Classification of Gate Valve

Gate valves can be classified based on various factors such as design, functionality, and application. Here are some of the commonly used classifications of gate valves:

1. Based on sealing surface design:

- Solid wedge gate valve

- Flexible wedge gate valve

- Split wedge gate valve

- Parallel slide gate valve

2. Based on functionality:

- Rising stem gate valve

- Non-rising stem gate valve

- Knife gate valve

- Wedge gate valve

3. Based on application:

- Low-pressure gate valve

- High-pressure gate valve

- Water gate valve

- Gas gate valve

- Oil and gas drilling gate valve

- Cryogenic gate valve

4. Based on end connection:

- Flanged gate valve

- Threaded gate valve

- Welded gate valve

- Grooved gate valve

- Lug gate valve

Each of these classifications has its own unique features and advantages, and can be selected based on the specific requirements of the application.