2022 NAICS national industry in sector 31-33 Manufacturing

332911 Industrial Valve Manufacturing

NAICS 332911 is the US industry code for industrial valve manufacturing. This U.S.

Code
332911 (2022 NAICS)
Title
Industrial Valve Manufacturing
Part of
Metal Valve Manufacturing
SBA small business limit
Up to 750 employees
Closest UK SIC
28131, 28132 (details)

Changes coming. The NAICS 2027 revision applies to data from 1 January 2027, and SBA proposed new size standards on 20 August 2026. The values on this page are the ones in force today; we update this page when the official files change.

Official definition

This U.S. industry comprises establishments primarily engaged in manufacturing industrial valves and valves for water works and municipal water systems.

Examples Census gives

Source: US Census Bureau, 2022 NAICS descriptions.

When to use a different code

Census classifies these close-sounding activities somewhere else. Businesses mainly engaged in:

Source: US Census Bureau, 2022 NAICS cross-references.

Activities listed under 332911

The Census index assigns these 29 activities to this code. If your business matches one, this is your code.

Source: US Census Bureau, 2022 NAICS index file.

SBA size standard for 332911

To count as a small business for SBA loans and federal contracts under NAICS 332911, your business (including affiliates) must not exceed 750 employees. Check your business.

Source: SBA table of size standards, effective March 17, 2023.

Closest UK SIC 2007 codes

There is no official one-to-one link between NAICS and UK SIC. These codes share the same international class (ISIC Rev. 4: 2813), so treat them as a starting point and check the definition.

Built from Census concordances 2022→2017 NAICS and 2017 NAICS→ISIC Rev. 4.

Similar codes to compare

Data last changed November 14, 2026. How this page is built.