FH-WFSDC features a damper for the ventilation system, 70 ° C the valve automatically closes. 2, for the exhaust system, 280 ° C the valve automatically closes. 3, manual reset, close the damper specifications, self-locking device. 4, the opening angle (0-90 ° C) can be adjusted. 5, fusible lever action after a fire alarm signal output. 6, manual shutdown, open hooks, output off signals. Features 1, with automatic locking device, when the high temperature valve spring failure, the valve will not open under the effect of heat pressure. 2, electrical equipment installed in the executive bodies. Description usually was normally closed, fire, signals sent by the control center, DC24V input, agency action, the valve opens smoke damper models, the valve can be manually opened and closed. Automatic smoke damper action after electrically reset. Control voltage is DC24V, micro switch contact capacity AC380V, 3A solenoid operating current 0.3A. Interlock control and related equipment. Damper (70 ℃, 280 ℃) otherwise: Fire and smoke damper valve plate discharges leafy exhaust port outlet pressure delivery outlet fire leafy outlet pressure delivery outlet pressure outlet a principle, Uses damper is adjustable on the basis of the valve to increase the temperature control device. Usually was turned on, when the fire broke out, manual, automatic temperature fuse quickly close the valve, pull open the valve manually reset. Mounted on the fire safety requirements have ventilation, air-conditioning system piping. 2, the operating principle of the usual devices, fuses stuck valve stem tip axis (blade shaft) fork on the plate, so that the valve is normally open state. After the fire, the temperature rose to the pipeline flow easily blown fuse, when the temperature fuse fusible sheet, stem Jibei spring driven off the split plate, valve shaft is rotated by the torsion spring acts to close the valve. Normally, To adjust the air volume can be adjusted through the valve opening and valve shaft (blade shaft) linkage handle, fix its position by the time the mother butterfly meet the requirements. Contact with the handle of the fork system have rings of teeth to prevent slippage after engaged to keep the valve opening rate setting unchanged. According to user requests for additional electrical output device closure (cam, micro-switches, terminals, etc.) become fire control valve. 3. Installation Notes: Installation should note the direction of flow, so that the hot air in contact with the fuse first blade shaft. Reset dampers sales, the first royal top hat, pull out the fuse. Dress fusible sheet, installed fuses. So that the stem tip insert fork, then it is set valve opening. Damper model | damper | Rui Xincheng air conditioning provided by the Texas Air Conditioning Equipment Co. Rui Xincheng. Texas Rui Xincheng Air Conditioning Equipment Co., Ltd. (www.dzrxckt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Rui Xincheng air conditioning and you hand into the brilliant, for a better future!