The Difference Between Check Valves & Globe Valves

What is check valve and globe valve?

Check valve refers to the opening and closing parts for the round valve and rely on their own weight and media pressure to generate action to block the medium backflow of a valve. Globe valve is the opening and closing parts for the plug-shaped valve flap, sealing surface is flat or conical, the valve flap along the center line of the valve seat for straight-line movement of a valve. Understanding the difference between check valves and globe valves helps to help you choose the right valve manufacturers, so what are the specific aspects of the difference?

What is the difference between check valve and globe valve?

Different Structure: Check valve is usually a simple structure, composed of a valve body and a valve flap. Valve flap can be spherical, disc-shaped or conical, when the medium flow direction changes, the valve flap will be the pressure of the medium to promote the closure. Globe valves usually adopt a complex structure, consisting of a valve body, a bonnet and a spool. The spool can be moved up and down, by rotating the bonnet to control the lifting of the spool, so as to realize the opening or closing of the valve.

Different Uses: Check valves are generally widely used to automatically stop the liquid backflow, such as water pipelines, sewage treatment systems. Stop valve is generally widely used to cut off the pipeline in the liquid supply of manual or electric valves, such as industrial pipelines, petrochemical systems.

Different Flow Rate: Check valves are required to be fully open, and globe valves are generally not required to be fully open.

Direction Requirements: Check valve for the import direction and export direction and no strict requirements, while the globe valve generally have strict requirements for the import direction and export direction.

In general, the check valve is mainly used to prevent the backflow of media, that is, in the medium flow direction change, the valve will automatically close to prevent the backflow of media. It usually only allows the medium to flow in one direction, and in the other direction to prevent the flow. Globe valve is mainly used to cut off or regulate the flow of media. It can be completely open or completely closed, can also be partially open or closed to regulate the flow of the medium, they are different in function and structure, applicable to different use scenarios.