The carbon steel flange itself has a compact structure, simple structure, and easy maintenance. The sealing surface and spherical surface are often in a closed state, which is not easily eroded by the medium and is easy to operate and maintain. It is suitable for general working media such as solvents, acids, water, and natural gas. A flange made of carbon steel is called a carbon steel flange. The surface of the carbon steel flange itself is flat and smooth, without burrs, scratches, warping, bumps, and other conditions.
The steel plate should undergo ultrasonic testing, and if there are no delamination defects, it should be cut into strips along the rolling direction of the steel, bent and welded into a circular ring, and the surface of the steel should form a cylindrical ring. It is not allowed to directly machine steel plates into butt welds with neck flange rings, and full penetration welds should be used; The use of carbon steel bolts does not necessarily require the addition of insulation gaskets and sleeves. The addition of insulation gaskets and sleeves is only used in situations where there is a possibility of electrification or where the fluid inside the pipeline is flammable and explosive. In such situations, stainless steel bolts should also be equipped with insulation gaskets and sleeves.