Fluid flow control members for use with valves
AssigneeFisher Controls International LLC
InventorsChun Lin, Eric Alan Miller, Roy Ronald Pelfrey, Yan Tao Sun, Fan Jian Jun
Life of this patent
Estimating the term…
Abstract
Fluid flow control members for use with valves are described herein. An example fluid flow control member for use with a valve includes a body having a seat to control a fluid flow through the valve. The body defines a seating surface, an aperture to receive a stem of the valve and a plurality of substantially flat surfaces to enable gripping an exterior surface of the body.
Claims19
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through a valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- and
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body, wherein the exterior surface defines a conically shaped portion.
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through a valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- and
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body, wherein the stem comprises a surface to substantially prevent fluid flow through the body when the seating surface sealingly engages the valve and a plug of the valve is in a fully open position.
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through a valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body;
- and
- fluid flow channels through the body to fluidly couple a chamber of the valve to another chamber, the fluid flow channels having separate openings adjacent the seating surface.
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through the valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- and
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body;
- and
- a sliding member having an exterior surface to slidably and sealingly engage a bore defined by the body, the aperture is different than the bore.
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through the valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- and
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body;
- a sliding member having an exterior surface to slidably and sealingly engage a bore defined by the body;
- a plate coupled to the body to position the sliding member within the bore;
- and
- a biasing element positioned within the bore to urge the sliding member away from the body.
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through the valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- and
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body;
- and
- a sliding member having an exterior surface to slidably and sealingly engage a bore defined by the body, wherein the sliding member has a surface to be engaged by a surface of a spring seat coupled to the stem to control a fluid flow between another chamber and a chamber of the valve.
A fluid flow control member for use with a valve, comprising:
- a body having a seat to control a fluid flow through the valve, wherein the body defines:
- a seating surface;
- an aperture to receive a stem of the valve;
- and
- a plurality of substantially flat surfaces to enable gripping an exterior surface of the body, wherein the flat surfaces comprise first surfaces being substantially parallel to one another and second surfaces being substantially co-planer to one another, respective first and second surfaces defining opposing steps.
Dependencies are inferred from the claim text.