The PE steel-plastic composite ball valve is a significant research achievement of our company in the field of urban gas ball valves. The valve body is made of steel, while the end connection uses a PE connection pipe. The steel-plastic transition joint technology allows for a one-piece formation, effectively overcoming many safety hazards associated with pure PE valves. It also addresses the high costs and construction complexities of the traditional method, which involves using a steel valve with a steel-plastic transition joint.