Ball valves, as a common fluid control equipment, play an important role in the industrial field. In the classification of ball valves, fluorine lined ball valves and ordinary ball valves are two common and significantly different types. This article will explore the differences between them to help readers better understand when to choose fluorine lined ball valves or ordinary ball valves.

1. Material selection

Ordinary ball valve: Usually made of metal, such as stainless steel, copper alloy, or cast iron. These materials have sufficient strength and corrosion resistance in many industrial applications.

Fluorine lined ball valve: It has an internal fluorine lining layer and usually uses fluoroplastics (such as polytetrafluoroethylene) as the inner layer material. This design makes it perform better in corrosive media.

2. Corrosion resistance performance

Ordinary ball valve: For some highly corrosive media, ordinary ball valves may require additional anti-corrosion coatings or special alloy materials.

Fluorine lined ball valve: It has excellent corrosion resistance and is lined with a fluoroplastic layer, which can effectively resist corrosive media such as strong acids and alkalis.

3. Temperature Applicable Range

Ordinary ball valve: In some high-temperature environments, there may be performance degradation, and it is necessary to choose appropriate materials to meet the high-temperature requirements.

Fluorine lined ball valve: Cannot be used in places with excessively high temperatures, usually not exceeding 150 ℃.

4. Sealing performance

Ordinary ball valve: Due to the contact between metals, the sealing performance may be relatively low, requiring reliance on sealing rings or fillers.

Fluorine lined ball valve: The combination of spherical and fluorine lined materials provides excellent sealing performance and reduces the risk of leakage.

5. Application field

Ordinary ball valve: Suitable for general industrial applications with low corrosion requirements.

Fluorine lined ball valve: Mainly used in the treatment of highly corrosive media, such as chemical, petroleum, pharmaceutical and other fields.

When choosing a ball valve, it is necessary to determine whether to use a regular ball valve or a fluorine lined ball valve based on specific industrial needs and medium characteristics. Fluorine lined ball valves perform well in handling corrosive media and high-temperature environments, but in some general industrial applications, ordinary ball valves may be more cost-effective. By fully understanding their differences, we can better meet the needs of different process systems.