Butterfly valve structure of fume duct ventilation

The ventilation butterfly valve is mainly used for intercepting and regulating the flow rate in the smoke duct. Ventilating butterfly valve manufacturers choose according to the media combined with the use of the butterfly valve environment.

Ventilation butterfly valve is also known as baffle door, shut-off door and flue regulating valve, etc., mainly used in the air duct, flue to do intercepting or regulating cut-off flow. By installing the damper, the medium such as flue gas or dust in the pipeline can be circulated, truncated and the size of the medium flow can be controlled.

In order to adapt to different working conditions, there are many types of ventilation butterfly valves. According to the performance can be divided into closing door, adjusting door; The shut-off door can open and close but does not play a regulating role. The adjusting door can control the size of the medium flow through the opening Angle of the damper. According to the driving form is divided into electric, manual, pneumatic; According to the production process is divided into casting type and welding type; According to the material can be divided into cast iron, carbon steel, stainless steel.

The ventilation butterfly valve is used to regulate the medium flow rate in the smoke duct. The rotating shaft is driven by the actuator to control the opening Angle of the blade and control the flow rate of the smoke medium.

The ventilation butterfly valve has the advantages of simple structure, easy installation, flexible opening and closing, small flow resistance, small pressure drop, and relatively low energy consumption when the fluid passes through the damper. Different driving forms and structures can be selected according to different working conditions. Ventilation butterfly valves are widely used in various fields, such as petrochemical, electric power, dust removal and other industries in the smoke duct.

When selecting, it is necessary to implement the use temperature, the nature of the circulation medium, the installation position in the pipeline, the role played in the pipe system, the connection mode, the specification and the working environment of the field use, and inform the compensator manufacturer.