Steam Turbine Diaphragm Staging from China
Steam turbine diaphragm staging assemblies consist of stationary diaphragm rings with precision-mounted guide vanes that direct steam flow onto the rotating blades for optimal energy extraction. These components are essential for controlling steam pressure and velocity through the turbine stages, and are classified as 'other' parts under tariff item 8406.90.39, distinct from rotors, blades, or casings.
Duty Rate — China → Canada
Import Tips
• Ensure the diaphragm staging is described as a part for steam turbines of heading 84.06 on the commercial invoice
• Verify whether the goods qualify for duty-free treatment under a free trade agreement by providing a valid certificate of origin
• Be prepared to provide technical documentation, such as engineering drawings, to support classification if requested by the CBSA