There are mainly the following types of ball valves, and the differences between them mainly lie in structure, function and application occasions:
1. V-type ball valve:
Structure: The ball has a V-shaped cutout, which can accurately control the flow.
Function: It has good flow regulation characteristics and is suitable for occasions where the flow is accurately controlled.
Application: It is often used in occasions where the flow needs to be accurately adjusted, such as chemical, pharmaceutical and other industries.
2. Fixed ball valve:
Structure: The ball is fixed and relies on the movement of the valve seat to achieve sealing.
Function: The ball will not move due to fluid pressure, and the sealing effect is guaranteed by the valve seat. It is usually used for high-pressure and large-diameter pipelines.
Application: It is suitable for high-pressure and large-diameter pipeline systems.
3. Three-way ball valve:
Structure: There is an L-shaped or T-shaped flow channel, which can realize diversion, mixing and flow direction switching.
Function: It can control the flow direction of the fluid and is used to mix or distribute the fluid.
Application: It is widely used in pipeline systems that need to switch the flow direction, such as water treatment, heating systems, etc.
4. Track ball valve:
Structure: The ball moves along the predetermined track, and the ball presses on the valve seat when closed.
Function: Reduces friction during opening and closing, suitable for occasions with frequent operations.
Application: Commonly used in occasions that require frequent operations, such as refineries, chemical plants, etc.
5. Floating ball valve:
Structure: The ball is floating and supported by the valve seat on both sides.
Function: Under the action of fluid pressure, the ball can move freely, thereby pressing the downstream valve seat to ensure sealing.
Application: Suitable for small-diameter pipelines with medium and low pressures.
6. Fully welded ball valve:
Structure: The valve body and the pipeline are connected by welding, and the valve as a whole is an irremovable structure.
Function: It has better sealing and strength, suitable for harsh environments.
Application: Widely used in underground pipelines, natural gas pipelines and other occasions with long-term use and harsh environments.
These ball valves are selected according to different needs and working conditions in actual applications to ensure optimal performance and reliability.