Parts and accessories
Gas, liquid or electricity supply or production meters, including calibrating meters thereof; parts and accessories thereof: > Parts and accessories
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 9028.90.00
Digital Flow Meter Sensor Module
This sensor module is a replacement part for gas and liquid flow meters used in utility billing systems, containing the electronic sensing element that measures flow rates. It falls under HTS 9028.90.00 as a dedicated accessory for calibrating and operating meters in Chapter 90. Designed exclusively for integration into supply meters for accurate volumetric measurement.
Battery Pack for AMR Electricity Meters
Lithium-thionyl chloride battery module powering automatic meter reading (AMR) functions in smart electricity meters during outages. Falls under HTS 9028.90.00 as an accessory principally for electricity supply meters. Provides 10+ years of backup for data retention.
Valve Control Module for Smart Water Meters
Electronic actuator module that remotely controls shutoff valves in intelligent water supply meters for leak detection. Classified HTS 9028.90.00 as a part principally for liquid supply meters. Integrates with AMI networks for demand management.
Pressure Sensor Transducer for Gas Meters
Solid-state pressure transducer measuring differential pressure in diaphragm gas meters for flow compensation. HTS 9028.90.00 as accessory for gas supply/production meters. Compensates for varying line pressures.
Tamper Detection Switch Assembly
Magnetic reed switch assembly that detects meter cover removal or magnetic tampering in utility meters. Essential security accessory for electricity/gas/liquid supply meters under HTS 9028.90.00. Triggers remote alarms via AMR.
Temperature Compensation Probe
NTC thermistor probe embedded in gas meter manifolds for automatic volume correction to standard conditions. HTS 9028.90.00 covers such calibrating accessories for gas supply meters. Accuracy ±0.5°C over -20 to 60°C range.
Optical Pulse Generator Disc
Precision encoded disc that generates light pulses proportional to meter register rotation for remote reading. Accessory for electricity and gas meters under HTS 9028.90.00. 1000 pulses/revolution resolution.
Flow Conditioner Insert for Ultrasonic Meters
Perforated tube insert that creates fully developed flow profiles upstream of ultrasonic transducers in liquid/gas meters. HTS 9028.90.00 as meter accessory improving measurement accuracy to ±0.5%. ASME MFC-5M compliant design.
Data Retention Memory Module
EEPROM memory module storing 10-year load profile data in electricity meters, surviving power outages. Dedicated accessory for electricity supply meters under HTS 9028.90.00. 1MB capacity with error correction.
Meter Register Gear Train Assembly
Precision gear train transferring impeller rotation to cyclometer wheels in positive displacement water meters. Mechanical accessory under HTS 9028.90.00. 10 million count life expectancy.
Calibration Test Port Adapter
Quick-connect adapter providing pulse output access for verifying meter accuracy during field testing. Standard accessory for all utility meter types under HTS 9028.90.00. IP67 rated magnetic inductive coupling.
Wireless Antenna Module for AMI Meters
RF antenna specifically tuned for 900MHz AMI communications in smart utility meters. HTS 9028.90.00 as accessory principally for supply meters. 3dBi gain, IP68 sealed.
LCD Display Assembly for Utility Meters
Replacement LCD screen and housing specifically for electricity and gas supply meters, displaying consumption data to end users. Classified under HTS 9028.90.00 as it is a part dedicated to gas/liquid/electricity meter function per Chapter 90 rules. Ensures readability in residential and commercial metering applications.
Magnetic Coupling for Gas Meter Registers
Magnetic drive coupling that transmits rotation from meter impeller to register without seals, used in residential gas flow meters. HTS 9028.90.00 applies as a mechanical accessory essential for gas supply meter operation. Prevents leakage in hermetic metering designs.
Impedance Calibration Adapter for Meter Testing
Precision adapter used to calibrate electrical impedance in electricity supply meters during factory testing. HTS 9028.90.00 covers such calibrating accessories for Chapter 90 meters. Ensures accuracy within 0.1% per ANSI standards.