The urban water supply and drainage pipe network is a bridge connecting water supply and drainage enterprises, the vast number of users, and water treatment centers, and is closely related to industrial production and the life of urban residents. The water supply and drainage network is composed of various pipeline accessories and accessories such as pipes and valves. In the daily water supply network water supply, water pressure scheduling and deployment, the need for water stoppage for maintenance and repairs, the connection of new and old pipelines, and the flushing of pipelines, etc., The valve must be opened and closed. The life and quality of the water supply and drainage valve products play a vital role in the normal operation of the water supply network.