Machinery; for filtering or purifying water

HS v2022 Code: 842121

About machinery; for filtering or purifying water

HS code 842121 covers machinery used for filtering or purifying water. This industry plays a crucial role in ensuring access to clean, safe water for various applications, from residential and commercial use to industrial processes. As water scarcity and pollution become increasingly pressing global issues, the demand for efficient water filtration and purification equipment continues to grow, making this industry an important component of the broader water management and environmental protection sectors.

Production process

The production of water filtration and purification machinery typically involves a combination of mechanical, electrical, and chemical engineering principles. Key steps in the manufacturing process include the fabrication of filter housings, the assembly of filtration media (such as membranes, cartridges, or granular materials), the integration of pumps and control systems, and the testing and quality assurance of the final products.

Production inputs

The main inputs required for the production of water filtration and purification machinery include various types of metals (e.g., stainless steel, aluminum) for the structural components, polymers and other materials for the filtration media, electric motors and control systems, and specialized tools and equipment for the manufacturing process. Additionally, the industry relies on a skilled workforce with expertise in engineering, design, and production techniques.

Production outputs

The primary outputs of HS code 842121 are water filtration and purification systems, which can be used in a wide range of applications, including 842129 Machinery; for filtering or purifying liquids, 842139 Machinery; for filtering or purifying gases, and 853710 Boards, panels, consoles, desks, cabinets and other bases, equipped with two or more apparatus of heading no. 8535 or 8536, for electric control or the distribution of electricity. These products are essential for ensuring the availability of clean, safe water for residential, commercial, and industrial use, as well as for environmental protection and water resource management.

Revisions to 842121

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 842121. The most recent 1 version of this code (842121) is in the HS v2022 system (this version):

This page shows the most recent version of code 842121.

Family tree for machinery; for filtering or purifying water

    graph LR
    A["<a href='/classifications/hs/v2022/84'>84: Machinery and mechanical appliances, boilers, nuclear reactors; parts thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/8421'>8421: Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus for liquids or gases</a>"]
B --> C["<a href='/classifications/hs/v2022/842121'>842121: Machinery; for filtering or purifying water</a>"]

    B --> D["<a href='/classifications/hs/v2022/842111'>842111: Centrifuges; cream separators</a>"]
B --> E["<a href='/classifications/hs/v2022/842112'>842112: Centrifuges; clothes-dryers</a>"]
B --> F["<a href='/classifications/hs/v2022/842119'>842119: Centrifuges; n.e.c. in heading no. 8421, including centrifugal dryers (but not clothes-dryers)</a>"]
B --> G["<a href='/classifications/hs/v2022/842122'>842122: Machinery; for filtering or purifying beverages other than water</a>"]
B --> H["<a href='/classifications/hs/v2022/842123'>842123: Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines</a>"]
B --> I["<a href='/classifications/hs/v2022/842129'>842129: Machinery; for filtering or purifying liquids, n.e.c. in item no. 8421.2</a>"]
B --> J["<a href='/classifications/hs/v2022/842131'>842131: Machinery; intake air filters for internal combustion engines</a>"]
B --> K["<a href='/classifications/hs/v2022/842132'>842132: Machinery; catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines</a>"]
B --> L["<a href='/classifications/hs/v2022/842139'>842139: Machinery; for filtering or purifying gases, other than intake air filters, catalytic converters or particulate filters for internal combustion engines</a>"]
B --> M["<a href='/classifications/hs/v2022/842191'>842191: Centrifuges; parts thereof, including parts for centrifugal dryers</a>"]
B --> N["<a href='/classifications/hs/v2022/842199'>842199: Machinery; parts for filtering or purifying liquids or gases</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6
class M level6
class N level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight