Damper is an important part of the process in places where this device is used as an air valve. This means that if the main source of air conditioning, such as a water cooler, provides ventilation to several wall vents, a separate damper is needed to regulate the air in each of them. These dampers can be placed directly at the entrance of a pipe that is tangent to the wall. Types of iron valves: These valves are installed on the roof or wall of the building to let in fresh and suitable air. Iron wall valves: They have two different types, each of which is discussed below: Volume iron valve: This air valve, which is also known as long back valve, is one of the first generation of valves. The reason for this name is the height behind this device. Iron lever valve: This type of valve is known as short back valve due to its low depth. The structure used in the lever of this valve causes it to rarely break down and require repair. The color of these iron valves is made of electrostatic powder (furnace), which has good durability and resistance to rust and corrosion. Is. Due to its short back, this type of valve is better in terms of appearance and has a relatively lower price. The thing about these valves is that in winter, due to the lack of a cover, there may be energy loss in them. For this reason, it is better to use lids for the valves in this season or cover the valve manually.

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