Double eccentric butterfly valve means that the center of the valve stem deviates from the center of the butterfly plate to reduce the excessive compression of the upper and lower ends of the butterfly plate and the valve seat
Double eccentric butterfly valve is the center of the stem away from the center of the butterfly plate, to reduce the butterfly plate lower end and the seat of excessive extrusion
The double eccentric butterfly valve is that the center of the valve stem deviates from the center of the butterfly plate to reduce the over extrusion between the upper and lower ends of the butterfly plate and the valve seat