HDPE Lining Malaysia

HDPE Lining

The popularity of High Density Polyethylene (HDPE) is primarily due to its low initial material cost and excellent chemical resistance. This allows thicker sections to be used compared to other geomembrane materials. A thick, durable, HDPE Lining can be placed in exposed applications where the cost of other materials may be prohibitive. HDPE has excellent chemical resistance which is often the driving force behind the selection of HDPE. HDPE is a field assembled lining material that cannot be practically fabricated in the shop. All HDPE projects, regardless of size, must be installed by trained installers. HDPE is a versatile material which is used widely across all applications. One of the main uses of HDPE is for landfill base liners where its chemical resistance is used to good effect. HDPE can also be used in a multitude of secondary containments, pond linings, and water containment projects. HDPE is best used as an exposed lining material, and has the UV resistance required for many years of outstanding service.

The process involves the insertion of a tight-fitting high density Polyethylene (HDPE) liner pipe inside of a steel pipe. This takes advantage of the mechanical strength of the steel pipe combined with the abrasion and corrosion resistance of the HDPE Lining pipe. Because of the tight fitting design, the liner pipe is radially compressed (rolled down) to reduce its outside diameter during the insertion process. Insertion lengths can vary from short pull lengths to long pull lengths of up to 1,500 meters, depending on the pipe diameter and topographical contour of the pipeline.

The roller reduction method involves the radial compression of the HDPE Lining pipe by passing it through a series of roller reduction units during the insertion process. Once installed, the HDPE Lining expands within the steel pipe and fits tight against the pipe wall.