What are the pressure ratings for ball valves?

What are the pressure ratings for ball valves?
Ball valve is a common type of valve widely used in fluid control systems in various fields. Ball valves have the advantages of simple structure, reliable sealing, and easy operation, and are widely used in industries such as petroleum, chemical, metallurgy, power, pharmaceuticals, papermaking, and water treatment. The pressure rating of a ball valve refers to the maximum working pressure that the ball valve can withstand. Different usage scenarios and application requirements will require ball valves with different pressure ratings. Below, we will provide a detailed introduction to the pressure rating and application of ball valves.
1. PN level
PN level refers to the pressure level that a ball valve can withstand. Common PN levels include PN1.0, PN1.6, PN2.5, PN4.0, PN6.3, PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN320, etc. The PN level is determined based on the working pressure of the ball valve and the material of the valve body. Generally speaking, low PN levels are suitable for low-voltage working environments, while high PN levels are suitable for high-voltage working environments.
2. ANSI level
The ANSI (American National Standards Institute) rating is a commonly used pressure rating standard for ball valves. Common ANSI levels include Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500, etc. The ANSI level is commonly used in industries such as oil, natural gas, and chemical engineering, and its rating standards are determined by valve material, structure, and performance.
3. JIS level
JIS (Japanese Industrial Standard) level is a standard for the pressure rating of ball valves, with common JIS levels including 10K, 20K, 30K, 40K, etc. The JIS level is mainly applicable to industries such as petrochemicals, electricity, shipbuilding, and papermaking, and its level standards are determined based on the working pressure and application scenarios of ball valves.
4. DIN level
DIN (German National Standard) level is a common pressure rating standard for ball valves. Common DIN levels include PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, etc. The DIN rating is mainly applicable to the European market, and its rating standards are determined based on the working pressure of ball valves and pipeline connection standards.
5. GB level
GB level is the Chinese national standard for the pressure rating of ball valves. Common GB levels include 1.0MPa, 1.6MPa, 2.5MPa, 4.0MPa, 6.4MPa, 10MPa, 16MPa, 25MPa, etc. in GB/T 12237-2007. The GB level is mainly applicable to the Chinese market, and its rating standards are determined based on the working pressure of ball valves and national standards.
In summary, the pressure ratings of ball valves include PN, ANSI, JIS, DIN, and GB levels. Different pressure levels are suitable for different working pressure ranges and application scenarios. Choosing the appropriate pressure level ball valve is an important factor in ensuring work safety and reliability. At the same time, when selecting a ball valve, it is also necessary to consider factors such as the material, structure, and sealing performance of the valve to meet the needs of different application scenarios.