Two Major Characteristics Of High Pressure Gate Valve And High Pressure Ball Valve

- Jul 24, 2020-

The first step in choosing a valve is to understand the functions and characteristics of different types of valves. As a control device for liquid in the pipeline, the anti-corrosion performance of high-pressure gate valves is closely related to the sealing and cutting effect. The following is to take everyone to understand the anti-corrosion design of high-pressure gate valves.


1. Anti-corrosion treatment technology


The application of valves in various systems and pipelines is very important. The control and adjustment of flow media in many equipment and machinery pipelines are realized through valves. The role of high-pressure gate valves is to control and regulate various fluids. Understanding the anti-corrosion treatment technology of the valve can help you choose higher quality. The anti-corrosion of the high-pressure gate valve is related to its service life and effect, and whether it will cause leakage and other problems.


Although the high pressure gate valve is a small part configuration, not all valves on the market are of reliable quality. Only the quality of valves produced by regular and reliable manufacturers can be more guaranteed. The most commonly used valve treatment technology is spray paint. In order to improve the anti-corrosion treatment effect on the inner and outer surfaces of the valve, pre-degreasing and descaling and painting before assembly are required before the spray paint.


2. Overall anti-corrosion treatment


The main part of the high-pressure gate valve is the valve body. The valve body is sprayed and painted, and the valve stem, valve cover, valve seat duct and other components need to be treated with an integrated anti-corrosion treatment. The usual method is reliable all-inclusive Pulp anticorrosion and coating treatment.


The anti-corrosion treatment of the high-pressure gate valve is not simply spray paint or coating. The pre- and post-treatment work is still very important. Therefore, if there is a demand, the quality of products from regular manufacturers must be more reliable.

The high-pressure ball valve is different from ordinary valves in that its opening and closing parts are designed as spheres. The valve stem rotates around the axis of the sealing surface to adjust the fluid. It is a very important fluid control part device. The high-pressure ball valve will be introduced in detail below.


1. Applicable fields


As one of the basic pipeline fluid control parts, the high-pressure ball valve has a wide range of applications, but at the same time, compared with other valve types; it has its own unique characteristics. The high-pressure ball valve works by the rotation of the opening and closing parts. The main function is to connect or cut off the fluid. It can also be used to adjust and control the fluid, while the high-pressure gate valve works by lifting motion.


Another feature of the high-pressure ball valve is that a large shear force can be generated between the internal valve core and the valve seat made of cemented carbide, so it is most suitable for not only the connection and shutting of fluid, liquid, and natural gas. , More suitable for fluid media containing tiny solid particles and fine fibers. If it is a high-pressure ball valve with a multi-port design, it can also control the diversion, merging of the fluid medium and the switching of the fluid direction more flexibly.


Two, use advantages


Compared with the high-pressure gate valve, the high-pressure ball valve can withstand very small fluid pressure, and the full-bore valve does not even have any fluid resistance. And the scope of application is very wide, whether it is high pressure or high vacuum conditions can be used.


Because of the high shear force between the ball core and the valve seat, the high-pressure ball valve is very suitable for controlling and adjusting the fluid medium containing solid suspended particles. When fully open and fully open, because it is separated from the medium, it will not be corroded by the medium.

Butterfly-valve