What is the difference between Ball Valve and Spherical Valve?
When we use each of them?
Thanks
Dear Prof. Dr. Morteza Anbarsooz,
01. Ball Valve:
A Ball valve is a quarter-turn rotational motion valve that uses a ball-shaped disk to stop or start flow. If the valve is opened, the ball rotates to a point where the hole through the ball is in line with the valve body inlet and outlet. If the valve is closed, the ball is rotated so that the hole is perpendicular to the flow openings of the valve body and the flow is stopped.
Disadvantages of Ball Valve:
02. Sperical Valve:
Spherical valves are typically used for high pressure power plant and dam projects. Projects that consist of high water head will require a high pressure valve like the spherical valve. They can also be used for turbine protection by shutting down the inflow in the case of emergency.
I hope the information will help you.
With Best Wishes,
Samir G Pandya
Dear Professor Samir G Pandya
Many thanks for your information. The ball used in a Ball Valve is also a sphere, similar to a spherical valve. I mean the object used to throttle or block the flow is the same in both valves. Am I right or there is a difference between them?
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