Seals; mechanical

HS v2022 Code: 848420

About seals; mechanical

HS code 848420 covers mechanical seals, which are critical components in a wide range of industrial equipment and machinery. These seals play a vital role in preventing leaks, maintaining pressure, and ensuring the efficient operation of various systems, from pumps and compressors to turbines and valves. The mechanical seals industry is an integral part of the broader manufacturing and engineering sectors, supporting the smooth functioning of numerous industries and contributing to the overall productivity and competitiveness of the global economy.

Production process

The production of mechanical seals typically involves a combination of precision engineering, advanced materials science, and specialized manufacturing processes. Manufacturers use a range of techniques, such as machining, casting, and surface treatment, to create the intricate components that make up a mechanical seal. The assembly process often requires careful alignment and testing to ensure the seal's performance and durability.

Production inputs

The production of mechanical seals relies on a variety of raw materials, including metals, ceramics, and polymers. High-performance alloys, such as stainless steel and tungsten carbide, are commonly used for the seal faces and other critical components. Specialized lubricants and sealants are also essential inputs, as they help to reduce friction and prevent leaks. Additionally, the industry requires advanced manufacturing equipment, such as CNC machines and precision measurement tools, to ensure the consistent quality and reliability of the final products.

Production outputs

Mechanical seals produced under HS code 848420 are used in a wide range of industrial applications, including 841011 Hydraulic turbines, 841012 Hydraulic power engines and motors, 841320 Liquid pumps, and 841360 Fans. These seals help to maintain the integrity of these systems, contributing to their efficiency, reliability, and longevity. The outputs of the mechanical seals industry are essential for the smooth operation of numerous industries, from manufacturing and energy production to water treatment and transportation.

Revisions to 848420

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 848420. The most recent 1 version of this code (848420) is in the HS v2022 system (this version):

This page shows the most recent version of code 848420.

Older versions

Family tree for seals; mechanical

    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/v2022/8484'>8484: Gaskets and similar joints of metal sheeting combined with other material or of two or more layers of metal; sets or assortments of gaskets and similar joints, dissimilar in composition, put up in pouches, envelopes or similar packings; mechanical seals</a>"]
B --> C["<a href='/classifications/hs/v2022/848420'>848420: Seals; mechanical</a>"]

    B --> D["<a href='/classifications/hs/v2022/848410'>848410: Gaskets and similar joints; of metal sheeting combined with other material or two or more layers of metal</a>"]
B --> E["<a href='/classifications/hs/v2022/848490'>848490: Gasket sets or assortments of gaskets and similar joints; dissimilar in composition, put up in pouches, envelopes or similar packings</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 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