Four stage sealing structure is adopted, and the sealing surface is equipped with temperature resistant and anti-aging silicone rubber elastic gasket valve seat, which can completely achieve zero leakage of media. For example, the special transition curve at the connection between the shaft head and the butterfly plate circumference and the reasonable interference fit of the valve seat, as well as the use of elastic O-rings and rigid gaskets and elastic rubber pads at the shaft shoulder end face of the shaft head, all contribute to improving the sealing performance.

Standard export wooden case packaging is utilized to ensure the integrity and safety of the valves during long-distance international shipping.

Ideal for chemical production processing aggressive media (sulfuric acid, chlor-alkali), pharmaceutical sterile transfer systems (GMP-compliant), and power plant flue gas desulfurization (FGD) systems handling limestone slurry.