Discover our solution that further increases the reliability of the AL and BL series heavy-duty rotary valves (including AXL, BXL, BXXL and NR): the DMN-WESTINGHOUSE shaft seal air flow control. This system ensures a constant and controlled air flow, even during pressure fluctuations, to protect the shaft seals and prevent wear. This directly contributes to the reliability and performance of your installation. Unlike pressure, air flow can be monitored very accurately to detect blockages or leaks. Air flow control is the solution for CIP processes. Furthermore, precise control prevents powder residues from accumulating on the shaft seals, which could lead to seal failure, contamination, leakage, damage and costly downtime for cleaning and repair.