The installation of Henan fire rolling shutter door is prone to some problems. One problem is the strength of the transmission device of the fire rolling shutter door. The strength of the roller shutter shaft is also an important parameter of the roller shutter door. At present, there are many unqualified products with this strength, The structure of the roller shutter shaft that seriously affects the use of the fire shutter door mainly refers to the depth of the roller shutter shaft and the shaft heads at both ends plugged into the steel pipe and the depth of the structural shaft head plugged into the steel pipe should be about 110 of the shaft length, and there should be two flanges and enough welds. supply Rolling shutter fire door The second problem is the depth of the guide rail. If the depth of the guide rail is not enough and the structure and materials are improper, once encountering a fire, the door curtain is easy to detach from the guide rail and cannot play a role in fire prevention. Rolling shutter fire door Manufacturer The third problem is the pre rolling of the fire rolling shutter door. The fire rolling shutter door, especially the steel fire rolling shutter door, is relatively heavy, so a circle of pre rolling will be reserved on the reel to reduce the tension of the curtain weight on the screws. Prevent a curtain from cracking.

Henan fire door refers to the door that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. supply Rolling shutter fire door It is a fire compartment with certain fire resistance, which is located in fire compartment, evacuation staircase, vertical shaft, etc. In addition to the function of ordinary doors, fire doors can also prevent the spread of fire and smoke, which can prevent the spread of fire within a certain period of time and ensure the evacuation of people. Henan fire doors are certified by the Ministry of Economic Affairs of the Ministry of Fire Protection. According to the new version of the standard for fire doors GB_12955-2008 implemented on January 1, 2009, those who pass the fire resistance test of fire doors and have obtained the registration certificate and authorized logo issued by the Bureau of Standards and Inspection of the Ministry of Economic Affairs are called fire doors. Rolling shutter fire door Manufacturer The fire door defined in the American NFPA and IBC codes is "any combination of fire door leaves, door frames, hardware and other accessories that can jointly provide a certain degree of fire protection at the opening."

Henan fire door selection method Fire door is particularly important as a family fire protection, but when you buy low-quality fire door, the fire door is no longer fireproof, what should you do? The fire department of our city investigated and destroyed a batch of inferior fire doors with honeycomb paper instead of fireproof filler materials. Here, the firefighters introduced some tips on how to select and purchase high-quality fire doors. According to the regulations, steel and wood fire doors can be divided into Class A, Class B and Class C according to the fire resistance limit. The fire resistance limit requirements are 90 minutes, 60 minutes and 30 minutes respectively. In addition, the wood used to make wood fire doors needs drying and flame retardant treatment, and the hardware used must also be fire hardware. supply Rolling shutter fire door There are five ways to choose high-quality fire doors: one is to check the appearance, high-quality steel fire doors are firmly welded, and the welding spots are evenly distributed; The external surface shall be sprayed flat and smooth; There shall be product mark, quality inspection mark and quality certification (approval) mark at the specified position. Rolling shutter fire door Manufacturer The qualified wooden fireproof door shall be intact without damage, and the surface shall be clean without plane marks, burrs and hammer marks; Corner cutting and butt joint shall be tight and flat. The second way is to check the figures. The overall dimensions of qualified products should be less than or equal to the overall dimensions in the sample description, the door leaf thickness should be greater than or equal to the door leaf thickness in the sample description, the door frame sidewall width should be greater than or equal to the door frame sidewall width in the sample description, and the overall dimensions of fire-resistant glass should be less than or equal to the overall dimensions of fire-resistant glass in the sample description, The thickness of fireproof glass shall be equal to or greater than the thickness of fireproof glass in the sample description.

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. supply Rolling shutter fire door 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. Rolling shutter fire door 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.

Henan fire door is an important part of fire fighting equipment. Fire door is an important part of fire fighting equipment and an important part of social fire prevention. Therefore, the quality and use of fire door is the key to the success of fire prevention. supply Rolling shutter fire door The fire resistance limit of Class C fireproof door is 0.6h) 1. The inspection door on the wall of equipment tube well, ventilation duct and garbage duct shall be Class C fireproof door. 2. The front door of the garbage way shall be Class C fireproof door. 3. When the cable shaft and pipe shaft are set in the front room of the smoke proof staircase and the shared front room, the inspection door on the shaft wall shall be Class C fireproof door. 4. The door connecting the substation and distribution substation should be Class C fireproof door. The door directly leading to the outdoor of the substation shall be Class C fireproof door. 5. The cable well and pipe well shall be separated from each other every 2~3 floors by incombustible materials equivalent to the fire resistance limit of the floor. The inspection door on the shaft wall shall be Class C fire door. 6. The garbage hopper shall be made of incombustible and corrosion-resistant materials and can be closed and sealed by itself; Garbage hoppers of high-rise buildings and super high-rise buildings shall be located in the front room of the garbage chute, which shall be equipped with Class C fireproof doors. 7. The telecommunication room shall adopt outward opening Class C fireproof door with a width of more than 0.7m. 8. The oxygen busbar room with the oxygen delivery capacity not exceeding 60m3/h can be set in the user's workshop with the fire resistance rating not lower than Grade III and close to the external wall. The wall with the height of 2.5m and the fire resistance rating not lower than 1.5h and the Grade C fire door should be used to separate it from other parts of the workshop. 9. The partition wall of the collection warehouse and exhibition room shall be non combustible. The compartments in the fire compartment shall be separated by partition walls with a fire resistance rating of not less than 3h and Class B fire doors. The enclosure structure of closed shaft shall be non combustible and Class C fireproof door. 10. The fire resistance limit of partition walls between production rooms with explosion risk shall not be less than 1.5h. Rolling shutter fire door Manufacturer The door is Class C fireproof door. 11. When the oxygen generation station building or liquid oxygen gasification station building and oxygen filling station building are arranged in the same building, the noncombustible partition wall with a fire resistance rating of not less than 1.5h and Class C fire door shall be used, and they shall be connected through the walkway. 12. The doors on the partition walls between the oxygen compressor room and the bottle filling room, as well as the purification room, the oxygen storage bag room, the oxygen storage tank room, the liquid oxygen storage tank room and other rooms shall be Class C fireproof doors.