A pneumatic upward extension tank bottom valve is a special type of valve used to control the flow of fluids through pipelines. It is commonly used in tanks and other large containers to enable control of the entry and exit of fluid media.

The type representation method for this valve includes a series of code names that describe its characteristics and specifications. These codes include code, seal material, body type, connection method, nominal pressure, body material, nominal diameter, control method, explosion protection level, accessory options, etc. These code names have specific meanings and uses.

For example, the code name WH indicates the Weiheng brand, the code F stands for PTFE as the sealing material, and the code B stands for ExdIl BT4 Gb explosion-proof explosion-proof grade. Other code names have similar meanings and uses to describe different aspects of characteristics and specifications.

The valve can be connected in a variety of ways, including female thread, lead ring, integral switching type, external thread, flange, double acting and single acting adjustment type, etc. These codes are used to describe how the valves are installed and connected, so that the appropriate valves can be selected according to different application scenarios.

In addition, the valve can be controlled in a variety of ways, including standard switching and regulating types. These codes are used to describe how valves are controlled so that the appropriate valve can be selected for different control needs.

The following points need to be noted:

1. The model representation method needs to accurately describe the meaning and purpose of the various code names to be able to understand and use the valve correctly.

2. It is necessary to introduce the differences between various code names and the scope of application so that the appropriate valve can be selected according to the actual application scenario.

3. The special uses and characteristics of pneumatic upward expansion tank bottom valves need to be highlighted in order to understand their advantages and application scope.