Stainless Steel Orifice Flange

Stainless steel orifice flange pair for flow measurement in petrochemical plants, with precision machining for meter taps. Classified under HTS 7307.21.5000, other stainless flanges. Exceeds wire cross-section.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.6%+35.0%40.6%
🇲🇽Mexico5.6%+10.0%15.6%
🇨🇦Canada5.6%+10.0%15.6%
🇩🇪Germany5.6%+10.0%15.6%
🇯🇵Japan5.6%+10.0%15.6%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9026.10.60.00Lower: 17.5% vs 40.6%

If with integrated flow instruments

Instrument-integrated flanges classify under measuring appliances.

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

• Pair documentation for D-side and R-side flanges to match sets

• ASME MFC-3 compliance for orifice-specific imports

Related Products under HTS 7307.21.50.00

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 HTS 7307.21.5000 as a stainless steel flange, other than socket or threaded types. The 'wire' definition does not apply as this is a cast or forged fitting.

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 HTS 7307.21.5000 for other stainless steel flanges. Exceeds wire dimensions, qualifying as a pipe fitting.

Stainless Steel Blind Flange 150# Class

A 150# class blind flange of stainless steel used to seal pipe ends in oil and gas pipelines. It prevents flow and allows future access, classified under HTS 7307.21.5000 as other stainless steel flanges. Not a wire product due to its large cross-section.

Stainless Steel Long Weld Neck Flange

Extended hub long weld neck flange in stainless steel for high-temperature steam lines in power plants. Provides reinforcement for high-stress applications, under HTS 7307.21.5000 as other stainless flanges. Forged construction exceeds wire specs.

Super Duplex SAF2507 Flange

Super duplex SAF2507 stainless flange for subsea oil recovery systems, with exceptional strength-to-weight ratio. Fits HTS 7307.21.5000 as other stainless steel flanges. Forged, non-wire product.

321 Stainless Steel Flange

321 stabilized stainless steel flange for high-temperature exhaust systems in aerospace. Resists intergranular corrosion, HTS 7307.21.5000 other flanges.