Steel fire door national installation design standard.

     steel fire door are more numerous in the market now, so we at the time of installation, to understand the country for the installation of this door design standards, so as to protect their installation is help door, rather than a deadly fire door.

    1) first of all to understand steel fire door before installation, we must carry on the inspection, if found caused by transportation storage inappropriate at this time of door frames, door leaf warping deformation don't install, immediately to repair after before installation.

    2) when the steel fire door is vertical, the vertical degree of the front and back should be corrected by leveling or hanging line method.

    3) remember, at the time of installation of steel fire door frame must be with the building into a whole, it is better to use iron to connect to the wall, of course, at the time of installation time frame into the height of the surface to reach 20 mm, shall not be less than 15 mm.

    4) steel fire door open direction must be evacuation direction, it can ensure safe escape after the fire, the other is installed between door frame and wall must be watered cement mortar, and maintenance more than 24 h before normal use.

    5) their melting point shall not be less than 950 degrees centigrade when the hardware fittings are installed on the steel fire doors, and the hinges and pins are inserted.