Most high-rise and other types of modern buildings are equipped with ventilation, air-conditioning and smoke exhaust system, in the event of a fire, the pipes in these systems will become a flame, flue gas spread channel. In order to prevent the spread of the fire through the duct expansion, in the "Building Code for Fire Protection" GBJ16-87 and "Code for Fire Protection Design of High-rise Civil Building" GB50045-95 are clearly set the fire damper, exhaust valve set requirements. Fire damper used in ventilation, air-conditioning system to send and return air lines, usually open state, when a fire occurs, the pipeline gas temperature reaches 70 ℃ when the self-closing, and within a certain period of time to meet the fire resistance and fire resistance Integrity requirements, smoke from the fire effect. Exhaust valve is used in the smoke exhaust system pipe or exhaust fan suction inlet, usually was closed, when a fire occurs, the fire alarm signal manually or automatically open the valve, according to the system function with smoke, when the pipe smoke Gas temperature reaches 280 ℃ automatically shut down and can meet the fire resistance stability and fire integrity requirements within a certain period of time, smoke from the fire retardant effect.
Double Side EVA Foam Tape
Industrial Double Sided Tape,Double Sided Masking Tape,Two Way Tape,High Temperature Double Sided Tape
JIANGMEN BAOGUAN ADHESIVE MATERIAL CO.,LTD , https://www.baoguantape.com