Fire door requirements standardize the three steps of fire door installation

With the continuous development of science and technology, fire doors have entered our lives and brought us more security of life. But about what the government's requirements for fire doors mainly include, most people don't know very well. Today I will introduce to you the requirements and specifications of fire doors, and the precautions when installing fire doors.

Fire door requirements specification

1. Fire doors can be divided into three different types according to different levels, they are:

â‘  The main purpose of the Class A fire door is to prevent the expansion of the fire house. This type is usually a full steel door. It can be protected for about 70 minutes in the event of a fire house.

â‘¡ Class B anti-theft door, the main purpose is to prevent the spread of the fire house, which is made of all-steel material, and there is a small glass window specially designed on the door, which can protect for about 50 minutes when the fire house is set on fire.

â‘¢ Class C fire doors. Among all the fire doors, a part of them are made of wood materials, and all of them belong to Class C fire doors. There is a small glass window 5mm thick on the door. When the fire house is set on fire, it can be protected for about 35 minutes.

2. Due to different materials, fire doors can be divided into two types:

â‘  The first is a wooden fire door. Although this type of door uses wood materials, a layer of fireproof coating will be added to its surface, and some wood fireproof doors also have a layer of rubber veneer, which can improve the fire resistance of the door.

â‘¡ The second is the steel fire door. This kind of fire door adopts ordinary steel plate as the material, and then put the refractory material in the middle of the door panel, which can effectively prevent the spread of fire.

Three steps of fire door installation

1. First, make a mark on the door frame and mark the position line. According to our design, the required size, the direction of the door, and the elevation are clearly determined, so that it is conducive to the next step.

2. Secondly, the door frame must be erected. Here, the fixing plate under the original door frame needs to be removed. If the height of the door frame is too high, if it is more than 30mm above the door leaf, you need to make a groove on the ground for installation. At this time, it is necessary to ensure that the upper and lower dimensions of the frame mouth are approximately the same, and there will not be too much error.

3. Then the door will be installed, and the gap around the door frame will be repaired with cement mortar to ensure that it can be combined with the wall. After it is solidified, the wall is painted and the wall Body painting.

Editor's conclusion: The requirements and specifications for fire doors are now clear. According to the different fire resistance, they are divided into three grades of A, B and C, which can be selected according to their actual situation. In addition, when installing a fire door, you need to mark the required size of the door to facilitate better installation.

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