Labyrinth Control Valveis the most effective and reliable control valve under high temperature, high pressure drop and other severe service. The specially designed flow path forces fluid through a tortuous path of right-angle turns, constantly changes its directions and impacts on the path, to control the pressure and kinetic energy letdown and limit the fluid velocity effectively. This kind of valve may effectively prevent cavitation for uncompressed fluid and may effectively reduce the noise of compressed fluid. Labyrinth valve may effectively prevent flushing and vibration of the valve trim.