Double-stop floating ball valve

Details Double-stop floating ball valve Double-stop floating ball valve

2008-04-01

2008-04-01

Kirshnamurthy, Ramesh (Department: 3753)

Valves and valve actuation

Rotary valves

Ball valve

C251S286000, C251S174000

Reexamination Certificate

active

11175902

ABSTRACT:
Valve assemblies and methods of designing valve assemblies having a valve ball, an upper seat, and a lower seat. When fluid pressure is applied to the valve ball, the valve ball will float in the axial direction between an upper position, a neutral position, and a lower position in response to fluid pressure. The valve assembly may be made suitable for internal blowout preventers.

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