Due to the adoption of the central-axis sealing structure, BAOYI lined butterfly valve has reliable forced seal, and the product design can meet such relevant standards as API 609 and EN 593. Generally, the product can be widely applied in the systems for petroleum, chemical product, chlor-alkali, pharmacy, food, environment protection, urban water supply and drainage, etc., especially in the industrial occasions involving the strong corrosive medium to adjust flow rate and connect or cut off the medium.

·The product has split combination valve body and integral lining structure, without any external leakage;
·Full-lining or semi-lining structure can be selected for the valve body;
·The lining material has the features of corrosion resistance, difficult aging and automatic wear compensation;
·Multistage loading elastic seal combination is adopted to realize two-way zero leakage;
·With the streamline design, the butterfly plate has small fluid resistance;
·Flange sealing gasket is not needed for installation.