Fluid handling – Systems – Multi-way valve unit
Patent
1985-07-18
1986-10-21
Rosenthal, Arnold
Fluid handling
Systems
Multi-way valve unit
13762537, 138 42, 251127, 181226, 181267, F16K 4708, F15D 100
Patent
active
046179631
ABSTRACT:
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.
REFERENCES:
patent: 871775 (1907-11-01), Blanchard et al.
patent: 3780767 (1973-12-01), Borg
patent: 3813079 (1974-05-01), Baumann et al.
patent: 3954124 (1976-05-01), Self
patent: 3971411 (1976-07-01), Baumann
patent: 3987809 (1976-10-01), Baumann
patent: 4367807 (1983-01-01), Fink et al.
Fisher Controls, bulletin 80.2.018, Apr. 1976, Cavitrol III, Trim.
McGraw-Edison Company
Rosenthal Arnold
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