BN2302 Pneumatic tri-eccentric high performance butterfly valves are innovative product of the double eccentric. On the basis of preserving primary radical eccentric and axial eccentric, the axis of conical seal surface has been inclined with the center of valve flow path to form angle eccentric. The unique design make it suitable to high pressure & high temperature etc heavy duty services. Additionally, the butterfly valve has excellent sealing performance. BN2302 series are characterized by compact structure, effective handle and long work life. They can be widely used to reliably cut-off or control various process fluids.