Advantages a damper, low air leakage, airtight performance; 2, the electric current consumption is small open; 3, strong corrosion resistance and long service life; (made of stainless steel type) 4, the actuator drive flexible, feedback, interlock Signal accurate. 1. normally open damper type smoke damper 2. normally closed smoke damper 3. Remote control type smoke damper (rope-controlled) 4. Automatic reset type smoke damper Products: Electric for open multi-leaf valve, consisting of a sleeve valve equipped with German imports PS Series actuators. Within the electric actuator servo system, without reprovision servo amplifier has an input control signal (4-20mADC or 1-5VDC) and single-phase power to control operation to achieve the pressure, flow, temperature, level and other parameters to adjust . Adopts balanced valve plug structure fire dampers samples, with good valve plug stability, easy to produce vibration, low noise sensitivity, allowing the use of a large pressure difference, simple connection, which is widely used for flow coefficient, leakage requirements more strict electricity, metallurgy, petroleum, chemical industry, light industry, industrial automatic control system. Category damper installed in the ventilation, air conditioning system, the return air duct on the road, usually was turned dampers, fire when the temperature of the gas pipeline reaches 70 ℃, fusible film fuse, the valve in the torsion force automatic closed within a certain period of time to meet the fire resistance stability and fire integrity requirements, from the effects of smoke fire retardant across the valve. When the valve is closed, the output signal is turned off. Fire and smoke control valve, normally open, 70 degrees is closed, with a, but more than a telecommunications signal input dampers sales, consumer control room by remote control is off, generally used for peacetime air, fire, wind up a common duct system, fire When can control the wind up turning off unneeded rooms; normally open type smoke damper, 280 degrees fuse closed, normally open, output electrical signal, such dampers and a similar effect, but different fusing temperature, generally used in fire row smoke tube through the firewall, the flue gas temperature over 280 degrees, turn off automatic fuse, turn off the exhaust fan can be linked. Damper samples Rui Xincheng air conditioning (certified), Mountains dampers provided by Rui Xincheng Air Conditioning Equipment Co., Texas. Texas Rui Xincheng Air Conditioning Equipment Co., Ltd. (www.dzrxckt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Rui Xincheng conditioning in leadership with the staff warmly welcome all inquiries negotiations to create a better future Rui Xincheng air conditioning.