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Gas Drainage Plastic Coated Steel Tube Spiral Welded Corrugated Steel Pipe

Categories Steel Plastic Composite Pipe
Brand Name: NO
Model Number: DN100mm~DN1000mm
Certification: NO
Place of Origin: China
MOQ: 1pc
Price: Negotiation
Payment Terms: L/C, T/T
Supply Ability: 500pcs per month
Delivery Time: 30-60 days
Packaging Details: Seaworthy Packing
Pressure Grade: - 0.097 - 1.0 MPa
Size: DN100mm~DN1000mm
Horizontal liquidity: 22~28
Particle size distribution: 150um≤3;250um≤0.2
Usage: Gas Drainage in Coal Mine
Market: all over the word
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    • Product Details
    • Company Profile

    Gas Drainage Plastic Coated Steel Tube Spiral Welded Corrugated Steel Pipe

    Gas Drainage Plastic Coated Steel Tube Spiral Welded Corrugated Steel Pipe


    Mine pipe refers to a product specially developed for special underground environmental conditions, which has the advantages of flame retardant, antistatic, corrosion resistance, long service life and strong safety. It is mainly used in five systems: mine drainage pipe (KS), mine grouting pipe (KJ), mine positive pressure air pipe (KFZ), mine negative pressure air pipe (KFF), mine gas drainage pipe (KW).

    size:HOSP-TEP(PE)-KW(-0.097)/101.6~1118

    size:DN100mm~DN1000mm

    Pressure Grade
    Pipeline for gas drainage in underground coal mine, bearing pressure - 0.097 - 1.0 MPa.

    Performance characteristics

    1) Light weight of pipe: the base pipe is spirally welded corrugated steel pipe, which is thinner than other pipes of the same specification and type. It greatly reduces the weight of pipe and is convenient for transportation and installation in underground coal mine. It reduces the labor intensity and improves the construction efficiency.


    2) High stiffness of pipe ring: high negative pressure performance, ring stiffness to meet SN16.


    3) Chemical corrosion resistance, weathering resistance and aging resistance are very high: the coating can prevent metal oxidation, and has the corrosion resistance of acid, alkali and salt. The product has excellent anti-aging performance, and its service life is much higher than other pipes. The product can be painted with flange to ensure the anticorrosion effect of the whole pipeline.


    4) Flame retardant and antistatic performance is good: flame retardant and antistatic indicators meet the requirements of underground gas drainage pipe indicators. Flame retardant: The arithmetic average of flameless combustion time is less than 3S and the maximum is less than 10s; the arithmetic average of flameless combustion time is less than 20s and the maximum is less than 60s. Antistatic: internal and external surface resistance≤1.0×106Ω


    5) Good hygienic performance, low fluid resistance: in line with the drinking water standards of the Ministry of Health, no fouling, no breeding of microorganisms, no secondary pollution of fluids. The inner wall is smooth and the conveying efficiency is high.


    6) Connection modes are diversified and easy to construct: Flange connection and butt welding connection can be used for products. Connection modes are diversified and installation is convenient.


    7) Internal and external coatings can be made of different materials or colors according to customer's service environment and requirements.


    8) Coating adhesion is strong: physical method is used for advanced treatment of the base pipe. The pretreatment meets Sa2.5 standard. Microcomputer is used for automatic preheating control and production. Coating adhesion is higher than national standard.



    National Standard Specification and Coating Thickness

    DNinternal coatingexternal coating
    Ordinary levelReinforcement levelpolyethyleneepoxy resin
    Ordinary levelReinforcement levelOrdinary levelReinforcement level
    15>0.4>0.3>0.5>0.6>0.3>0.35
    20
    25
    32
    40
    50
    65
    80>0.5>0.35>0.6>1.0>0.35>0.4
    100
    125
    150
    200>0.6>0.8>1.2
    250
    300
    350>1.3
    400
    450
    500
    550>0.8>0.4>1.0>1.5>0.4>0.45
    600
    650
    700
    750
    800>1.0>0.45>1.2>1.8>0.45>0.5
    850
    900
    1100
    1200
    1400
    1600
    RemarksSeamless steel pipe, spiral welded pipe and straight welded pipe can be selected as the base pipe, and the thickness of plastic coating can be processed according to customer's requirements.



    Properties of Epoxy resin powder

    ItemRequirementTest method
    Density(g/cm2)1.3~1.5GB/T 1033
    Particle size distribution /%150um≤3;250um≤0.2GB/T 6554
    nonvolatile content /%≥99.5GB/T 6554
    Horizontal liquidity /mm22~28GB/T 6554
    Gelation time /s≤120(200℃)GB/T 6554
    impact strength /(kgcm)≥50GB/T 1732
    Bending test /(¢2 mm)passGB/T 6742
    Hygienic performanceConform to GB/T 17219


    Properties of Polyethylene Powder

    ItemRequirementTest method
    Density(g/cm2)>0.91GB/T 1033
    tensile strength /MPa>9.80GB/T 1040
    elongation at break /%>300GB/T 1040
    vicat softening point /℃>85GB/T 1633
    nonvolatile content /%>99.5GB/T 2914
    Hygienic performanceConform to GB/T 17219

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