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Steel Skeleton Polyethylene Plastic Composite Pipe
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Steel Skeleton Polyethylene Plastic Composite Pipe

The steel skeleton polyethylene plastic composite pipe is a new type of double-sided anti-corrosion pressure pipe that is continuously formed on the extrusion production line with high-quality low-carbon steel wire as the reinforcing phase and pipeline-grade polyethylene as the matrix. The anti-wear performance is 4 times that of steel pipes.

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    product details

    ApplicationApplication

    Steel Skeleton Polyethylene Plastic Composite Pipe0
    01
    7 Jan 2019
    Urban water supply and drainage.
    Gas transmission pipelines.
    Highway buried drainage channel.
    Conveying of sewage and oil-gas mixtures.
    Tertiary oil recovery and gathering and transportation process pipelines.
    Corrosive media discharge pipes.
    Power engineering water, return water, water supply, fire water, dust removal, waste residue and other transportation pipelines.
    Metallurgical mines, corrosive media and slurry transportation.
    Seawater transportation and submarine pipelines, optical cable (cable) conduits, etc.
    Ship's internal pipes.
    Agricultural sprinkler irrigation system.
    Shipbuilding and thermoelectric engineering.

    PROPERTIESPROPERTIES

    Characteristics

    Requirements

    Thermal stability (oxidation induction time) 200 ℃

    ≥20min

    Compression cracking stability

    No cracks

    Longitudinal dimension retraction 110 ℃,hold 1 h

    ≤0.4%

    Short-term hydrostatic strength 20 ℃，1 h Pressure: PN×2.0

    No cracks, no leaks

    Hydrostatic strength 80℃，165 h Pressure: PN×1.5×0.6

    No cracks, no leaks

    Burst strength Continuous boost to blasting(20 ℃)

    The bursting pressure is not less than PN×3

    E≥3.5  GJ/m² Weatherability (non-ferrous tubing only)

    		 After climatic aging, the following properties should meet the requirements: thermal stability (200 °C) ≥ 20 min

    Product performanceperformance

    Inner diameter series

    Nominal inner diameter DN/ID /mm

    Average inner diameter Allowable deviations /%

    Nominal pressure, PN/MPa

    The distance from the steel wire to the inner and outer walls /mm

    1.0

    1.6

    2.0

    2.5

    4.0

    The wall thickness and limit deviation of the main body of the pipe/mm

    50

    ±1

    -

    -

    -

    9.00＋1.4

    10.60＋1.6

    ≥1.8

    65

    -

    -

    -

    9.00＋1.4

    10.60＋1.6

    80

    -

    -

    -

    9.00＋1.4

    11.70＋1.8

    100

    -

    9.00＋1.4

    9.00＋1.4

    11.70＋1.8

    11.70＋1.8

    125

    -

    10.00＋1.5

    10.00＋1.5

    11.80＋1.8

    12.30＋1.8

    150

    12.00＋1.8

    12.00＋1.8

    12.00＋1.8

    12.00＋2.4

    15.50＋2.6

    200

    12.00＋1.8

    12.00＋1.8

    12.50＋1.9

    12.50＋1.9

    -

    250

    ±0.8

    12.00＋1.8

    12.50＋1.9

    12.50＋1.9

    13.00＋2.0

    -

    ≥2.5

    300

    12.50＋1.0

    12.50＋1.9

    12.50＋3.2

    -

    -

    350

    15.00＋2.4

    15.00＋2.4

    15.50＋2.6

    -

    -

    400

    ±0.5

    15.00＋2.4

    15.00＋2.4

    15.50＋2.6

    -

    -

    ≥3.0

    450

    15.50＋2.6

    16.00＋2.6

    16.50＋2.6

    -

    -

    500

    15.50＋2.6

    16.00＋2.6

    16.50＋2.6

    -

    -

    600

    19.00＋3.0

    20.00＋3.0

    -

    -

    -
    Note:D When N≥250 and PN≥2.0, the wall thickness is thickened inward due to the increase of PN, and the minimum average inner diameter is allowed to fluctuate down by no more than 1.5mm compared to the value in the table.
    The main body of the pipe refers to the part of the pipe body that is subjected to all internal pressure.

    Industrial steel skeleton polyethylene plastic composite pipe
    DN mm Wall thickness mm ≥ weight (kg/m) Nominal pressure /MPa Operating temperature /℃ Bend radius /m ≥ Shelf space spacing /m ≤ Thermal conductivity /(w/m℃) Linear expansion Expansion factor (1/℃)
    50 11 4 2.5、4.0 0~70 4 2.5 0.43 3.6×10-5
    65 11 5 0~70 5 2.5
    80 12 6 0~70 6 3.0
    100 12 8 1.6、2.0、2.5、4.0 0~70 8 3.0
    125 12 10 0~70 10 3.5
    150 12 11 0~70 12 3.5
    200 12.5 15 1.6、2.0、2.5 0~70 20 4.0
    250 12.5 18 1.0、1.6、2.0、2.5 0~70 25 4.0
    300 12.5 22 1.0、1.6、2.0 0~70 30 5.0
    350 15 28 0~70 38 5.0
    400 15 32 0~70 44 5.0
    450 16 43 0~70 50 5.0
    500 16 50 0~70 55 5.0
    550 18   1.0、1.6、2.0 0~70 60 5.0
    600 20 76 1.0、1.6 0~70 66 6.0
    650 22   1.0、1.6 0~70 130 6.0    
    700 24   1.0、1.6 0~70 140 6.0    
    750 24   1.0、1.6 0~70 150 6.0    
    800 24   1.0、1.6 0~70 160 6.0  

    Steel skeleton polyethylene plastic composite pipe for water supply
    DN mm Wall thickness mm ≥ weight (kg/m) Nominal pressure /MPa Operating temperature /℃ Bend radius /m ≥ Shelf space spacing /m ≤ Thermal conductivity /(w/m℃) Linear expansion Expansion factor (1/℃)
    50 11 4 2.5、4.0 -20~80 4 2.5 0.43 3.6×10-5
    65 11 5 -20~80 5 2.5
    80 12 6 -20~80 6 3.0
    100 12 8 1.6、2.5 -20~80 8 3.0
    125 12 10 -20~80 10 3.5
    150 12 11 1.0、1.6 -20~80 12 3.5
    200 13 15 -20~80 20 4.0
    250 13 18 -20~80 25 4.0
    300 13 22 -20~80 30 5.0
    350 15 28 -20~80 38 5.0
    400 15 32 -20~80 44 5.0
    450 16 43 -20~80 50 5.0
    500 16 50 -20~80 55 5.0
    600 20 76 1 -20~80 66 6.0

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