... , oil, cement, mud suction/ discharge/ dredging HDPE Pipe for dredger is most suitable for mud & sand delivery and discharge, the performance is as follows ... -aging, and it can be used for 5-8 years upon sand content.4. HDPE Pipe is assembled with two metal activity ... changes in temperature.6. HDPE Sand Delivery Pipe is either on land or water for using, total engineering cost is low, high ...