FSD (F) -70 fire control valve suitable fire control valve applied to fire safety requirements of ventilation and air conditioning system, when the disaster occurred, the temperature fuse in the fuse 70 degrees fusible ring. The valve is closed, exhaust system for the operation of fire dampers fuse at 280 degrees. The valve is closed, exhaust system for the operation of fire dampers fuse at 280 degrees. Valve closed, cutting off the fire and smoke spread along the duct channel, the valve blade can be adjusted in the range of 0-90 degrees. Function (1) temperature of 70 degrees fuse action, the valve closes. (2) manually turned on or reset. (3) to manually change the opening angle of the blades. (4) According to the system requirements, increasing numbers of telecommunications equipment operation and fire interlock system or other systems. PFSD (W) 24 / 0.7-280 smoke damper suitable exhaust systems used in piping or the inlet of the exhaust fan, and when the fire broke out, the operating device in the power supply DC24V or manually open the valve action performed smoke, when the exhaust stream temperature up to 280 degrees, the temperature fuse action, the valve automatically shut off airflow. Function (1) element that emits smoke fire control center DC24V power output, so that the valve is open. (2) manually open the valve. (3) Manual reset. (4) when the fuse action temperature of 280 degrees, re-close the valve. (5) valve operation, the output electrical signal, and fire system interlock. The duct FSD- (J) 24 / 0.7-70 smoke dampers smoke fire protection requirements applicable for use in ventilation and air conditioning system, when the fire broke out, the operating temperature of the fusing device, the control center DC24V power or manually under the action of the action, The valve is quickly closed, cutting off the fire and smoke spread along the duct channel. Function (1) airflow 70 degrees, the temperature fuse action, the valve closes. (2) the control center DC24V power output, so that the valve is closed. (3) Manual cable so that the valve is closed. (4) The manual reset. (5) of the damper opening of the blade can be manually changed in the sub-file adjustment 0-90 degrees. (6) the valve action output electrical signal, interlocking with other systems.