Downcomer Pipe Assembly from Canada
Downcomer pipes circulate unheated water from steam drum to boiler lower headers in natural circulation systems. HTS 8402.90.00 covers these dedicated circulation components. Heavy wall seamless construction.
Duty Rate — Canada → United States
14.3%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Calculate pipe sizing for circulation rates; hydrotest at 1.5x MAWP; ensure seamless construction certification