These valves are specifically designed for digester blow service, providing the inherent advantages of ball valves for this critical pulp-mill application. 

Special features give these valves the capability to withstand characteristic extremes in pressure and temperature, passage of corrosive and abrasive media, thermal shock, and flashing. 

The highest degree of versatility to meet varying digester conditions is provided by the availability of metal wrapped filled-PTFE seats for operations requiring shutoff capability of polymeric seats. 

The balls are tunnel bored with rugged trunnion bearings to provide maximum flow and shock resistance for improved and long-lasting operation.