Proportional Solenoid Control Valve for Semiconductor Wafer Etching from Germany
This electro-hydraulic proportional control valve precisely regulates gas flow in semiconductor wafer etching chambers based on electronic signals from a PLC controller. It falls under HTS 8481.80.9020 due to its design for proportional operation via control device signals, optimized for cleanroom environments in chip fabrication. Used in plasma etching tools to maintain exact pressure differentials.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Verify actuator type and signal compatibility documentation to confirm proportional operation classification under 8481.80.9020
• Include cleanroom certification and material compatibility certificates (e.g
• for HF gases) to avoid reclassification as semiconductor-specific machinery