The road of technology creation and development of new electric ball valve products mainly includes the following. The first road is to cooperate with universities and research institutions. The new valve products jointly developed by both parties have the international leading product level, which can compete with foreign brand valve products and have the international standard. Through scientific and technological creation, the gap and distance between domestic valves and international valves can be narrowed. If the enterprise has certain scientific and technological strength, it can develop and create new products by itself.

Variable eccentric butterfly valve: The unique feature of variable eccentric butterfly valve is that the valve stem shaft for installing the butterfly plate is a three-stage axial structure. The two shaft sections of the three-stage axial valve stem are concentric, and the center line of the central section shaft deviates from the axis at both ends by a center distance. The butterfly plate is installed on the intermediate shaft section. Such eccentric structure makes the butterfly plate become double eccentric when it is in the fully open position, and become single eccentric when it is turned to the closed position. Due to the action of the eccentric shaft, when closing, the butterfly plate moves a distance to the sealing cone of the valve seat, and the butterfly plate matches the sealing surface of the valve seat to achieve reliable sealing performance.