Understand the classification and installation methods of fire doors

Tongzhi fire doors are divided into steel fire doors and wooden fire doors according to their materials. There are some details in the installation methods of fire doors. The fire protection level is also slightly different. You must pay attention to details when installing.
First of all, when installing a wooden fire door, the size of the door frame should be smaller than the opening, and the bottom frame of the door frame should be buried in the ground. The lower frame should be firmly fixed to the wall and vertically angled. When erecting and supporting the rafters, strict attention should be paid to the straightness and angles, and planing and sawing should be avoided. There should be at least 2 fixed points on both sides of the door frame, and the spacing should not be greater than 1.
Secondly, during the installation process of steel fire doors, considering the problem of bending and deformation of the door frame, wooden beams should be used to support the door frame in the width direction, the lower legs of the door frame should be buried in the ground, and then the door frame and the wall should be connected Welding of embedded parts. Then make a hole in the wall at the upper corner of the door frame and pour concrete with cement, sand, and expanded perlite. It can be used after the concrete solidifies. Fire doors have tightness requirements
National standards have clear requirements for the size of the gaps at each overlap of fire doors. For steel fire doors, it is required that the overlap between the leaf and the door frame shall not be smaller than the two sides between the leaf and the door frame. The gap must not be larger than . The gap after the fire door is installed and closed must not be too large, otherwise it will be difficult to ensure the sealing performance of the fire door, and it will be difficult to reflect its role in inhibiting the spread of fire and smoke under fire conditions.
Therefore, the gap width for fire door installation must be strictly controlled. Installation according to these standards can ensure the effectiveness of fire doors to a certain extent. Consumers must supervise when hiring construction companies to prevent them from cutting corners and other problems, so that fire doors will not be damaged in the event of a fire. causing casualties.
If you have any questions about fire doors, we will try our best to answer them for you. For more details, please visit the official website of Shenzhen Tongxiao Industrial Co., Ltd. or consult the relevant staff