Comparison between Gate valve and Globe Valve

Comparison between Gate valve and Globe Valve

1. Gate valves are used for On-Off control whereas Globe valves in addition can also be used for the flow regulation.
2. Gate valves offer very little resistance to fluid flow in fully open position and also have small pressure drop across the valve. Globe valves on the other hand have a high pressure drop even in fully open conditions and offer substantial resistance to fluid flow.
3. Gate valves of the same size are cheaper than globe valves.
4. Under very low pressure, i.e. 5 psi, light seepage would not be considered abnormal with a gate valve. On the other hand, Globe Valve will not leak under low pressure when they are shut off.
5. Gate valves because of their design, have very little fluid trapping in the line, but the globe valves have a larger amount due to the direction of flow.
6. Gate valves are unidirectional and can be put around in any way. The globe valves are not.