FAD-B Flat Duct Access Door
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FAD-B Flat Duct Access Door

FAD-B flat duct access door is a galvanized steel rectangular inspection hatch designed specifically for flat and rectangular HVAC duct systems. This low-profile duct access panel features durable anti-corrosion steel construction and hand knob fastening design for tool-free opening and reliable sealing. Engineered for convenient duct inspection, cleaning and daily maintenance, the flat ventilation access hatch ensures simple installation and stable long-term performance. Covering multiple standard sizes and supporting custom dimensions, this rectangular duct maintenance door is widely used in commercial HVAC systems, industrial ductwork and air distribution pipeline servicing projects.
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Product Description

The FAD-B Flat Duct Access Door is designed for convenient inspection and maintenance access in HVAC duct systems. Featuring a flat low-profile structure, this access door is suitable for installation on rectangular or flat duct surfaces where regular servicing, cleaning, and inspection are required.

Manufactured from galvanized steel sheet, the product provides good corrosion resistance, structural stability, and long service life. The hand-tightened knob design allows easy opening and secure closing, making it a practical solution for duct maintenance applications.

This type of access door is widely used in ventilation ducts, air distribution systems, commercial HVAC projects, and industrial ductwork maintenance.

Key Features

  • Flat Profile DesignLow-profile structure fits well on flat or rectangular duct surfaces.
  • Galvanized Steel ConstructionMade from galvanized steel sheet for durability and corrosion resistance.
  • Easy Inspection and MaintenanceProvides a practical opening for duct cleaning, servicing, and internal inspection.
  • Hand Knob FasteningEquipped with tightening knobs for easy opening and secure closure.
  • Suitable for Rectangular Duct SystemsIdeal for flat-sided ductwork and ventilation systems.
  • Multiple Standard Sizes AvailableAvailable in a range of sizes to suit different duct access requirements.
  • Simple InstallationCompact and practical structure for easy field installation.

Applications

  • Rectangular duct inspection openings
  • HVAC duct maintenance access
  • Ventilation duct servicing
  • Air duct cleaning access points
  • Commercial building HVAC systems
  • Industrial ventilation systems
  • Air distribution duct inspection and repair

Technical Specifications

Parameter Description
Product Name FAD-B Flat Duct Access Door
Material Galvanized Steel Sheet
Type Flat Duct Access Door / Inspection Hatch
Shape Flat / Rounded Rectangle
Installation For Rectangular Duct / Flat Duct Surface
Locking Method Hand Knob Fastening
Application HVAC / Ventilation / Air Duct Maintenance
Function Inspection, Cleaning, Maintenance Access
Customization Size can be customized

Standard Sizes

odel A (mm) B (mm)
180 × 80 180 80
200 × 100 200 100
250 × 150 250 150
300 × 200 300 200
400 × 300 400 300
500 × 400 500 400
600 × 450 600 450

Custom sizes are available upon request.

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