LIAG® LEAKAGE CONTROL OF THE MOVING O-RING SEAL OF ARC VALVES

PRODUCT DESCRIPTION

LIAG® free flow shutter valves are designed for maximum product safety in aseptic processes. The valves feature a unique leakage monitoring system for the dynamic O-ring seal, which identifies possible wearing defects and prevents contamination from the external environment. This special design ensures the highest level of product integrity and reliability in critical applications.

The leakage chamber can be configured as a steam barrier or equipped with a level of conductor control for monitoring via glycerine dilution. The pivoting axle is supported by a ball-bearing shaft, providing increased stability and reduced operating torque compared to standard shutter valves. This innovative design offers superior performance and ease of use in demanding process conditions.

FEATURES AND BENEFITS

• Maximum product safety for aseptic processes
• Prevents contamination from the outside environment due to excessive wearing or defective stem O-ring seal
• Quick-acting valve with low operating torque requirements (ball-bearing supported main shaft)
• Retrofittable to shutter valves DIN DN40 – DN 80 / SMS 38 – 76 / Inch 1.5"– 3"
• A leakage chamber can act as a steam barrier or offer monitoring via level conductor control (glycerine dilution)

APPLICATIONS

• Aseptic processes in pharmaceutical, biotech, and food industries
• Processes requiring high levels of product safety and integrity
• Applications with strict contamination prevention requirements
• Retrofitting existing shutter valves for improved performance and reliability

PERFORMANCE

• Valve sizes: DIN DN40 – DN 80 / SMS 38 – 76 / Inch 1.5"– 3"
• Low operating torque due to ball-bearing supported main shaft
• Effective leakage monitoring and contamination prevention
• Compatible with a steam barrier or level conductor control monitoring