Composite Metal Reinforced Spirally Corrugated Plastic Pipes

Composite Metal Reinforced Spirally Corrugated Plastic Pipes System 1

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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: Do composite pipes require frequent maintenance?: Composite pipes generally require less frequent maintenance compared to traditional materials like metal or PVC pipes. This is because composite pipes are highly resistant to corrosion, chemicals, and abrasion. They have a longer lifespan and do not require frequent replacement or repairs due to their durability. However, like any other piping system, occasional inspections and maintenance checks are recommended to ensure their optimal performance and address any potential issues.

Q: How do composite pipes handle high temperatures?: Composite pipes are designed to handle high temperatures by using materials that have excellent heat resistance properties. These materials, such as fiberglass or carbon fiber reinforced polymers, have a high melting point and low thermal conductivity, allowing them to maintain their structural integrity and insulate against heat transfer even at elevated temperatures. Additionally, composite pipes are often engineered with special coatings or liners that further enhance their ability to withstand high temperatures without degradation or failure.

Q: Can composite pipes be used for transporting chemicals?: Yes, composite pipes can be used for transporting chemicals. Composite pipes are made of different materials, such as fiberglass, carbon fiber, or thermoplastics, which provide resistance to corrosion and chemical degradation. These pipes offer excellent strength, durability, and chemical resistance, making them suitable for transporting various chemicals safely and efficiently.

Q: What are the components of the CEMS composite sample tube?: The sample heat tracing composite pipe is a complex composed of a plurality of devices combined with a plurality of functions:Sampling: it can combine various kinds of materials and sampling tubes

Q: Are composite pipes environmentally friendly?: Composite pipes can be considered environmentally friendly due to their lightweight construction, which reduces transportation emissions and energy consumption during installation. Additionally, their resistance to corrosion and long lifespan result in reduced waste generation and the need for replacement, further minimizing their environmental impact.

Q: What's the difference between a steel plastic composite pipe and an aluminum plastic composite pipe?: Steel plastic composite pipe can withstand voltage, current production not many manufacturers, Shenzhen Hua Han, Anyuan pipeline, Langfang cre,Aluminum plastic composite pipe pressure is not very good, but the two kinds of pipe are anti-corrosion

Q: Do composite pipes have a higher resistance to abrasion compared to metal pipes?: Yes, composite pipes generally have a higher resistance to abrasion compared to metal pipes. This is because composite pipes are made from materials such as fiberglass or carbon fiber reinforced polymers which have high tensile strength and excellent resistance to wear and tear. Additionally, composite pipes are usually designed with a smooth inner surface that reduces friction and minimizes the impact of abrasive particles, further enhancing their resistance to abrasion.

Q: What is a composite pipe?: The plastic pipe is seen in our daily life tap water pipe is a plastic pipe, the plastic pipe plastic pipe is generally defined as a synthetic resin, which is polyester as raw material, adding stabilizer, lubricant and plasticizer, with "plastic" method in pipe making machine by extrusion processed. The utility model has the advantages of light weight, corrosion resistance, beautiful appearance, no bad smell, easy processing, convenient construction, etc., and has been widely applied in building engineering. The utility model is mainly used as a water supply system for building construction, a drainage pipe, an exhaust and a sewage sanitary pipe, an underground drainage pipe system, a rain pipe and a threading pipe for supporting wire installation, etc..

Q: DN65 what is the outer diameter of the steel plastic composite pipe?: Nominal diameter (nominal, diameter), also known as the average diameter (mean, outside, diameter). The standard diameter after standardization, expressed in DN, unit mm. DN65 steel skeleton plastic composite pipe outer diameter is 87mm, steel skeleton plastic composite pipe specification refers to the inside diameter, and the general pipe is not the same.

Q: Are composite pipes suitable for high-altitude installations?: Yes, composite pipes are suitable for high-altitude installations. They are lightweight, corrosion-resistant, and have good thermal insulation properties, making them ideal for withstanding the extreme weather conditions and temperature fluctuations often experienced at high altitudes. Additionally, composite pipes have high strength-to-weight ratios, which ensures durability and longevity in these challenging environments.

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