Other: — Other: — Other
Part of: 84212900 — Filtering or purifying machinery and apparatus for liquids: — Other
N363849 · 2026-08-18 — RE: The tariff classification of strainers from China
Descriptive literature was provided for our review. The items under consideration are described as LPD strainers (models LPD0300, LPD1000, and LPD2400), which are engineered to protect downstream fluid system components, such as pumps, valves, and heat exchangers, by removing particulate matter and debris from process media. These devices utilize an internal stainless-steel perforated screen, housed within a robust body constructed of cast iron or ductile iron depending on the specific model size. The strainers feature a specialized internal geometry and an oversized screen that significantly…
N362507 · 2026-07-01 — The tariff classification of the Fournier Rotary Press from Canada
, you requested a tariff classification ruling. Descriptive literature was provided for our review. The item under consideration is the Fournier Rotary Press, which is a dewatering system for industrial and municipal sludge consisting of a sludge pump, a polymer tank, a polymer metering pump, a flocculator and a rotary press connected through a series of pipes, hoses, and electrical wiring. The sludge pump feeds sludge into the flocculator where it is combined with a pre-set ratio of polymer solution that enters the flocculator inlet by means of the polymer metering pump. Through a short…
N359518 · 2026-03-27 — The tariff classification of a combination separator from Italy
, you requested a tariff classification ruling. Descriptive literature was provided for our review. The item under consideration is described as the Caleffi SEP4 (5495, NA549_M series), which is a comprehensive separator designed for hot or chilled water systems, integrating hydraulic, air, dirt, and magnetic separation functionalities. This unit enhances hydraulic separation by removing both magnetic and non-magnetic air and dirt, thereby ensuring hydraulic independence between connected primary and secondary circuits. The SEP4 features an internal coalescing element that continuously and…
N359520 · 2026-03-27 — The tariff classification of a hydro separator from Italy
, you requested a tariff classification ruling. Descriptive literature was provided for our review. The item under consideration is described as the Caleffi Hydro Separator (548, NA548 Series), which is a device designed to operate with a hot or chilled system to create a zone with a low-pressure loss, ensuring hydraulic independence between connected primary and secondary circuits. This design prevents reciprocal influence caused by series connections, as the flow in one circuit does not induce flow in the other when the pressure loss in the common section is negligible. The flow rate in…
N359514 · 2026-03-27 — The tariff classification of an air and dirt separator from Italy
, you requested a tariff classification ruling. Descriptive literature was provided for our review. The item under consideration is described as the Discal Dirtmag air and dirt separator (546-5461-NA546 Series), which is a magnetic air and dirt separator engineered for hydronic systems, integrating three crucial functions: air separation, dirt separation, and ferrous impurity separation. This device continuously removes entrained air, including micro-bubbles, from water or glycol-based fluids within closed-loop heating and cooling systems. Micro-bubble formation, often occurring in components…
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