Unlike a ball valve, a globe valve operates on the principle of a stem that moves up and down, with a plug (also called a disc or plug) at its end, to regulate the fluid flowing through the valve. Globe valves are generally suitable for use as control valves. While ball valves operate parallel to the flow direction, globe valves operate perpendicular to it.
Globe valves are suitable for use as control valves, and their operating principle — perpendicular to the flow — makes them easy to use in high-pressure lines.
The basic parts of a globe valve are the handwheel, body, disc and bonnet.
In globe valves, friction losses are high because the fluid changes direction inside the valve. In addition, although they are suitable for use as control valves, when left at intermediate positions the disc is continuously exposed to the fluid load, which leads to wear and deterioration.
Source: KSB Global
