Globe valve assembly
OwnerMichael Pellegriniinventor
Life of this patent
Estimating the term…
Abstract
A valve assembly for controlling a flow of a substance through the valve assembly includes a valve body defining an inlet, an outlet, and a volume therebetween and a sleeve disposed in at least a portion of the volume, an interior of the sleeve having a first opening in fluid communication with the inlet and a second opening in communication with the outlet. The valve assembly also includes a seat ring releasably held in place in the valve body by the sleeve at at least one of the first opening or the second opening. The valve assembly further includes a stem disposed in the sleeve and a plug releasably engaged to the stem and configured to contact the seat ring to control the flow of the substance through the valve assembly.
Claims18
A valve assembly for controlling a flow of a substance through the valve assembly, the valve assembly comprising:
- a valve body defining an inlet, an outlet, and a volume therebetween;
- a sleeve disposed in at least a portion of the volume, an interior of the sleeve having a first opening in fluid communication with the inlet and a second opening in communication with the outlet;
- a seat ring releasably held in place in the valve body by pressure exerted by a lower end of the sleeve at at least one of the first opening or the second opening without the seat ring being secured by a mechanical fastener to the valve body;
- a stem disposed in the sleeve;
- a plug releasably engaged to the stem and configured to contact the seat ring to control the flow of the substance through the valve assembly;
- an actuating subassembly that receives the stem and comprising a lower mounting flange having a lower mounting flange body that is threaded into the valve body;
- and
- a dowel inserted in a wall of the sleeve at an upper end and in the lower mounting flange body to align the sleeve in the valve body.
A method for controlling a flow of a substance through a valve assembly, the method comprising:
- flowing the substance through the valve assembly, the valve assembly comprising:
- a valve body defining an inlet, an outlet, and a volume therebetween;
- a sleeve disposed in at least a portion of the volume, an interior of the sleeve having a first opening in fluid communication with the inlet and a second opening in communication with the outlet;
- a seat ring releasably held in place in the valve body by pressure exerted by a lower end of the sleeve at at least one of the first opening or the second opening without the seat ring being secured by a mechanical fastener to the valve body;
- a stem disposed in the sleeve;
- and a plug releasably engaged to the stem and configured to contact the seat ring;
- an actuating subassembly that receives the stem and comprising a lower mounting flange having a lower mounting flange body that is threaded into the valve body;
- and a dowel inserted in a wall of the sleeve at an upper end and in the lower mounting flange body to align the sleeve in the valve body;
- and
- at least one of:
- (i) rotating the stem in one direction to force the plug against the seat ring to stop the flow of the substance through the valve assembly or (ii) rotating the stem in an opposite direction to unseat the plug from the seat ring to allow the flow of the substance through the valve assembly.
Dependencies are inferred from the claim text.