Brass Diaphragm Pump Valve Assembly
A brass check valve assembly used in diaphragm pumps to control liquid flow direction and prevent backflow. Classified in HTS 8413.91.90 as other parts of liquid pumps, integral to metering and dosing applications. Ensures reliable sealing and durability in corrosive environments.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as standalone check valves
General check valves not dedicated to pumps are classified in 8481, separate from pump parts.
If dedicated to fuel or lubricating liquid pumps
Of fuel injection/transfer pumps have specific provisions excluding other diaphragm parts.
If plain brass tube/pipe fittings
Unmachined brass articles for piping are under Chapter 74 copper articles.
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Import Tips & Compliance
• Label with exact pump type (e.g
• metering pump) and flow specs to distinguish from general valves
• Require supplier affidavits confirming non-use in fuel injection systems to avoid 8413.91.10
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