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Fire door hinges are an essential part of fire doors, as they help to ensure that the door operates properly in the event of a fire. There are various types of hinges available, and they are made from different materials. Here is some information on the types and materials of fire door hinges:
- Ball Bearing Hinges: These are the most common type of hinge used for fire doors. They are made of steel and have ball bearings in the knuckles to reduce friction and provide smooth operation.
- Butt Hinges: Butt hinges are also commonly used for fire doors. They are made of steel and are available in a range of sizes.
- Continuous Hinges: Continuous hinges are often used on heavy-duty fire doors. They run the full length of the door and provide extra strength and support.
- Spring Hinges: Spring hinges are used on fire doors where self-closing is required. They are available in different sizes and strengths.
- Piano Hinges: Piano hinges are long, narrow hinges that are often used on fire doors that require additional support.
In terms of materials, fire door hinges are typically made of steel or stainless steel. Steel hinges are often coated with a layer of zinc or other material to provide protection against corrosion. Stainless steel hinges are more expensive than steel hinges but offer better resistance to corrosion and are more durable.
It is important to ensure that the correct type of hinge is used on a fire door and that it is installed correctly to ensure that the door operates properly in the event of a fire.