Type-B fire door glass door can be used, 1. Fire prevention time is different, Class A 1.5 hours, class B 1.2 hours 2. Installation parts are different, this should refer to the fire protection technical specifications, generally, Class A fire doors are installed on firewalls or entry door of high-rise buildings (meeting certain conditions), and type-B fire door are usually installed on closed staircases and smoke-proof staircases. You can choose Class A or Class B glass fire doors, or steel wooden fireproof door, with glass window on the door leaf.
Class B waterproof door is 1.2 hours. It can be made of laminated or fire glass. You can choose qualified manufacturers to customize it. There are fire doors made of glass, few manufacturers are qualified, and type-B fire door are made of glass.
Type-B fire door the glass with glass needs to be insulated fireproof glass, and the fire resistance time should be 1.0 hours. The glass size should be within the scope of the inspection report to be used. The type-B fire door with glass is generally access door, it is convenient for both parties to pass and observe.
