Abstract: An energizing element including: an energizing element body including an annular filament oriented about a central axis, the annular filament including a plurality of oscillations generally directed down the central axis, where at least one oscillation includes an internal circumferential void having a first circumferential width, WFV, and a second circumferential width, WSV, located at a different axial position along the oscillation, and where WFV?WSV.

Abstract: A seal for a ball valve comprising a resilient ring defining an engagement feature; a first polymer ring disposed adjacent to a first axial end of the resilient ring and coupled with the engagement feature; and a second polymer ring disposed adjacent to a second axial end of the resilient ring and coupled with the engagement feature.

Abstract: A seal comprising an annular jacket comprising a body defining an annular recess; a helical spring disposed within the annular recess; and a support member disposed within the helical spring to provide a biasing force against the helical spring in the operational state.

Abstract: Systems and methods are disclosed that include providing a valve suitable for maintaining a seal and preventing fluid flow through the valve at cryogenic temperatures. The valve includes a valve body having a longitudinal axis along a flow path through the valve, a ball selectively rotatable within the valve body to selectively allow fluid flow through the valve, a seat insert cavity formed within the valve body, and a seat insert assembly at least partially disposed within the seat insert cavity. The seat insert assembly includes a seat insert comprising at least one sealing lip and a support ring engaged with the at least one sealing lip and configured to bias the at least one sealing lip against a portion of the seat insert cavity to prevent leakage through a second leakage path when the ball valve is selectively rotated to prevent fluid flow through the valve.

Abstract: Systems and methods include providing an annular seal stack for an assembly. The seal stack assembly includes, at least one second annular seal, a spacer disposed axially adjacent to the at least one second annular seal, and a third annular seal disposed axially adjacent to the spacer. The seal stack assembly is disposed between a probe and a housing of the assembly and configured to provide an annular seal between the probe and the housing during operation of the assembly at cryogenic temperatures, during exposure of at least a portion of the seal stack assembly to cryogenic temperatures, during a change in pressure, during a change in temperature, or a combination thereof.

Abstract: Systems and methods are disclosed that include providing a valve suitable for maintaining a seal and preventing fluid flow through the valve at cryogenic temperatures. The valve includes a valve body having a longitudinal axis along a flow path through the valve, a ball selectively rotatable within the valve body to selectively allow fluid flow through the valve, a seat formed within the valve body and comprising a cavity having an angled wall, and a seat insert at least partially disposed within the cavity and having a first sealing surface that forms a first sealing interface with the ball to prevent leakage through a first leakage path and a second sealing surface that forms a second sealing interface with the angled wall to prevent leakage through a second leakage path when the ball valve is selectively rotated to prevent fluid flow through the valve.

Abstract: Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes an annular support ring disposed within the spring. The support ring biases an outer diameter (OD) of the spring towards the outer sealing leg of the jacket to maintain contact pressure between the inner sealing leg of the jacket and the shaft of the assembly. The support ring controls thermal shrinkage of the spring and the outer sealing leg to maintain a seal between a housing and a shaft of the assembly when the assembly is operated at cryogenic temperatures.

Abstract: Systems and methods are disclosed that include providing a valve suitable for maintaining a seal and preventing fluid flow through the valve at cryogenic temperatures. The valve includes a valve body, a ball selectively rotatable within the valve body, a seat having a seat insert at disposed within the valve body and configured to form a seal with the ball, and a seal disposed within a cavity formed between the valve body and the seat. The seal includes a seal body having a heel, an upper leg and a lower leg extending from the heel, and a cavity comprising a first cavity portion and a second cavity portion disposed between the upper leg and the lower leg. The first cavity portion includes at least one energizing element, and the second cavity portion may be free of an energizing element or include an energizing element.

Abstract: Systems and methods are disclosed that include providing a valve suitable for maintaining a seal and preventing fluid flow through the valve at cryogenic temperatures. The valve includes a valve body having a longitudinal axis along a flow path through the valve, a ball selectively rotatable within the valve body to selectively allow fluid flow through the valve, a seat formed within the valve body and comprising a cavity having an angled wall, and a seat insert at least partially disposed within the cavity and having a first sealing surface that forms a first sealing interface with the ball to prevent leakage through a first leakage path and a second sealing surface that forms a second sealing interface with the angled wall to prevent leakage through a second leakage path when the ball valve is selectively rotated to prevent fluid flow through the valve.

Abstract: A seal including a metal annular body having an inner diameter and an outer diameter, the annular body including a main body portion including a first lip extending axially from the main body portion, the first lip adapted to provide a radial seal; and a second lip extending radially from the main body portion toward the outer diameter, the second lip adapted to provide an axial seal.

Abstract: An annular seal comprising a first energized jacket defining a first axial end of the annular seal; a plurality of seal rings defining a second axial end of the annular seal; a second energized jacket disposed between the first energized jacket and the plurality of seal rings; and a spacer disposed between the first and second energized jackets.

Abstract: A seal for a ball valve comprising a resilient ring defining an engagement feature; a first polymer ring disposed adjacent to a first axial end of the resilient ring and coupled with the engagement feature; and a second polymer ring disposed adjacent to a second axial end of the resilient ring and coupled with the engagement feature.

Abstract: A stem packing assembly including a first annular member defining a central axis, a second annular member defining a central axis coaxial with the central axis of the first annular member, and an annular energizing member defining a central axis coaxial with the central axis of the first annular member. In an embodiment, the stem packing assembly can have a leakage rate according to ISO 15848-1 of less than 1×10?4 mgs?1m?1 for at least 500 cycles at 160° C., and less than 1×10?4 mgs?1m?1 for at least 500 cycles at ?46° C. In another embodiment, the first annular member can include a PAEK, the second annular member can include a PTFE, and the annular energizing member at least partially includes a PTFE.

Abstract: A seal including a metal annular body having an inner diameter and an outer diameter, the annular body including a main body portion including a first lip extending axially from the main body portion, the first lip adapted to provide a radial seal; and a second lip extending radially from the main body portion toward the outer diameter, the second lip adapted to provide an axial seal.

Abstract: A seal comprising an annular jacket comprising a body defining an annular recess; a helical spring disposed within the annular recess; and a support member disposed within the helical spring to provide a biasing force against the helical spring in the operational state.

Abstract: A stem packing assembly including a first annular member defining a central axis, a second annular member defining a central axis coaxial with the central axis of the first annular member, and an annular energizing member defining a central axis coaxial with the central axis of the first annular member. In an embodiment, the stem packing assembly can have a leakage rate according to ISO 15848-1 of less than 1×10?4 mgs?1m?1 for at least 500 cycles at 160° C., and less than 1×10?4 mgs?1m?1 for at least 500 cycles at ?46° C. In another embodiment, the first annular member can include a PAEK, the second annular member can include a PTFE, and the annular energizing member at least partially includes a PTFE.