What Are Welded Air Ducts?

Welded Air Ducts are industrial air conveying systems created by joining duct sections through welding, providing high mechanical strength and airtightness.

These systems can be manufactured from galvanized, stainless steel and black steel. They are preferred for high temperatures, high pressure, dense smoke, oily air, corrosive environments and heavy process exhaust applications where standard ventilation ducts may be insufficient.

How Are Welded Air Ducts Manufactured?

The duct system is manufactured through sheet cutting, bending, forming, welded assembly, flange installation, surface treatment and airtightness inspection according to project dimensions.

Material type and wall thickness are determined according to the temperature, chemical content, oil concentration, pressure value and required mechanical strength of the air to be conveyed. Proper welding and connection details are critically important for long-lasting duct operation.

Material Options

• Welded galvanized air ducts: Preferred for general ventilation, exhaust and medium-duty industrial applications.
• Welded stainless steel air ducts: Used in areas requiring hygiene, corrosion resistance and chemical resistance.
• Welded black steel air ducts: Preferred in high-temperature, smoke extraction, furnace exhaust and heavy process lines.
• Special painted duct systems: Can be applied in projects with outdoor exposure, chemical environments or aesthetic requirements.
• Insulated duct applications: May be preferred in systems requiring heat-loss, condensation and surface-temperature control.

Applications

• Industrial ventilation systems
• Smoke extraction and exhaust lines
• Welding fume and process extraction systems
• Oil mist and kitchen exhaust ducts
• Furnace, boiler and high-temperature exhaust lines
• Chemical process and corrosive air conveying systems
• Dust collection and filter connection lines
• Industrial process areas requiring ATEX risk assessment
• Food, pharmaceutical, chemical, metal, textile and automotive facilities

Advantages of Welded Air Ducts

• Provide high airtightness performance.
• Can be designed for high temperatures and demanding process conditions.
• Offer galvanized, stainless steel and black steel material options.
• Mechanical strength increases through welded joints.
• Provide reliable use in lines carrying oily air, smoke, dust and process exhaust.
• Are easily integrated into systems with flanged connections and special transition fittings.
• Can be designed with project-specific dimensions, cross-sections and routes.

Technical Design Criteria

• Airflow rate and duct cross-section calculation
• Air velocity and pressure loss analysis
• Wall thickness and material selection
• Airtightness class and welding details
• Flange, gasket and connection system
• Hanger, bracket and support system calculation
• Access doors for cleaning and maintenance
• Fire, smoke and temperature resistance requirements
• Need for insulation, paint or surface coating

Welded Air Duct Selection Criteria

Welded Air Ducts should be selected by evaluating conveyed air characteristics, temperature, oil concentration, smoke volume, chemical content, dust load, duct pressure, airflow rate, duct route and airtightness requirements together.

The selection of galvanized, stainless steel or black steel must also be made according to the process requirements for temperature, corrosion resistance, hygiene and durability. Incorrect material or wall-thickness selection can cause deformation, leakage, corrosion and performance loss.

Airtightness, Welding and Installation Quality

In industrial duct systems, airtightness directly affects fan performance and energy consumption. Welding quality, flange connections, gasket selection and installation practices should be inspected together in welded duct manufacturing.

Airtight and durable duct lines are particularly important for operational safety in systems carrying smoke, oil mist, chemical exhaust and hot air.

Airtes Welded Air Duct Solutions

Airtes provides project-focused design and technical support for Welded Air Ducts used in industrial ventilation, process exhaust, smoke extraction, oil mist, dust collection and high-temperature applications.

During system evaluation, duct cross-section, airflow rate, pressure loss, material type, wall thickness, welding details, suspension system, on-site installation conditions and maintenance access are considered together. This creates a durable and reliable duct system suited to the operation.

Why Airtes?

• Galvanized, stainless steel and black steel duct design suited to the project
• Combined evaluation of airflow rate, pressure loss, temperature and process conditions
• Solution-oriented approach for industrial exhaust, smoke extraction and process ventilation applications
• Support for airtightness, welding quality and material selection
• Installation and technical support suited to site conditions
• Long-lasting duct system solutions suited to operational needs

Frequently Asked Questions

What Are Welded Air Ducts?

Welded Air Ducts are industrial duct systems created by joining duct sections through welding, providing high airtightness and mechanical strength.

What Is the Difference Between Galvanized, Stainless Steel and Black Steel Ducts?

Galvanized ducts are preferred for general ventilation, stainless steel ducts for areas requiring hygiene and corrosion resistance, and black steel ducts for high-temperature and heavy process exhaust applications.

Where Are Welded Ducts Used?

They can be used in smoke extraction, oil mist exhaust, furnace and boiler exhaust, dust collection, process ventilation, chemical exhaust and high-temperature lines.

How Are Welded Ducts Selected?

Airflow rate, duct cross-section, temperature, pressure loss, conveyed air characteristics, material type, wall thickness, airtightness requirements and on-site installation conditions should be evaluated together during selection.

Contact Airtes for Welded Air Ducts Suited to Your Project

Welded Air Ducts should not be selected before the airflow rate, duct route, temperature, process exhaust, material requirements, airtightness expectations and installation conditions at your facility have been properly analyzed. The Airtes technical team provides professional support for a solution suited to your operation.

You can contact us for detailed information, site assessment and a project-based quotation.