Basic Concepts of Ball Valves
A ball valve is a valve that controls the flow of fluid by rotating a ball. Its core component is a ball with a central through-hole. When the ball rotates 90 degrees, the through-hole aligns with the pipe, opening the valve; when it is perpendicular, it closes. This design makes it simple to operate and provides good sealing, making it suitable for applications requiring rapid on/off switching.
Working Principle of Ball Valves
Manual Operation: The ball is rotated using a handle or gear mechanism.
Automatic Control: Can be connected to an electric or pneumatic actuator for remote operation.
Sealing Mechanism: Sealing is achieved through a tight fit between the ball and the valve seat.
Flow Direction Characteristics: Most ball valves do not have specific requirements for flow direction, but some special designs have flow direction restrictions.
Typical Applications of Ball Valves
Due to their simple structure and ease of maintenance, ball valves are widely used in many fields:
Domestic Water Supply Systems: Controlling hot and cold water pipelines.
Industrial Pipelines: Used for transporting media such as petroleum and chemicals.
HVAC Systems: Regulating heating pipelines.
Fire Protection Systems: As a quick-shutdown device.
Special applications: Food-grade ball valves are used in beverage production lines.
