Access Doors


The different types of METU access doors allow an easy access into the interior of air-ducts for inspection and maintenance while keeping as much as possible their characteristics. This last point is especially important for insulated ducts for example.


Access Doors for Non-insulated Rectangular Ducts

 -  RD Access Doors
 -  GX Access Doors which protrude less outside the air-duct and need less space to install and operate

Access Doors for Rectangular, Insulated Air-ducts

 -  Insulated Access Door IRD-2,-3,-4
 -  Insulated Access Door IRD-3DE with 3rd cover
 -  Insulated Access Door IRD-3PL with 3rd plate
 -  Insulated Access Door IRD-DW1 for double-wall and PAL ducts
 -  Insulated Access Door IRD-DW2 for double-wall ducts with a very thick insulation

Access Doors for Round, Non-insulated Ducts

 -  RRD Access Doors for Round Ducts

Access Doors for Round, Insulated Air-ducts

 -  Insulated Access Door IRRD-3DE with 3rd cover
 -  Insulated Access Door IRRD-3PL with 3rd plate
 -  Insulated Access Door IRRD-DW1 for double-wall round ducts
 -  Insulated Access Door IRRD-DW2 for double-wall round ducts with a thick insulation

Plastic Access Doors

 -  KRD Access Doors for ducts made of PVC, PE, PP and PPs
 -  KRRD Access Doors for round ducts made of PVC, PE, PP and PPs

Special Applications

Access Doors on Fittings

Access doors for air-ducts in commercial kitchens

Lockable Access Doors

Access doors with nuts (machine guidelines)

Outside Installation


Problematic Case

Technical Information

Selection-Help Form


Liquid and Grease-tight Access Doors


Opening Dimensions

Opening dimensions according to the duct-Ø


Knobs (protected design)

Stainless Steel Access Doors

Aluminum Access Doors

Operating Pressures


Material Thickness

Electrostatic Discharge


Sound Insulation


Retaining Cable


Made by METU in Germany