Globe Valve

Control Valves
1

The name “globe” refers to the external shape of the valve, not the internal flow area. A typical globe valve has a stem that is adjusted linearly (up and down) to change the position of the plug.

As the plug changes, the area for flow between the plug and seat (opening) changes. Many different seat and plug designs are available to achieve desired relationships between the stem position and flow rate;

The standard plug must oppose the pressure drop across the valve, which is acceptable for small pressure drops. For large pressure drops, a balanced globe valve is used to enable a valve with small force to open and close the plug.

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2

A valve with a linear motion, push-pull stem, whose one or more ports and body are distinguished by a globular shaped cavity around the port region.

This type of valve is characterised by a torturous flow path and is also referred to as a low recovery valve because some of the energy in the flow stream is dissipated and the inlet pressure will not recover to the extent that it would in a more streamlined high recovery valve.

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