Working Principle, Advantages And Disadvantages Of Fluorine-lined Wafer Butterfly Valve

Working principle, advantages and disadvantages of fluorine-lined wafer butterfly valve

1. Working principle

Fluorine-lined wafer butterfly valve is a commonly used control valve. It uses fluorine-lined materials to protect the valve body and valve seat, improving the corrosion resistance of the valve. Its working principle is as follows:

1. Open state: When the valve is in the open state, a channel is formed between the valve disc and the valve seat, and the medium can pass through the valve smoothly.

2. Closed state: When the valve is in the closed state, a seal is formed between the valve disc and the valve seat to prevent the flow of the medium.

Lined Butterfly Valve controls the flow of the medium by rotating the valve disc. It has a simple structure and is easy to operate. It is widely used in the industrial field.

2. Advantages

Fluorine-lined wafer butterfly valve has the following advantages:

1. Strong corrosion resistance: Fluorine-lined materials have good corrosion resistance, which can effectively prevent the medium from corroding the valve body and valve seat and extend the service life of the valve.

2. Good sealing: Fluorine-lined wafer butterfly valve uses fluorine-lined material as the sealing surface, which has good sealing performance and can effectively prevent medium leakage.

3. Small fluid resistance: The valve disc of the fluorine-lined wafer butterfly valve adopts a streamlined design, and the resistance of the fluid passing through the valve is small, which can reduce energy consumption.

4. Simple structure and light weight: The structure of the fluorine-lined wafer butterfly valve is relatively simple, light in weight, and easy to install and maintain.

5. Long service life: Fluorine-lined materials have high wear resistance and corrosion resistance, which can extend the service life of the valve.

III. Disadvantages

Fluorine-lined wafer butterfly valves also have some disadvantages:

1. Limited temperature range: The temperature resistance range of fluorine-lined materials is limited. It is generally suitable for low-temperature and medium-temperature media, and has certain restrictions on the application of high-temperature media.

2. Medium flow rate restriction: The medium flow rate of the fluorine-lined wafer butterfly valve should generally not be too high. Excessive flow rate may cause wear and damage to the fluorine-lined material.

3. High requirements for media: Fluorine-lined wafer butterfly valves have high requirements for media, and some special media may cause corrosion or expansion of fluorine-lined materials.

In summary, fluorine-lined wafer butterfly valves have the advantages of strong corrosion resistance, good sealing, low fluid resistance, and simple structure, but there are certain limitations in temperature range and medium flow rate. In practical applications, it is necessary to select the appropriate valve type according to the specific working conditions and medium characteristics.