Fire doors play a crucial role in building fire safety systems, and fire door accessories are the core elements that ensure fire doors function properly. These accessories come in a wide variety of types, each playing a unique and critical role, collectively building a solid fire defense line.
Fire locks are key safety features for fire doors. They are heat-resistant, pry-resistant, and saw-resistant. Unlike ordinary door locks, fire locks can remain locked even in high-temperature environments, effectively preventing the spread of fire through the door and preventing unintentional entry into dangerous areas. Common fire locks include aisle locks, pipe locks, and machine room locks to meet the needs of fire doors in various locations.
Fire door closers are also essential. Their primary function is to keep fire doors closed at all times. In the event of a fire, they automatically close quickly and effectively, isolating the fire and smoke and buying valuable time for evacuation. Fire door closers come in both fixed and non-fixed types, depending on the installation scenario and usage requirements. Their performance must be rigorously tested by a nationally recognized and authorized testing agency to ensure they function properly at critical moments.
Fire hinges and fire-resistant hinges, connecting the door leaf to the door frame, may seem ordinary, but they actually play a critical supporting role in the proper operation of fire doors. Made of high-strength, high-temperature-resistant materials such as stainless steel and copper alloys, they possess excellent load-bearing capacity and are able to maintain the stability and integrity of the door leaf in the high temperatures of a fire, ensuring the normal opening and closing of the fire door, without compromising the fireproofing effectiveness of the fire door due to damage to the hinges or hinges.
For double or multiple leaf fire doors, a fire sequencer is crucial. It ensures that the two or more doors close in a predetermined sequence, ensuring a tight fit between the door gaps, effectively preventing the spread of fire and smoke through the gaps, and maintaining the overall fire and smoke resistance of the fire door.
Fire latches act as an additional locking device, typically installed on the opposite leaf of a double or multi-leaf fire door. They are useful when further securing the leaf is required, providing added security and reliability.
In addition, the handles of fire doors must be resistant to high temperatures and not easily deformed, making it convenient for people to open and close fire doors on a daily basis; fire-resistant sealants such as fire-resistant strips and fire-resistant silicone are used to fill the gaps between door frames and door leaves, greatly improving the sealing and thermal insulation of fire doors and preventing smoke and heat from penetrating; cover plates are used to cover the gaps between door frames and walls, which not only improves the overall aesthetics of fire doors, but also further enhances their sealing performance.
When selecting and installing fire door accessories, strict adherence to relevant standards and specifications is essential. The model, specification, and quality of the accessories must precisely match the requirements of the fire door. During installation, ensure accurate positioning and secure installation to prevent loosening. This ensures the fire door can function properly in the event of a fire, effectively fulfilling its vital role in protecting life and property.
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