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Pulley tackle and hoists other than skip hoists; winches and capstans; jacks. > Filtering or purifying machinery and apparatus for liquids: > Other > Other
Duty Rate (from China)
Products classified under Tariff item 8421.29.00.90
Activated Carbon Filter Vessel for Beverage Processing
A carbon steel pressure vessel filled with granular activated carbon, used to decolorize and purify liquids in beverage production. It operates by adsorption, removing organic impurities and chlorine from process streams. This apparatus falls under tariff item 8421.29.00 as other filtering or purifying machinery for liquids, distinct from oil or fuel filters.
8421.29.00Bag Filter System for Chemical Processing
A multi-bag filtration system using fabric bags to capture solids from corrosive chemical liquids in industrial processes. It provides mechanical separation by passing liquid through porous bags, retaining particulates. This system is classified under 8421.29.00 as other filtering machinery for liquids, not being oil or fuel filters.
8421.29.00Cartridge Filter Housing for Process Water
A stainless steel housing that holds replaceable cartridge filters to remove fine particulates from industrial process water. The housing provides structural support and flow control, while the cartridges perform mechanical filtration. This apparatus is classified under 8421.29.00 as other filtering machinery for liquids.
8421.29.00Continuous Rotary Vacuum Filter Drum
A continuous rotary vacuum filter drum that filters liquids by drawing them through a filter medium under vacuum, retaining solids on the drum surface. It is used in mineral processing and chemical plants for high-throughput liquid-solid separation. This machinery is classified under 8421.29.00 as other filtering apparatus for liquids, excluding centrifuges.
8421.29.00Depth Cartridge Filter for Hydraulic Fluids
High-capacity depth filters in cartridge form that remove contaminants from hydraulic and lubricating oils in machinery. They operate by trapping particles throughout the filter depth, not just on the surface. This product is classified under 8421.29.00 as other liquid filters, not being intake or engine-specific oil filters.
8421.29.00Industrial Sand Filter for Water Treatment
A large-scale sand filter system that removes suspended solids from water in municipal or industrial treatment plants. It uses a bed of sand to trap particulates as water passes through, providing physical filtration. This system is classified under 8421.29.00 as other filtering machinery for liquids, distinct from oil or gas filters.
8421.29.00Inline Disc Filter for Wastewater
A rotating disc filter that continuously filters wastewater through fine mesh screens for tertiary treatment. The discs rotate through the wastewater, capturing solids on the mesh while allowing clean water to pass. This apparatus is classified under 8421.29.00 as other filtering machinery for liquids.
8421.29.00Magnetic Separator Filter for Ferrous Contaminants
A pipeline magnetic separator that captures ferrous particles from liquids in machining and hydraulic systems. It uses magnetic fields to attract and remove metal contaminants, protecting pumps and valves from wear. This apparatus is classified under 8421.29.00 as other purifying machinery using magnetic filtration.
8421.29.00Membrane Filter Module for Ultrapure Water
Cross-flow membrane modules (microfiltration or ultrafiltration) that produce ultrapure water for semiconductor fabrication. They operate by passing water under pressure across a membrane, allowing only water molecules to permeate while retaining submicron contaminants. This apparatus is classified under 8421.29.00 as other purifying machinery for liquids.
8421.29.00Microfiltration Ceramic Element System
A ceramic membrane-based microfiltration system for purifying liquids in food, beverage, and biotech applications. It uses porous ceramic elements to physically remove particulates and microorganisms, withstanding high temperatures and aggressive cleaning agents. This system is classified under 8421.29.00 as other filtering machinery for liquids.
8421.29.00Plate and Frame Filter Press for Sludge
A hydraulic filter press using cloth-covered plates to dewater industrial sludge and wastewater solids. It applies pressure to force liquid through the filter cloth, leaving a dry cake of solids. This machinery is classified under 8421.29.00 as other liquid purifying machinery via pressure filtration.
8421.29.00Pressure Leaf Filter for Edible Oils
A vertical pressure leaf filter using stainless steel leaves coated with filter aid to clarify edible oils and fats. It removes waxes, gums, and color bodies from oils through pressure filtration. This apparatus is classified under 8421.29.00 as other liquid purifying machinery in food processing.
8421.29.00Self-Cleaning Backwash Filter for Irrigation
An automatic backwashing screen filter that cleans itself to maintain irrigation water quality in agriculture. It removes sediment and debris from water using a screen, with a backwash cycle to flush captured particles. This apparatus is classified under 8421.29.00 as other filtering machinery for liquids.
8421.29.00Vibratory Screen Separator for Slurry
A vibrating screen machine that separates solids from liquid slurries using mesh screens in mining and food processing. The vibration moves the slurry across the screen, allowing liquid to pass while retaining solids. This apparatus is classified under 8421.29.00 as other liquid filtering apparatus through mechanical sieving.
8421.29.00Woven Wire Mesh Filter for Cooling Water
A stainless steel woven wire mesh strainer for removing debris from industrial cooling water systems. It provides simple mechanical filtration by trapping particles larger than the mesh opening. This apparatus is classified under 8421.29.00 as other liquid filters.