PYF-P-1A smoke damper characteristics: 1. Smoke damper usually was normally closed when the fire smoke detector signal sent by the control center after the standard input DC24V Fire dampers, actuators solenoid action, the valve automatically opens the fire dampers, smoke out the exhaust fan starts When the valve when the temperature reaches 280 ℃, fuse action, the valve closes, serve to prevent the fire from spreading along with the duct. Manual reset the valve action. 2. Control voltage DC24V, micro switch contact capacity AC380V, 3A, solenoid operating current 0.3A. 3. Smoke damper control and related equipment can be interlocked. Description: PYF-P-1A (near the fire damper control manufacturers, NC) installation of fire dampers in the central air-conditioning duct system, the best to use, works extremely fluxing temperature control, the use of gravity and spring the role of institutions close the valve. When a fire occurs, the flame duct invasion, high temperature melting fusible alloy valves, or to make memory alloy deformed the valve automatically closes for the duct and the fire district throughout the occasion. Fire dampers wholesaler | l Swiss Electromechanical | Fire dampers provided by the liter Shanxi Rui HVAC Electrical Equipment Factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. L Swiss leader in mechanical and electrical staff warmly welcome all inquiries negotiations to create liter Swiss electromechanical a better future.