A ball valve, also known as cone valve, is a flow control device which operates using a spherical ball with a hole through the middle. When the valve handle is turned, the ball rotates to align the bo
A valve is a device or natural object that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically fittings, but ar
Ball valve
…A ball valve, also known as cone valve, is a flow control device which operates using a spherical ball with a hole (also known as a bore) through the middle. When the valve handle is turned, the ball rotates to align…
These water valves are operated by rotary handles.
Valve disc
The shut off butterfly valve for a Francis turbine at Gordon Power Station, Tasmania