Large Diameter Steel Reinforced Corrugated Plastic Pipe For The Buried Sewer

Sichuan Goldstone Orient New Material Equipment Co , Ltd
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Steel Composite Pipe

In principle, if the soil is in good geological condition and the pipe is installed with correct process, then under the soil-pipe interaction, even the plastic sewage pipe has low ring stiffness; it could be also used safely. The evaluations of pipe stiffness please refer to “The Design of Buried Thermoplastics Pipe (1999)” which was published by TEPPFA (European Thermoplastics Pipe and Fitting Association) and APME (Association of Plastics Manufactures in Europe). However, a number of failure evidences tell us that the main reason of pipe bulking is using the low stiffness pipe. So if the project adapts low stiffness pipes, the requirements of the soil quality, installation quality and loading of the pipe are very restrictive, any tiny mistake may bring the fatal failure risk. In another hand, the high ring stiffness buried pipe can reduce the risk of the pipe failure.

The elastic modulus of carbon steel is about 190,000 Mpa, while the polyethylene is only about 800Mpa; the steel EP value is almost 200 times higher than polyethylene. As well, the price of steel is half of the polyethylene. So if we can combine the advantages of two kinds of materials, steel and plastic, that will be an ideal solution to get a perfect pipe with high stiffness and less cost. The question is how to compose two kinds of materials in a good way, keep their advantages but avoid the defects, let them complement each other. There are many manufacturers are researching the answer, among them, the steel reinforced corrugated pipe (SRPCP) is a relative successful solution which proved by mass evidences.

DN 3000 Steel Reinforced Corrugated Pipe
DN 3000 Steel Reinforced Corrugated Pipe

Goldstone-Orient New Material Equipment Inc. has published the innovated steel reinforced corrugated pipe technology. With the steel rib reinforcement, the large diameter spiral pipe can achieve the outstanding ring stiffness, in the mean time can save more than 30-40% material cost. Specifications: 1. Pipe Diameter: Dn300, 400, 500, 600, 800, 1000 Dn1200, 1400, 1500, 1600, 1800 Dn 1800, 2000, 2200, 2400, 2500 Dn 2500, 2600, 2800, 3000 2. Pipe ring stiffness: SN8, SN12.5, SN16 (ISO 9969) 3. Pipe standards: ASTM F 2435-15, CSA B182.14-15 4. Pipe length: 6m, 9m, 12m 5. Production speed: Max. 18m/hour Advantages: 1. Very high pipe stiffness with steel reinforcement 2. Pipe weight is 30-50% lighter than plastic pipe without steel reinforcement. 3. Pipe material cost is 30% less than plastic structure pipe 4. Installation by electric fusion connection and welding 5. Flexible pipe can against soil deformation Applications: 1. Drainage & Sewage 2. Storm-water 3. Waste water 4. Water tunnel 5. Irrigation 6. Conduit The new ASTM F 2435-15 standard was implemented for this kind of composite corrugated pipe. More than 500 sets of extrusion line was sold to China market. And there are many projects have completed in China, Japan, US, Europe and Turkey, Russia, Thailand.

new generation steel reinforced corrugated pipe technology

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