9032.20.00.00 - Manostats

This HTS category, 9032.20.00.00, specifically covers "Manostats." Manostats are instruments designed for the automatic regulation or control of pressure. They function by maintaining a constant pressure within a system, often by opening or closing valves or adjusting pumps in response to pressure deviations. These devices are crucial in various industrial processes, laboratory settings, and scientific applications where precise pressure control is paramount for operational efficiency and safety.

While the broader heading 9032 encompasses automatic regulating or controlling instruments and apparatus, this specific sub-heading distinguishes manostats from other types of controllers. Notably, it differs from sibling category 9032.10.00, which is dedicated to thermostats, instruments primarily controlling temperature. Unlike thermostats, manostats are solely concerned with the regulation of pressure, not temperature, even though a specific application might require both. The category also excludes parts and accessories covered under 9032.90.

As this is a leaf node within the HTS, there are no further subcategories to introduce. Classification under 9032.20.00.00 is therefore final for goods meeting the definition of a manostat. Importers and exporters should ensure that the primary function and design of the apparatus are for the automatic control of pressure to correctly assign goods to this classification.