By: Lauryn B.
Anix Valve USA is a valve manufacturer based in Houston, Texas. Find out about our wide selection of check valves at https://anixusa.com/globe-valve
A globe valve and its uses
A globe valve is used for regulating flow in a pipeline, consisting of a movable plug or disc element and a stationary ring seat in a generally spherical body. It gets its name from their global shaped design. It can be used for manual and automatic operations, for regulating flow or pressure, or for complete shutoffs. When it is fully opened it has a higher pressure loss compared to a ball valve due to the flow of the fluid changing direction in the valve. Most of the time it has a handwheel operation. They are the most common out of all the valves.
Globe valve vs gate valve
There are quite a few differences between a globe valve and gate valve so this would help with choosing which fits your needs. Globe valves are smaller than a gate valve, with a smaller body compared to its length. Gate valves are more prone to have their disc wear out compared to globe valves due to it frequently closing and opening and the amount of flow resistance coming through. Another difference between the two is that a globe valve can only be installed in one direction while a gate valve can be installed in various directions. Globe valves are used for flow regulation while the gate valves are used for on-off control. The globe valve will have a fluid trapped due to the direction of the flow while the gate valve will have little to no fluid trapped inside. Lastly, gate valves are cheaper than globe valves.
Globe valve vs ball valve
Deciding on a globe valve or ball valve? This section will help. The difference between the two valves is the way they close: globe valves close using a plug (stem) to close and stop the flow, but a ball valve has a gate (ball) that closes and opens the flow. Gate valves are good for letting the fluid flow through, while globe valves are for on and off pressure drops. Globe valves are called stroke valves due to the stem and plug going straight and ball valves are given the name of rotational valves due to the stem and ball turning horizontally. Ball valves are very durable and usually have excellent shut off even after years of use and are generally preferred over globe valves in shutoff applications. The main limitation for ball valves is proportional control because of the large amount of flow that the ball allows.
Applications
Globe valves are used in wastewater plants, power plants, and process plants. Those valves are usually put in steam lines, coolant loops, lubrication systems, etc. They are used for shut off and regulation protocols to control how much fluid goes through the valve. There are different types of materials that are used to make the valve, such as cast iron or brass/bronze. These types of materials are used for low pressure settings. While stainless steel is used for higher pressures and temperatures. Usually globes valves are rising stems and those are the most common. The seats and dics can be replaced inside the valve, while bonnets can be removed so you can check them out.