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  • HDPE Mining Pipe

    HDPE Mining Pipe

    Applications:

    The products are widely used as coal mine's water supply and drainage pipe, mining positive and negative pressure ventilation pipe, mining spray pipe, mining gas drainage pipe and so on.


    Properties:

    Project Unit
    Experimental conditions Indications
    Percentage elongation at break 
    %

    ≥300
    Anti-hydraulic strength MPE80
    20℃, 100h, 9.0Mpa
    No broken
    MPE100
    20℃, 100h, 9.0Mpa
    No broken
    Antistatic properties NH-VV22 The average of the outer surface resistivity Ω
    23℃, 65% Relative  humidity
    ≤1.0*109
    The average positive pressure ventilation surface resistance, spray tube inside and out side Ω
    23℃, 65% Relative  humidity
    ≤1.0*108
    The average gas pipe surface resistance Ω
    23℃, 65% Relative  humidity
    ≤1.0*106
    The average surface resistance tube Ω
    23℃, 65% Relative  humidity
    ≤1.0*106
    Retardant properties 3+1, 3+2, 4+1 S

    Flame height:150mm

    Temperature: 960℃

    Flameless combustion

    1 pc≤10s, 6 pc ≤18s

    3+1, 3+2, 4+1 S Flame height:150mm

    Temperature: 960℃


    Flamless combustion

    1 pc≤60s, 6 pc ≤120s




    Specifications:

    DN(mm) Wall Thickness(mm)
    0.6Mpa 0.8Mpa
    1.0Mpa
    1.25Mpa
    1.6Mpa
    32 - - - - 3.0
    40 - - - - 3.7
    50 - - - - 4.6
    63 - - - 4.7 5.8
    75 - - 4.5 5.6 6.8
    90 - 4.3 5.4 6.7 8.2
    110 4.2 5.3 6.6 8.1 10.0
    125 4.8 6.0 7.4 9.2 11.4
    140 5.4 6.7 8.3 10.3 12.7
    160 6.2 7.7 9.5 11.8 14.6
    180 6.9 8.6 10.7 13.3 16.4
    200 7.7 9.6 11.9 14.7 18.2
    225 8.6 10.8 13.4 16.6 20.5
    250
    9.6 11.9 14.8 18.4 22.7
    280 10.7 13.4 16.6 20.6 25.4
    315
    12.1 15.0 18.7 23.2 28.6
    355 13.6 16.9 21.1 26.1 32.2
    400 15.3 19.1 23.7 29.4 36.3
    450 17.2 21.5 26.7 33.1 40.9
    500 19.1 23.9 29.7 36.8 45.4
    560 21.4 26.7 33.2 41.2 50.8
    630 24.1 30.0 37.4 46.3 57.3
    710 27.2 33.9 42.1 52.2 -
    800 30.6 38.1 47.4 58.8 -
    Carried Standard: MT558.1 - 2004

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