Of hand operated or check appliances
Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves. > Parts > Of hand operated or check appliances
Duty Rate (from China)
Products classified under Tariff item 8481.90.00.10
Alumina Ceramic Ball Valve for Wafer Polishing Slurry
A high-wear alumina ceramic ball valve, hand-operated, for precise slurry flow control in wafer polishers achieving critical surface flatness for fabrication. It is classified under tariff item 8481.90.00 as a ceramic 'other materials' part for semiconductor equipment.
8481.90.00Aluminum Butterfly Valve Body
A lightweight aluminum cast body for butterfly valves in HVAC and low-pressure systems. It accommodates the rotating disc for flow regulation in ductwork, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Brass Ball Valve Body
A machined brass body for ball valves in water and gas distribution systems. It serves as the core housing for the ball and stem assembly, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Brass Gate Valve Stem
A threaded brass stem with a handwheel attachment point, designed to operate rising gate valves in water and gas pipelines. This component moves the gate disc to regulate flow, and is classified as a part of valves under tariff item 8481.90.00.
8481.90.00Brass Gate Valve Stem of Copper Alloy
A replaceable copper alloy stem for hand-operated brass gate valves used in boiler shells and pressure vessels. This essential operating part transmits motion from the handwheel to the gate disc, regulating flow. It falls under tariff item 8481.90.00 as a part of valves of heading 84.81.
8481.90.00Bronze Plug Valve Body
A leaded bronze body for lubricated plug valves in oilfield applications. It provides a cylindrical plug housing for quarter-turn operation, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Ceramic Check Valve for Wafer Grinding Coolant Lines
A hand-operated ceramic check valve preventing backflow in coolant systems for wafer grinders and lappers in semiconductor preparation. Tariff item 8481.90.00 covers ceramic as 'other materials' for check valve parts in precise applications.
8481.90.00Copper Ball Valve for Water Lines
A hand-operated copper ball valve used to control water flow in residential plumbing pipes and tanks. It features a spherical disc to block or allow flow, and is classified under tariff item 8481.90.00 as a part of copper for hand-operated valves.
8481.90.00Copper Butterfly Valve Shaft
A rotary shaft for hand-lever operated copper butterfly valves used in large tanks and ducts. This critical operating component transmits torque from the lever to the disc, enabling flow regulation. It is classified under tariff item 8481.90.00 as a part of valves of heading 84.81.
8481.90.00Copper Check Valve for Irrigation Systems
A copper check valve that prevents backflow in irrigation pipes and tanks, operating automatically via pressure differential. As a part of a check valve, it is classified under tariff item 8481.90.00. The copper construction makes it durable for water applications.
8481.90.00Copper Foot Valve Screen Assembly
A strainer screen part for copper foot valves at tank bottoms in well systems, hand-serviceable. It is classified under tariff item 8481.90.00 as a copper check/hand part.
8481.90.00Copper Needle Valve Plunger
A precision plunger for fine-flow control in hand-operated copper needle valves used in instrumentation tanks. This part moves within the valve body to regulate flow precisely. It is classified under tariff item 8481.90.00 as a part of valves of heading 84.81.
8481.90.00Copper Quarter-Turn Handle for Stop Valves
A hand-operated quarter-turn copper handle for shut-off stop valves in water tanks and pipes. This essential control part allows users to open or close the valve. It is classified under tariff item 8481.90.00 as a part of valves of heading 84.81.
8481.90.00Copper Swing Check Valve Disc
The swinging disc component of copper check valves for preventing reverse flow in pipeline tanks. This part pivots to allow flow in one direction and closes to block backflow. It is classified under tariff item 8481.90.00 as a part of check valves.
8481.90.00Cryogenic LNG Valve Packing Gland
A PTFE and graphite composite packing gland used in cryogenic valves handling LNG at -196°C in tanker and storage systems. It compresses sealing rings around the stem to prevent leaks, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Forged Copper Globe Valve Bonnet
A pressure-containing bonnet for hand-operated forged copper globe valves in steam pipes. This part houses the valve stem and provides a seal. It is classified under tariff item 8481.90.00 as a part of valves of heading 84.81.
8481.90.00Hastelloy Check Valve for Crystal Grinder Coolant
A corrosion-resistant Hastelloy hand-operated check valve for lapping fluid systems in crystal grinders preparing semiconductor wafers to exact diameters. Tariff item 8481.90.00 includes nickel alloys as 'other materials' for check valve parts.
8481.90.00Industrial Butterfly Valve Disc
A stainless steel disc with shaft holes for quarter-turn butterfly valves used in HVAC and chemical processing pipelines. It provides flow control through rotation within the pipe body, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Iron Gate Valve Body for Crystal Grinder Gas Supply
A steel gate valve body part for hand-operated control of process gases in crystal grinders that shape semiconductor boules to wafer diameters. This part is essential for gas flow regulation. It is classified under tariff item 8481.90.00 as a part of valves.
8481.90.00Iron Pressure Reducing Valve Seat for Czochralski Pullers
A steel seat insert for hand-operated pressure-reducing valves maintaining stable argon pressure in Czochralski crystal pullers for silicon wafers. This part ensures a proper seal. It is classified under tariff item 8481.90.00 as a part of valves.
8481.90.00Lead-Free Copper Angle Stop Valve Cartridge
A replaceable cartridge insert for hand-operated copper angle stop valves on water supply tanks. This part contains the sealing and flow-control elements. It is classified under tariff item 8481.90.00 as a part of valves of heading 84.81.
8481.90.00Monel Gate Valve for Semiconductor Gas Lines
A hand-operated Monel valve for ultra-pure gas delivery in wafer manufacturing cleanrooms, including crystal growth setups. Tariff item 8481.90.00 covers Monel (nickel-copper) as 'other materials' in hand-operated appliances.
8481.90.00PFA Lined Gate Valve for Wafer Slicing Saw Coolant
A hand-operated gate valve with perfluoroalkoxy (PFA) liner for abrasive slurry control in wafer slicing saws from semiconductor boules. It is classified under tariff item 8481.90.00 for plastic-lined 'other materials' parts in wafer preparation.
8481.90.00Pneumatic Actuator Valve Diaphragm
A reinforced rubber diaphragm for pneumatic control valves that flexes to position the valve plug under air pressure. Used in process industries for throttling flow in pipelines, it is classified as a valve part under tariff item 8481.90.00.
8481.90.00Pressure Reducing Valve Spring
A high-tensile alloy steel compression spring that maintains set pressure in diaphragm-operated reducing valves for water systems. Calibrated for specific spring rates, it is classified as a valve part under tariff item 8481.90.00.
8481.90.00PTFE Diaphragm Valve for Crystal Grower Fluid Control
A hand-operated diaphragm valve with PTFE (Teflon) body for corrosive chemical handling in Czochralski crystal pullers during silicon boule growth. It is classified under tariff item 8481.90.00 as a part of other materials (plastics) for semiconductor equipment.
8481.90.00Semiconductor Wafer Fab Check Valve Poppet
A ceramic poppet for high-purity check valves preventing backflow in gas lines of semiconductor wafer processing equipment. Precision-ground for ultra-clean environments, it is classified as a valve part under tariff item 8481.90.00.
8481.90.00Solenoid Valve Armature Assembly
A magnetic stainless steel armature with attached plunger for electrically actuated solenoid valves in automation systems. It moves under coil energization to open or close ports, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Stainless Steel Ball Valve for Semiconductor Wafer Processing
A hand-operated stainless steel ball valve used in high-purity gas and liquid lines for semiconductor wafer manufacturing equipment, such as crystal growers. It falls under tariff item 8481.90.00 as a part of other materials for semiconductor applications.
8481.90.00Stainless Steel Ball Valve Replacement Seat
A precision-machined stainless steel seat designed as a replaceable part for industrial ball valves used in piping systems. It ensures a tight seal between the ball and body under high pressure, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Stainless Steel Check Valve for Wafer Slicing Saw Coolant Lines
A hand-operated check valve of stainless steel preventing backflow in coolant systems of wafer slicing saws for semiconductor boule processing. This part is critical for maintaining system integrity. It is classified under tariff item 8481.90.00 as a part of valves.
8481.90.00Stainless Steel Needle Valve for Float Zone Crystal Puller
A precision steel needle valve part for fine flow control of argon gas in float zone crystal pullers producing monocrystalline semiconductor material. This part regulates gas flow with high accuracy. It is classified under tariff item 8481.90.00 as a part of valves.
8481.90.00Stainless Steel Plug Valve for Crystal Grinder Vacuum Lines
A steel plug component for hand-operated valves isolating vacuum in crystal grinders shaping semiconductor boule flats for conductivity indication. This part ensures a tight seal. It is classified under tariff item 8481.90.00 as a part of valves.
8481.90.00Steel Ball Valve for Semiconductor Wafer Processing
A hand-operated steel ball valve designed for controlling gas flow in crystal growers and pullers used in semiconductor boule production. It falls under tariff item 8481.90.00 as a part of iron or steel for hand-operated valves.
8481.90.00Steel Butterfly Valve Disc for Wafer Grinder Coolant
A replacement steel disc for hand-operated butterfly valves controlling coolant in wafer grinders processing semiconductor crystal boules. It is classified under tariff item 8481.90.00 as a steel part of hand-operated valve appliances.
8481.90.00Steel Check Valve Spring for Wafer Polisher Slurry Lines
A high-tensile steel spring component in hand-operated check valves for unidirectional slurry flow in semiconductor wafer polishers. It is classified under tariff item 8481.90.00 as a steel part of check appliances in wafer preparation equipment.
8481.90.00Steel Diaphragm Valve for Wafer Lapping Slurry Control
A hand-operated steel diaphragm valve component regulating abrasive slurry flow in wafer lappers and polishers for semiconductor surface flatness. It is classified under tariff item 8481.90.00 as a steel part of hand-operated valves in wafer preparation.
8481.90.00Steel Thermostatic Valve Actuator for Wafer Slicer Cooling
A hand-operated steel actuator housing for thermostatically controlled valves regulating coolant temperature in wafer slicing saws. Even though thermostat-controlled, parts of hand-operated appliances fall under tariff item 8481.90.00.
8481.90.00Thermostatic Radiator Valve Head
A plastic and metal thermostatic sensor head that automatically adjusts flow in hydronic heating systems based on room temperature. It attaches to radiator valve bodies, and is classified as a valve part under tariff item 8481.90.00.
8481.90.00Titanium Needle Valve for Float Zone Crystal Pullers
A precision hand-operated titanium needle valve for inert gas control in float zone crystal growers producing monocrystalline semiconductor boules. It falls under tariff item 8481.90.00 as titanium qualifies as 'other materials' for semiconductor equipment.