Chapter 84 is the core chapter in the HS classification system covering mechanical appliances, machinery and their parts, including power machinery, pumps, compressors, fans, valves, bearings, transmission devices, etc. Goods in this chapter generally have power-driven or mechanical motion characteristics, distinguishing them from electrical equipment in Chapter 85. Within the chapter, headings are arranged by function or use, and 8481 is specifically for valves and similar devices for pipes, boilers, tanks, etc. Heading 8481 covers valves and similar devices for pipes, boilers, tanks, vats or similar containers, including pressure-reducing valves, check valves, safety valves, relief valves, gate valves, globe valves, ball valves, butterfly valves, etc., as well as their regulating devices. This heading includes both complete valves and parts specifically for valves, but note that if valve parts are general-purpose mechanical parts (such as bolts, springs), they may be classified under other headings. Code 848190 is a 6-digit subheading. The first 2 digits 84 indicate Chapter 84 (mechanical appliances, machinery and their parts); digits 3-4, 81, indicate heading 8481 (valves and similar devices); digits 5-6, 90, indicate subheading 848190, specifically referring to parts of valves and similar devices. Therefore, 848190 applies only to parts specially or principally for the valves and similar devices listed in 8481, such as valve bodies, bonnets, stems, seats, discs, handwheels, actuator connectors, etc. If the part is a general-purpose item, it should be classified according to its own material or function. This product is a valve part, specially for valves, and meets the description of subheading 848190. If the valve part is a general-purpose mechanical part (such as bolts, gaskets), it should be classified under other headings (such as 7318, 8484, etc.); if it is a complete valve, it should be classified under a specific subheading of 8481 (such as 848110, 848120, etc.); if it is a faucet, cock, etc., it may be classified under 848180. Therefore, only parts specially for valves are classified under 848190.

Product name: The specific name of the declared product, which should accurately reflect the part's use and material, such as "valve body for valves", "valve stem for valves", etc. Use: Explain which type of valve or equipment the part is specially used for, such as "for gate valves in petroleum pipelines", "for boiler safety valves", etc. Material: Declare the main material of the part, such as stainless steel, carbon steel, brass, plastic, etc., which affects classification and tariff rates. Brand: Fill in the brand or manufacturer name of the part; if no brand, fill in "no brand". Model: Fill in the model or specification of the part to facilitate customs identification. Applicable valve type: Indicate which type of valve the part is suitable for, such as gate valve, ball valve, globe valve, etc. Processing method: Explain the processing method of the part, such as casting, forging, machining, etc. Product name: valve body for valves; Use: for gate valves in petroleum pipelines; Material: stainless steel; Brand: XYZ; Model: DN100; Applicable valve type: gate valve; Processing method: casting. Misdeclaring general-purpose parts (such as bolts, gaskets) as valve-specific parts. Not specifying the use, making it impossible for customs to determine whether it is specially used. False material declaration, such as declaring a plastic valve body as metal.

The core basis for classification is whether the part is specially or principally for the valves and similar devices listed in 8481. If the part is general-purpose, it should be classified according to its own characteristics. At the same time, consideration should be given to the part's material, function, and whether it is combined with other devices. For complete valves, they should be classified under specific subheadings of 8481; for valve parts, only those specially for valves are classified under 848190. 848110 Pressure-reducing valves: 848110 is for complete pressure-reducing valves, while 848190 is for valve parts. If a complete pressure-reducing valve is declared, it should be classified under 848110; if it is a part specially for a pressure-reducing valve, it is classified under 848190. 848120 Valves for oleohydraulic or pneumatic transmission: 848120 is for complete valves used in oleohydraulic or pneumatic transmission, while 848190 is for valve parts. If a part is specially for such transmission valves, it is still classified under 848190. 848130 Check valves: 848130 is for complete check valves, and 848190 is for their parts. Distinction should be made based on whether a complete valve or a part is declared. 848140 Safety or relief valves: 848140 is for complete safety or relief valves, and 848190 is for their parts. If a part is specially for a safety valve, it is classified under 848190. 848180 Other valves and similar devices: 848180 includes other complete valves not elsewhere specified, such as ball valves, butterfly valves, etc., while 848190 is for their parts. If a complete valve is declared, it should be classified under 848180. Is the part specially for valves? Is it a general-purpose mechanical part? Is it declared together with a complete valve? Does the material affect classification? Is additional explanation required?

How are valve parts and complete valves distinguished in HS codes? Complete valves are classified under specific subheadings of 8481, such as 848110 (pressure-reducing valves), 848120 (valves for oleohydraulic or pneumatic transmission), etc.; while valve parts are classified under 848190. The key distinction is whether the declared product is a complete valve or a part specially for valves. If parts are imported together with complete valves, they are usually classified as complete valves. How to determine whether a part is specially for valves? Specially for valves means that the part cannot be used for other machinery, and its design, shape, and function are only suitable for valves. For example, valve bodies, bonnets, stems, etc. are usually specific parts; while bolts, nuts, gaskets, etc. are general-purpose items and are not specific parts. If a valve part is made of multiple materials, how should it be declared? The main material should be declared, and the proportion or value of each material should be noted. If parts of different materials can be separated, they should be declared separately; if they form a composite, they should be classified according to the main material. What are the declaration elements for valve parts? Usually include product name, use, material, brand, model, applicable valve type, processing method, etc. The specifics are subject to customs requirements; it is recommended to refer to the "Catalogue of Specifications for Declaration of Import and Export Goods of the Customs of the People's Republic of China". Are special documents required when importing valve parts? Generally, basic documents such as contract, invoice, packing list, and bill of lading are required. If special equipment or safety certification is involved, relevant certificates may be required. The specifics are subject to customs and relevant department requirements. What is the export tax rebate rate for 848190? The export tax rebate rate will be adjusted according to national policies. It is recommended to check the latest export tax rebate rate database or consult the local tax authority. No specific value is provided. What are the consequences of incorrect classification of valve parts? It may lead to customs inspection, tax supplementation, fines, and even affect the enterprise's credit rating. In serious cases, it may be suspected of smuggling. It is recommended to declare truthfully and consult a professional customs broker or customs when necessary. How to check the latest tax rate for 848190? You can check the latest import tax rate and export tax rebate rate by entering the HS code on the General Administration of Customs website, China International Trade Single Window, or professional tariff inquiry platforms. Tax rates may change, and the official release shall prevail.