Stainless Steel Orifice Flange
A stainless steel orifice flange pair, precision-machined for flow measurement in petrochemical plants. These flanges include meter taps for differential pressure measurement, and their stainless steel construction ensures durability. They are classified under tariff item 7307.21.00 as stainless steel flanges.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the orifice flanges are of alloy steel other than stainless
This item covers flanges of other alloy steel, which may apply if the material is not stainless.
If the orifice flanges are of iron or non-alloy steel
Flanges of iron or non-alloy steel are classified under this item, not stainless steel.
If the flanges are part of a complete flow measuring instrument
Parts of instruments for measuring or checking flow may be classified under this item.
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
• For flow measurement applications, ensure the orifice flanges meet AGA or ISO standards, as CBSA may require compliance certificates
• Provide detailed drawings of the meter taps and precision machining specifications
• Confirm that the flanges are not part of a complete flow meter, which would be classified under a different heading
Related Products under Tariff item 7307.21.00
17-4PH Stainless Flange
A 17-4PH precipitation hardening stainless flange for turbine housings, offering high strength. It is classified under tariff item 7307.21.00 as a stainless steel flange, not further worked after forging.
304 Stainless Steel Weld Neck Flange
A weld neck flange made from 304 stainless steel, designed for high-pressure piping systems in chemical processing plants. It connects pipes securely via welding and is classified under tariff item 7307.21.00 as a stainless steel flange.
316L Stainless Steel Slip-On Flange
A slip-on flange crafted from 316L stainless steel, ideal for moderate-pressure applications in food and beverage processing. It slips over the pipe end and is fillet welded, fitting tariff item 7307.21.00 for other stainless steel flanges.
321 Stainless Steel Flange
A 321 stabilized stainless steel flange for high-temperature exhaust systems in aerospace, resisting intergranular corrosion. It is classified under tariff item 7307.21.00 as a stainless steel flange.
AL6XN Stainless Flange
An AL6XN super austenitic stainless flange for chemical reactors, offering superior corrosion resistance. It is classified under tariff item 7307.21.00 as a stainless steel flange.
Duplex 2205 Stainless Steel Flange
A duplex 2205 stainless steel flange for offshore oil platforms, offering superior corrosion resistance in harsh marine environments. Used in weld neck configurations, it fits tariff item 7307.21.00 for other stainless steel flanges.