Chapter 9028 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 90.28
Calibrating Test Gas Meter
A portable reference meter used to verify the accuracy of installed gas meters. It is explicitly covered by tariff item 9028.10.00 as a calibrating meter for gas supply, ensuring precise measurement for utility testing.
9028.10.00Commercial Rotary Gas Meter
A positive displacement rotary meter for high-volume natural gas in commercial buildings. It falls under tariff item 9028.10.00 as a gas supply meter with calibrating dials for accurate billing, handling pressures up to 5 psi.
9028.10.00Industrial Turbine Gas Meter
A high-pressure turbine meter for natural gas in manufacturing facilities. It is classified under tariff item 9028.10.00 as a gas production meter handling 100-1000 psi flows, with pulse output for SCADA integration.
9028.10.00LP Gas Diaphragm Meter
A meter specifically calibrated for liquefied petroleum gas in rural homes and farms. It falls under tariff item 9028.10.00 as a gas meter, even though it is for LP gas, because the heading covers all gas meters.
9028.10.00Prepaid Smart Gas Meter
A token-operated prepaid meter for pay-as-you-go gas in low-income housing. It is classified under tariff item 9028.10.00 as an electronic gas supply meter with a coin/token interface, preventing utility debt through prepayment validation.
9028.10.00Residential Natural Gas Meter
A diaphragm-type meter designed for measuring natural gas consumption in homes and apartments. It falls under tariff item 9028.10.00 as a gas supply meter for residential use, recording volume usage for billing purposes.
9028.10.00Smart Diaphragm Gas Meter
An electronic diaphragm gas meter with remote reading capabilities for urban gas distribution. It is classified under tariff item 9028.10.00 for its primary function as a gas supply meter in residential networks, with AMI technology.
9028.10.00Ultrasonic Gas Flow Meter
A clamp-on ultrasonic meter for non-intrusive gas flow measurement in pipelines. It is classified under tariff item 9028.10.00 as an advanced gas supply meter using transit-time technology, ideal for custody transfer.
9028.20.00Beverage Filling Line Meter
A turbine flow meter designed for measuring beverage syrup and water in bottling plant filler supply lines. Its sanitary construction and low-shear design protect product quality while providing accurate liquid measurement, qualifying it as a liquid meter under tariff item 9028.20.00.
9028.20.00Brine Flow Meter for Desalination
A high-pressure magnetic flow meter for measuring brine concentrate in reverse osmosis desalination plants. Its Alloy C-276 wetted parts resist chloride corrosion, and it accurately measures liquid flow, classifying it as a liquid meter under tariff item 9028.20.00.
9028.20.00Bulk Fuel Oil Meter
A positive displacement meter for measuring heavy fuel oil delivery in industrial storage terminals. It handles high-viscosity liquids and is skid-mounted for easy installation, making it a liquid meter under tariff item 9028.20.00 for petroleum products.
9028.20.00Calibrating Test Bench Meter
A master meter used for calibrating liquid flow test benches, with traceability to national standards and uncertainty below 0.1%. As a calibrating liquid meter, it falls directly under tariff item 9028.20.00, which includes calibrating meters for liquids.
9028.20.00Chemical Processing Flow Meter
A PTFE-lined magnetic flow meter for corrosive chemical liquids in process industries. It handles a wide pH range and includes grounding rings for stable measurement, qualifying as a liquid meter under tariff item 9028.20.00 for industrial applications.
9028.20.00Commercial Custody Transfer Meter
A Coriolis mass flow meter for liquid custody transfer in refined product pipelines, meeting OIML R117 standards for legal metrology. It serves as a calibrating liquid meter for fiscal measurement, falling under tariff item 9028.20.00.
9028.20.00Cooling Tower Water Meter
A vortex shedding flow meter for measuring cooling tower makeup and blowdown water in HVAC systems. With no moving parts, it suits poor water quality and accurately measures liquid volume, classifying it as a liquid meter under tariff item 9028.20.00.
9028.20.00Digital Water Usage Meter
A battery-operated digital meter for measuring the volume of water flowing through residential plumbing systems. It monitors household water supply and qualifies as a liquid meter under tariff item 9028.20.00.
9028.20.00Fire Hydrant Water Meter
A compound meter for fire service connections that measures both high and low flow rates in hydrants. Its frost-proof design and bypass valve make it suitable for emergency water supply, classifying it as a liquid meter under tariff item 9028.20.00.
9028.20.00Irrigation Water Flow Meter
An electromagnetic flow meter for agricultural irrigation channels, measuring conductive water flow. Its corrosion-resistant design and remote transmitter suit farming applications, making it a liquid meter under tariff item 9028.20.00 for water supply.
9028.20.00Lubrication Oil Circulation Meter
A gear-type positive displacement meter for circulating lube oil in industrial machinery. It handles high pressure and is compatible with filtration systems, qualifying as a liquid meter under tariff item 9028.20.00 for lubrication monitoring.
9028.20.00Mechanical Turbine Water Meter
A multi-jet turbine meter with magnetic drive for accurate cold water measurement in commercial buildings. It features a dry register and pulse output, classifying it as a liquid meter under tariff item 9028.20.00 for water supply metering.
9028.20.00Milk Flow Meter for Dairy Farms
A sanitary electromagnetic meter for measuring raw milk flow during farm bulk tank loading. It is 3A approved with hygienic tri-clamp connections, making it a liquid meter under tariff item 9028.20.00 for the dairy industry.
9028.20.00Ultrasonic Water Flow Meter
A non-intrusive ultrasonic meter using transit-time technology to measure clean water flow in pipes without moving parts. It suits municipal water distribution systems, classifying it as a liquid meter under tariff item 9028.20.00.
9028.20.00Wastewater Effluent Meter
A Doppler ultrasonic meter for wastewater flow measurement in treatment plant outfalls. It handles solids-laden flows with a submerged sensor design, qualifying as a liquid meter under tariff item 9028.20.00 for effluent monitoring.
9028.30.00Commercial Multi-Tenant Meter
A multi-circuit electricity meter designed for apartment buildings, tracking consumption for each unit from a master panel. It falls under tariff item 9028.30.00 as an electricity supply meter, essential for accurate billing in multi-tenant residential settings.
9028.30.00Digital Single-Phase Electricity Meter
A compact digital single-phase electricity meter measuring residential kWh consumption with an LCD display. It is classified under tariff item 9028.30.00 as an electricity supply meter for accurate billing in homes.
9028.30.00DIN-Rail Mount Electricity Meter
A DIN-rail mount electricity meter for single-phase sub-metering in electrical panels, measuring up to 100A directly. It falls under tariff item 9028.30.00 as an electricity supply meter, ideal for apartment sub-metering with pulse output for building management systems.
9028.30.00High Voltage CT Operated Meter
A high-voltage CT-operated meter for medium voltage systems up to 11kV, using external current and voltage transformers. It is classified under tariff item 9028.30.00 as an electricity meter for production and supply metering in high-voltage applications.
9028.30.00Industrial Demand Electricity Meter
A high-precision industrial demand meter measuring peak demand in kW and energy in kWh for factories, with data logging. It falls under tariff item 9028.30.00 as an electricity meter for industrial supply and production metering.
9028.30.00Modbus RTU Electricity Meter
An industrial electricity meter with Modbus RTU protocol for SCADA integration, measuring electrical parameters. It is classified under tariff item 9028.30.00 as an electricity meter, despite its communication features, which are secondary to metering.
9028.30.00Net Metering Bi-Directional Meter
A bi-directional digital meter for solar PV systems, measuring both grid consumption and generation for net energy billing. It falls under tariff item 9028.30.00 as an electricity supply meter supporting renewable energy integration.
9028.30.00Portable Calibrating Electricity Meter
A portable handheld reference standard meter for field calibration of utility meters, with traceable accuracy. It is specifically covered under tariff item 9028.30.00 as a calibrating meter for electricity meters.
9028.30.00Prepayment Electricity Meter
A token or card-based prepayment electricity meter for pay-as-you-go residential use, with an integrated vending interface. It falls under tariff item 9028.30.00 as an electricity supply meter for prepaid billing systems.
9028.30.00Pulse Output Electricity Meter
A mechanical or digital electricity meter providing a dry contact pulse output proportional to kWh consumption. It is classified under tariff item 9028.30.00 as an electricity meter with a data pulse interface for third-party data loggers.
9028.30.00Residential kWh Electricity Meter
A traditional electromechanical kWh meter with a rotating disc for single-family homes, widely used for utility billing. It qualifies under tariff item 9028.30.00 as a standard electricity supply meter.
9028.30.00Revenue-Grade Certified Meter
A revenue-grade certified meter with ANSI C12.20 Class 0.2 accuracy, designed for utility revenue billing applications. It falls under tariff item 9028.30.00 as a high-precision electricity supply meter with tamper detection and event logging.
9028.30.00Split-Core CT Electricity Meter
A meter with external split-core current transformers for retrofit installations without disconnecting wires. It is classified under tariff item 9028.30.00 as an electricity meter for flexible commercial retrofits.
9028.30.00Three-Phase Smart Electricity Meter
An advanced three-phase smart meter for commercial buildings, featuring remote reading via AMI networks and real-time power quality analysis. It is classified under tariff item 9028.30.00 for its primary function as an electricity meter.
9028.30.00TOU Tariff Electricity Meter
A time-of-use meter tracking consumption across peak and off-peak periods for dynamic pricing, with an internal clock and season programming. It falls under tariff item 9028.30.00 as an advanced electricity supply meter.
9028.90.00Battery Pack for AMR Electricity Meters
A lithium-thionyl chloride battery module that powers automatic meter reading (AMR) functions in smart electricity meters during power outages. This accessory is essential for maintaining data transmission and meter operation when the main power supply is interrupted, making it a dedicated part for electricity supply meters.
9028.90.00Calibrating Resistor Network for Electricity Meters
A precision resistor network used in electricity meters to calibrate current and voltage measurement circuits, ensuring accuracy standards are met. This accessory is specifically designed for calibrating electricity supply meters, making it a dedicated part under this tariff item.
9028.90.00Calibration Test Port Adapter
A quick-connect adapter that provides pulse output access for verifying meter accuracy during field testing. This accessory is designed for use with various utility meters, including electricity, gas, and liquid meters, and is essential for calibration and verification procedures.
9028.90.00Data Retention Memory Module
An EEPROM memory module that stores 10-year load profile data in electricity meters, surviving power outages. This dedicated accessory ensures data retention and is crucial for the accurate recording of consumption history in electricity supply meters.
9028.90.00Digital Flow Meter Sensor Module
A replacement sensor module for gas and liquid flow meters used in utility billing systems, containing the electronic sensing element that measures flow rates. This part is dedicated to gas or liquid supply meters and is essential for their accurate operation.
9028.90.00Digital Gas Meter Calibration Kit
A precision kit used to calibrate residential and commercial gas flow meters, ensuring accurate measurement of natural gas consumption. It is a specialized accessory for gas supply meters.
9028.90.00Electricity Meter Battery Backup Module
A lithium-thionyl chloride battery holder and circuit that retains meter data during power outages in electricity meters. This dedicated accessory ensures reliable operation in supply meters and maintains non-volatile memory.
9028.90.00Electricity Meter Communication Module
An RF or PLC communication module for transmitting meter data to utility headends in smart grid networks. Designed principally as an accessory for electricity meters, it supports AMR/AMI for remote reading.
9028.90.00Electricity Meter Current Transformer
A precision current transformer designed specifically for use in electricity meters to measure high currents accurately by stepping them down proportionally. It is a dedicated part of electricity supply meters.
9028.90.00Electricity Meter Optical Probe Reader
A handheld infrared optical probe for reading encrypted data from smart electricity meters without physical connections. It classifies as an accessory for electricity supply meters and supports DLMS/COSEM protocols.
9028.90.00Electricity Meter Tamper Detection Switch
A magnetic reed switch assembly for detecting unauthorized access or meter case opening in electricity meters. As a security accessory dedicated to electricity supply meters, it enhances tamper detection.
9028.90.00Electricity Meter Terminal Cover Assembly
A polycarbonate terminal cover with sealing features for protecting connection points in electricity meters from environmental hazards and tampering. As a dedicated accessory for electricity meters, it ensures safe operation.
9028.90.00Electricity Meter Testing Terminal Block
A removable terminal block accessory for smart electricity meters, allowing technicians to connect testing equipment without disconnecting mains power. It is a part for electricity supply meters.
9028.90.00Electricity Meter Voltage Sensor Board
A printed circuit board assembly with voltage sensing chips tailored for electricity meters to detect and process line voltage accurately. This part ensures precise measurement in supply meters.
9028.90.00Flow Conditioner Insert for Ultrasonic Meters
A perforated tube insert that creates fully developed flow profiles upstream of ultrasonic transducers in liquid or gas meters. This accessory improves measurement accuracy to ±0.5% and is essential for the proper functioning of ultrasonic meters.
9028.90.00Gas Meter Impeller Replacement Kit
A precision-engineered plastic impeller set for repairing turbine-style gas meters, restoring accurate flow measurement. It is an essential internal part for gas supply meters.
9028.90.00Gas Pressure Test Manifold
A multi-port manifold for simultaneously testing pressure sensors across multiple gas meter installations. It is a part for gas supply meters, constructed of stainless steel for high-pressure applications.
9028.90.00Impedance Calibration Adapter for Meter Testing
A precision adapter used to calibrate electrical impedance in electricity supply meters during factory testing. This calibrating accessory ensures accuracy within 0.1% per ANSI standards and is dedicated to electricity supply meters.
9028.90.00LCD Display Assembly for Utility Meters
A replacement LCD screen and housing specifically for electricity and gas supply meters, displaying consumption data to end users. This part is dedicated to gas or electricity supply meters and is essential for user interface functionality.
9028.90.00Liquid Flow Meter Sensor Head
A replaceable ultrasonic sensor head for non-intrusive liquid flow meters used in water treatment plants. It is a part for liquid supply meters, featuring a corrosion-resistant housing.
9028.90.00Magnetic Coupling for Gas Meter Registers
A magnetic drive coupling that transmits rotation from the meter impeller to the register without seals, used in residential gas flow meters. This mechanical accessory is essential for the safe and accurate operation of gas supply meters.
9028.90.00Meter Calibration Adjustment Tool Set
A specialized torque wrench and shim set designed for precise mechanical adjustments during the calibration of gas, liquid, or electricity supply meters. It is classified as an accessory for supply meters under tariff item 9028.90.00, as it is used solely or principally with these meters. The set is NIST-traceable for regulatory compliance, ensuring accurate calibration.