Tunnel doors

At least 120 minutes fire resistance

Available as revolving or sliding door

Merford has developed a fire-resistant tunnel which fulfils the requirements of the Directorate-General for Public Works and Water Management. These requirements, which are a lot stricter than the NEN standards, imply that the door has to be fire-resistant for two hours at a temperature of 1350 °C and a very rapid increase in temperature. The MHC type revolving door meets the 120 minutes fire resistance requirement in accordance with the Directorate-General for Public Works and Water Management time temperature curve.

MHC revolving tunnel door

Flame-tight: 134 minutes

Thermally insulated against radiation: 134 minutes

Smoke-tight in accordance with NEN 6075: 201 minutes

Merford tunnel doors are also available as sliding doors.