Composite Metal Reinforced Spirally Corrugated Plastic Pipes

Composite Metal Reinforced Spirally Corrugated Plastic Pipes System 1

Composite Metal Reinforced Spirally Corrugated Plastic Pipes System 2

Composite Metal Reinforced Spirally Corrugated Plastic Pipes System 3

Composite Metal Reinforced Spirally Corrugated Plastic Pipes System 4

Composite Metal Reinforced Spirally Corrugated Plastic Pipes

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Metal reinforced polyethylene（PE）spirally corrugated pipe is a new kind of double-wall spirally corrugated pipe. The HDPE is used as basic material, and the steel strap spiraled as the supporting part which is spiraled to corrugated wall structure.

Material

The stuffing material of steel reinforced HDPE pipe and fitting is PE 80 （piping class）, and we use high quality low-carbon steel wire as the reinforcing part of the pipe and Q235 steel sheet for fittings.

Characteristics of PE 80(piping class) material

Characteristics	Test Standard	Unit	Result
Melt Flow Index(5Kg,190℃)	ASTM D 1238	G/10min	0.56
Density	ASTM D 792	G/cm³	0.954
Tensile Yield Strength	ASTM D 638	Kg/cm²	230
Tensile Fracture Strength	ASTM D 638	Kg/cm²	370
Tensile&Elongation Ratio	ASTM D 638	%	≥600
Brittleness Tempreature	ASTM D 746	℃	≤-70
Linear Expansion Coefficient	DIN 53752	K^-1	1.3x10^-4
ESCR (F50)	ASTM D 1689	HR	＞2000
Thermal Stability	ISO 10837	min	＞20
Grade	ASTM D 4131(B)		PE 80
Long-term Hydro Static Strength	ISO 9080	MPa	9.33
Short-term Hydro Static Strength	ASTM D 4131	HR	＞165

The characteristic of steel wire and sheet

Characteristics	Test Standard		Unit	Result
Steel wire
Tensile strength		GB/T 343-1994	MPa	400-500
Tensile&Elongation Ratio		GB/T 343-1994	%	12
Steel sheet
Tensile strength	GB/T 709-1988		MPa	200
Tensile&Elongation Ratio	GB/T 709-1988		%	10

Characteristics

Because of the reasonable design and the advanced production technology, the Metal reinforced polyethylene（PE）spirally corrugated pipe possesses many advantages, such as high ring stiffness, resistance to corrosion and abrasion, light weight, convenient construction and installation etc..

It is a new kind of pollution-free plastic pipe which recommended by the Ministry of Construction. The features follows:

1 For the high elastic modulus of corrugated steel strip, the pipe possesses high ring stiffness.

Metal reinforced polyethylene（PE）spirally corrugated pipe makes use of the special corrugated steel as supporting structure. Because of steel’s high elastic modulus and pipe cross-section’s high moment of inertia, there are 4 ring stiffness classes for the pipe: SN8, SN10, SN12.5, and SN16. Its high ring stiffness breaks the limit that the highest ring stiffness of plastic pipe can only reach the SN8. It makes plastic pipe can satisfy various engineering requirements.

2 The HDPE materials is very stable is chemical reaction, the pipe can resist corrosion and abrasion, and has a long service life.

The steel is completely covered by HDPE, so only the HDPE is exposed to the liquid and the soil. HDPE is a kind of crystal Non-polar material, it is very stable and has no electric-corrosion. Pipe resists corrosion and abrasion, has a long service life.

3 Smooth inter wall, the transportation capability of the pipe is high

The inner wall surface of Metal reinforced polyethylene（PE）spirally corrugated pipe is smoother than concrete pipe. So the transportation capability of the pipe is obviously higher than that of concrete pipe under the same condition.

4 Hollow structure, light weight, convenient construction and installation

With the corrugated steel strip as supporting structure, it needs fewer raw materials than other plastic pipes. Metal reinforced polyethylene（PE）spirally corrugated pipe is light. It can be connected by many kinds of method, for example, electric melting belt; the transport and installation are convenient and simple.

5 HDPE and adhesive resin are combined with the steel strip closely in molten state.

As bond between HDPE and steel, there is a layer of adhesive resin which the steel strip’s surface coats with. To control the optimum temperature, pressure and time can ensure that HDPE and steel compound closely. It prevents the steel strip being rusty.

6 Flexible pipe, joint steady, resist to unequal settlement

Metal reinforced polyethylene（PE）spirally corrugated pipe possesses the characteristic of both rigidity and flexibility, when under pressure, the pipe and backfill soil can resist to external load and reasonable uneven settlements of soil.

Combined with the advantages of the electric-melting belt welding method and the patented technology of welding, it can ensure the welding quality be safety.

Specification

specification	minimum mean inside diameter （mm）	minimum inner wall thickness（mm）	minimum multilayer wall thickness （mm）	Maximum thread pitch（mm）
300	294	2.5	4.0	55
400	392	3.0	4.5	65
500	490	3.5	5.0	75
600	588	4.0	6.0	85
700	673	4.0	6.0	110
800	785	4.5	6.5	120
900	885	5.0	7.0	135
1000	985	5.0	7.0	150
1100	1085	5.0	7.0	165
1200	1185	5.0	7.0	180
1300	1285	5.0	7.0	190
1400	1385	5.0	7.0	200
1500	1485	5.0	7.0	210
1600	1585	5.0	7.0	210
1800	1785	5.0	7.0	210
2000	1985
2200	2185

Application

The 12th China National Games Projects

The 12th National Games of the People's Republic of China was held in Liaoning province in 2013. Liaoning was the 6th provincial level host of the games, following Beijing, Shanghai, Guangdong, Jiangsu and Shandong.

HTIDC won the bidding of drainage pipline projects of the 12th National Games in Shenyang in 2012.

Q: Is the coating tube a composite tube?: As the name suggests is a composite pipe by two and more than two kinds of materials after the composite process of composite with the pipeline, the pipeline and the performance of the composite material in the development of the future will be good, now the most widely used is the double metal composite pipe, which not only solves the problem of pipeline pressure pipeline also, play high pipe corrosion problems!

Q: How do composite pipes handle water treatment processes?: Composite pipes are ideal for water treatment processes due to their corrosion resistance and durability. Unlike traditional metal pipes, composite pipes do not rust or corrode when exposed to water and chemicals commonly used in water treatment. This ensures the integrity of the pipe system and prevents contamination of the treated water. Additionally, composite pipes have smooth internal surfaces, reducing friction and enhancing the flow efficiency of water through the system. Overall, composite pipes provide a reliable and efficient solution for handling water treatment processes.

Q: Are composite pipes resistant to freeze-thaw cycles?: Yes, composite pipes are resistant to freeze-thaw cycles.

Q: Are composite pipes resistant to pressure surges?: Yes, composite pipes are generally resistant to pressure surges. The layered construction of composite pipes, which typically consist of high-strength fibers or particles embedded in a polymer matrix, provides them with excellent strength and flexibility. This allows them to withstand and absorb pressure surges without experiencing significant damage or failure. Additionally, the composite materials used in these pipes often have superior fatigue resistance, which further enhances their ability to withstand pressure fluctuations over time.

Q: Can composite pipes be used for chilled water systems?: Yes, composite pipes can be used for chilled water systems. Composite pipes, made up of materials such as fiber-reinforced plastics or plastic composites, offer excellent resistance to corrosion, have low thermal conductivity, and are lightweight. These properties make them suitable for transporting chilled water efficiently and effectively. Additionally, composite pipes are easy to install and maintain, making them a reliable choice for chilled water systems.

Q: Can composite pipes be used for chemical storage systems?: Yes, composite pipes can be used for chemical storage systems. Composite pipes are made from materials that are resistant to corrosion and can handle a wide range of chemicals. They offer excellent durability, strength, and longevity, making them suitable for storing various chemicals in industrial settings.

Q: Are composite pipes suitable for underground installations?: Yes, composite pipes are suitable for underground installations. Composite pipes offer excellent resistance to corrosion, abrasion, and chemicals, making them durable and ideal for underground applications. They are also lightweight, allowing for easier handling and installation. Additionally, composite pipes have low thermal conductivity, reducing heat loss and minimizing the risk of freezing in cold climates.

Q: Do composite pipes require special installation techniques?: Yes, composite pipes often require special installation techniques due to their unique characteristics. These pipes are made from a combination of different materials, such as fiberglass and resin, which require specific handling and joining methods. Additionally, composite pipes may have different thermal expansion rates and require specialized fittings and connectors to ensure proper installation and long-term performance. Therefore, it is important to follow the manufacturer's guidelines and seek professional assistance for the installation of composite pipes.

Q: Are composite pipes resistant to nitric acid corrosion?: Yes, composite pipes are generally resistant to nitric acid corrosion. The combination of materials used in composite pipes, such as fiberglass or carbon fiber reinforced polymers, provides excellent resistance to nitric acid and other corrosive chemicals.

Q: PSP plastic steel composite pipe and lining plastic pipe are not the same kind of pipe?: PSP steel plastic composite pipe: P is PE or PPR and PERT S is referred to as material, steel pipe is referred to as PSP, inside and outside the plastic intermediate steel composite, PSP steel plastic composite pressure pipe, steel wire mesh, and PE coated steel mesh steel plastic pipe, steel plastic pipe,

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