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Why do hinges need to be fireproof?

Views:0     Author:D and D Hardware     Publish Time: 2021-05-21      Origin:D and D Hardware

Fire Rated Door Hinge-D and D Hardware

Fire rated hardware is the core of fire rated doors. The hinge plays an extremely important role in the door suspension system, ensuring the normal opening and closing of the door. At the same time, hinges also play an important role in life, such as hinges used on fire doors. What happens if fire door hinges are not used for fire doors? Are hinges for fire protection necessary?

Let's analyze whether the hinge needs fire protection from these two points:


1. The difference between fireproof hinges and non-fireproof hinges

2. The necessity of fire hinges


1. The difference between fireproof hinges and non-fireproof hinges

The stainless steel fire door hinge has extremely high strength, corrosion resistance and fire resistance. Hinges of other materials are not suitable for fire doors because of their low strength, poor corrosion resistance, and low melting point.

From the perspective of fire protection, the hardware on European fire doors must pass the fire door EN1634 fire door test. It also needs to comply with the formal testing requirements of EN/CE and be certified by a third-party certification body. Fire-resistant hinges must comply with the BS EN1935 standard. The melting point of the material is not less than 800 degrees Celsius.

American fire rated door hinges must pass the test of UL 10C, and pass the ANSI/BHMA156.1 test of 1,500,000 cycles & 2,500,000 cycles.


Non-fire door hinges cannot be installed on fire doors.


2. The necessity of fire hinges

A safety standard metal fire door requirements: a door hinge with fire-resistant function and easy disassembly; a lock with a fire-proof function that can quickly open the function; a durable fire-resistant mortise lock that can withstand a fire resistance of more than 2200 lb. The door handles that can function as high temperatures; the door closer that automatically closes the door. These are the necessary door hardware that makes up the fire door. If one of them does not have fire resistance, the fire rated door is a failed fire door. In addition, it is a legal obligation to install fire door hardware on fire door. The new European standard EN 1634:2014 requires frames, door and door hardware must be tested and certified.


Consider the effect of fire on the door. This door must be able to block the fire for at least 30 minutes, and can basically withstand temperatures in excess of 1,000 degrees Celsius. The door is warped and scorched, and there is often a considerable air pressure difference in both sides of the door. Ordinary hinges will deform quickly. The Fire-rated certified hinges can be tested for 180 minutes at a temperature of 1000°C, and then over a hose flow test: a 3-minute test in which the door is repeatedly subjected to the impact test of water flow under pressure. D&D's stainless steel fireproof hinges can pass the above-mentioned US UL and CE certification tests.


ANSI Grade 1 Door Hinge.ANSI Door Hinge


Ordinary hinges are destroyed and deformed in a fire, and it is difficult for firefighters to remove the deformed door by disassembling the hinges. The fireproof hinge can maintain the function of the door for a certain period of time and speed up the fire fighting speed. The rescue speed is fast to ensure the safety of people in the building.


01 UL Hinge DDSS001-FR-4X4X3CE Door Hinge 443 1


Fire door hinges are manufactured in accordance with high standards and have outstanding performance in daily use and harsh fire conditions. They come in a variety of different finishes and have long-term durability guarantees. The fireproof hinge can be fireproof for a long time in function, which guarantees the life safety of the building personnel.D&D's fire-resistant hinges comply with UL and CE testing requirements and have the highest performance in education, healthcare, hotels, residential and commercial applications.


For more information about fire door hinges or any of our services, please click here.


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