Publish Time: 2020-05-19 Origin: D&D Hardware
The fire door hinge is the center of the fire door suspension system. It is responsible for opening and closing the door for daily use. It can withstand the flame temperature in the event of a fire, ensure the functionality of the fire door, and protect people from using the fire door to escape. The fireproof hinge not only plays an extremely important role in the door suspension system but also ensures the normal opening and closing of the door. At the same time, it also plays a very important role in protecting life. For example, the fire-rated door hinge for fire-rated doors.
Here we analyze the particularity of fireproof hinges:
1. The Material specialty of the fireproof hinge
2. The importance of the fire hinges
3. Mandatory of the fireproof hinge
1. The Material specialty of fireproof hinge
From the material-the stainless steel material of the fire door hinge has extremely high strength, corrosion resistance and fire resistance.
From the fire resistance capability-the hardware on the European-style fire door must pass the fire door test EN1634 together with the fire door. It also needs to meet the EN / CE form test requirements and be certified by a third-party certification body. Fireproof hinges must meet the BS EN1935 standard. The melting point of the material is not less than 800 degrees Celsius.
American fire door hinges must pass the ANSI / BHMA156.1 test and also pass the opening and closing test 2,500,000 times.
Common hinges have low strength and poor corrosion resistance. Due to the low melting point, it is difficult for non-fire door hinges to meet the test conditions of fireproof hardware, which is not suitable for fire doors.
2. The importance of fire hinges
In terms of importance-the biggest advantage of the fire rated door hinge is that it will not be deformed under high-temperature environment, and the structural strength is large. It can normally open and close the fire door when a fire occurs, ensuring the safety of the life of the building personnel. The fire hinge can also keep the door function for a certain period of time, which speeds up the rescue of firefighters.
3. Mandatory of fireproof hinge
From the legal point of view-take the United Kingdom as an example, except that the hardware on the fire door must pass the fire test EN1634 together with the fire door. It must also comply with the formal testing requirements of CE / EN and certified by a third-party certification body before it can be used for fire doors.
According to the British fire protection regulations, in addition to complying with the BS EN1935 standard, there are more detailed regulations on hinges on fire doors:
3-1. There must be measures for long-term maintenance and replacement if damaged.
3-2. It is recommended not to use ascending hinges and spring hinges
3-3. The size of the screw used for the wooden door should not be less than 3.8mm, and the length should not be less than 30mm
3-4. The torque resistance generated by the 4.2 hinges should be between 2Nm and 4Nm.
3-5. The specifications are in accordance with EN1935.
3-6. The melting point of the material used is not less than 800 degrees Celsius.
3-7. When calculating the use of the door closing device, the increased load of the hinge must be considered, etc.
By understanding the particularity, importance, and necessity of fire door hinges in buildings, it is ensured that fire doors effectively play a protective role in the event of a fire. The fire door hinge is the center of the fire door suspension system. It is responsible for opening and closing the door for daily use. It can withstand the flame temperature in the event of a fire, ensure the functionality of the fire door, and protect people from using the fire door to escape. D & D's fireproof hinge is made of Grade 304/316 stainless steel. It meets UL and CE test requirements and can still work normally and allow fire doors to be opened and closed normally. It has the highest performance and is suitable for education, healthcare, and hospitality, residential and commercial applications. A professional team can provide the complete hardware matching solution.
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