PLVG, PLVL elastic seat seal eccentric plug valve is a new type of plug valve developed and produced by the company to introduce the latest international design concept and process technology. The elastic seat seal structure of the elastic seat seal eccentric plug valve overcomes the defects of poor sealing performance and easy rust of the traditional plug valve, and the unique core seal design greatly reduces the operating torque compared with the traditional plug valve, and minimizes the wear of the sealing surface, prolonging the service life of the valve. Rectangular straight-through abortion, small head loss, good flow adjustment linearity.