Gear Operated PTFE Lined Butterfly Valve

ALIS Valves offers Gear Operated PTFE Lined Butterfly Valves designed for reliable flow isolation and control in industrial piping systems handling corrosive and chemically aggressive media. These valves feature a disc mounted on a rotating shaft, with PTFE lining providing a chemically resistant barrier between the process fluid and the valve body in suitable designs. The gear-operated mechanism uses a handwheel and gearbox to reduce operating effort and provide controlled disc movement, particularly in larger valve sizes or applications requiring higher operating torque. The compact wafer or lug-style construction, depending on the configuration, supports installation between compatible pipeline flanges. Valve body materials, disc construction, PTFE lining, shaft materials and sealing arrangements can be selected according to the process media and specified operating conditions.

Gear Operated PTFE Lined Butterfly Valves are suitable for chemical processing, water treatment, pharmaceutical production, industrial effluent handling, pulp and paper processing and other applications where chemical compatibility and dependable shut-off are important. Depending on the lining design and material specifications, these valves can handle compatible acids, alkalis and other process fluids within their rated pressure and temperature limits. Important selection factors include valve size, flange standard, body and disc materials, PTFE lining compatibility, operating pressure, temperature range, media concentration and required leakage performance. Buyers should also consider the gearbox torque requirements, installation orientation and whether the valve is intended for isolation or limited throttling service. Since PTFE has specific pressure-temperature limitations and may be unsuitable for certain operating conditions, the complete valve assembly should be selected according to the actual process requirements. Choosing the appropriate gear-operated PTFE lined butterfly valve helps provide smooth manual operation, corrosion resistance and dependable flow control in compatible industrial applications.