Cap pipe fittings work by covering the open end of a pipe securely, preventing the flow of fluids or gases out of the pipe. They are designed to create a tight seal, which helps to prevent leaks and maintain the pressure within the pipe system. Cap fittings are usually threaded or welded onto the end of the pipe, ensuring a secure connection.

A pipe cap is an industrial pipe fitting used to seal the ends of carbon steel pipe. It is usually made of carbon steel material and has a shape and size that matches the pipe size. Carbon steel pipe caps are an essential component in maintaining the integrity and safety of the piping system.

A Pipe cap is a type of pipe fittings, also known as heads, plugs, bulkheads, which are welded on the pipe end or installed on the external thread of the pipe end to cover the pipes. Used to close the pipeline, the function is the same as the pipe plug.