Francis Turbine Runner
Francis turbine runners are mixed-flow impellers used in medium-head hydroelectric installations, featuring adjustable guide vanes for optimal performance. Made from high-strength alloys to withstand water pressure and cavitation. Falls under HTS 8410.90.00.00 as essential parts of hydraulic turbines.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as centrifugal pump parts
Similar impeller design may fall under pumps for liquids if not proven for turbine energy conversion.
If parts of electric generators when sold as complete turbine-generator sets
If imported with generator components as a set, may classify under parts of electric motors/generators.
If for gas turbine components
Non-hydraulic turbine parts go to heading 8411; specify water-specific design in documentation.
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Import Tips & Compliance
• Provide CAD drawings and hydraulic performance curves to substantiate classification and valuation
• Ensure RoHS compliance certification if containing electronic regulators; declare any hazardous materials
Related Products under HTS 8410.90.00.00
Kaplan Turbine Blades
Adjustable propeller blades for Kaplan turbines used in low-head, high-flow hydroelectric sites, allowing pitch variation for efficiency. Typically cast from stainless steel or bronze alloys. Classified as parts of hydraulic turbines under HTS 8410.90.00.00.
Turbine Draft Tube
Conical or elbow-shaped draft tube that recovers kinetic energy from water exiting hydraulic turbine runners, improving overall efficiency. Fabricated from welded steel plate. Parts of hydraulic turbines under HTS 8410.90.00.00.
Stay Ring for Turbine
Circular steel ring with radial stay vanes that support spiral casing and guide water flow evenly to wicket gates in Francis turbines. High-strength welded construction. Classified under HTS 8410.90.00.00 turbine parts.
Turbine Bearing Housing
Oil-lubricated bearing housings for supporting turbine main shafts, designed for continuous operation under high radial and thrust loads. Includes cooling jackets. HTS 8410.90.00.00 as hydraulic turbine parts.
Head Cover for Turbine
Top steel cover plate sealing the upper chamber of Francis turbines above the runner, designed to withstand hydraulic head pressure. Includes lifting lugs for maintenance. Parts under HTS 8410.90.00.00.
Servomotor for Wicket Gates
Hydraulic or electric servomotor actuating wicket gate linkages in reaction turbines, providing precise position control under high pressure. Integrated position feedback. Regulators/parts under HTS 8410.90.00.00.