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The main features of ball valves and how to choose them

2023-12-13

Ball valve is a commonly used fluid control valve with the following main characteristics: simple and reliable, compact structure, light operation, good sealing performance, small fluid resistance, and wide application range.

1. Simple structure

The structure of the ball valve is relatively simple, consisting of a ball and a valve body. The ball rotates to control the flow of fluid. This design makes the use of the ball valve very reliable, because the rotation of the ball only takes 1/4 turn to complete the switching of the fluid, making the operation convenient and flexible.

The ball valve has a compact structure and takes up little space. Compared with other types of valves, ball valves are smaller in size and are suitable for occasions with limited installation space. This feature makes ball valves widely used in engineering projects and pipeline systems.

2. Easy to operate

Ball valves are easy to operate. The operating rod or handle of the ball valve can be easily rotated, allowing for easy switching operations even under high pressure or large diameter conditions. This allows the ball valve to respond quickly in emergency situations, ensuring the safety and normal operation of the system.

3. Seal well

Ball valve has good sealing performance. The sealing rings of ball valves usually use reliable elastic materials, which can effectively prevent fluid leakage. Under working conditions of high temperature, high pressure or corrosive media, ball valves can maintain good sealing performance and ensure stable operation of the system.

4. Small flow resistance

Ball valves have small fluid resistance. The ball of the ball valve has a large diameter, and the resistance when the fluid passes is relatively small, which can ensure the rapid flow of fluid, reduce energy loss, and improve the efficiency of the system.

5. Wide scope of application

Ball valves have a wide range of applications. Ball valves can be used in a variety of media, including liquids, gases and steam. They are suitable for different industrial fields, such as petrochemical, electric power, metallurgy, pharmaceuticals, etc., to meet the fluid control needs under different working conditions.

When selecting a ball valve, you need to consider the following factors: pressure level, medium type, temperature range, fluid flow direction, valve size and material, etc.

1. Pressure level

Select the appropriate ball valve according to the pressure level of the system. The pressure rating of the ball valve should match the working pressure of the pipeline system to ensure the reliability and safety of the valve.

2. Media type

Choose the appropriate ball valve according to the media type. Different media have different requirements for valve materials and sealing, such as acid-base media, corrosive media or high-temperature media, etc. It is necessary to select the corresponding ball valve material and sealing materials.

3. Temperature range

Select the appropriate ball valve based on the temperature range. Under high or low temperature conditions, the material and sealing material of the ball valve need to have corresponding temperature resistance to ensure the normal operation and sealing performance of the valve.

4. Fluid flow direction

The flow direction of the fluid is also an important consideration in selecting a ball valve. According to the flow direction of the fluid, select a suitable ball valve structure to ensure the fluid control effect of the valve.

5. Valve size

Choose the appropriate ball valve based on the pipe size. The size of the ball valve should match the inner diameter of the pipe to ensure smooth flow of fluid and flow control.