All you need to know about fire doors and smoke doors
With the development of science and experience in the construction sector and the need for more safety, the use of the appropriate type of fire doors and smoke doors will be selected according to the type of structure. For residential projects, fire doors and smoke doors should be fire resistance standards of at least 40 minutes.
Keep in mind that in some buildings with a height of more than 5 floors in Iran, the fire resistance of fire doors and smoke doors must be above 60 minutes.
Fire doors and smoke doors in industrial and infrastructure projects :
The standards of the Fire Department of Iran in industrial projects such as power plants, refineries, airports have a much higher safety. The minimum resistance of fire doors in these projects is 120 minutes. For example, in a refinery, the fire door in the stairs has a fire resistance of about 90 minutes, but the fire door of the control room must have a resistance of at least 180 minutes.
Fire doors and smoke doors in infrastructure projects such as power plants, refineries, airports, in addition to higher resistance, need more standards in all sectors, we will introduce and fully explain fire doors in infrastructure projects and all types of specialized and customized doors. which in the next article will publish by Rira Procurement and Sourcing Company.
we are fully prepared to provide fire doors emergency exit doors and with the necessary standards for infrastructure projects and sensitive areas such as refineries, airports, power plant, and control rooms in Iran
The structure of fire doors
The most important and most raw material used in fire doors is steel, which part of the resistance of the doors depends on the thickness and quality of steel used to produce fire doors. Galvanized and steel sheets used for frames and fire doors have a thickness of at least 2 mm. those items can be changed according to the specifications of the project and the place of use of the doors.
A rubber seal is another important part of the materials in fire doors and makes them resistant against fire. These rubbers are used as a sealant and close the pores of fire doors and delay fire vulnerability.
The structure of the fire door is in the form of a steel mesh in which Rockwool is placed inside the fire doors with a suitable density. It is necessary to mention the specification and importance of refractory Rockwool in fire doors, this material has the ability to fire resistance for at least two hours and to withstand temperatures of about 750°c, which, if used in a standard method, prevents the destruction of steel structures and melting in the fire.
The next part of the fire doors are accessories, which must also be fire-resistant.
Fire doors have a high weight due to the two-layer steel structure, and the first requirement of these doors is the use of fire-resistant steel hinges that make it possible to open and close fire doors in
critical situations.
Fire door handles and overhead door closer
Handles and overhead door closer are an important part of fire doors that, like other components, must be fire-resistant. This handle and restraint must have two features:
During the fire, the increase in heat should not cause the handle and overhead door closer to malfunction. First, the fire door should remain closed if it is closed, and it should prevent the spread of fire and smoke to other parts and secondly because the fire door is also used in emergency exits, it can be opened by pushing without using a by hand. Due to the high temperature or carrying the injured, it is not possible to use the hand to open the fire door in case of fire.
And the last part of the accessory is the overhead door closer, which must close the fire door after each entry and exit in any situation, so as to prevent worsening the situation and the extent of the fire.
Color and painting in fire door
Covering and painting of fire doors are done in the form of a furnace and automatic color room monitoring. The type of color is epoxy and polyester.
The type of paint coating of all fire doors has international and domestic standards and is also approved by the Fire Department of Iran.
Be aware that all products used in projects in Iran must have the NFPA80 standard and approval of the Iranian Fire Department.
Dear employer
This article covers the basic standards of fire doors in Iran. If used in sensitive places or infrastructure or security areas, higher standards are needed. If you have any questions, you cancontact Rira Sourcing & Procurement Company in Iran.
