Invention Grant
US07802589B2 Multirate tubing flow control valve 有权
多管油管流量控制阀

Multirate tubing flow control valve
Abstract:
A flow control valve includes a stem extending into an interior bore defined by a wall of a flow control member of the valve, the stem and the wall defining therebetween a cylindrical space allowing fluid communication between apertures formed in differing planes of the flow control member.
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