Ductile Iron Silent Check Valve from Mexico
Ductile iron silent check valve designed to minimize water hammer with a spring-assisted disc for quiet operation in HVAC piping systems. It qualifies under HTS 8481.30.20.10 as an iron nonreturn appliance for boilers and tanks.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Specify ASTM A536 grade in certifications to prove ductile iron properties
• Include installation orientation diagrams to confirm pipe appliance use
• Avoid pitfall of classifying with insulation as a complete system component