33391 - Pump and Compressor Manufacturing

Introduction

If you're navigating the manufacturing sector, understanding the nuances of NAICS codes is essential. NAICS code 33391 plays a critical role by identifying establishments involved in Pump and Compressor Manufacturing. This industry segment is vital across numerous sectors, including industrial processing, water supply, and oil & gas, making it a cornerstone of modern infrastructure and production.

What is NAICS Code 33391?

NAICS code 33391 pertains to businesses primarily engaged in manufacturing pumps and compressors. These products include air and gas compressors, as well as related pumping equipment for diverse applications. Whether it's moving water in municipal systems or compressing gases for industrial use, companies under this code provide indispensable machinery essential for operational continuity.

Sector and Typical Business Activities

• Sector: Manufacturing
• Industry Focus:
  • Industrial pump manufacturing
  • Air and gas compressor manufacturing
  • Manufacture of pumping equipment for water and sewage systems

Companies classified under NAICS 33391 contribute to sectors such as:

• Industrial manufacturing processes
• Water and wastewater management
• Oil and gas extraction and processing
• HVAC and refrigeration systems

These businesses manufacture equipment that ensures fluid and gas movement, which is central to many industries globally.

Size Standards for NAICS Code 33391

To qualify as a small business under NAICS 33391, the standards set by the U.S. Small Business Administration (SBA) generally consider annual receipts. As of the latest guidelines:

• Size Standard: $38.5 million in average annual receipts over the past three years.

This size standard is pivotal for businesses seeking government contracts or eligibility for small business programs within the manufacturing sector.

Examples of Businesses under NAICS Code 33391

• Industrial pump manufacturers producing centrifugal and positive displacement pumps.
• Air and gas compressor producers supplying units for factory automation or oil & gas applications.
• Firms manufacturing water and sewage pumping equipment deployed in municipal water systems.

These businesses often serve clients spanning manufacturing plants, water treatment facilities, energy producers, and more.

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NAICS Code 33391 Details at a Glance

Item	Description
NAICS Code	33391
Title	Pump and Compressor Manufacturing
Sector	Manufacturing
Industry Description	Manufacturing pumps, compressors, and related equipment like pumping machinery for various uses
Typical Business Activities	Industrial pump manufacturing, air & gas compressor manufacturing, water/sewage pumping equipment manufacture
Size Standard (SBA)	$38.5 million average annual receipts
Primary End-Use Industries	Industrial processes, water supply, oil & gas extraction, HVAC systems
Examples of Products	Centrifugal pumps, positive displacement pumps, air compressors, gas compressors

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Frequently Asked Questions (FAQ)

What products are included under NAICS code 33391?

This code includes the manufacture of industrial pumps, air compressors, gas compressors, and pumping equipment used in water and sewage systems.

Which industries typically use pumps and compressors from NAICS 33391 businesses?

Industries such as manufacturing, water and wastewater management, oil and gas, and HVAC systems commonly use equipment produced by these manufacturers.

How do I know if my business qualifies as a small business under NAICS 33391?

Your eligibility depends on your average annual receipts. For this code, if your annual receipts are $38.5 million or less, you meet the SBA's small business size standard.

Can businesses outside manufacturing be classified under NAICS 33391?

No, NAICS 33391 specifically refers to manufacturing establishments. Businesses involved only in distribution or services related to pumps and compressors belong to different NAICS codes.

How can understanding NAICS 33391 help in government contracting?

Knowing your NAICS code allows you to identify relevant contract opportunities, meet eligibility criteria, and participate in targeted small business programs.

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Conclusion

NAICS code 33391 encapsulates a crucial manufacturing sector focusing on pump and compressor production—key components that power a wide range of industries. Whether you’re an entrepreneur seeking government contracts or an industry professional researching market segments, understanding the scope, size standards, and business activities under this code can provide a significant advantage. For companies operating in or with ties to manufacturing, staying informed about NAICS 33391 is essential for navigating industry regulations and opportunities effectively.

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