CE Certified Galvanized Steel Fire Damper for Inert Gas Fire Suppression System Fire Dampers

A fire damper is a device installed on the supply and return air ducts of ventilation and air conditioning systems. It normally remains in an open state, but when a fire occurs and the gas in the duct reaches 70 ℃, it closes automatically. Within a defined period, it satisfies the requirements for fire resistance stability and integrity, providing smoke isolation and fire prevention. The range includes gravity fire dampers, fire control valves, fireproof vents, airtight fire dampers, smoke dampers, electronic self-control smoke dampers, and other variants.

• Before installation, check the valve's appearance quality, control performance, and valve action. Confirm it operates normally before drilling flange connection holes for installation.
• During installation, ensure the valve body does not deform and that the valve opens and closes flexibly and reliably after installation.
• The valve body may be installed vertically or horizontally; in either case, its blades must be parallel to the ground.
• Pay attention to the direction and position during installation. The fuse (melting plate) must be in contact with the airflow before the blade shaft (i.e., located on the windward side of the blade). When installing the self-weight fire damper, observe the airflow direction sign and do not install it inverted.
• Reliably fix the valve in its set installation position to ensure its working performance is not affected by pipeline deformation or collapse during a fire. Install a lifting bracket if necessary.
• For fire dampers with air volume regulation, adjust the valve opening during installation.
• When the long side or diameter of the valve body is ≥ 630 mm, it must be lifted independently to avoid pipeline deformation affecting the flexibility and reliability of valve opening and closing.
• Maintain a clear space of < 200 mm on the side of the valve installation operating device and the side where the spring is installed, for operation and maintenance.
• When using a remote control operation device, protect the steel wire rope with a 20 mm refractory material tube. The bending radius must be less than 200 mm with no more than three bends. The maximum length of the steel wire rope generally does not exceed 6 m.