Hard sealed fully welded ball valve is a widely used ball valve in various fields, often used in urban natural gas pipelines, urban oil pipelines, and urban heating pipelines. It has a simple structure, light weight, strong sealing, corrosion resistance, easy installation, and can ensure the normal transmission of urban energy. In industrial pipelines, people may use fully welded reduced diameter ball valves, which are a type of hard sealed fully welded ball valve made of carbon steel material as an integrated ball valve.

It can be used not only in urban energy transmission pipelines, but also in industrial fields. For example, in a steel plant, in order to improve production efficiency and not waste energy, the steel plant will make many pipelines by itself. Gas pipelines, gas pipelines, heat supply pipelines, exhaust gas discharge pipelines, and so on. The sealing surface of the fully welded reduced diameter ball valve is made of special materials, which can ensure that there will be no leakage during the transmission of gas medium. Therefore, it has become one of the commonly used valves in industrial pipelines.