Contact: Manager Lu
Q Q: 1036599661
Address: No. 8 Yangsha Road, Huilong Industrial Park, Qidong City, Jiangsu Province
Fire doors are designated by accredited laboratories of the Ministry of Economy of the Ministry of Fire. According to the new national fire door standard GB_12955-2008, which has been implemented since January 1, 2009, the fire doors have passed the fire resistance test method. And authorized signs are called fire doors.
Fire doors are divided according to material: there are steel fire doors and wooden fire doors. There are some differences in the details of the installation methods. It is also slightly different from the fire rating. Everyone must pay attention to details when installing.
First of all, when installing wooden fire doors, the size of the door frame should be less than 20mm in the opening, and the lower feet of the door frame should be buried 20mm below the ground. The door frame should be firmly fixed to the wall with a vertical angle. Stand upright, support upright should pay close attention to straight and same angle to avoid planing. There should be no less than 3 fixed points on both sides of the door frame, and the distance should not be greater than 800mm.
Secondly, during the installation of steel fire doors, considering the problem of bending and deformation of the door frame, the wooden frame should be supported in the width direction of the door frame, the lower feet of the door frame should be buried 20mm below the ground, and the door frame and the embedded parts on the wall welding. Then open a hole in the wall at the upper corner of the door frame, pour concrete, sand, and expanded perlite (1: 2: 5) concrete, and then use the concrete after it has solidified. 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, the overlap between the fan and the door frame must not be less than 10mm, and the gap between the two sides of the fan and the door frame must not be greater than 4mm. After the fire door is installed and closed, the gap cannot be too large, otherwise the sealing performance of the fire door cannot be guaranteed, and it is difficult to reflect its effect of suppressing fire and smoke spread under fire conditions.
Therefore, the width of the seam installed in the fire door must be strictly controlled. Installation according to these standards can guarantee the effective function of fire doors to a certain extent. Consumers must supervise when hiring construction units to prevent problems such as cutting corners and cutting materials, so that fire doors will not be exposed to fires. Causes casualties.
Nantong Kangye Special Doors and Windows Co., Ltd. is a professional fire door and window manufacturing innovation technology company that has been certified by the Ministry of Public Security Fire Products Conformity Assessment Center and has various qualifications for fire doors and windows. Of modern fire-resistant doors and windows production equipment, with an annual production capacity of 500,000 square meters. Welcome to buy Nantong fire door !