Lead-Acid Battery Vent Caps and Plugs from China
Flame-arrestor vent caps with pressure relief valves for flooded lead-acid storage batteries in forklifts and telecom backup systems. Made of polypropylene, they allow gas escape while preventing sparks and are HTS 8507.90.40.00 parts.
Duty Rate — China → United States
53.5%
Rate breakdown
9903.91.0125%Effective with respect to entries on or after September 27, 2024, articles the product of China, as provided for in subdivision (b) of U.S. note 31 to this subchapter
9903.94.0525%Except for products described in headings 9903.94.06, 9903.94.32, 9903.94.33, 9903.94.42, 9903.94.43, 9903.94.44, 9903.94.45, 9903.94.52, 9903.94.53, 9903.94.54, 9903.94.55, 9903.94.62, 9903.94.63, 9903.94.66 and 9903.94.67, automobile parts, as provided for in subdivision (g) of U.S. note 33 to this subchapter
9903.74.110%Articles as provided for in subdivision (l) of U.S. note 38 to this subchapter.
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include test data on flame retardancy and pressure relief specifications
• Match vent design to specific battery cell sizes (e.g
• 6-cell vs 12-cell)
• Ensure compliance with UN38.3 transport regulations for plastic components