Garlock style 1398 is a nuclear grade braided flexible graphite valve stem packing.
The graphite-containing INCONEL® filament reinforces the packing to handle BWR (General Electric) and PWR (Westinghouse, Combustion Engineering, and Babcock Wilcox) valve service conditions as an end-ring material for use with other graphite products. Style 1398 can also be used as a bushing material in the bottom of the stuffing box to fill any excess depth not needed for sealing components.