John Crane 5-Ring Valve Packing Sets are available in Standard and Utility arrangements.
Standard Valve Packing:
John Crane offers a unique Valve Packing Set consisting of a pre-sized set of rings. The packing set contains five squared rings, which will seal the majority of liquids encountered in a refinery or petrochemical plant.
Utility Valve Packing: John Crane Utility Valve Packing Sets incorporate ultra-high-purity Crane-Foil® (flexible graphite) and ultra-high-purity graphite yarns to ensure low contaminant levels.