A Multi pieces body designed valve means the valve has a body which joint from several different pieces, commonly the body pieces are connected by bolts and sealed by gaskets. Such valve body construction way can present many complicated body design shape and ports design.  And it can bring many designs for the valve accessoriesmaterial, thus it can be designed to used in high temperature and high pressuresituations.

Ball Valve Full Weld One Piece

Butterfly Valve Single Piece Body

Single Piece Ball Valve