What is the difference between the normally open and normally closed fire doors of Henan fire doors? The differences between the normally open and normally closed fire doors are as follows: 1. Different meanings. The normally open fire doors are usually open, and they are automatically closed by the control system only in case of fire. It is generally used in the passage or corridor of public places. major Fire resistant rolling shutter door Normally closed fire doors are closed under normal conditions and in case of fire, and need to be pushed open when someone walks around, so as to prevent smoke and fire and prevent the spread of fire. 2. The price is different, and the price of the normally open fire door is higher, and the system is strong. The price of normally closed fire doors is relatively low. Henan fireproof doors and windows 3. The composition is different. The normally open fireproof door consists of door leaf, door frame, door closer, sealing strip, release switch and other parts. The normally closed fireproof door is equipped with sequencer in addition to the above parts. 4. The control mode is different. The normally open fire door is controlled by the fire door release switch. The normally closed fire door does not need to be set with electric automatic control. It is mainly closed by the door closer and sequencer, that is, mechanical. Precautions for Henan fire door fire door 1. The fire door shall be installed according to the type of fire door used, and the appropriate installation method shall be adopted. 2. The door frame of the fire door can be fixed with the wall by expansion bolts, or iron parts can be embedded at the opening when building the wall, and welded firmly with the door frame connector during installation. 3. No matter what kind of connection mode is used between the door frame and the wall, there should be no less than 3 anchor points on each side, and they should be firmly connected. Henan fireproof doors and windows 4. When installing the fireproof door, it should be aligned and hoisted. After the size is appropriate, it should be temporarily fixed, corrected and adjusted, and then it can be connected and anchored. 5. The sliding door shall be flexible after installation; The side hung door is easy to open and tight and firm to close. Fire resistant rolling shutter door Price Henan fireproof doors and windows 6. Door closers must be installed on fireproof doors, and sequencers must be installed on opposite doors. 7. The handle, fire lock and other hardware accessories on the fire door must be complete. 8. It is required that the clearance from the ground plane shall not be greater than 5mm.

Do you know these characteristics of Henan fire rolling shutter door? Fire rolling shutter door is a rolling shutter door used to prevent the spread of fire. It is obviously different from ordinary rolling shutter door. There are also some characteristics that few people know. The manufacturer of fire rolling shutter door will tell you. major Fire resistant rolling shutter door First of all, the data transmission of the fireproof rolling shutter door is very fast and reliable. Yes, the fireproof rolling shutter door is not the kind of rolling shutter door that can only rise and fall as we see in the street shops. The manufacturer of the fireproof rolling shutter door has installed an integrated bus inside it, so that data can be transmitted. After receiving the fire information, the rolling shutter will immediately conduct automatic information processing and take emergency fire prevention measures. Henan fireproof rolling shutter door Secondly, the fireproof rolling shutter door has standby power supply. In case of a fire, the common power supply is cut off, and the standby power supply can still be opened normally, so as to ensure the lifting of the fireproof rolling shutter door, avoid the danger caused by emergencies, and effectively improve the safety factor. Henan fire shutter door Again, the manufacturer of fire shutter door has installed smoke and temperature sensing devices and equipment for it. Once a fire occurs, the device can quickly distinguish and detect, give an alarm and take fire prevention measures to remind people to control and defend, and reduce safety risks. Fire resistant rolling shutter door Price In addition, Henan fire rolling shutter door also has a manual operation device. Generally, the fire rolling shutter door is controlled by the power supply, but in the event of a fire and the power supply is cut off, the controller can automatically identify and quickly drop manually to play the role of fire protection.

Whether Henan fireproof door should be made of wood or steel? I think that many people's understanding of wooden fireproof door is still in the process of questioning whether wooden fireproof door can be safe against fire. There is no need to talk about whether steel fireproof door or wooden fireproof door is better. Usually people subconsciously think that steel fireproof door is better than wooden fireproof door. major Fire resistant rolling shutter door According to the Code for Construction Quality Acceptance of Decoration Engineering? GB50210-2001? As far as wood fire doors are concerned, they belong to special doors. Therefore, wood fire doors can not only provide fire safety, but also are widely used in various industrial buildings and some public buildings because of their elegant appearance design, convenient installation and good decorative arts. But it is also beautiful and generous. In the final analysis, what about the wooden fire door with fire safety characteristics? Which is better, steel fire door or wood fire door? Let's have a look at their advantages and differences: wooden fireproof doors refer to those doors whose fire resistance rating exceeds the requirements of GB50045-95? Code for Fire Protection Design of High rise Residential Industrial Buildings with wood or wood handicrafts as door frames, door frame framework drawings, door frame control panels. Fire resistant rolling shutter door Price Wooden fireproof doors are divided into full panel and half glass series products, as well as specifications and models of single and double leaves.

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. major Fire resistant rolling shutter 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. Fire resistant rolling shutter door Price 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."