Lead-Acid Battery Vent Caps and Plugs
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If generic plastic caps not featuring battery-specific valves
Functional safety features for batteries determine specialized classification.
If for sealed batteries without venting needs
Valve-regulated lead-acid (VRLA) may use different closure systems.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• 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
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