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Rectangular Duct 

Leading Rectangular Duct Suppliers in China

Looking for durable and high-performance rectangular ducts? Look no further, BromingHvac is here to meet all your HVAC needs.
BromingHvac is a leading manufacturer in China, specializing in top-quality rectangular ducts designed for a variety of industrial applications. With our expertly crafted ducts, we ensure long-lasting durability and optimal efficiency for all your ventilation systems. Contact us today to learn more about our products and how they can enhance your HVAC operations. Trust BromingHvac for all your rectangular duct needs.
Economical Pricing Options
CE SGS BV ISO9001
Excellent pre-sales and after-sales service
Rectangular Duct
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Broming’s Rectangular Duct 

Regardless of whether you are involved in industrial ventilation, HVAC systems, or any other application, our Rectangular Ducts have been designed to meet your specific needs.

The BromingHvac Rectangular Duct Solution is a state-of-the-art system designed to provide maximum durability and precision in HVAC applications. Known for its high efficiency, this solution is capable of handling large volumes of airflow while ensuring optimal performance and air distribution. Engineered to meet a range of operational needs, it offers superior control over airflow dynamics, making it an essential component for systems that require consistent and high-quality air ventilation.

One of the key factors contributing to its exceptional performance is the advanced manufacturing techniques employed by BromingHvac. The rectangular ducts are designed with optimal dimensions and reinforced materials, ensuring both strength and airflow efficiency. These ducts are crafted to maintain structural integrity under high pressures and varying temperatures, providing stability without compromising air quality.

The BromingHvac Rectangular Duct Solution is available in a variety of sizes and configurations to suit a wide range of HVAC systems. Whether you’re looking for ducts for large industrial applications or commercial setups, BromingHvac offers solutions that meet your exact specifications, with reliable performance and long-lasting durability.

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Our Rectangular Duct Features

Precision Fabrication

Manufactured with CNC plasma cutting and automatic forming lines, each duct maintains precise dimensions and smooth edges, ensuring perfect alignment during installation.

Corrosion Resistance

The galvanized steel coating protects against rust and oxidation, extending service life even under high-humidity or coastal environments.

Airflow Efficiency

Smooth internal surfaces reduce frictional losses, stabilizing air velocity and pressure, which helps improve system energy efficiency.

Flexible Connection Options

Available in various joining systems—TDC, TDF, flange, or slip joint—providing easy installation and air-tight connections for different project types.

We offer the following rectangular duct

Slip and drive
TDF and TDC rectangular ducts
Offered with snap lock or Pittsburgh longitudinal seams, with sealant is available in the seams upon request.
Metal types including G90 galvanized, aluminum, stainless, black iron, and paint grip
Built to SMACNA standards
Available lined with insulation
Available as double wall duct

Specifications for Broming’s Rectangular Duct

MaterialGalvanized Steel , Aluminum, or Stainless Steel
Thickness0.5–1.2 mm
ShapeRectangular / Square
Length1000–1500 mm per section
Connection TypeTDC / TDF / Flange / Slip Joint
Surface FinishZinc Coated / Painted / Powder Coated
StandardSMACNA / DW144 / ISO 9001
ApplicationAir Conditioning, Ventilation, Smoke Exhaust

Applications & Manufacturing of Rectangular Ducts

BromingHvac
Rectangular ducts are widely used in HVAC projects that demand large air volume and high structural stability.
Each rectangular duct is fabricated from prime galvanized steel coils using automated cutting and folding machines.
The production process ensures tight dimensional tolerance, reinforced seams, and high leak-tightness.
Applications
Office buildings and shopping centers
Underground parking ventilation systems
Industrial workshops and production facilities
Hospitals, laboratories, and cleanrooms
Metro stations, tunnels, and airports
Cutting:CNC plasma cutting for smooth edges and accurate sizing.
Forming:Automated forming machines shape the panels with precise angles.
Assembly:Joints are locked and sealed for rigidity.
Testing:Air leakage and surface coating tests are performed before packing.
TDC/TDF Flange System:The most common option for medium and large ducts, ensuring fast assembly and reliable sealing.
Angle Flange Connection:Used for heavy-duty applications that require additional structural strength.
Slip Joint Connection:Ideal for smaller or modular duct runs requiring quick field installation.
Sealants and Gaskets:All joints are sealed with gasket or mastic sealant to achieve SMACNA Class 3 leakage standards.

Why Choose BromingHvac Factory’s Rectangular Ducts

BromingHvac Rectangular Ducts are increasingly sought after by businesses for their affordable price, advanced technology, superior quality, exceptional service, and customization options. Offering outstanding performance with impressive results, BromingHvac’s rectangular ducts are the perfect solution for companies looking for high-quality, innovative products at competitive prices.
High Quality Manufacturing
At BromingHvac, we apply modern manufacturing practices to ensure that our rectangular ducts meet global standards. With certifications like ISO 9001, we use top-grade materials and precision engineering to guarantee the performance, durability, and efficiency of every duct. Our commitment to quality ensures that each rectangular duct is built to withstand the demands of industrial and commercial HVAC systems.
Compared to other options in the market, BromingHvac’s rectangular ducts offer significant savings, with costs reduced by as much as 15-30%. The use of durable, high-quality materials ensures a longer service life, minimizing the need for repairs and reducing overall maintenance costs.
Our manufacturing process ensures consistent and high-quality production with advanced control over dimensions and airflow efficiency. With precise control over material strength and durability, we guarantee optimal performance in various industrial applications. Advanced technology also allows for customized solutions, ensuring that our ducts meet the specific needs of any HVAC system.

Around 60% of our international clients opt for customized solutions. BromingHvac offers over 20 configurable parameters, including size, material, and design specifications, allowing you to tailor our rectangular ducts to perfectly fit your specific HVAC system requirements and optimize your operations.

BromingHvac provides exceptional customer service, from pre-purchase consultations to ensure you choose the right rectangular ducts for your needs, to assistance with installation and guidance on proper usage. Our technical experts are always available to support you, ensuring seamless integration and optimal performance of your HVAC system. With our dedicated support, you can easily incorporate the latest advancements in duct technology into your projects.

Welcome to BromingHVAC’s Rectangular Duct Factory

Our plants are equipped with the most advanced technology, allowing us to engineer high-quality ducts in order to cater for the global industry’s requirements. 
Mastering the Art of Compounding with the Rectangular Ducts
This article examines the rectangular duct, which is commonly used in HVAC systems for efficient air distribution and ventilation. It covers the basic components, working principles, and practical applications of the duct, providing a comprehensive understanding of this essential equipment. Whether you’re a beginner or someone seeking deeper knowledge, this guide will help you understand how rectangular ducts play a crucial role in modern air management systems.

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Frequently Asked Questions

answers to Common Queries about Rectangular Ducts

A:Our rectangular ducts are made from high-quality galvanized steel, aluminum, or stainless steel, ensuring durability and long-lasting performance in HVAC systems. We can also provide custom material options based on your specific needs.

A:Yes, we offer a wide range of sizes and can customize the dimensions of the rectangular ducts to meet your specific project requirements. Simply provide the dimensions, and we will tailor the ducts to your specifications.

A:Our rectangular ducts are designed to meet the needs of both commercial and residential HVAC systems. Whether for industrial ventilation or home air conditioning, our ducts provide optimal airflow and efficiency.

A:The lead time typically ranges from 7 to 14 days, depending on the order size and customization requirements. We always strive to fulfill orders as efficiently as possible to meet project deadlines.

A:We provide detailed specifications for each size and custom option of rectangular ducts. If you provide us with your system’s layout and dimensions, we can help you determine the right duct size and configuration for your setup.