How to identify different levels of fire doors?
Update:Jan 18,2024
Summary:How to identify different levels of fire doors? The difference in appearance of different levels of fire doors is not obvious and difficult to distin......
How to identify different levels of fire doors? The difference in appearance of different levels of fire doors is not obvious and difficult to distinguish, but as engineering practitioners, we need to learn to judge. There are three common methods to distinguish the grade of fire doors on site. A, check the fire door acceptance data. Check the product inspection report, certificate of approval, production license, fire door electronic identity and other fire inspection materials when the fire door leaves the factory, which indicate the material and fire door grade. Second, check the fire door nameplate Check the manufacturer's nameplate on the fire door frame, which indicates the name, address and contact information of the manufacturer, as well as the material and fire rating. Third, measure the specifications of fire doors In order to further confirm the correctness of the grade of the fire door, it can also be verified by measuring the specifications of the fire door. The thickness of steel Grade A doorframes is generally 12cm, and the thickness of door leaves is 5 cm. The thickness of steel B-frame is generally 11cm, and the thickness of door leaf is 4.5cm；. The thickness of steel C-class doorframes is generally 10cm, and the thickness of door leaves is 4.2cm；. The thickness of wooden Grade A doorframes is generally 10cm and the thickness of door leaves is 4.5-5.5 cm. The thickness of wooden B-frame is 10cm, and the thickness of door leaf is 4-5 cm. The thickness of the wooden C-class door frame is also 10cm, and the thickness of the door leaf is 4cm.
English
简体中文
France
España
العربية
