Desulfurization butterfly valve

      The desulfurization butterfly valve is specially designed for desulfurization and denitrification engineering, which not only meets the corrosion and wear of desulfurization slurry to the valve, but also ensures that other parts are not corroded by limestone (or lime paste) slurry. By changing the valve plate seal ring, O-ring, butterfly plate, shaft and other materials, it can be applied to a variety of media and different temperatures. Valve automatic control equipment is equipped with high-quality electric actuator or double acting pneumatic actuator, which can realize automatic and manual double opening and closing functions. The unique valve seat design of desulfurization butterfly valve completely separates the valve body from the fluid medium. Compared with other similar valves, it has better seat firmness, quick replacement of valve seat, zero leakage and small friction. The diameter is larger than DN200. It is driven by worm gear, which is more convenient to open.
      According to the physical and chemical characteristics of different media, the corresponding butterfly plate and valve seat materials can be selected to achieve different characteristics of high temperature resistance, low temperature resistance, corrosion resistance, light resistance and aging resistance.
     High temperature electrostatic spraying epoxy resin powder coating can be used on the inner and outer surface of nodular cast iron butterfly plate. The coating has high corrosion resistance and high bonding strength with nodular cast iron matrix. The coating degree is 0.2-0.5mm
    The valve plate of butterfly valve is made of high-performance alloy dual phase steel 2507, 1.4529 and other super corrosion-resistant alloys, which can effectively resist the corrosion and wear of slurry, and can be used in higher ambient temperature.
    Main parts materials of desulfurization butterfly valve
    Valve body gray iron, ductile iron, carbon steel
    Butterfly plate carbon steel coated rubber, carbon steel coated fluoroplastic, stainless steel duplex stainless steel plate 1.4529, C276
   Valve seat natural rubber, EPDM, rubber
   Stem stainless steel, 2Cr13, 304