Globe control valve

A more modern version of the globe valve design uses a piston-shaped plug inside a surrounding cage with ports cast or machined into it.

These cage-guided Globe Control Valve throttle flow by uncovering more or less of the port area in the surrounding cage as the plug moves up and down. The cage also serves to guide the plug so the stem need not be subjected to lateral forces as in stem-guided valve solution design.

Cage-guided globe valves are available with both balanced and unbalanced plugs. A balanced plug has one or more ports drilled from top to bottom, allowing fluid pressure to equalize on both sides of the plug. This helps minimize the forces acting on the plug which must be overcome by the actuator.


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