The classification and compilation of ball valve models are mainly based on a series of standardized parameters, which together form the model identification of the ball valve for identification, purchase, and use. The following is a detailed explanation of the methods for classifying and compiling ball valve models:

1. Basic composition of ball valve models

Ball valve models are usually composed of multiple parameters, including but not limited to: valve type, connection method, material, nominal diameter, nominal pressure, and operating mode. Through the combination of these parameters, a unique ball valve model can be determined.

2. Specific parameters of ball valve models

1) Valve type:

The structural types of ball valves are diverse, such as full-port ball valves, straight-through ball valves, three-way ball valves, and four-way ball valves. These types are usually represented by the letter "Q", followed by specific numbers or letters to indicate the specific type. For example, Q41F represents a full-port ball valve.

2) Connection method:

The connection methods of ball valves include threaded connection, flange connection, socket connection, and welding connection. These connection methods are usually represented by specific letters in the model, such as P for flange connection, G for threaded connection, C for socket connection, etc.

3) Material:

The material of the ball valve has a significant impact on its performance and application. Common materials include stainless steel, carbon steel, cast iron, and copper. The material is usually represented in the model by a combination of letters and numbers, such as S for stainless steel, WCB for carbon steel, etc.

4) Nominal diameter (DN):

The nominal diameter of the ball valve is an important parameter indicating the size of the valve. It is usually expressed using the standard international size standards, such as DN15, DN50, DN100, etc. This parameter is directly indicated in the model as the diameter of the ball valve.

5) Nominal pressure (PN):

The nominal pressure of the ball valve is an important parameter indicating the pressure-bearing capacity of the valve. It is usually expressed using the standard international pressure grade standards, such as PN10, PN16, PN25, etc. This parameter is used to distinguish different pressure-bearing capacities of the ball valve.

6) Operating mode:

The operating mode of the ball valve includes manual, pneumatic, and electric, etc. These operating modes are usually represented by specific letters or numbers to distinguish them.

3. Compilation method of ball valve models

The compilation method of ball valve models usually follows certain industry standards and norms to ensure the accuracy and universality of the model. In the compilation process, the actual parameters and application of the ball valve need to be combined and identified according to the prescribed format and rules.

4. Example

Take a stainless steel flange ball valve as an example. Its model may be "Q41F-16P DN100". In this model:

• Q41F represents a full-port ball valve;

• 16P represents a nominal pressure of PN16 and a material of stainless steel (the P may represent a specific material or standard of stainless steel);

• DN100 represents a nominal diameter of 100mm.

5. Summary

The classification and compilation of ball valve models are based on the combination and identification of a series of standardized parameters. By understanding the meanings of these parameters and the compilation methods, it is convenient to identify, purchase, and use ball valves. In practical applications, it is necessary to select the appropriate ball valve model and parameters according to specific needs and scenarios.