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Automatic regulating or controlling instruments and apparatus. > Other instruments and apparatus: > Other
Duty Rate (from China)
Products classified under Tariff item 9032.8
Electro-Pneumatic Proportional Pressure Regulator
> This electro-pneumatic proportional pressure regulator converts an electrical control signal into a proportional pneumatic pressure output. It continuously measures the downstream pressure and adjusts the internal valve to maintain the desired setpoint, making it an automatic regulating instrument. Because its final control element operates pneumatically, it is classified as a pneumatic instrument under tariff item 9032.81.00.
9032.81.00Hydraulic Accumulator Charging Regulator
This hydraulic accumulator charging regulator automatically controls charging rates to hydraulic accumulators based on bladder pressure feedback. As a hydraulic automatic regulating instrument, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Cylinder Position Regulator
> This hydraulic cylinder position regulator automatically maintains precise piston positions in industrial hydraulic cylinders by continuously sensing the position and adjusting the hydraulic flow to correct any deviation. It stabilizes the position against disturbances, making it an automatic regulating instrument. As a hydraulic device, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Flow Compensator Regulator
This hydraulic flow compensator regulator automatically compensates for flow variations to ensure consistent actuator speeds in hydraulic systems. Its hydraulic automatic regulation places it under tariff item 9032.81.00.
9032.81.00Hydraulic Flow Control Meter
> This hydraulic flow control meter automatically measures and regulates the flow rate of hydraulic fluid in industrial pipelines. It uses sensors to detect the actual flow and adjusts a valve to maintain the desired rate against variations, functioning as an automatic regulating instrument. Since it operates hydraulically, it is classified under tariff item 9032.81.00.
9032.81.00Hydraulic Fluid Velocity Regulator
> This hydraulic fluid velocity regulator automatically controls the velocity of hydraulic fluid in pipelines to maintain consistent process speeds. It uses flow sensors and actuators to continuously measure the velocity and adjust the flow, stabilizing against disturbances. As a hydraulic automatic regulating instrument, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Level Controller
> This hydraulic level controller automatically controls the level of hydraulic fluid in industrial reservoirs by using sensors to measure the actual level and adjusting the flow to maintain the desired setpoint. It continuously corrects deviations, making it an automatic regulating instrument. As a hydraulic device, it is classified under tariff item 9032.81.00.
9032.81.00Hydraulic Level Control Valve for Hydraulic Reservoirs
> This hydraulic level control valve automatically regulates the fluid level in hydraulic reservoirs by sensing the actual level and adjusting the flow of hydraulic fluid into or out of the reservoir. It continuously measures the level and corrects deviations from the setpoint, making it an automatic regulating instrument. Because it operates hydraulically, it is classified under tariff item 9032.81.00.
9032.81.00Hydraulic Level Regulator for Fluid Tanks
This hydraulic level regulator automatically controls liquid levels in hydraulic tanks by measuring actual levels and adjusting inlet/outlet flows to stabilize at desired setpoints. It qualifies as a hydraulic automatic regulating instrument under tariff item 9032.81.00.
9032.81.00Hydraulic Load Force Controller
> This hydraulic load force controller automatically regulates the force output in hydraulic presses and lifts by using pressure feedback to stabilize against load variations. It continuously measures the force and adjusts the hydraulic pressure to maintain the desired value, making it an automatic regulating instrument. As a hydraulic device, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Pressure Regulator for Industrial Machinery
This hydraulic pressure regulator automatically maintains constant pressure in hydraulic systems by continuously measuring and adjusting fluid flow in response to pressure variations. It falls under tariff item 9032.81.00 as a hydraulic automatic regulating instrument.
9032.81.00Hydraulic Pressure Regulator Valve
> This hydraulic pressure regulator automatically maintains a constant pressure in industrial hydraulic systems by continuously measuring the fluid pressure and adjusting the flow to keep it at the desired setpoint. It stabilizes the pressure against disturbances, qualifying as an automatic regulating instrument. As a hydraulic device, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Process Temperature Regulator
> This hydraulic process temperature regulator automatically controls the temperature of hydraulic oil in industrial processes by regulating the flow of coolant or heater output based on real-time temperature measurements. It continuously corrects deviations from the setpoint, making it an automatic regulating instrument. As a hydraulic device, it is classified under tariff item 9032.81.00.
9032.81.00Hydraulic Proportional Pressure Control Unit
> This hydraulic proportional pressure control unit automatically varies hydraulic pressure in response to electrical signals for process accuracy in industrial applications. It continuously measures the output pressure and adjusts the valve to maintain the desired setpoint, making it an automatic regulating instrument. Since it operates hydraulically, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Proportional Valve Controller
This hydraulic proportional valve controller automatically adjusts hydraulic proportional valves based on real-time pressure/flow feedback for precise system control. As a hydraulic automatic regulating instrument, it falls under tariff item 9032.81.00.
9032.81.00Hydraulic Relief Valve Automatic Controller
This is a hydraulic relief valve controller that automatically adjusts the setpoint of a relief valve based on measured system demand. It is a self-contained automatic regulating instrument for hydraulic pressure, falling squarely under tariff item 9032.81.00 for hydraulic automatic regulating apparatus.
9032.81.00Hydraulic Sequence Valve Controller
> This hydraulic sequence valve controller automatically sequences the operation of hydraulic valves by monitoring pressure and flow in the system. It ensures that machine cycles occur in the correct order by continuously measuring process variables and adjusting valve positions. This makes it an automatic regulating instrument for hydraulic systems, classified under tariff item 9032.81.00.
9032.81.00Hydraulic Servo Pressure Controller
This high-precision servo controller for hydraulic actuators provides closed-loop pressure regulation. It is an automatic regulating instrument for hydraulic pressure, meeting the definition of heading 90.32 and classified under tariff item 9032.81.00.
9032.81.00Hydraulic Servo Valve Controller
> This hydraulic servo valve controller automatically regulates the position and force of hydraulic servo valves in CNC machines through continuous feedback. It measures the actual output and adjusts the valve to maintain the desired setpoint, stabilizing against disturbances. As a hydraulic automatic regulating instrument, it is classified under tariff item 9032.81.00.
9032.81.00Pneumatic Air Flow Controller
> This pneumatic air flow controller automatically regulates the airflow rate in compressed air systems by sensing the actual flow and adjusting a valve to maintain the desired setpoint. It continuously measures and corrects deviations, functioning as an automatic regulating instrument. Since it operates pneumatically, it is classified under tariff item 9032.81.00.
9032.81.00Pneumatic Air Quality Regulator for Cleanrooms
This pneumatic air quality regulator monitors particulate levels and pressure differentials in cleanrooms, automatically adjusting ventilation to maintain set conditions. It operates on pneumatic control principles, making it an automatic regulating instrument for non-electrical variables under tariff item 9032.81.00.
9032.81.00Pneumatic Back Pressure Regulator
> This pneumatic back pressure regulator maintains a constant upstream pressure by automatically throttling the flow based on real-time pressure measurements. It continuously senses the pressure and adjusts the valve opening to stabilize against load changes, making it an automatic regulating instrument. As a pneumatic device, it falls under tariff item 9032.81.00.
9032.81.00Pneumatic Backpressure Regulator
This pneumatic backpressure regulator automatically maintains upstream pressure by throttling flow based on continuous sensing. It is an automatic regulating instrument for pneumatic pressure, classified under tariff item 9032.81.00 for pneumatic automatic controlling apparatus.
9032.81.00Pneumatic Batch Mixing Controller
This pneumatic batch mixing controller automatically sequences valves and adjusts mixing ratios based on feedback, ensuring consistent batch production. Its pneumatic operation places it under tariff item 9032.81.00 as an automatic regulating instrument for industrial processes.
9032.81.00Pneumatic Cascade Pressure Regulator
This multi-stage pneumatic cascade regulator automatically reduces pressure from high to low levels in pneumatic systems. It is an automatic regulating instrument for pneumatic pressure, classified under tariff item 9032.81.00.
9032.81.00Pneumatic Cylinder Position Controller
This pneumatic cylinder position controller modulates air pressure to precisely position cylinders in automation lines, using continuous feedback to maintain setpoints. As a pneumatic automatic regulating instrument, it falls under tariff item 9032.81.00.
9032.81.00Pneumatic Cylinder Position Regulator
This pneumatic cylinder position regulator automatically controls cylinder positions by adjusting air supply based on linear feedback sensors. It is an automatic regulating instrument for pneumatic position control, classified under tariff item 9032.81.00.
9032.81.00Pneumatic Differential Pressure Regulator
This pneumatic differential pressure regulator maintains a constant pressure difference across filters or orifices by automatic flow modulation. It is an automatic regulating instrument for pneumatic differential pressure, classified under tariff item 9032.81.00.
9032.81.00Pneumatic Flow Control Valve for Air Systems
This automatic pneumatic flow control valve regulates air flow rates in pneumatic systems by sensing and adjusting to maintain set parameters against disturbances. It is an automatic regulating instrument for pneumatic flow, classified under tariff item 9032.81.00.
9032.81.00Pneumatic Flow Control Valve for Process Automation
This pneumatic flow control valve automatically regulates gas or air flow rates in pipelines by continuously measuring and adjusting the flow. Its pneumatic sensing and actuation make it an automatic regulating instrument under tariff item 9032.81.00.
9032.81.00Pneumatic Level Regulator for Process Tanks
This pneumatic level regulator controls liquid levels in industrial tanks by using pneumatic pressure feedback to actuate valves and maintain desired levels. It qualifies as an automatic regulating instrument under tariff item 9032.81.00 for hydraulic or pneumatic control.
9032.81.00Pneumatic pH Control System for Chemical Processing
This pneumatic pH control system automatically adjusts chemical process pH using pneumatic valve control based on continuous sensor feedback in industrial reactors. As a pneumatic automatic regulating instrument, it falls under tariff item 9032.81.00.
9032.81.00Pneumatic Pressure Regulator for Industrial Processes
This pneumatic pressure regulator automatically maintains air pressure at a set value in industrial pneumatic systems by sensing and adjusting flow. Its pneumatic operation makes it an automatic regulating instrument under tariff item 9032.81.00.
9032.81.00Pneumatic Process Speed Controller for Conveyor Lines
This pneumatic process speed controller regulates conveyor belt speeds in industrial lines via pneumatic actuators that adjust based on continuous speed measurement feedback. It qualifies as a pneumatic automatic regulating instrument under tariff item 9032.81.00.
9032.81.00Pneumatic Temperature Controller for Air Lines
> This pneumatic temperature controller automatically regulates the temperature of air in pneumatic lines by adjusting the flow of a heating or cooling medium based on temperature feedback. It continuously measures the air temperature and corrects deviations from the setpoint, making it an automatic regulating instrument. Since it operates pneumatically, it is classified under tariff item 9032.81.00.
9032.81.00Pneumatic Temperature Controller for Air Systems
This pneumatic temperature controller uses pneumatic signals to automatically control and stabilize temperature in industrial air handling processes through sensing and valve actuation. It falls under tariff item 9032.81.00 as a pneumatic automatic regulating instrument.
9032.81.00Pneumatic Vacuum Regulator
This pneumatic vacuum regulator automatically maintains consistent vacuum levels in pneumatic pickup systems. It is an automatic regulating instrument for pneumatic vacuum pressure, classified under tariff item 9032.81.00.
9032.81.00Pneumatic Vacuum Regulator for Industrial Pick-and-Place
This pneumatic vacuum regulator maintains consistent vacuum pressure in robotic pick-and-place systems for manufacturing through automatic pneumatic regulation. It qualifies as a pneumatic automatic regulating instrument under tariff item 9032.81.00.
9032.89.0012V Automotive Voltage Regulator
An automatic voltage regulator designed for 12V vehicle electrical systems, maintaining stable output voltage for alternators and batteries. It continuously monitors and adjusts voltage in real-time to protect sensitive electronic components from fluctuations.
9032.89.0012V LED Lighting Voltage Regulator
An automatic constant voltage regulator for 12V LED lighting systems in vehicles and boats, preventing flicker from voltage drops. It maintains precise 12V DC output regardless of input variation, ensuring stable lighting performance.
9032.89.0012V Marine Engine Voltage Controller
An automatic voltage controller for 12V boat engine electrical systems that regulates alternator output for batteries and accessories. It features overvoltage protection and low battery detection, ensuring reliable power management in marine environments.
9032.89.0012V RV Voltage Stabilizer
An automatic voltage stabilizer for 12V recreational vehicle systems that protects appliances from shore power fluctuations and generator instability. It maintains a constant 12-14V output range, ensuring safe operation of RV electronics.
9032.89.0012V Winch Voltage Regulator
An automatic voltage regulator for 12V electric winches used in trucks and ATVs, preventing motor burnout from voltage spikes. It regulates power delivery during heavy loads, ensuring consistent performance and longevity.
9032.89.0024V Electric Scooter Voltage Monitor Regulator
A combined voltage monitor and automatic regulator for 24V electric scooter battery management systems. It protects against overvoltage and undervoltage while optimizing BMS performance, ensuring safe and efficient operation.
9032.89.0024V Forklift Battery Voltage Stabilizer
An automatic voltage stabilizer for 24V industrial forklift batteries that regulates output to prevent over or under voltage conditions. It automatically adjusts to maintain consistent power delivery to motors and controls, enhancing operational reliability.
9032.89.0024V Solar Panel Voltage Regulator
An MPPT automatic voltage regulator for 24V solar panel arrays that maximizes power transfer while preventing battery overcharge. It continuously monitors panel voltage and current and adjusts output for optimal performance.
9032.89.006V Golf Cart Voltage Regulator
An automatic voltage regulator for 6V golf cart battery systems that maintains charger output and prevents deep discharge. It monitors battery voltage and controls charging cycles to extend battery life.
9032.89.006V Motorcycle Voltage Regulator Rectifier
A combined voltage regulator and rectifier for 6V motorcycle lighting and ignition systems, automatically maintaining battery charge voltage. It prevents overcharging while ensuring stable DC output from AC generators.
9032.89.00Air Conditioning Economizer Controller
A controller that monitors outdoor air conditions to automatically enable free cooling economizers in rooftop HVAC units when conditions permit, reducing mechanical cooling load. It is an automatic regulating instrument under tariff item 9032.89.00.
9032.89.00Automatic Pressure Regulators for Pneumatic Systems
Electro-pneumatic pressure regulators that automatically maintain constant output pressure in pneumatic systems despite input fluctuations. Using feedback loops, these instruments continuously measure and adjust gas pressure, qualifying as automatic regulators for gas pressure under tariff item 9032.89.00.
9032.89.00Automatic Voltage Stabilizer for Home Appliances
This device automatically regulates input voltage fluctuations to provide stable output for household appliances like refrigerators and TVs. It falls under tariff item 9032.89.00 as an automatic voltage regulator designed for residential use.
9032.89.00AVR Automatic Voltage Regulator for Generators
An electronic module that maintains constant generator output voltage despite varying loads or speeds. It is classified under tariff item 9032.89.00 for its automatic voltage-current regulation through sensing and feedback circuits.
9032.89.00Carrier 33CS UltraTech HVAC Control System
A full-featured control system for Carrier air handlers and furnaces that automates temperature and fan speed based on sensor feedback. It qualifies as a complete HVAC regulating instrument under tariff item 9032.89.00 for automatic environmental control.
9032.89.00Cascade Pressure Controllers for Gas Systems
Multi-stage pressure controllers that maintain sequential pressure setpoints in compressed gas cascade filling systems automatically. These instruments regulate gas pressure through feedback mechanisms, making them automatic regulators for gas pressure under tariff item 9032.89.00.
9032.89.00Chiller Water Temperature Controller
A controller that automatically regulates chilled water temperature in commercial HVAC chiller plants by modulating valves and pumps based on supply/return temperature differentials. This automatic regulating instrument falls under tariff item 9032.89.00.
9032.89.00Danfoss MCX Refrigeration Controller System
An advanced complete system for commercial refrigeration units that controls superheat, capacity, and defrost cycles automatically. It qualifies as a refrigeration control instrument under tariff item 9032.89.00 for automatic regulation of refrigeration parameters.
9032.89.00DO Control Systems for Wastewater Treatment
Dissolved oxygen controllers that automatically adjust aeration blowers in wastewater treatment plants to maintain optimal DO levels via probe feedback. These instruments continuously measure and regulate oxygen levels, qualifying as automatic process regulators under tariff item 9032.89.00.
9032.89.00Emerson Climate Technologies Scroll Compressor Controller
A complete electronic control system for refrigeration scroll compressors, automatically regulating pressure and temperature. It falls under tariff item 9032.89.00 as an automatic regulating or controlling instrument for non-electrical quantities, designed to maintain desired values despite disturbances.
9032.89.00Flow Rate Automatic Controllers for Pipelines
Instruments that automatically adjust valves to maintain constant flow rates in liquid pipelines using flowmeter feedback and PID algorithms. These automatic regulators for liquid flow variables fall under tariff item 9032.89.00 as they continuously measure and correct flow.
9032.89.00Goodman ASPKT25 Air Source Heat Pump Controller
A full controller kit for air source heat pumps, automating defrost, capacity, and temperature regulation. This is an automatic regulating instrument for temperature, falling under tariff item 9032.89.00 as an 'other' instrument in the subheading.