ABRASIVE RESISTANT DOUBLE PIPE

摘要

PROBLEM TO BE SOLVED: To stably use pipes in a slurry transportation over a long period by preventing ceramics from cracking. SOLUTION: In this abrasive resistant double pipe with inner peripheral wall reinforced by inserting the ceramic pipes 1 into a metal pipe 3, a spacer 4 of metal comprising a U-shaped ring in section and provided with an abrasion resistant coating layer 7 at a contact surface with a fluid is provided to a connection part between the ceramic pipes 1.