G - Physics
01
P
137/137, 293/15
G01P 5/14 (2006.01)
Patent
CA 1179917
ABSTRACT OF THE DISCLOSURE A choke flow bean is described which is unusually effective in reducing the pressure of fluids flowing through it. The choke flow bean has a well rounded circular or eliptical throat which opens smoothly and directly into a divergent truncated exit cone having a divergent angle of from 4° to 8°. The length of the truncated exit cone can be up to about 9 times the throat diameter. The outer sur- face of the choke flow bean is usually cylindrical in shape with external threads at the discharge end and a wrench fitting (e.g., hex-nut type) at the inlet end. The choke flow bean is usually embodied within the casing of a choke nipple with the assistance of choke adaptor. 29,143-F
400620
Smart & Biggar
The Dow Chemical Company
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