Valve seat assemblies for relief valves
AssigneeEmerson Automation Solutions Final Control US LP
InventorsJinzhi Si, Ashish Shaukat Kadiwal, Mehdi Pazoki, Archer Zhou, Baisen Ye
Life of this patent
Estimating the term…
Abstract
Valve seat assembly for relief valves are disclosed. An apparatus includes a valve seat, a retainer ring, and a spindle. The valve seat has a seating surface and a stem. The retainer ring has a central opening to receive the stem of the valve seat. The retainer ring and the valve seat to couple via a press-fit connection. The retainer ring to couple to the spindle via a clearance fit connection.
Claims19
An apparatus for use with a relief valve, the apparatus comprising:
- a valve seat having a seating surface and a stem;
- a retainer ring having a central opening to receive the stem of the valve seat, the retainer ring and the valve seat coupled via a press-fit connection;
- and
- a spindle, the retainer ring to couple to the spindle via a clearance fit connection.
The apparatus as defined in claim 3, wherein the skirt includes at least one bleed passage formed between a first end of the skirt and a second end of the skirt. The apparatus as defined in claim 4, wherein an inner surface of the annular wall of the skirt oriented toward the cavity includes an annular groove.
A relief valve comprising:
- a valve body defining a fluid flow passageway between an inlet and an outlet, the valve body defining a spring chamber to receive a biasing element;
- a nozzle positioned in the valve body and defining an orifice;
- and
- a valve seat assembly interposed in the fluid flow passageway, the valve seat assembly to move relative to the orifice to control fluid flow through the fluid flow passageway, the valve seat assembly including a valve seat, a retainer ring and a spindle, the valve seat coupled to the retainer ring via a press-fit connection, the retainer ring coupled to the spindle via a clearance fit connection, the retainer ring to allow the valve seat to self-align relative to the orifice.
A valve seat assembly for use with a relief valve, the valve seat assembly comprising:
- a valve seat including:
- a seating surface having a circular shape;
- a stem extending from the seating surface;
- and
- a tapered surface extending between the stem and the seating surface;
- and
- a retainer ring, the retainer ring having an opening to receive the stem, the valve seat and the retainer ring to couple via a press-fit connection between the valve stem and an inner surface defined by the central opening of the retainer ring.
Dependencies are inferred from the claim text.