The structure of a fixed flange ball valve typically includes the following parts:
-
Ball: This is the core part of the valve, usually made of metal, and is capable of rotating about 90 degrees to quickly open and close the flow of fluid in the pipeline.
-
Seat: The seat is typically made of sealing material, such as PTFE (polytetrafluoroethylene), to ensure that the valve can be completely sealed when the ball is closed, preventing fluid leakage.
-
Flanges: The ends of the ball valve are usually equipped with flange connections, allowing it to be easily connected to other flanged components in the piping system.
-
Actuator: Depending on the requirements, the ball valve can be operated manually, electrically, or pneumatically.
-
Sealing Rings: There are usually sealing rings between the ball and the body of the valve to ensure that the valve can be completely sealed when closed.
The advantages of fixed flange ball valves include:
- Simple Structure: The design of the ball valve is relatively simple, making it easy to maintain and repair.
- Good Sealing Performance: The design of the ball can achieve complete cutoff, ensuring no fluid leakage when the valve is closed.
- Good Flow Capacity: Ball valves have low fluid resistance, making them suitable for applications that require large flow adjustments.
- Wide Application: They can be used in pipelines carrying water, steam, oil, corrosive media, and more.
When selecting a fixed flange ball valve, factors such as the type of medium, temperature, pressure, and pipeline size must be considered to ensure that the valve meets the specific application requirements. Proper installation and maintenance are also crucial for the long-term stable operation of the ball valve.
