A, B, C fire door use places
Publish Time:
Nov 17,2022


1. Class A fire doors
1) The opening of the firewall. 2) Cinemas, auditoriums, theaters. 3) The doors of each equipment room in the refuge area. 4) The high-rise ward building is near the door of the stairwell. 5) 20,000 m² underground smoke-proof stairwell. 6) Class A workshop (non-explosive hazard). 7) Atrium doors and windows. 8) Intermediate storage tank door. 9) The Class B factory buildings are adjacent to the 10kV substation (distribution) substation. 10) Transformation and distribution room, ventilation and air conditioning machine room, fire pump room, elevator machine room, generator room, oil storage room, diesel generator room, direct combustion engine room, oil-immersed transformer room
2. Class B fire doors
1) The stairs separating the first floor and the underground. 2) A door leading to an outdoor staircase. 3) Smoke-proof stairwells, closed stairwells, and front rooms. 4) The outer windows of the refuge floor. 5) KTV. 6) The door of old and young doctors. 7) Except the kitchen door of the house. 8) The doors of each equipment room of the traffic tunnel. 9) The pedestrian street faces the street door. 10) Doors separating Class C factory buildings, Class C and D warehouses from offices and lounges. 11) Fire extinguishing equipment room
3. Class C fire doors
Vertical wells such as cable wells, pipe wells, flue exhaust ducts, exhaust ducts, garbage lanes, etc.
Latest News
Classification of Steel Airtight Door
Jan 16,2023
Understanding of Steel Airtight Door
Jan 09,2023
Introduction to the role of steel fire doors
Dec 30,2022
How to Select Steel Security Fire Exit Door
Dec 27,2022
How to choose a fire door
Dec 23,2022
Quick Links


Please Enter Your Information
Copyright © 2022 Jiangyin Zhonglian International Trade Co., Ltd.