A pipe cap is a pipe fitting used to seal a pipe. It usually consists of a cap body and a threaded connection. Different models and materials can be selected according to different pipe diameters and working environments. Pipe caps are usually used for maintenance and sealing of pipeline systems. They have the characteristics of good sealing and easy installation.

Commonly used models:

1. Carbon steel pipe cap: pipe cap made of carbon steel material, suitable for general pipeline systems.

2. Stainless steel pipe caps: pipe caps made of stainless steel, which are corrosion-resistant and high-temperature resistant.

3. Alloy steel pipe cap: pipe cap made of alloy steel material, suitable for pipeline systems under special working conditions such as high temperature and high pressure.