The Selection Factors of Regulating Valves and the Application of Blind Plate Valves

1. Temperature and pressure of the medium.

When the temperature and pressure of the medium are high and vary greatly, valves with valve core and valve seat materials that are subject to temperature and pressure changes should be selected.

2. Valve core shape and structure.

The electric gate valve is mainly considered based on factors such as the selected flow characteristics and unbalanced force.

3. Corrosion resistance.

Due to the corrosive nature of the medium, it is advisable to choose valves with simple structures.

4. Prevent flashing and cavitation.

Flash evaporation and cavitation only occur in liquid media. In the actual production process of welding power plant valves, flash evaporation and cavitation can form vibration and noise, shortening the service life of the valve. Therefore, when selecting valves, it is necessary to prevent flash evaporation and cavitation of the valve.

5. Wear resistance.

When the fluid medium is a suspended high-temperature and high-pressure power plant valve fluid containing high concentration of abrasive particles, the internal material of the valve should be hard.

The blind plate valve in general valves is mainly used for pipeline interception and is applied in many industries. These pipelines either often need to be completely closed or require high-temperature and high-pressure valves to reach full flow without pressure drop.

The usual method for pipeline interception is to use unique materials, such as "8" shaped blind flanges, blind flange short pipes, blind flange valves, etc. At the same time, gaskets are inserted between the flanges. However, this method is labor-intensive and time-consuming, which can increase costs.

In the required interception/cut-off process, the production efficiency decreases due to the long interception time, and pipeline operators are inevitably exposed to potential threats such as explosions, fires, pollution, and inhalation of harmful gases. Blind valves.

The most important feature of fluorine valves is their corrosion resistance, with a maximum operating temperature of around 200 degrees Celsius, depending on the temperature and pressure curve of the product.

The relationship between the leakage of valves and fluorine lining is not very significant. The key is to choose the correct valve type for the valve, and the conditions such as temperature, pressure, medium, and usage site must be met. Then, the quality of the valve must be guaranteed. fluorine lining valves have been used in concentrated sulfuric acid pipelines before, but soon after the valve core leaked, they were replaced with ordinary carbon steel stop valves for inspection.