Underbalanced Drilling Pump from Japan
Specialized reciprocating pump maintaining underbalanced pressure during drilling to prevent formation damage. HTS 8413.50.0010 as oil field reciprocating positive displacement pump.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Include reservoir pressure maintenance specifications and gas handling capacity
• Document mist/gas separator integration for underbalanced operations
• Specify flowmeter accuracy for precise pressure control verification