Gas Drainage Plastic Coated Steel Tube Spiral Welded Corrugated Steel Pipe

Basic Information
Place of Origin: China
Brand Name: NO
Certification: NO
Model Number: DN100mm~DN1000mm
Minimum Order Quantity: 1pc
Price: Negotiation
Packaging Details: Seaworthy Packing
Delivery Time: 30-60 days
Payment Terms: L/C, T/T
Supply Ability: 500pcs per month
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Detail Information
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
High Light:

plastic coated steel tube


powder coated steel pipe

Product Description

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).
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

DN internal coating external coating
Ordinary level Reinforcement level polyethylene epoxy resin
Ordinary level Reinforcement level Ordinary level Reinforcement level
15 >0.4 >0.3 >0.5 >0.6 >0.3 >0.35
80 >0.5 >0.35 >0.6 >1.0 >0.35 >0.4
200 >0.6 >0.8 >1.2
350 >1.3
550 >0.8 >0.4 >1.0 >1.5 >0.4 >0.45
800 >1.0 >0.45 >1.2 >1.8 >0.45 >0.5
Remarks Seamless 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

Item Requirement Test method
Density(g/cm2) 1.3~1.5 GB/T 1033
Particle size distribution /% 150um≤3;250um≤0.2 GB/T 6554
nonvolatile content /% ≥99.5 GB/T 6554
Horizontal liquidity /mm 22~28 GB/T 6554
Gelation time /s ≤120(200℃) GB/T 6554
impact strength /(kgcm) ≥50 GB/T 1732
Bending test /(¢2 mm) pass GB/T 6742
Hygienic performance Conform to GB/T 17219


Properties of Polyethylene Powder

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


Contact Details

Phone Number : 86-371-53378091