초록 ▼

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

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.

대표청구항 ▼

A valve comprising: a. a valve body with a fluid inlet and a fluid outlet, b. a valve seat ring positioned in said valve body between said fluid inlet and said fluid outlet, c. a valve plug reciprocally mounted in said valve body and engaging said valve seat ring in a valve closed mode, d. a first c

A valve comprising: a. a valve body with a fluid inlet and a fluid outlet, b. a valve seat ring positioned in said valve body between said fluid inlet and said fluid outlet, c. a valve plug reciprocally mounted in said valve body and engaging said valve seat ring in a valve closed mode, d. a first cage member positioned in said valve body having two ends, a plurality of apertures, and a plurality of radially extending fins disposed over only one end of said first cage, e. a second cage member positioned in said valve body adjacent said first cage member and having two ends, a plurality of apertures adjacent only each end of said second cage member, and a plurality of radially extending fins over only one portion of the length of said second cage member, f. a third cage member positioned in said valve body adjacent said second cage member and having two ends, and a plurality of apertures adjacent only one end of said third cage member, and g. said cage members being positioned in said valve body to define substantially continuous axial, circumferential and radial flow passages between adjacent cage members which flow passages vary with the position of said plug from its closed mode.