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.

A shaft sealing structure includes a plurality of V-packings that are stacked in multiple stages, and each of the V-packings is formed of a thick-walled annular top portion, a thin-walled inner side skirt portion, and a thin-walled outer side skirt portion. Adjacent ones of the top portions abut against each other, adjacent ones of the inner side skirt portions do not interfere with each other, and adjacent ones of the outer side skirt portions do not interfere with each other.

A control valve includes a body and a sleeve, the body having a flow passage therethrough, the flow passage having an inlet, an outlet, a first portion, a second portion, a junction of the first portion and the second portion, and an opening to the second portion. The first portion has a first axis centered through the inlet, a first bend, and a second axis. The second portion has a third axis centered through the outlet, a second bend, and a fourth axis. The fourth axis is perpendicular to the second axis. The first portion is upstream of the junction and the second portion is downstream of the junction. The second axis is centered through the junction. The opening has a fifth axis aligned with the second axis. The sleeve is fastened to the body within the first portion, the sleeve having a sixth axis aligned with the second axis.

A control valve includes a body and a sleeve, the body having a flow passage therethrough, the flow passage having an inlet, an outlet, a first portion, a second portion, a junction of the first portion and the second portion, and an opening to the second portion. The first portion has a first axis centered through the inlet, a first bend, and a second axis. The second portion has a third axis centered through the outlet, a second bend, and a fourth axis. The fourth axis is perpendicular to the second axis. The first portion is upstream of the junction and the second portion is downstream of the junction. The second axis is centered through the junction. The opening has a fifth axis aligned with the second axis. The sleeve is fastened to the body within the first portion, the sleeve having a sixth axis aligned with the second axis.

A filtration system comprises a housing and a shell housing removably coupled to the housing. A valve comprise a valve housing and a plunger. The plunger comprises a seal member structured to seal an opening in the valve housing. The plunger is axially movable between a closed position, in which the seal member seals the opening, and an open position, in which the seal member does not seal the opening, thereby permitting fluid to flow through the valve housing. A filter element comprises filter media and an endcap. The endcap comprises an alignment tab configured to rotationally secure the filter element with respect to the shell housing when the shell housing is received in the housing. The endcap comprise a valve interaction projection structured to transfer rotation of the filter element and the shell housing to the plunger during installation of the filter element.

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.

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.

A filtration system comprises a housing and a shell housing removably coupled to the housing. A valve comprise a valve housing and a plunger. The plunger comprises a seal member structured to seal an opening in the valve housing. The plunger is axially movable between a closed position, in which the seal member seals the opening, and an open position, in which the seal member does not seal the opening, thereby permitting fluid to flow through the valve housing. A filter element comprises filter media and an endcap. The endcap comprises an alignment tab configured to rotationally secure the filter element with respect to the shell housing when the shell housing is received in the housing. The endcap comprise a valve interaction projection structured to transfer rotation of the filter element and the shell housing to the plunger during installation of the filter element.

A Y-globe valve assembly includes a valve body having a neck portion defining a chamber with a circumferential wall and an integrated pressure relief passageway formed in the circumferential wall and communicating between the chamber and a flow passageway downstream of a valve port. A valve includes a core having an outer surface spaced radially inwardly from the circumferential wall of the valve body so as to define an annular space therebetween. The pressure relief passageway is in fluid communication between the annular space and the flow passageway upstream of the valve port when the valve is in at least the open position.