The PUCEST blow-in arch is used for conveying sand and fine-grained gravel. The conveying material collects in the honeycomb-shaped pockets and thus also serves as wear protection. The blowing bend consists of a 90° bend, which is bolted to the pipe ends with 2 flange rings and 8 hexagon bolts. In the conveying direction there are
the honeycomb-shaped pockets that collect the material.