NAICS 33291 - Metal Valve Manufacturing
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What is NAICS 33291
NAICS code 33291 covers establishments primarily engaged in the manufacturing of metal valves, including industrial valves, fluid power valves and hose fittings, plumbing fixture fittings and trim, and other metal valves and pipe fittings. Businesses operating in this sector produce critical components that regulate the flow and pressure of gases, liquids, and other materials in various industrial, commercial, and municipal applications. These manufacturers often utilize advanced metallurgical processes and precision engineering to ensure product durability and compliance with industry standards. Government agencies frequently contract with these manufacturers to secure reliable valves for infrastructure projects, defense applications, water management, and energy systems.
Industry Classification for NAICS 33291
This industry comprises establishments primarily engaged in manufacturing one or more of the following metal valves: (1) industrial valves; (2) fluid power valves and hose fittings; (3) plumbing fixture fittings and trim; and (4) other metal valves and pipe fittings.
Breakdown for NAICS 33291
- Includes manufacturing of industrial, fluid power, plumbing, and other metal valves.
- Covers products used in industrial, commercial, and municipal applications.
- Involves precision metalworking and compliance with industry standards.
- Serves sectors such as defense, water treatment, energy, and infrastructure.
- Small and large manufacturers participate in government contracting.
- Supports both new installations and maintenance/replacement projects.
Included Activities for NAICS 33291
- Manufacturing industrial metal valves for flow control applications.
- Producing fluid power valves and hose fittings for hydraulic systems.
- Fabricating plumbing fixture fittings and trim for building infrastructure.
- Designing and assembling corrosion-resistant metal valves.
- Testing valves for pressure tolerance and compliance with standards.
- Customizing valve products for specialized government requirements.
- Packaging and delivering valve assemblies for infrastructure projects.
- Providing technical support and maintenance services for valve systems.
Business Types for NAICS 33291
- Precision metalworking manufacturers specializing in valves.
- Industrial equipment suppliers serving government contracts.
- Small businesses certified for federal contracting opportunities.
- Defense contractors producing valves for military applications.
- Manufacturers focused on plumbing and building fixtures.
- Suppliers of components for energy and water infrastructure systems.
Government Buyers for NAICS 33291
Government agencies such as the Department of Defense, Department of Energy, Environmental Protection Agency, and local water authorities commonly purchase metal valve products under NAICS 33291. These agencies require valves to maintain and upgrade infrastructure related to water treatment, energy distribution, military equipment, and emergency services. Reliable valve manufacturing is essential for maintaining operational safety, environmental compliance, and durability in critical systems, making these products a strategic procurement priority for federal and state government entities.
Contract Types & Procurement for NAICS 33291
Contracts under NAICS 33291 typically include firm-fixed-price and indefinite-delivery/indefinite-quantity (IDIQ) contracts due to the standardized nature of metal valve products and recurring maintenance needs. Procurement methods often include competitive bidding and negotiated procurements, especially for high-volume or specialized valve types. Contract values vary widely, ranging from small purchase orders for plumbing fittings to multimillion-dollar contracts for industrial and defense-grade valves, reflecting the diverse applications and production scales within this sector.
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