Zero-Pressure Differential Solenoid Valve
Direct-acting solenoid valve operating at zero differential pressure for precise low-flow control. Functions without line pressure assistance, under HTS 8481.80.90.05. Used in laboratory gas mixing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If high purity semiconductor gas service
Gas solenoids for wafer fabs track under statistical note provisions.
If integrated into gas chromatograph instruments
Analytical instrument valves classify in Chapter 90.
If for semiconductor wafer cleaning equipment
Process solenoids in chip manufacturing machines classify separately.
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Import Tips & Compliance
• Specify minimum cracking pressure (0 psi) in technical specs
• Cleanroom packaging required for semiconductor/lab applications
• Leak rate specifications (<10^-6 scc/sec) mandatory for validation
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