Ductile Iron Silent Check Valve from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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