D341F、D341X Flange type soft sealing turbine triple eccentric butterfly valve has a novel design structure, a small overall size and is lightweight; The butterfly plate adopts double eccentricity, which can be opened and closed quickly, and the operation is light and labor-saving. There is no sliding friction between the butterfly plate and the sealing ring, the sealing surface is wear-resistant, has a long service life, reliable sealing and easy adjustment.