Description Of The Characteristics Of High Pressure Gate Valve And High Pressure Ball Valve

2 Piece Threaded Ball Valve uses flange connection, which is an integral straight-through casting valve. It is mainly used for pipelines with pressures below 16.0 MPa such as water, steam, and oil. The middle part is connected by a valve cover. Even if it works in a high temperature and high pressure environment, it still has a very superior sealing function. The upper part of its sealing surface is welded with hard alloy, and the pure gold layer after processing is ≥3 mm, which has the advantages of wear resistance, high temperature resistance, corrosion resistance, and long service life.

Structure of high-pressure gate valve

1. It adopts a middle flange bolt connection, and both ends of the branch pipe are flange connectors.

2. The valve seat sealing surface is manufactured by iron-based chromium-nickel stainless steel surfacing process, which has good wear resistance. The surface of the valve stem is treated with corrosion-resistant nitriding and has good corrosion resistance and abrasion resistance.

3. The closing and opening of the valve is controlled by a device installed on the valve cover, which is equipped with a variety of components such as a valve-specific motor and a reducer, and there are also manual switching and electric switch switching settings. The switch of the valve is adjusted by the stroke control mechanism, and the torque limiting mechanism is adjusted to protect the valve when the stroke control mechanism fails.

Features of high-pressure gate valves

The structure of high-pressure gate valves is very compact and the design is more reasonable, which makes the rigidity of the valve better than that of ordinary gate valves, the passage is unobstructed, and the flow resistance coefficient is small. The sealing surface is made of stainless steel carbide material with a long service life. And it is filled with soft graphite, which is more reliable.

High-pressure gate valves are widely used in oil and water steam pipelines such as petrochemicals and thermal power plants to connect or cut off the medium in the pipeline. It is very light and flexible in operation, and there are many drive modes to choose from, including manual, electric, pneumatic, etc.

The first step in selecting a valve is to understand the functions and characteristics of different types of valves. As a control device for liquids in pipelines, the corrosion resistance of high-pressure gate valves is closely related to the sealing and cutting effect. The following will take you to have a deep understanding of the corrosion protection 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 regulation of flow media in many equipment and machine pipelines are achieved through valves. The function of high-pressure gate valves is to control and regulate various fluids. Understanding the anti-corrosion treatment technology of valves can help you choose higher quality ones. The anti-corrosion of high-pressure gate valves is related to their service life and effect, as well as whether leakage and other problems will occur.

Although the high-pressure gate valve is a small part configuration, not all valves on the market are of reliable quality. Only valves produced by regular and reliable manufacturers are more guaranteed. The valve treatment technology currently used is mainly spraying and baking paint. In order to improve the anti-corrosion treatment effect of the inner and outer surfaces of the valve, it is necessary to carry out preliminary degreasing and descaling, pre-assembly painting, etc. before spraying and baking paint.

2. Overall anti-corrosion treatment

The main parts of the high-pressure gate valve are the valve body, which is sprayed and painted, while the valve stem, valve cover, valve seat guide and other parts need to be treated with an overall anti-corrosion treatment. The method usually used is reliable full slurry anti-corrosion and coating treatment.

The anti-corrosion treatment of high-pressure gate valves is not simply spraying and baking paint, coating, and the early and later treatment work is still very important. Therefore, if there is a need, you must identify the product quality of regular manufacturers to be more reliable.