Xin Feng air conditioning, flue damper, Langfang damper

Xin Feng air conditioning, flue dampers, fire dampers provided by Langfang Xin Feng air conditioning. We are a city in Shandong Xin Feng HVAC Equipment Co., Ltd. (www.pyfj888.com) at: Shandong Dezhou specializes in: fans, dampers, air, fresh air units Xin Feng to introduce you to the construction dampers with fan, exhaust fan Union lock. 2 valve operating mechanism side should have a clear space of not less than 200mm to facilitate maintenance. 3 valve must be checked before installing the valve operating mechanism is intact, the action is flexible and effective. 4 dampers should be installed in duct segments close to the wall or floor, the fire dampers on both sides of the partition wall from the wall surface should not exceed 200mm, damper piping and insulation materials within the scope of both sides of the 2.0m should be non-combustible material. 5 dampers should set up a separate hangers to prevent pipe deformation affect its performance in the event of fire. 6 damper should be installed in the fuse link towards quality fire hazard requirements of the larger side of the damper mass damper detection requirements are generally reflected in aspects: Action Performance Test temperature sensor sense of fire dampers, exhaust valve temperature components, respectively, by the provisions of a water bath, oil bath temperature 280 ° smoke damper, through no action and action test, testing whether it can accurately closed at the required temperature. Close reliability test on the test stand close operation 250 times, specimen should be able to close the open position flexible and reliable flue damper, the parts should be no significant wear, deformation and damage affecting its sealing performance. In order to test the reliability of closure. Salt spray test specimens salt box will be sprayed salt spray test, the specimen shall be securely closed from the open position, the valve in order to test the actual project corrosion resistance.