Airtight Motorized Air Damper

HY-F series air flow control damper is generally composed of frame, blade, blade shaft, bearing, coupling rod, rubber sealing element and drive device, etc. Among them, the drive device has three types of hand operated, air-operated and electric control. Moreover, the main types are hand operated and electric control.
1. The frame is welded with qualified galvanized steel plate with thickness of δ=2mm, which is formed by special rolling machine. In the welding spot place, it is coated with epoxy resin antirust paint after removing oil.
2. The blade is compounded with double-deck qualified galvanized steel plate with thickness of δ=1mm, which is formed into corrugated shape by special rolling machine and is spot welded together. It is of strong rigidity and strength, besides, it has the performance of bearing high wind speeds and static pressure.
3. The coupling rod is cold drawn with qualified carbon structural steel 45#. It has good corrosion resistance with the process of galvanizing or chroming in the surface.
4. The blade shaft is cold drawn with qualified carbon structural steel 45#. It has good corrosion resistance with the process of galvanizing or chroming in the surface. It is shaped into square of 10*10mm and connects with blade firmly without any slip.
5. The bearing, which is made of qualified sintered bronze, is oil bearing. It can be uninterrupted lubrication and has these advantages of small friction torque, long life and maintenance-free, etc.
6. It is air flow control damper of low leakage type. There is special synthetic rubber sealing element in the edges of blade and up & down sides of frame. So it can ensure that the sealing of blade is reliable and low leakage when the air damper is closed completely. About the synthetic rubber sealing element, it is available of different temperature toleration according to the max. allowable operating temperature when the air damper is in working condition. The max. temperature toleration is 285°C.
7. In the multi-blade control damper, the torque transmission of blades is operated through the coupling rod which is installed in the both ends of air damper. But there is only one end of air damper with the coupling rod when the effective width of air damper ≤400mm.
8. The shape of air damper has two types of rectangle and square-round. The air damper of square-round shape is used in the round air flue, and it perfectly solves the large leakage question of round air damper.
9. HY-F series air flow control damper has many varieties and complete specifications. You can choose the suitable variety according to user requirement to reach the best cost performance and reduce the project cost.