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The role of electric flange butterfly valve in the HVAC system of buildings
Date: 2025-11-16Read: 28
Electric flange butterfly valve is a key component widely used for fluid control in industrial pipelines, mainly used for opening and closing, regulating flow rate, and controlling the direction of fluid flow. It is composed of a butterfly valve body, an actuator (electric drive device), a valve control system, etc., and has the advantages of simple structure, easy operation, and high reliability. The working principle is to drive the valve stem to rotate through an electric actuator, which in turn drives the valve disc to rotate, controlling the on/off and flow regulation of the fluid. The valve disc is circular and installed in the center of the valve body. By rotating, the area of the fluid flow channel is changed to control the fluid flow rate. When the valve disc is in the closed position, the sealing surface between the valve body and the valve disc is in close contact, and fluid cannot pass through; When the valve disc rotates to the open position, the fluid flow channel is maximized and the valve is in the open state.
The electric actuator is driven by an electric motor and automatically adjusts the position of the valve disc through control signals, thereby accurately controlling flow or opening and closing valves. Electric actuators usually include motors, reducers, transmission devices, etc., which can convert electrical energy into mechanical energy and drive the valve disc to rotate.
Electric flange butterfly valveAdvantages:
1. Compact structure: Compared with other types of valves, it has a simple structure, small volume, light weight, and is suitable for large-diameter pipelines.
2. Quick switch: Due to the generally small rotation angle of the valve disc, the opening and closing process of the valve is very fast, suitable for situations where rapid adjustment of fluid flow is required.
3. Easy to operate: The electric actuator can be remotely controlled to achieve automated operation and reduce manual intervention.
4. Strong adjustment function: It can accurately adjust the flow rate, making it suitable for flow control systems.
5. Easy maintenance: Due to its simple structure and easy disassembly, maintenance and upkeep are relatively easy.
Application areas of electric flange butterfly valves:
1. Water treatment industry: widely used in water treatment plants to control the flow of water supply and drainage, especially suitable for occasions such as reclaimed water reuse and sewage treatment.
2. Petrochemical industry: In the transportation pipelines of oil and natural gas, electric butterfly valves are used for pipeline opening and closing, flow regulation, and leakage prevention.
3. Food processing industry: Due to its simple structure and easy cleaning, butterfly valves are widely used for conveying, distributing, and regulating liquid substances in food.
4. Pharmaceutical industry: Its pollution-free characteristics make it widely used in the pharmaceutical industry for fluid transportation and regulation of drugs.
5. HVAC system: In building HVAC systems, electric butterfly valves are used to control the flow of air and liquids, helping the system achieve temperature regulation and pressure control.
6. Thermal system: In thermal transmission systems, electric butterfly valves are commonly used for controlling hot water and steam.