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  • Product name: UHMWPE Pipes in Marine & Dredging
  • item No: 4009


Ultra-high molecular weight polyethylene (UHMWPE) is a kind of engineering thermoplastics with more than 3 million viscosity-average molecular weight. It differs from PE standard grades in its very high degree of polymerization. Ultra-high molecular weight polyethylene pipe has superior performance over conventional HDPE pipe such as very high wear resistance, impact resistance, intrinsically self-lubricating, anti-adhesion, low temperature resistance and excellent chemical resistance.

UHMWPE pipe has excellent wear resistance, compare with the traditional dredging steel pipe, its conveying flow is 4 times than steel pipe (it means the life time is 4 times than steel pipe), can effectively reduce the pipe replacement frequency and save the maintenance cost in the process of construction. Because of low roughness, 20% energy will be saving than the steel pipe when running, reduce the operating cost. Light weight, strong flexibility,can greatly reduce the cost of installation, improve the comprehensive benefit of construction.


Characters of UHMWPE Pipe 

1. Abrasion resistance – UHMWPE pipes have excellent abrasion resistance providing long life in abrasive slurry applications
2. 5x lower surface roughness (ISO 8295)
3. Increased temperature capability (particularly in the lower range), capable of -70 to +80 deg C operation
4. Comparable elongation performance
5. Anti-aging agent reduce UV degradation by comparison and otherwise increases design life
6. Colourless, odourless and non-toxic
7. Formed flanges, allowing for clean alignment. Mn16 inserts used at flange end to reduce turbulence down the pipe or bend
8. Much higher corrosion resistivity, comparable to Teflon 
9. Higher tensile and yield tolerances
10. Adders can be provided that make UHMWPE flameproof (allowing for minimal degradation in environments where this is a factor, UHMWPE will still ignite at 300 deg C, but will immediately self-rectify)
11. Lighter and more durable, allowing for heavily reduced installation costs as large excavation and crane equipment will no longer be required
12. Unlike other materials, UHMWPE is self-lubricating (part of why it is used as a ball material for hip joint replacement)
13. All this allows UHMWPE to improve on ANY process currently utilising HDPE and most that include Steel

Product is checked and re-checked at every stage to ensure fault-free performance




DRAGON UHMWPE pipes in Marine & Dredging

Mine Industrial: mineral mud conveying, high pressure water supply, gas supply pipeline underground coal mine.

Electric Power System: fly ash conveying of power plant, chemical water cycle and sulfur removal system 

Coal Mine Industry: coal powder/ pulverized coal,coal water slurry transportion, mine air supply, ventilation and drainage systems , and the desulphurization system

Chemical Industry: transmission of high corrosive medium, like strong acid, strong alkali, etc and conveying of bittern, salt slurry, crude salt of salt chemical 

Oil exploitation:transportation of crude oil and natural gas, waste water reinjection

Metallurgy Industry: conveying of coke powder, mineral powder, pulp and oil refining slag   

Dredging Projects: dredging work, sediment transportation of the river, lake, sea port, wharf, etc 

Marine Engineering: conveying of seawater, fresh water in desalination process


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