Product introduction

Underground Coal mine coating composite steel pipe is using the special processing, inner steel pipe, coating a special polyethylene plastic powder or epoxy resin powder material on the surface ,it's antistatic, flame-retardant, anti-corrosion properties of composite products, the product are overcome to rust, corrosion, high pollution dyes and plastic pipe of low strength, and easy deformation and other defects, it has both advantages of steel and plastic products, which are focus on energy saving and environmental protection products.

Performance characteristics

 high pressure bearing, good mechanical performance

The pipe continues steel pipe's advantages, high mechanical strength, impact bending, has a strong bearing capacity.

 strong chemical corrosion resistance

The pipe has both advantages of steel and plastic pipe, plastic coating has strong corrosion resistance, suitable for coal mine conveying sulfur, calcium, magnesium, and other corrosive medium fluid. The products can be flanged coating, tees, elbow, pipe fittings are embalmed and plastic coated to ensure the antiseptic effect;

 coating adhesion

Pipe using physical special treatment process, pretreatment to sa 2.5 standards, the scientific technology and advanced equipment to ensure the quality of the coating, the adhesion was significantly higher than the national standard;

no fouling, small fluid resistance

Surface coating pipes in dense, none fouling, friction coefficient and roughness is less than common steel pipe, which is environmental friendly and competitive price.

  Retardation, antistatic

Pipe using special antistatic, flame-retardant polyethylene powder or epoxy resin powder coating uniformity in coating on the pipe surface and inner layer, in full compliance with MT181 requirements;

 multiple connection, convenient install

The quick coupling fitting, flange connections, convenient installation, reliable performance;

According to user requirements with different coating materials and colors

The main way of coating for inner and outer pipe polyethylene coating, epoxy resin coating, inside epoxy and outside PE, or outside is PE coating inner is epoxy coating and other coating process.

Field of application

steel composite pipes is widely used in coal mine for water supply and drainage, gas drainage, ventilation and slurry spraying, low medium and high pressure fluid or gas medium coating .

The implementation of standards

MT181-1988 "mine plastic pipes for safety performance inspection specification";

"CJ/T120-2008" plastic coating steel pipe for water supply;

Q/DH07-2012 "Polyethylene used in underground coal mines (or epoxy resin coated steel composite pipe)" (Industry standard).