Super Wear Resisting High Pressure PE Multi Layer Composite Pipe

1.Product introduction

Super wear resisting high pressure PE multi layer composite pipe is a new type of wear-resisting material (modified polyolefin) and the products can be divided into two types according to their structure, namely the super wear-resisting composite pipe and high-pressure super wear-resisting multi-layer composite pipe. Thickness and strength of the super wear-resisting composite pipe comply with requirements in standards GB/T13663-2000 and Q/0881DHB003-2015, and its operating pressure is 0.8-1.6MPa; and, the thickness and strength of the high-pressure super wear-resisting multi-layer composite pipe comply with requirements in standards CJ/T189-2007 and Q/0881DHB001-2014 and its operating pressure is up to 7.0MPa.

2.Range of application Super wear resisting high pressure PE multi layer composite pipe

● Metal mines: transportation of coarse ores and tailings; 

● Coal mines: transportation of coal water slurry, coal washing sludge, mine fillings and coal powders, etc. 

● Dredging: river dredging and channel excavation, etc.; 

● Chemical engineering: pipes and elbows for transportation of silica powder, salt slurry and potash-bearing salts mixtures, etc.; 

● Coal-fired power plants: ash removal, slagging, powder feeding, return powder and desulfurization, etc.; 

● Metallurgy: blast furnace coal injection and slag handling, etc.; 

● Cement: transportation of raw slurry, pulverized coal and finished cement, etc.; 

● Foods: transportation of grains and husks, etc.;

● High wear resistance: its wear resistance is 3-4 times as high as the common ultra-high molecular weight polyethylene pipe is; 

●High corrosion resistance: resistant to acid, alkali, chemical and electrochemical corrosion; 

● Good weather resistance: when being buried underground, the pipe will not change its physical properties and be frost-cracked at a temperature as low as -40℃; 

● Good hydraulic performance: the smooth inner wall is low both in scaling and transportation resistance, enabling transport capacity of it to increase 20-30% than conventional pipes (e.g. steel pipe); 

● Easy installation: both the hot-melt connection, electric-melt connection and mechanical connection are acceptable, which saves both time and labor and quicken installation; 

●Good earthquake resistance: its high flexibility is more applicable for tensile and bending deformation caused by geologic changes; 

●High economic efficiency: service life is long and construction, maintenance and operation cost is low.

3.Wear resistance comparison of Super wear resisting high pressure PE multi layer composite pipe

Test the results according to Appendix B “Mortar Wear Rate Test Method” of QB/T 2668–2004 “Ultra-high Molecular Weight Polyethylene Pipe”.

4.Nominal pressure and nominal wall thickness of double-layer super wear-resisting composite pipe

5.Nominal pressure and nominal wall thickness of wire reinforced super wear-resisting composite pipe