Installation method of steel fire door
There are some differences in the installation method between steel fire doors and wooden fire doors. It is also slightly different from the fire rating. You must pay attention to the details when installing.
First of all, when the wooden fire door is installed, the size of the door frame should be less than 20mm of the opening, and the lower foot of the door frame should be buried 20mm below the ground. The door frame should be firmly fixed with the wall, with a vertical angle. The erection and support should pay strict attention to the straightness and the same angle, and avoid planing and sawing. There should be no less than 3 fixed points on both sides of the door frame, and the spacing should preferably not be greater than 800mm.
Secondly, during the installation of the steel fire door, considering the bending deformation of the door frame, it should be supported by wooden slats in the width direction of the door frame. welding. Then make a hole in the wall in the upper corner of the door frame, pour concrete of cement, sand, and expanded perlite (1:2:5), and it can be used after the concrete is solidified.