The purpose of pressure tapping is to add bypasses, tees, and other construction techniques to pipelines without shutting them down under pressure. Firstly, a flanged pipe section is焊接, followed by a pressure-grade gate valve installed on the flange, ensuring the valve is concentric and has the correct bore diameter. Once in place, the valve is fully opened, and the tapping drill machine is bolted on top. The tapping process is then carried out according to the operational procedures. After completion, the cutting tool is raised to the manifold, and the pipe material removed. The valve is sealed, the drill removed, and the bypass connection made. Pressure tapping refers to a technique that involves machining circular holes in operating pipelines under closed conditions using mechanical cutting. It is primarily used in the oil, chemical, and pipeline industries. When it's necessary to install branch lines on in-service pipelines, the pressure tapping technology can be employed to do so without affecting the normal operation of the pipeline, while ensuring safe and environmentally friendly connections between new and old pipelines.