Butterfly valve of a general mounting structure

Abstract

The utility model relates to valve technical field, concretely is a transformer butterfly valve of general installation structure, including isomorphic butterfly valve body and three groups of replaceable bolt groups, the outer ring of isomorphic butterfly valve body is equipped with 8 groups of compound hole position, each group compound hole position contains special-shaped step hole and circular step hole, the bottom of special-shaped step hole and circular step hole all is provided with circular through -hole, and the distribution of 8 groups of compound hole position can cover 12 holes and 8 holes inner thread flange and 8 holes conventional flange bolt installation point position, three groups of replaceable bolt groups are conventional bolt, circular step bolt and special-shaped step bolt respectively, and three bolt groups can be matched with compound hole position respectively, realize the adaptive installation with different type transformer flange. The compound hole position of isomorphic butterfly valve body outer ring circumferential even distribution can accurately cover all bolt installation point position of 12 holes inner thread flange, 8 holes inner thread flange and 8 holes conventional flange. Compared with traditional butterfly valve can only adapt single type flange.