What problems should be paid attention to during the installation of Henan fire door? Henan fire door manufacturers should know that the use performance of fire doors comes from the quality problems of the fire doors themselves on the one hand, and the installation of fire doors on the other hand. If the fire doors are not installed according to the relevant standards, then their fire performance may be affected in the use process. high quality Steel fireproof window Here are some precautions for installation. 1. When installing door frames and leaves, attention shall be paid to the opening direction of the door, which must be opened in the direction of evacuation. 2. Stealing work and materials is strictly prohibited. Some construction units speed up construction. There are serious problems of cutting work and materials when installing fire doors. Some do not install door closers or sequencers; Some fire doors should be equipped with 3 hinges, and they only have 2 or 1 hinge; Some fireproof door hinges with 4 screw holes are only installed with 2 screws, reducing the fixing strength; Some even install non fireproof hardware fittings and door locks; Some do not install fireproof sealing strips; Some fireproof doors are equipped with ordinary glass or fireproof glass that exceeds the specified area, etc. It is important to know that these jerry building will be reflected in the use of fireproof doors later. Steel fireproof window Manufacturer Fire doors have special functions of fire prevention, smoke separation, fire spread suppression and evacuation protection, so they should have good airtightness. Therefore, attention should be paid to some details or sealing problems during installation.

Relevant requirements for fire protection of the door of Henan Refuge Room What kind of products are qualified when the door of Henan Refuge Room passes the fire protection? Here are some examples: 1. Filling materials: the filling materials must meet the requirements of combustion performance A1 specified in GB8624-2006. At the same time, it meets the requirements of smoke toxicity hazard classification ZA2 specified in GB/T20285-2006. 2. Material thickness: door leaf material shall be no less than 0.8mm, door panel material shall be no less than 0.8mm, door frame plate shall be no less than 1.2mm, hinge plate shall be no less than 3.0mm, reinforcement without screw holes shall be no less than 1.2mm, and reinforcement with screw holes shall be no less than 3.00mm. high quality Steel fireproof window The door of Henan refuge room 3. The adhesive shall meet the requirements of smoke toxicity hazard classification ZA2 specified in GB/T20285-2006. 4. Dimensional deviation: the height of the door leaf shall not exceed 2mm, the width of the door leaf shall not exceed 2mm, the thickness of the door leaf shall be between - 1mm and+2mm, the height of the clipping opening in the door frame shall not exceed 3mm, the width of the clipping opening in the door frame shall not exceed 2mm, and the width of the side wall of the door frame shall not exceed 2mm. 5. Geometric tolerance: the length difference between the two diagonals of the door leaf shall be less than or equal to 3mm, The distortion of the door leaf shall be less than or equal to 5mm, the curvature of the door leaf in the width direction shall be less than 2%, the curvature of the door leaf in the height direction shall be less than 2%, and the length difference between the two diagonals of the inner cutting opening shall be less than or equal to 3mm. 6. Fit tolerance: the overlap size between Manshan and the door frame is less than or equal to 12mm, the fit clearance between the door leaf and the door frame at the hinge side shall not be greater than the size tolerance specified in the design drawing, and the fit clearance between the door leaf and the door frame at the lock side shall not be greater than the size tolerance specified in the design drawing. Steel fireproof window Manufacturer The clearance between the door leaf and the upper frame shall be less than or equal to 3mm, the clearance between the double leaf and multi leaf door leaves shall be less than or equal to 3mm, the clearance between the door leaf and the lower frame or the ground shall be less than or equal to 9mm, the clearance between the binding surface of the door leaf and the side of the door frame with hinges shall be less than or equal to 3mm, the clearance between the binding surface of the door leaf and the side of the door frame with locks shall be less than or equal to 3mm, and the clearance between the binding surface of the door leaf and the upper frame of the door frame shall be less than or equal to 3mm, The plane height difference between the door frame and the door leaf is less than or equal to 1mm.

Henan fireproof door installation method The fireproof door is divided into steel fireproof door and wooden fireproof door according to the material. There are some differences in the installation method of the two fireproof doors. high quality Steel fireproof window The fire rating is slightly different. You must pay attention to the details when installing. First of all, when installing the wooden fireproof door, the size of the door frame should be 20mm smaller than 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, and perpendicular to the corner. The vertical frame and bracing frame shall be straight and at the same angle to avoid planing and sawing. There shall be no less than 3 fixed points on both sides of the door frame, and the spacing shall not be greater than 800mm. Secondly, during the installation of the steel fire door, considering the bending deformation of the door frame, it is necessary to support the door frame with wooden braces in the width direction of the door frame. The lower foot of the door frame is buried 20 mm below the ground, and then the door frame is welded with the embedded parts on the wall. Then make a hole in the wall at the upper corner of the door frame, and pour concrete of cement, sand and expanded perlite (1:2:5), which can be used after the concrete has set. Steel fireproof window Manufacturer Requirements for airtightness of fire doors: there are clear requirements for the size of the gap at each overlap of fire doors: for steel fire doors, the overlap between the leaf and the door frame shall not be less than 10mm, and the gap between the leaf and the door frame on both sides shall not be more than 4mm. The gap after the installation of the fire door cannot be too large, otherwise the airtightness of the fire door is difficult to guarantee, and it is difficult to reflect its role in restraining fire and smoke spread under fire conditions.

A brief talk on the problems encountered in the fire acceptance of Henan fire rolling shutter door 1. The curtain plate coating falls off and rusts, and the curtain plate has obvious pressure pits, concave convex, and penetrating holes. high quality Steel fireproof window The rolling shutter is a complete fire protection product. If the shutter has problems, it will directly affect the fire resistance limit index of the rolling shutter. 2. The guide rail is deformed and the curtain board is stuck or falls unevenly. The fireproof rolling shutter door generally moves along the guide rail. If the guide rail is twisted or broken, the rolling shutter door will not be able to move to the specified position, which will not achieve the effect of fire separation. 3. On the roller shutter, the lower limit fails or the limit line is wrongly connected. Steel fireproof window Manufacturer This often happens on the fire roller shutter of the atrium. Because the fire roller shutter of the atrium is sometimes installed outside the walkway of the upper floor, there is no floor under the roller shutter to close it, and a large gap is leaked, so the fire separation of the upper and lower floors cannot be reached.