DN1600 Large size eccentric butterfly valves

Specifications:

Material:

Features:

The double eccentric seal structure has a dimension A offset between the valve stem axis and the butterfly plate sealing surface, and a dimension B offset from the valve body channel axis. When the butterfly plate opens from 0° to 90°, the sealing surface of the butterfly plate will separate from the sealing surface of the valve seat faster than the single eccentricity. When the butterfly plate rotates from 0° to 8° to 12°, the sealing surface of the butterfly plate can* It is separated from the sealing surface of the valve seat, so that during the opening and closing process of the butterfly valve, the relative mechanical wear between the butterfly plate and the sealing surface of the valve seat is shorter, and the extrusion angle stroke is shorter, so that the mechanical wear and extrusion deformation are further reduced, and the butterfly valve's Sealing performance and service life are further improved.

     1. Using a "U"-shaped stainless steel sealing ring, the valve seat has a certain degree of elasticity. It has excellent sealing performance with the butterfly plate regardless of high or low temperatures.

     2. It is a metal-to-metal wire-sealed butterfly valve. The sealing surface of the butterfly plate is made of surfacing stainless steel or surfacing hard alloy. The sealing surface is wear-resistant and has a long service life.

     3. The butterfly plate streamline design, through rod, wear-resistant sleeve and other parameters make this butterfly valve have excellent sealing performance, temperature resistance, pressure resistance, wear resistance and corrosion resistance.

     4. The valve can be designed with flange connection and wafer connection.

5. The driving mode can be manual, electric or pneumatic.