FIELD: machine engineering.
SUBSTANCE: valve cage for fluid medium flow controller contains a hollow cylindrical body, a noise absorption portion, a flow high-throughput portion and a transition portion. The noise absorption portion has a plurality of inlet openings, a plurality of outlet openings, and a plurality of tortuous flow paths extending between the inlet and outlet openings. The flow high-throughput portion is in axial direction adjacent to the noise absorption portion and comprises a first axial end, a second axial end, and plurality of primary flow openings. The transition portion is on the intermediate surface between the noise absorption portion and the second axial end of the flow high-throughput portion and comprises a plurality of transition openings. Each transition opening has a recess at the end of the flow high-throughput portion so that the transition portion ensures no dead zone in the valve cage between the noise suppression sections.
EFFECT: high throughput of flow when implemented in the fluid flow controller.
23 cl, 4 dwg
