Key points for selecting pneumatic ball valves

Release Time:

2022-11-29

In modern automatic control systems, pneumatic ball valves are widely used pneumatic actuators. Through pneumatic actuators, the control signal drives the ball valve to open and close, thus completing the on-off or regulating control of the medium in the pipeline. So what should be paid attention to when selecting a pneumatic ball valve? Below, Kovina Bianxiao will tell you the key points of pneumatic ball valve selection.

Key points for selecting pneumatic ball valves

In modern automatic control systems, pneumatic ball valves are widely used pneumatic actuators. Through pneumatic actuators, the control signal drives the ball valve to open and close, thus completing the on-off or regulating control of the medium in the pipeline. So what should be paid attention to when selecting a pneumatic ball valve? Below, Kovina Xiao will tell you the key points of pneumatic ball valve selection.

1. Medium used. The properties of the medium need to be considered. Many chemical media are corrosive and particulate, so they are easily damaged by sealing surfaces. How to solve this problem? Select corrosion-resistant fluoroplastic lining materials for wear-resistant treatment, thus obtaining a pneumatic fluoroplastic lined ball valve.

2. Materials used. The material of the valve body can be selected according to the site conditions. Generally, there are ductile iron, stainless steel, cast steel, carbon steel, and plastic. According to quality requirements, there are sanitary pneumatic ball valves and materials.

3. Operating pressure. This refers to the working pressure, which is divided into low pressure, normal pressure, medium pressure, and high pressure. 1.6 MPa is a common pressure, and of course it can also be used as a reference for selection data.

4. Operating temperature. It is divided into high-temperature pneumatic ball valves, low-temperature pneumatic ball valves, medium-temperature pneumatic ball valves, and normal-temperature pneumatic ball valves.

5. Location of the passage. It is divided into three-way pneumatic ball valves and two-way pneumatic ball valves. According to the characteristics of the ball valve, it is divided into floating ball valves and fixed ball valves, etc. In short, different types should be selected according to the actual working conditions.

The closing member of a stop valve (stop valve, Globe Valve) is a plug-shaped valve disc with a flat or conical sealing surface.

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