Access Doors FR-S

Fire-rated Access Doors FR-S

Fire-rated access doors 1100°C / 120 Minutes (EN 1363-1).

To be installed on rectangular air ducts made of steel covered with a fire-resistant coating.

  1. Duct wall
  2. Intumescent gasket
  3. The aerodynamic shape of the inner GX cover limits turbulences and the accumulation of dust or dirt
  4. Steel knobs
  5. Fire rated board made of humidity resistant calcium silicate
  6. Vitreous fiber gasket (GF)
  7. Fire rated knobs made of calcium silicate
  8. Fire-retardent material

HT (high temperature) version of the METU-SYSTEM GX access door, with 50 mm thick thermal protection made of calcium silicate, fire-resistant fiber glass gasket and knobs made of  calcium silicate.
This inspection cover allows an easy access into the interior of the air-ducts for inspection and/or cleaning purposes. The fire-rated properties of the air-ducts are maintained. Intended to be installed on ventilation ducts made of galvanized steel with a fire-rated protective coating.

The FRS access door is an GX with vitreous fiber gasket end a third cover (3DE) made of a calcium silicate plate. Although its tightness has not been tested, we can assume that it is identical to the other ones (D / ATC2).

Chemical and petrochemical industry, nuclear power plants, skyscrapers, hotels, restaurants, commercial kitchens, underground garages, smoke extraction ducts, fire-resistant ventilation systems.

Delivery Times
The access doors should be ready to be dispatched approximately four weeks after having placed the order.

Tested for fires inside the air ducts


Tested for fires outside the air ducts


Tested according to the norm EN 1363-1 (Fire Resistance Tests, Part 1: General Requirements) conducted by an approved independent party. Laboratory notes available upon request. Suitable for various coating thicknesses up to the ones providing a 120 minutes protection. The above characteristics might be able to change on short notice without prior notification, and might also be modified depending on the specific characteristics of the installation.

Prices (Excel)


Installation Instructions

Fire-rated Access Doors FR-S

The resistance of the METU fire-rated access doors FR-S and FR-1 (1100 ° C / 120 Minutes) has been tested and confirmed by the company EFECTIS according to the operating procedures of the norm EN 13501-3.

For more information