Metering Valve
AssigneeStrahman Valves, Inc.
InventorSamuel Gregory Stednitz
Life of this patent
Estimating the term…
Abstract
A fluid metering valve comprises a valve body including an inlet opening and an outlet opening. A seal ring is installed within the valve body and defines an opening in communication with the inlet opening and the outlet opening. A valve assembly is arranged at least partially within the valve body and includes a valve stem and a piston moveably mounted to the valve stem with at least one degree of freedom. The piston is moveable into and out of sealing contact with the seal ring via the stem for selectively permitting fluid flow between the inlet opening and the outlet opening through the opening in the seal ring.
Claims20
A sealing assembly for a metering valve, comprising:
- a valve stem;
- a piston removably attached to the valve stem, the piston and stem defining at least one degree of freedom of movement therebetween with the piston attached to the stem;
- and
- a sealing ring adapted to be sealed to an interior of the metering valve and defining a tapered sealing seat corresponding to a tapered sealing surface of the piston.
A sealing assembly for a valve, comprising:
- a stem having a protruding free end;
- a piston coupled to the protruding free end;
- the piston is moveable when attached to the protruding free end in a plurality of radial directions with respect to a central axis of the stem;
- and
- a bonnet engaging with the stem and attachable to the valve.
A sealing assembly for a valve comprising:
- an elongated stem;
- a tapered conical piston coupled to a protruding free end of the stem;
- a bonnet partially abutting an outer portion of the valve, the stem coupling to an internal thread of the bonnet;
- the piston is moveable when attached to the protruding free end in a plurality of radial directions with respect to a central axis of the stem.
Dependencies are inferred from the claim text.