VOLUMETRIC FLOW CONTROL VALVE Russian patent published in 2019 - IPC B21B31/07 

FIELD: technological processes.

SUBSTANCE: invention relates to rolling equipment. Volumetric flow control valve provides control of volume flow rate of fluid medium in two discharge channels. Valve consists of cylinder with double piston, arranged in it with possibility of movement in axial direction, in which in area of its narrowed middle part, having dumbbell shape, central pressure chamber (130) is made. Along with supply of fluid medium in said central pressure chamber (130) there are two discharge channels (170-1, 170-2). According to the invention, the latter are located in the cylinder at such centre-to-centre distance 2d that when dual piston (120) is in the middle position relative to both discharge channels, the first discharge channel (170-1), at its preferably partial overlapping by first piston (120-1), and the second outlet channel (170-2), at its preferable partial overlapping by second piston (120-2), identical equal cross-section areas of the hole are left respectively.

EFFECT: invention provides the possibility of increasing uniformity of volumetric flow rate of fluid medium.

7 cl, 3 dwg