Analysis of the main parameters of ball valves

First, the main parameters of the ball valve
As an important shut-off valve, the main parameters of ball valve are as follows:
1. Working pressure
The working pressure of the ball valve refers to the maximum pressure that the valve can withstand, which should generally be within the operating pressure range of the valve.
2. Caliber size
The diameter of the ball valve is generally expressed as DN, which is the diameter in the fluid pipeline of the valve, which directly affects the flow rate of the valve and its performance.
3. Connection
The connection methods of ball valves include threaded connection, flange connection, clamp connection, welded connection, etc., and different connection methods will have an important impact on the convenience of installation and disassembly.
4. Operating temperature
The operating temperature of the ball valve determines the reliability of the opening and closing of the valve and the range of its use.
5. Material selection
Different working media need to choose different materials, such as chemical media need to choose corrosion-resistant materials.
Second, the influence of parameters on the performance of the valve
1. Working pressure
Too high or too low working pressure will affect the performance of the valve, too high pressure can easily lead to valve failure, too low pressure will affect the sealing performance of the valve.
2. Caliber size
The size of the bore will affect the flow rate of the valve, and the flow rate of the large bore valve is large, but it requires a greater opening force, and the appropriate valve size needs to be selected according to the specific application.
3. Connection
Different connection methods have different effects on the installation and disassembly of valves, such as flange valves are suitable for large flow occasions, and clamp valves are suitable for hygienic occasions.
4. Operating temperature
Ball valves will lose good valve closure performance at too high or too low temperatures, and it is necessary to select the appropriate material according to the specific operating temperature.
5. Material selection
The selection of materials needs to take into account the mechanical properties and corrosion resistance of the valve, and select the appropriate materials according to the actual medium.