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Control valve with high performance valve cage

  • US 10,458,555 B2
  • Filed: 04/19/2017
  • Issued: 10/29/2019
  • Est. Priority Date: 04/19/2017
  • Status: Active Grant
First Claim
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1. A control valve, comprising:

  • a body having an inlet and an outlet;

    a valve seat positioned in a passageway of the body between the inlet and the outlet;

    a valve plug positioned within the body and movable between an opened position and a closed position to modulate a fluid flow at the outlet; and

    a cage disposed within the body adjacent the valve seat and proximate the valve plug, the cage comprising;

    a circumferential wall having an outer surface and an inner surface aligned along a longitudinal axis of the cage, a first end, and a second end opposite the first end;

    whereinthe outer surface defines an outer flow length, the outer flow length defined by a longitudinal distance between a centerline of a first outlet formed in the outer surface, closest to the first end of the cage, and a centerline of a second outlet formed in the outer surface, closest to the second end of the cage; and

    the inner surface defines an inner flow length that is less than the outer flow length, the inner flow length defined by a longitudinal distance between a centerline of a first inlet formed in the inner surface, closest to the first end of the cage, and a second inlet formed in the inner surface, closest to the second end of the cage.

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