Capping Valves with Fast-Fill System The batch digester opening at the top is either closed with a capping valve or a manual system using a blank may be employed in older mills. Replacing the manual blank with an automated capping Stargate-O-Port-Valve®, which is interlocked with a pressure switch, prevents opening of [...]

For many years, Batch Mill Operations Group struggled with production interruptions. These were caused by inadequate blow valves, blow lines and associated gaskets. After a comprehensive analysis, Fibrelines Engineering and Batch Mill Operations groups determined that shock loads were occurring when residual liquid in the blow lines drained from an adjacent digester. [...]

“The Solution to the Sticking Scale conundrum” Dating back to 1995, Stainless Valve Co. has developed a version of the successful Stargate-O-Port-Valve® AS specifically for black liquor heater isolation for continuous digester and batch digester systems. Depending on the process conditions, species of wood used, and the digester kappa, a different severity of [...]