May 26, 2025
Aier mainly supply several types and different sizes of access door: curved/flat access door, maintenance curved/flat access door, rectangular access door and tabbed access door. The main material is galvanized steel. Mainly installed in round or square pipes, the role is to facilitate the maintenance of air pipes.
Choose from our comprehensive range of high-performance access doors:
| Product Type | Description |
|---|---|
| Curved Access Door with Self-Adhesive (CADS) | Designed for round duct systems with a built-in seal strip for airtight performance. A top choice for projects requiring curved access panels. |
| Flat Access Door with Self-Adhesive (FADS) | Flat-panel version with adhesive edge for fast sealing. Ideal for rectangular ducts. |
| Curved Access Door (CAD) | Standard pipe access door option for curved systems, available in various sizes and materials. |
| Flat Access Door (FAD) | Popular option for rectangular systems; offers solid durability and simple installation. |
| Maintenance Access Door (MCAD) | Designed for regular inspections and servicing. This maintenance access door opens easily for repeated use. |
| Maintenance Access Door – Flat (MFAD) | Flat version for ceiling or wall applications requiring quick, tool-free access. |
| Rectangular Access Door (RDAD) | A durable solution for rectangular duct access doors, widely used in commercial HVAC. |
| Tabbed Access Door (TAD) | For specialty ducts that require adjustable mounting and a cleaner interior finish. |
| Fire Rated Access Door (FRTB) | Certified fire rated duct access doors for high-temperature or fire-zone applications. |
Regular maintenance involves:
Inspection: Checking for any signs of wear, damage, or corrosion.
Cleaning: Keeping the door and frame free from dust and debris.
Lubrication: Applying appropriate lubricants to hinges and locks if necessary.
Testing: Ensuring the door opens and closes smoothly and locks securely.
Every Aier access door is designed for long-term performance and industrial-grade durability:
Made with galvanized or stainless steel
Self-adhesive edge sealing available
Multiple opening mechanisms: screw, latch, or tabbed
Fire-rated and low-leakage models available
OEM customization for size, finish, and branding
We support bulk orders, international export, and full documentation for your engineering team.
Looking for a custom pipe access hatch? We can design and manufacture based on your project requirements. Just send us your drawings or specifications — we'll get back to you within 24 hours.
✅ Custom dimensions
✅ Logo printing
✅ Packaging and labeling per your needs
✅ OEM & ODM support
Not sure whether you need a curved access panel or a rectangular duct access door? Our team of engineers and sales specialists is ready to help. Tell us your system type, material preference, and size requirements—we’ll recommend the perfect solution.
Our access doors are mainly made of galvanized steel and stainless steel. Different materials are suitable for different environments and requirements. If you have customization requirements, please do not hesitate to contact us.
Access door types include but are not limited to: conventional curved or flat access doors, fireproof access doors, waterproof access doors, thermal insulation access doors, quick-opening access doors, etc. Choose the appropriate type according to the application scenario and needs.
Yes, we can provide customized services, which can be customized according to specific size, shape, material and functional requirements.
