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Spider Valve Assembly for Pipe Racks

Mousehole spider valves controlling pipe rack access during tripping on drilling rigs. Boring machinery parts under 8431.43.80.90.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+50.0%50%
🇲🇽MexicoFree+25.0%25%
🇨🇦CanadaFree+25.0%25%
🇩🇪GermanyFree+25.0%25%
🇯🇵JapanFree+25.0%25%

Alternative Classifications

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

8481.80.90Lower: 39.5% vs 50%

If other safety valves

Valves not rig-specific classify as appliances.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• API certification for pressure containment

• Rig layout drawings showing mousehole integration