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Among various types of valves, Globe Valve are the most widely used

September 12, 2024
A Globe Valve is a valve whose closing part moves in the vertical direction along the axis of the channel. It is mainly used to cut off the medium on the pipeline, that is, it can be used fully open or fully closed. Generally, Universal Valve cannot be used for throttling. It can be used for high temperature and high pressure, and can be used for various different media. Universal Valve are generally not used in pipelines that transport mud and viscous fluids.
Brass flange stop valve
(1) Universal Valve have the following advantages:
1. Small fluid resistance.
2. Small torque required for opening and closing;
3. Can be used on ring network pipelines where the medium flows in two directions, that is, the flow direction of the medium is not restricted;
4. When fully open, the sealing surface is less eroded by the working medium than the Globe Valve;
5. The shape is relatively simple and the manufacturing process is better;
6. The length of the mechanism is relatively small;
(2) Universal Valve also have some disadvantages, mainly:
1. The overall dimensions and opening height are large, and the required installation space is also large.
2. During the opening and closing process, there is relative friction between the sealing surfaces, which causes greater wear and tear, and even easily causes abrasions.
3. Generally, Universal Valve have two sealing pairs, which adds some difficulties to processing, grinding and maintenance.
4. The opening and closing time is long.
There are various mechanisms of Universal Valve, and the main difference is the different mechanisms of the sealing elements used. According to the mechanism of the sealing element, Universal Valve are often divided into several different types, and the common forms are parallel Universal Valve and wedge Universal Valve; according to the mechanism of the Valve Stem, they can also be divided into clear stem Universal Valve and concealed stem Universal Valve.
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