an abrasion resistant bend or elbow like construction for small pipelines of relatively small , i . e ., 2 to 8 inch , inside diameter is formed of soft , ductile metal , normally mild steel . the outside bend portion most subject to abrasive attack is prefitted prior to use with a frame and cover arrangement which receives , maintains and provides a dustproof and pressure tight cover over a plurality of ceramic wear liners which receive the abrasive attack after the metal forming the outside bend portion is worn away in use .