Duct damper manufacturers product quality requirements embodied in three aspects: the amount of air leakage around the valve under specified test conditions of pressure, air leakage test piece per unit area is not more than 700Nm3 / (h · m2), duct dampers Latest offer in order to test the performance of the valve closed after the closure. Temperature sensor operational performance test of fire dampers, exhaust valve temperature sensing element, duct dampers are the latest offer by the constant temperature water bath, a predetermined temperature of the oil bath, through no action and action and test the temperature whether it can according to the requirements of Close accurately. Close Close reliability test on the test stand operation 250 times, low-cost marketing Shandong duct damper manufacturers specimen should be able to close the open position flexible and reliable, all parts should be no significant wear, deformation and damage affecting its sealing performance . In order to test the reliability of closure. Our company is the Texas fire products sentinel manufacturers, professional production of fire dampers, smoke dampers, exhaust valves, fire fans and other products, all through the National Fire Testing Center, FH-FVD2 damper Features: usually always open , damper prices, fuse action temperature 70 ℃. When the temperature of the air inside the duct reaches 70 ℃, fusible film fuse, the valve automatically closes under the force of the torsion spring. When the valve is closed, the output off signal. Manually shut down, manual reset opening. PY-SD PY-BSD exhaust valve exhaust valve remote control Features: DC24V electrical signal can quickly open the valve. Manually open. Output Enable signal, Wuhai damper, exhaust fan interlock. Manual reset closed. PY-BSD exhaust valve can be opened manually remote control, remote control manual reset closed. Duct damper manufacturers product quality requirements embodied in three aspects: the amount of air leakage around the valve under specified test conditions of pressure, air leakage test piece per unit area is not more than 700Nm3 / (h · m2), stainless steel fire dampers, air tube dampers latest offer in order to test the performance of the valve closed after the closure. Temperature sensor operational performance test of fire dampers, exhaust valve temperature sensing element, duct dampers are the latest offer by the constant temperature water bath, a predetermined temperature of the oil bath, through no action and action and test the temperature whether it can according to the requirements of Close accurately. Close Close reliability test on the test stand operation 250 times, low-cost marketing Shandong duct damper manufacturers specimen should be able to close the open position flexible and reliable, all parts should be no significant wear, deformation and damage affecting its sealing performance . In order to test the reliability of closure. Wuhai damper | Rui Xincheng air conditioning | damper effect is provided by the Texas Air Conditioning Equipment Co., Ltd. Rui Xincheng. Wuhai damper | Rui Xincheng air conditioning | damper effect Rui Xincheng Texas Air Conditioning Equipment Co., Ltd. (www.dzrxckt.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: Cui.