Pneumatic Angle Seat Valve for DI Water Lines
Angle seat valve with pneumatic actuator for deionized (DI) water distribution in wafer cleaning stations post-polishing. Classified HTS 8481.80.9040 for semiconductor process control valves. Self-draining design prevents stagnation.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for high-pressure applications >1000 psi
Pressure rating determines subcategory within other appliances.
If part of complete medical/pharma-grade water systems
Similar purity systems for non-semiconductor use classify differently.
If actuatorless valve bodies
Separate import of components excludes from appliance classification.
Not sure which classification is right?
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Import Tips & Compliance
• Include 18.2 MΩ-cm DI water compatibility cert; specify fail-safe position (normally closed/open); SEMATECH cleaning protocol compliance
Related Products under HTS 8481.80.90.40
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Pneumatic Diaphragm Valve for Gas Delivery in Crystal Pullers
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