 greater than or equal to 75%, r4 = lal2 / lau2 greater than or equal to 75%, lou1 lou2 are two segments that lie on the axis of flow symmetry, xp, and together form the upper longitudinal extension, lou defined, as the longest segment. connecting d two points perimeter of the upper surface and crossing the axis of flow symmetry (xp); lau1 and lau2 are two segments that lie on the axis of flow symmetry, xp, and which together form the upper latitudinal extension, lau, defined as the normal extension a and crossing both the axis of flow symmetry, xp, and the longitudinal extension. upper and similarly lol1 and lol2 are two segments that lie on the axis of flow symmetry, xp, and which together form the lower longitudinal extension, lol, defined as the longest segment connecting two points of a perimeter of the lower surface. and that crosses the axis of flow symmetry (xp).