Thermostatic Mixing Valve
A valve that mixes hot and cold water to maintain a constant output temperature, using a thermostatic actuator for safety in plumbing systems. Classified under HTS 8481.80.9045 for its thermostatic control in pipe appliances.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for oil/gas pipelines
Pipeline-specific valves have dedicated provisions separate from general thermostatic types.
If pump-integrated components
Valves integral to pumps are classified as pump parts under Chapter 84 pumps heading.
If sold as measuring regulator
If emphasized for measurement over flow control, it may fall under measuring instruments.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide test reports confirming mixing accuracy within 3°F to comply with plumbing codes
• Declare as complete appliance, not parts, with assembly instructions for proper valuation
• Avoid pitfalls by specifying end-use in residential plumbing vs industrial to prevent reclassification
Related Products under HTS 8481.80.90.45
Greenhouse Thermostatic Valve
Valve for hydronic heating in greenhouses, thermostatic actuator maintains growing zone temperatures via pipe control. Fits HTS 8481.80.9045 as thermostatically controlled agricultural pipe appliance.
Domestic Hot Water Thermostatic Valve
Valve for controlling hot water circulation in home systems, with thermostatic actuator maintaining optimal temperatures in tanks and pipes. HTS 8481.80.9045 applies to its thermostatically controlled appliance design.
Solar Thermal Thermostatic Valve
Valve in solar hot water systems with thermostatic actuator prioritizing solar loop circulation based on temperature differentials. Classified HTS 8481.80.9045 for tank/pipe thermostatic appliances.
District Heating Thermostatic Valve
High-capacity valve for district heating substations, using thermostatic actuator for heat exchanger flow control. HTS 8481.80.9045 for large-scale pipe appliances with thermostats.
Thermostatic Radiator Valve
A valve designed for controlling hot water flow in hydronic heating systems using a thermostatic actuator that adjusts based on room temperature. It falls under HTS 8481.80.9045 due to its thermostatic actuator mechanism for precise temperature regulation in pipes and radiators.
Thermostatic Diverter Valve
Valve that diverts flow between circuits based on thermostatic actuator sensing, used in dual heating systems. Under HTS 8481.80.9045 for its thermostatic pipe switching appliance function.