Air Lift Bags

DOOWIN pipeline buoyancy units were used for the world's first ultra-large and ultra-long HDPE double-tube shipping and installation. Recently, a super flexible HDPE submarine pipeline with a length of 558.2 meters and a weight of 1,315 tons was commercialized at the commercial port of the Saudi Arabian Sea City. It successfully adopted double-tube shipping to achieve seamless underwater docking and became the world's first super flexible HDPE submarine pipeline. Double [...]

From the news of CHEC Jazan Integrated Gasification Combined Cycle Project water intake and outlet project Saudi Arabia, the last part HDPE pipeline was jointed underwater successfully with the help of mono buoyancy units.  It marks the success of the installation of the world’s longest and most flexible pipeline. HDPE pipeline installation is the biggest risk point of whole project. Because it is the first world’s largest diameter and [...]

Recently, we designed one kind new arc-shaped pipe float buoys. This type pipe float buoys can connect with the pipe closer to get more buoyancy in the shallow water condition. We can make pipe float buoys according to the different diameter pipe. The buoyancy is from 1ton to 10ton each unit. Arch-shaped pipe floater has three lifting webbing sling. So pipe laying float can be strapped to the pipeline to reduce [...]