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- Structure: Fire door hinges are typically made of high-strength materials, such as stainless steel, and have a specific design that allows them to withstand the high temperatures and pressures generated during a fire. They often have a thicker and longer knuckle than regular door hinges, which provides additional support and stability.
- Fire Rating: Fire door hinges have a specific fire rating that indicates the amount of time they can withstand the high temperatures and pressures of a fire before failing. The fire rating is typically expressed in minutes or hours and should meet or exceed the local building codes and standards.
- Self-Closing Feature: Many fire door hinges also have a self-closing feature that allows the door to automatically close in the event of a fire, which helps to prevent the spread of flames and smoke.
- Lubrication: Fire door hinges require proper lubrication to ensure they continue to function properly and avoid wear and tear. The lubrication used on fire door hinges should be able to withstand high temperatures and be suitable for use on fire-rated doors.
- Independent Testing: Fire door hinges are tested and certified by independent testing agencies to ensure they meet safety standards and can withstand the high temperatures and pressures generated during a fire.
- Size and Weight: Fire door hinges come in different sizes and weight capacities to support the size and weight of the door. Using hinges that are too small or weak can compromise the integrity of the door and its ability to prevent the spread of fire.
- Compliance with Building Codes: Fire door hinges must comply with local building codes and standards to ensure they are safe and effective in preventing the spread of fire. It’s important to choose hinges that meet or exceed the local building codes and standards for fire-rated doors.