US 11,754,190 B2
System and method for valve seat arrangements
Lauren Valera, Houston, TX (US); Jeremy Choate, Houston, TX (US); Keith Adams, Katy, TX (US); and Mahesha Udipi, Houston, TX (US)
Assigned to Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed by Baker Hughes Oilfield Operations LLC, Houston, TX (US)
Filed on Dec. 14, 2021, as Appl. No. 17/550,161.
Application 17/550,161 is a continuation of application No. 17/071,699, filed on Oct. 15, 2020, granted, now 11,199,270, issued on Dec. 14, 2021.
Prior Publication US 2022/0120350 A1, Apr. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F16K 3/20 (2006.01); F16K 5/06 (2006.01); F16K 5/20 (2006.01); F16K 3/02 (2006.01)
CPC F16K 3/207 (2013.01) [F16K 3/20 (2013.01); F16K 5/0673 (2013.01); F16K 3/0236 (2013.01); F16K 5/0689 (2013.01); F16K 5/201 (2013.01); F16K 5/205 (2013.01)] 17 Claims
OG exemplary drawing
1. A valve assembly, comprising:
a valve body;
a valve member extending through at least a portion of the valve body, the valve member being movable along a valve cavity axis between an open position and a closed position;
a seat pocket formed in the valve body, the seat pocket forming an annular recess in the valve body; and
a seat arrangement positioned at least partially within the seat pocket, comprising:
a lower seat extending radially inward from the annular recess toward the valve cavity axis;
an upper seat at least partially overlapping the lower seat, the upper seat extending radially inward toward the valve cavity axis to contact the valve member along a seat face, wherein the upper seat overlaps the lower seat to block the lower seat from contacting the valve member;
an interface seal positioned along an interface between the upper seat and the lower seat, the interface seal receiving a fluid pressure to drive the lower seat radially outward and into the annular recess; and
a biasing member positioned between the lower seat and the upper seat and out of contact from a working fluid associated with the valve body.