Abrasionproof decreases feedwater socket joint formula welding steel pipe

The utility model belongs to the technical field of pipe connection structure, especially, relate to an abrasionproof decreases feedwater socket joint formula welding steel pipe, including setting up tube end and the interface at steel pipe both ends, tube end's internal diameter is greater than the external diameter of interface, the interface of a steel pipe inserts the tube end of another steel pipe, be equipped with the mounting groove on its characterized in that tube end's the internal surface, the embedding has the triangle rubber ring in the mounting groove, triangle rubber ring and mounting groove interference fit, be equipped with ebonite subtotal flexible glue part on the triangle rubber ring, be equipped with the metal protection cap on the pipe wall of steel pipe, the metal protection cap passes through wire ground connection, and the metal protection cap is equipotential connection with the steel pipe outer wall, the steel pipe inner wall is equipped with the inner liner, the inner liner is clos