Machinery; for filtering or purifying water

HS v2017 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 domestic, industrial, and agricultural use. As water scarcity and pollution become increasingly pressing global issues, the demand for water filtration and purification equipment continues to grow, making this industry an important part of the broader water management and environmental protection sectors.

Production process

The production of water filtration and purification machinery involves a range of manufacturing processes, including metal fabrication, assembly, and the integration of various components such as filters, membranes, pumps, and control systems. Manufacturers may utilize techniques like CNC machining, welding, and precision engineering to ensure the quality and performance of their products.

Production inputs

The main inputs required for the production of water filtration and purification machinery include metals (such as stainless steel, aluminum, and plastics), filtration media (e.g., activated carbon, membranes), pumps, valves, and electronic components for control and monitoring systems. Manufacturers also rely on specialized engineering and design expertise, as well as production equipment like CNC machines and assembly lines.

Production outputs

The primary output of this industry is a wide range of water filtration and purification equipment, including 842121 Machinery; for filtering or purifying water, 842129 Machinery; for filtering or purifying liquids, other than water, and 842191 Parts; of machinery for filtering or purifying water. These products are used in various applications, such as municipal water treatment, industrial process water, and residential/commercial water purification systems.

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 page shows a legacy version of code 842121 ( HS v2017).

Newer versions

Family tree for machinery; for filtering or purifying water

    graph LR
    A["<a href='/classifications/hs/v2017/84'>84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof</a>"]
A --> B["<a href='/classifications/hs/v2017/8421'>8421: Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus for liquids or gases</a>"]
B --> C["<a href='/classifications/hs/v2017/842121'>842121: Machinery; for filtering or purifying water</a>"]

    B --> D["<a href='/classifications/hs/v2017/842111'>842111: Centrifuges; cream separators</a>"]
B --> E["<a href='/classifications/hs/v2017/842112'>842112: Centrifuges; clothes-dryers</a>"]
B --> F["<a href='/classifications/hs/v2017/842119'>842119: Centrifuges; n.e.c. in heading no. 8421, including centrifugal dryers (but not clothes-dryers)</a>"]
B --> G["<a href='/classifications/hs/v2017/842122'>842122: Machinery; for filtering or purifying beverages other than water</a>"]
B --> H["<a href='/classifications/hs/v2017/842123'>842123: Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines</a>"]
B --> I["<a href='/classifications/hs/v2017/842129'>842129: Machinery; for filtering or purifying liquids, n.e.c. in item no. 8421.2</a>"]
B --> J["<a href='/classifications/hs/v2017/842131'>842131: Machinery; intake air filters for internal combustion engines</a>"]
B --> K["<a href='/classifications/hs/v2017/842139'>842139: Machinery; for filtering or purifying gases, other than intake air filters for internal combustion engines</a>"]
B --> L["<a href='/classifications/hs/v2017/842191'>842191: Centrifuges; parts thereof, including parts for centrifugal dryers</a>"]
B --> M["<a href='/classifications/hs/v2017/842199'>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 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