What Is A Manual Ball Valve

A manual ball valve is a shut-off valve that uses an internal rotating ball to control fluid flow. It features simple operation, high sealing performance and long life. With the handle, the user can easily rotate 90 degrees to open or close the valve. Its design makes it suitable for use in a variety of fluid services and is particularly suitable for fast switching operations. However, ball valves are not recommended for regulating or throttling.
The manual ball valve is a simple shut-off valve that uses an internal rotating ball to control the flow of media. This sphere has a hole with the same diameter as the flow channel. When the hole is aligned with the flow channel, the medium can flow through; when the sphere rotates 90 degrees, the flow channel is blocked by the sphere and the medium cannot pass, thereby achieving shutdown.
The following are the main features and components of manual ball valves:
Operation: The manual ball valve is operated by a handle, which usually only needs to be rotated 90 degrees to go from fully open to fully closed or vice versa.

Structure: Mainly composed of valve body, ball, handle, valve seat, seals and shaft seal.
Sealing performance: The sealing performance of the ball valve is very good, especially the soft sealing ball valve, which can achieve zero leakage.
Scope of application: Due to its simple design, small size and low maintenance requirements, manual ball valves are widely used in various fluid services, especially where fast switching operations are required.
Flow characteristics: The ball valve basically does not cause fluid flow resistance, because when the valve is fully open, the flowing hole is the same as the inner diameter of the pipe.
Durability: Under normal operating conditions, ball valves have a long service life and require less maintenance.
Limitations: Although the ball valve is primarily used in shut-off applications, it is generally not recommended for regulating or throttling because the fluid may erode the surface of the ball when partially open.
Overall, the manual ball valve is a simple, reliable and efficient shut-off device suitable for a variety of applications and conditions.