Globe valves and gate valves are two of the most common valves in industrial plants. Both are designed to keep systems running as efficiently and safely as possible. These valves have similar bodies, but they feature their own unique designs and have their own applications. To help you understand the differences between globe valve vs gate valve , read the guide below. Contact The Valve Experts. Globe valves vs gate valves are designed for many applications in several fields, including the oil and gas industry.
The disc of the gate valve can be formed like a wedge, knife or parallel. While it does have some throttling capacity, the gate valve is not used to regulate the flow of media. Its disc is thin so the vibration from the media causes this thin disc to misalign from its seat.
This condition causes damage and shortens its service life. To lengthen the valve life, the gate valve should fully open or fully close when in use. The globe valve is also a member of the linear motion valve family.
Its functions include stopping and starting of media as well as regulate the flow of media. Because of its design, the globe valve provides a tight seal with fewer chances of leakage. The globe valve is aptly named as such because of its traditional body design similar to that of the globe. But as one gate valve China manufacturer would tell you, however, modern globe valves may adapt to other body shapes. A plug-like disc allows or prohibits the flow of media. The seats of the gate valve are parallel to the flow of the media so there is less seat erosion when the valve is on.
This also makes the globe valve a great throttling valve. The downside is, there is a high-pressure drop because of its design.
Additionally, the media flow inside the valve depends on the space between the seat and the disc. The farther these are, the more fluid comes in. Globe valves highly suitable for applications where safety and leaks are the main concerns. These valves are often in top-entry design, meaning, access to the internal components of the valve is from the top. There is always a comparison between the gate valve and the globe valve. How would you use these two? If you still have questions, let us know. Contact us via email, chat, or good old-fashioned telephone.
If buying in bulk hit us up about special deals especially if you are a contractor! Follow PlumbersStock on Facebook. Follow PlumbersStock on Linkedin. Follow PlumbersStock on Pinterest. The fluid resistance of the globe valve is large, while the distance between the valve plate and the sealing surface is short, so the opening and closing is laborious and the travel is short.
When the globe valve opens and closes, the handwheel rotates and lifts with the stem. But for gate valves, the stem moves up and down without changing the position of the handwheel itself. Gate valve is only fully open or fully closed, the travel of the gate is large and cost long the closing time. Gate valve is a general service valve that is used primarily for on-off, non-throttling applications.
Gate valve operates in two direction and two-way flow. Gate valve runner in a horizontal line and the ordinary gate valve has a small flow resistance coefficient, that is about 0. Globe valves will only work in one direction and it has a larger amount of fluid trapping in the line due to the direction of flow.
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