Galvanized Steel Rounded Corner Rectangular Duct Access Door
Rounded corner rectangular duct access door made of corrosion-resistant galvanized steel sheet for HVAC ventilation and air conditioning duct inspection and maintenance. This safe rounded-edge inspection door avoids sharp edges during installation, equipped with stable fasteners for secure closure on rectangular duct panels. Featuring multiple standard sizes including 250×150, 380×250, 510×380 and 660×510 mm with custom size support, the galvanized steel access hatch enables easy access to internal dampers, filters and coils. Simple to mount and long-lasting, it is an ideal maintenance accessory for commercial air conditioning ductwork and industrial ventilation systems.
Product Description
The Galvanized Steel Rounded Corner Rectangular Duct Access Door is designed to provide convenient and secure access to HVAC duct systems for inspection, cleaning, and maintenance. Featuring a rounded corner rectangular structure, this access door is widely used in ventilation and air conditioning systems where frequent access to internal duct components is required.
Made from high-quality galvanized steel sheet, the product offers excellent durability, corrosion resistance, and long service life. The smooth rounded-corner design improves safety during installation and maintenance while giving the product a cleaner, more professional appearance. It is suitable for commercial, industrial, and general HVAC ductwork applications.
Key Features
- Galvanized Steel ConstructionMade from durable galvanized steel sheet for corrosion resistance and long-term use.
- Rounded Corner DesignSafer edge profile and cleaner appearance compared with standard sharp-corner access doors.
- Convenient Inspection & MaintenanceProvides easy access to duct interiors for checking dampers, fire dampers, filters, and airflow components.
- Secure Closure StructureEquipped with fastening hardware for firm closing and reliable operation.
- Suitable for Rectangular Duct SystemsDesigned for use on rectangular HVAC ducts in ventilation and air conditioning systems.
- Multiple Standard Sizes AvailableAvailable in several common sizes, with custom dimensions supported.
- Easy InstallationSimple mounting structure for quick installation on duct panels.
Applications
- HVAC ventilation systems
- Air conditioning duct systems
- Commercial building duct maintenance
- Industrial ventilation systems
- Access for dampers, filters, coils, and internal duct components
- Inspection openings in rectangular ductwork
Technical Specifications
| Parameter | Description |
| Product Name | Rounded Corner Rectangular Duct Access Door |
| Material | Galvanized Steel Sheet |
| Shape | Rounded Rectangle |
| Type | Duct Access Door / Inspection Door |
| Application | HVAC / Ventilation / Air Conditioning Systems |
| Installation | Mounted on Rectangular Duct |
| Surface Finish | Galvanized |
| Function | Inspection, Cleaning, Maintenance Access |
| Customization | Size and structure can be customized |
Standard Sizes
| Nominal Size |
| 250 × 150 |
| 380 × 250 |
| 510 × 380 |
| 660 × 510 |
Custom sizes are available upon request.






