The application of double flange limit electric ball valve in the construction process The double flange limit electric ball valve is generally used in the construction process. With the increasing degree of urban reconstruction, the double flange limit electric ball valve is no longer so mysterious, but it is mainly used in the pipeline system, long-distance pipeline for ground settlement, and some irresistible factors in the construction, It is difficult to ensure the axial concentricity of the pipeline, so the installation of electric ball valve in the pipeline system can avoid the compression or stretching of the pipeline axial thrust where the axial concentricity of the pipeline deviates, and prevent the pipeline from leaking and cracking. As the stress on the pipeline is reduced, the pipeline is ensured to be unblocked, and the electric ball valve has the function of compensating the axial displacement of the pipeline. In popular terms, it is to disperse the pressure to prevent the pipeline from breaking due to too much stress.