Machinery; for filtering or purifying gases, other than intake air filters for internal combustion engines

HS v2017 Code: 842139

About machinery; for filtering or purifying gases, other than intake air filters for internal combustion engines

hs code 842139 covers a critical segment of the industrial machinery industry, focused on the production of equipment for filtering and purifying gases. These machines play a vital role in a wide range of manufacturing and processing sectors, ensuring the quality and safety of industrial air and gas streams. As environmental regulations and concerns over air pollution continue to tighten, the demand for effective gas filtration and purification solutions has become increasingly important, making this industry a key contributor to the broader economy.

Production process

The production of machinery under hs code 842139 typically involves a combination of metalworking, engineering, and specialized assembly processes. Manufacturers may utilize techniques such as metal stamping, welding, and precision machining to fabricate the various components that make up these filtration systems. Assembly often requires the integration of filtration media, control systems, and other specialized parts to create a functional, high-performance unit.

Production inputs

The main inputs required for the production of machinery under hs code 842139 include a variety of metals, such as steel, aluminum, and stainless steel, which are used to construct the housing and structural components. Specialized filtration media, such as fabrics, membranes, and adsorbents, are also essential inputs, as they are responsible for the actual filtration and purification processes. Additionally, manufacturers may require various electronic components, control systems, and other ancillary parts to ensure the proper functioning of these machines.

Production outputs

The primary output of the industry covered by hs code 842139 is the machinery and equipment used for filtering and purifying gases, excluding those intended for internal combustion engine intake air. These machines find applications in a wide range of industries, including 842121 Machinery; for filtering or purifying water, 841480 Machinery; for conditioning air, and 841960 Machinery; for liquefying air or other gases, among others. The filtration and purification capabilities of these machines are essential for maintaining air quality, improving process efficiency, and ensuring compliance with environmental regulations.

Revisions to 842139

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 842139. The most recent 3 versions of this code (842139) is in the HS v2022 system:

This page shows a legacy version of code 842139 ( HS v2017).

Older versions

Family tree for machinery; for filtering or purifying gases, other than intake air filters for internal combustion engines

    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/v2017/842139'>842139: Machinery; for filtering or purifying gases, other than intake air filters for internal combustion engines</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/v2017/842121'>842121: Machinery; for filtering or purifying water</a>"]
B --> H["<a href='/classifications/hs/v2017/842122'>842122: Machinery; for filtering or purifying beverages other than water</a>"]
B --> I["<a href='/classifications/hs/v2017/842123'>842123: Machinery; filtering or purifying machinery, oil or petrol filters for internal combustion engines</a>"]
B --> J["<a href='/classifications/hs/v2017/842129'>842129: Machinery; for filtering or purifying liquids, n.e.c. in item no. 8421.2</a>"]
B --> K["<a href='/classifications/hs/v2017/842131'>842131: Machinery; 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