F - Mech Eng,Light,Heat,Weapons – 15 – D
Patent
F - Mech Eng,Light,Heat,Weapons
15
D
137/138
F15D 1/00 (2006.01) F16K 47/08 (2006.01)
Patent
CA 1229024
CONTROL VALVE WITH ANTICAVITATION TRIM Abstract of the Disclosure A control valve includes a valve body with a fluid inlet and a fluid outlet. A valve seat is mounted within the valve body between the inlet and outlet. A valve plug is reciprocally mounted within the valve body to engage the valve seat. A plurality of valve cages are removably mounted on the valve seat and surround the valve plug. The valve cages are mounted to define axial flow galleries. One of the valve cages includes a plurality of apertures and fins that extend radially into a gallery between the first cage and a second cage. The second valve cage is adjacent to and surrounds the first valve cage. The second valve cage includes a plurality of apertures and fins that extend into the gallery area between the second cage and a third cage. The third cage surrounds and is adjacent the second cage. A plurality of apertures are defined in an upper portion of the third cage member. The first, second and third cage members may be positioned such that the apertures in each cage member are out of alignment to define a tortuous path along which fluid must flow between the cage members.
456253
Mcgraw-Edison Company
Shapiro Cohen
LandOfFree
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