Poppet and seat cartridge valve subassembly
AssigneeSwagelok Company
InventorStephen James Franklin
Life of this patent
Estimating the term…
Abstract
A valve subassembly includes a body plug, a poppet, and a seat carrier. The body plug includes a tubular side wall defining a central cavity and one or more lateral flow apertures in the side wall. The poppet includes axially extending upper and lower stem portions and a radially extending poppet sealing portion between the upper and lower stem portions, with the lower stem portion and the poppet sealing portion being received in the central cavity of the body plug. The seat carrier is assembled with the body plug and includes a central bore receiving the upper stem portion of the poppet therethrough, the seat carrier retaining a seat seal in radial alignment with the poppet sealing portion.
Claims20
A valve subassembly comprising:
- a body plug including a tubular side wall defining a central cavity and one or more lateral flow apertures in the side wall;
- a poppet including axially extending upper and lower stem portions and a radially extending poppet sealing portion between the upper and lower stem portions, with the lower stem portion and the poppet sealing portion being received in the central cavity of the body plug;
- a seat carrier including a central bore receiving the upper stem portion of the poppet therethrough, the seat carrier retaining a seat seal in radial alignment with the poppet sealing portion;
- and
- a piston assembled with the central bore of the seat carrier and including a lower end portion engaging the upper stem portion of the poppet and an upper end portion extending above the seat carrier;
- wherein the seat carrier is assembled with the body plug to retain the poppet, the seat seal, and the piston together with the seat carrier and the body plug as a replaceable cartridge subassembly.
Dependencies are inferred from the claim text.