Iron Pressure Reducing Valve Seat for Czochralski Pullers
A steel seat insert for hand-operated pressure-reducing valves maintaining stable argon pressure in Czochralski crystal pullers for silicon wafers. This part ensures a proper seal. It is classified under tariff item 8481.90.00 as a part of valves.
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 imported as part of a complete pressure-reducing valve
Complete pressure-reducing valves are classified under the specific subheading.
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
• Declare the seat as a part of a pressure-reducing valve
• Provide technical specifications showing its function
• Check if the product is eligible for any duty relief programs for semiconductor manufacturing
Related Products under Tariff item 8481.90.00
Alumina Ceramic Ball Valve for Wafer Polishing Slurry
A high-wear alumina ceramic ball valve, hand-operated, for precise slurry flow control in wafer polishers achieving critical surface flatness for fabrication. It is classified under tariff item 8481.90.00 as a ceramic 'other materials' part for semiconductor equipment.
Aluminum Butterfly Valve Body
A lightweight aluminum cast body for butterfly valves in HVAC and low-pressure systems. It accommodates the rotating disc for flow regulation in ductwork, and is classified as a valve part under tariff item 8481.90.00.
Brass Ball Valve Body
A machined brass body for ball valves in water and gas distribution systems. It serves as the core housing for the ball and stem assembly, and is classified as a valve part under tariff item 8481.90.00.
Brass Gate Valve Stem
A threaded brass stem with a handwheel attachment point, designed to operate rising gate valves in water and gas pipelines. This component moves the gate disc to regulate flow, and is classified as a part of valves under tariff item 8481.90.00.
Brass Gate Valve Stem of Copper Alloy
A replaceable copper alloy stem for hand-operated brass gate valves used in boiler shells and pressure vessels. This essential operating part transmits motion from the handwheel to the gate disc, regulating flow. It falls under tariff item 8481.90.00 as a part of valves of heading 84.81.
Bronze Plug Valve Body
A leaded bronze body for lubricated plug valves in oilfield applications. It provides a cylindrical plug housing for quarter-turn operation, and is classified as a valve part under tariff item 8481.90.00.