Steel Spring-Loaded Check Valve
An adjustable cracking pressure steel spring-loaded check valve for accumulator charging circuits and hydraulic reservoirs. It allows precise control of the pressure at which the valve opens, ensuring reliable system performance. This product is classified under tariff item 8481.30.00 as a nonreturn valve.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 the valve is specifically designed for oleohydraulic or pneumatic transmissions
Valves for fluid power transmissions are classified under 8481.20.00, which takes precedence over other subheadings.
If the valve has an adjustable flow control function beyond simple check operation
Valves with additional control features are classified under 8481.80.00.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Clearly describe the adjustable cracking pressure feature on the customs documentation to support classification as a check valve
• Ensure the valve's pressure settings are documented in the technical datasheet for CBSA review
• If used in hydraulic systems, verify compliance with relevant ISO or SAE standards
Related Products under Tariff item 8481.30.00
Brass Diaphragm Check Valve for Crystal Grinder Coolant
A brass diaphragm check valve designed for coolant systems in crystal grinders that shape semiconductor boules. It provides zero-leakage, unidirectional flow at pressures exceeding 850 kPa, ensuring precision during wafer preparation. Classified under tariff item 8481.30.00 as a check (nonreturn) valve of copper alloy.
Brass Inline Check Valve 1/4 Inch
> A compact 1/4-inch brass inline check valve for refrigerant lines and compressed air systems under low pressure, with ball or poppet mechanism. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.
Brass Non-Return Valve for Crystal Puller Gas Systems
A brass non-return valve rated above 850 kPa for argon or nitrogen gas lines in Czochralski crystal pullers. It ensures unidirectional gas flow to maintain ultra-pure monocrystalline silicon boule growth. Classified under tariff item 8481.30.00 as a check valve of copper alloy.
Brass Silent Check Valve 2 Inch
> A 2-inch brass silent check valve with cushioned disc closure to reduce water hammer in larger low-pressure water mains. It is a nonreturn valve for water distribution, classified under tariff item 8481.30.00.
Brass Swing Check Valve 1/2 Inch
> A 1/2-inch brass swing check valve designed to prevent backflow in low-pressure plumbing systems, featuring a hinged disc that swings open with forward flow and closes against reverse flow. It is a nonreturn valve, classified under tariff item 8481.30.00.
Bronze Horizontal Check Valve 3/8 Inch
> A 3/8-inch bronze horizontal inline check valve for fuel oil lines and low-pressure gas applications, oriented for horizontal piping. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.