Flow Rate Automatic Controllers for Pipelines from Mexico
Instruments that automatically adjust valves to maintain constant flow rates in liquid pipelines using flowmeter feedback and PID algorithms. Falls under HTS 9032.89.60 as automatic regulators for liquid flow variables in industrial fluid systems. Stabilizes against pressure disturbances.
Duty Rate — Mexico → United States
11.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include flowmeter calibration certificates; verify NACE material compatibility for corrosive fluids; ensure proper hazardous area classifications