Fire and smoke damper valve facility is divided into two types of valve! Fire class: from hanging over plate damper, fire damper, fire control valve anti-smoke fire control valve, a small fire control valve ...... Features: 70 ° C can be manually shut down automatically shut down automatically reset output electrical signal. Exhaust categories: exhaust valves, smoke damper, exhaust valve remote control, remote control smoke dampers, plate discharges, leafy exhaust port, remote control leafy exhaust port, remote control multi-leaf fire exhaust port, exhaust port leafy fire ...... Features: DC24V electrical signal is turned on, you can manually open the remote control can automatically reset output turns electrical signals. Applied mechanical exhaust system is 280 ℃ damper damper liters Switzerland, usually is normally closed when the fire broke by automatic fire alarm interlock signal automatically open damper prices, along with a manual damper actuator principle, may manually open, but also in the fire control center remotely turn (ie joint control, manual control, automatic control in three ways). In order to prevent false alarms general practice fire protection system to manual mode, when the fire occurred is confirmed by the control room or field manually turned on, and the linkage exhaust fan is turned on. Swiss liter damper | l Rui Electric (certified) | damper ventilation and air conditioning provided by the liter Swiss mechanical and electrical equipment factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In liters Swiss electromechanical leadership with the staff warmly welcome all inquiries negotiations to create liter Swiss electromechanical better future.