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Your present location:HomeProductsUHMWPE-steel composite pipes > Lined Steel UHMWPE Pipe
  • Product name: Lined Steel UHMWPE Pipe
  • item No: 4010

 

           

 

Produce process of UHMWPE -steel Pipe :

UHMWPE composite pipe is made of UHMWPE pipe and carbon steel pipe.

Its outer layer is the steel pipe with flange as the pressure standing protective layer, UHMWPE pipe is lined inside as wear layer, anti corrosive pipe with extremely smooth surface. The inner UHMWPE pipe is extended out of the outer layer of carbon steel pipe and flanged as connection of pipe.

1. High wear resistance, the wear resistance is 4 to 7 times of Q235 steel pipe, 10 times of HDPE, it has the smallest friction coefficient in plastic ranks

2. High impact strength, is 5 times of oridinary PE pipes, 4 times than HDPE, 2 times of polycarbonate pipe, and 10 times of PTFE pipe

3. Low-energy, high self-lubrication and not adhesion, friction coefficient of only 0.006, the UHMWPE pipe can save energy of 20% under the same flow rate

4. Without scale sediment/no-scale, surface roughness of Ra0.00022, no dirt, no bacterium in long term service

5. High weatherability, the molecular weight of UHMWPE is more than 2 million, as saturated molecular structure, it has strong ability of aging under ultraviolet light , and mechanical properties is stable if not lower than -70

6. No pipeline leakage, electric melting connection make the pipeline without funnelled

7. Cost-saving, Maintenance-free: small working face, low requirement of foundation, and with the performance of wear-resisting, corrosion resistance, frost resistance and anti-pollution, etc, after the operation, the pipe do not need to make daily maintenance, such as anti-rust and freeze-proofting, descaling, etc, and maintenance cost can be saved by more than 95%.

8. Non-toxic, odourless and high environment protection: it has smooth surface, will not be microbial adhesion in the ocean or sewage engineering, and ensure the stability of water quality

9. High toughness, breaking elongation350%, without fracture by charpy impact test

10.High corrosion resistance, as saturated molecular structure, it has high chemical stability

 

Performance of UHMWPE Pipe

 

Item

Test Method

Unit

Uhmwpe pipe

Hdpe pipe

Steel pipe

Viscosity-average

Molecular Weight

ISO1628-3

104g/mol

300-1050

50

--

Approx Melting

Temperature

ISO11357.3

136

1129

1410

Water Absorption

ISO62-1999

%

0.01

0.01

--

Coefficient of liner thermal expansion

ISO11359-2

10-4/℃

1.5

1.2

0.17

Density

ISO1183-1-2004

g/cm3

0.935-0.945

0.940

7.8

(0.45Mpa)

Head deformation tempat

ISO75

85

71

1230

Tensile strength

ISO527

Mpa

39

25

550

Yield strength

ISO527

Mpa

≥22

20

≥245

Tensile elongation

ISO527

%

≥250

≥350

20

Gap beam impact

Strength

ISO179

KJ/m2

No fracture

27

No fracture

Rockwell hardness

ISO2039-2

R

40

33

45(C)

Friction coefficient

ISO8295

--

0.05-0.11

0.28

0.58

Mortar wearindec

--

--

1

10

7

Scaling

--

--

No scaling

Slight

Heavy

Corrosion resistance

--

--

excellent

Common

Bad

 

        

UHMWPE lined steel pipe combinds advantages of both UHMWPE and steel which make it wear resistant, impact resistant, anti-corrosion, resistant to high pressure, self-lubricating, impact resistant.

The pipeline equipments are widely used in dredging, mining, power plant,etc.

Chemical industry:the transmission of sand slurry, mud,

Thermal power system:powder and coal ash conveying

Mining industry:backwater pipelines, mine tailings and slurry transmission

Coal industry:high-pressure transport of pulverized coal and coal-water slurry of coal preparation plant

And the transport of mud and corrosive media with slag in other industries

 
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