Double offset butterfly valves
are further improved on the basis of single eccentric butterfly valves
and are widely used. Its structure is characterized by the deviation from the center of butterfly plate and center of body at the stem axis. The double eccentricity effect makes the disc rapidly disengage from the seat after the valve is opened, greatly eliminating unnecessary over-extrusion and scraping of disc and seat, reducing the opening resistance, reducing wear and improving the seat life.
Double Offset Butterfly Valve Products: