Cryogenic Steel Butterfly Valve 4-inch Extended Bonnet from Mexico
Steel butterfly valve with extended bonnet for cryogenic service in liquid nitrogen lines of semiconductor wafer inspection freeze systems. Hand-wheel operation maintains seal integrity at extreme low temperatures. Classified under HTS 8481.80.3075 for steel hand-operated butterfly valves.
Duty Rate — Mexico → United States
15.6%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include cryogenic test data (-196°C) and material Charpy impact results
• Specify bonnet extension dimensions for pressure boundary verification
• Declare low-emission stem packing design