Dayu Company established Dayu Valve Design Institute to conduct systematic product design and research and development. With the efforts of the company’s chairman and all designers, it has obtained more than 60 national patents. Participated in the formulation of four national industry standards for water supply and drainage butterfly valves, water supply and drainage buried gate valves, split pilot-operated pressure reducing and regulating valves, and aluminum and stainless steel gates.
Up to now, the company has only three products that have passed the scientific and technological achievement appraisal, namely the piston multi-function control valve (the appraisal result is domestically advanced) and the directly buried elastic seat seal gate valve (the appraisal result is domestically advanced). Leading), butterfly-type inclined seal multi-function check valve (identification result is domestically advanced).