Steel Reinforced Polyethylene (PE) Composite Pipe

Applications

Oil and Gas • Chemical Industry • Coal Mining Industry • Nuclear & Electric • Fire Water • Agriculture • Municipality • Highways • Submarine & Underwater Pipeline

Good Creep Strength 
Steel framed PE pipe can effectively control the creeping of plastic and endure high strength.

Impact Resistance 
Its axis is flexible, which make the impact resistance of steel framed PE pipe better than other plastic pipes.

Excellent Thermal Resistance 
In the event the temperature rises by 10℃, the strength of steel framed PE pipe decreases only by 5% according to the testing report; Impact Resistance: Mesh steel frame is a spiral winding structure.

Low Thermal Expansion Coefficient 
The thermal expansion coefficient of steel framed PE pipe is 35.4～35.9×10-6(1/℃), merely 3～3.4 times higher than that of carbon steel pipe and 1/3-1/4 times lower than that of PE pipe.

Excellent Hydraulic Performance 
No waxing, no scaling, smooth inside wall that keeps permanent distribution capacity

Good Rapid Crack Propagation Resistance 
Rapid crack propagation of steel framed PE pipe is 1.57 times as stable as that of PE pipe.

Economical alternative to excavation and replacement 
Ideal for closed system storm and sanitary sewers and culverts with limited access.

Good Abrasion Resistance 
Under the same conditions, the abrasion resistance ability of steel framed PE pipe is 1.6 times higher than that of steel pipe

National standard:GB50028-2002
《Code of urban gas supply》choose steel framed PE plastic pipe as one of four licensed pipe on urban gas pipeline construction(steel pipe, HDPE pipe, ductile iron pipe and steel framed PE plastic pipe）

Standard from ministry of housing and urban rural development：
— CJ/T 123-2004《Steel framed PE plastic pipe for water supply
— CJ/T 124-2004《Steel framed PE plastic pipe fitting for water supply
— CJ/T 125-2000《Steel framed PE plastic pipe for gas fuel supply
— CJ/T 126-2000《Steel framed PE plastic pipe fitting for gas fuel supply
—CECS 315：2012《Engineering technical regulation of steel framed PE plastic pipe

Standard from state petroleum and chemical industry ：
— HG/T 3690-2012《Steel framed PE plastic pipe for industry
— HG/T 3691-2012 《steel framed PE plastic pipe fitting for industry
— CECS 131-2002《Engineering technical regulation of buried steel framed PE plastic pipe

Standard of steel framed PE plastic pipe in mining industry
— MT181-88 《inspection regulation on safe performance of plastic pipe applied in coal mine
— Be approved by national mineral product safe remark office Q/AY   03—2004

Production Technique

The manufacturing procedure of SRPE is that welded steel mesh as skeleton composited with extruding plastic simultaneously at set molding machine. What is mean that by high grade low carbon steel wire as reinforcement skeleton and PE as basis, welds the steel wire into mesh structure though make-up machine, then it compositely extruded with melted PE on head of compound machine and continuously composite to its shape on production line, after the process of cooling, traction, cutting and sealing. It finally becomes end product of straight pipe.

Special Materials can be added into the ingredients to best suit the application requirement.

Inspection

The international top laboratories form many pipe industries have done broadly tests on this product that have been listed on technical report TR-4 of PPI list by United States Plastic Pipe Association, which means this product has been permitted to enter North American market;

The industrial standard by China’s ministry of construction and chemical industry is enacted and so is the South African National standard.

The application for ISO international standard has been listed on the agenda. Currently the production lines of this pipe have already been put into production in China and over ten thousand kilometer pipeline have been installed.