Product Detail

Spring energized valve stem packing contributes to the overall performance of industrial operations. They serve the vital task of keeping oil and liquids in while keeping contaminants out. 

A valve stem packing assembly in the form of a stacked array, comprising

(a) a plurality of seal ring elements each having a generally V-shaped cross-sectional configuration;

(b) a plurality of backup/energizing rings interspersed between and in supportive relationship with the seal ring elements, said backup/energizing rings having a generally Y-shaped cross-sectional configuration;

(c) a spring-energized lip seal ring adjacent one of the backup/energizing rings, said lip seal ring including a central base and a pair of sealing lips extending therefrom whereby the lip seal ring has a generally U-shaped cross-sectional configuration. Our spring energized seal family is supported by a variety of spring types and materials, depending on the seal shape and application. We have a range of standard materials and profiles, and can provide a variety of choices. Most materials are also NACE approved.

(d) an adapter ring having a generally T-shaped cross-sectional configuration and extending into a supportive relationship with the lip seal ring to prevent dislocation of said seal ring when the packing assembly is in functional position between a valve stem and a surrounding valve element, and said valve stem is cycled in a translatory manner.

JST’s spring energized seals comply with API Q1 specification and can be used for API 6A valves and API 6D ball valves.