Steel Wire Reinforced Polyethylene Composite Pipe (SRTP/SRCP) marks a revolutionary advancement in mining products. This ground breaking pipe is reinforced with a high-strength steel wire mesh skeleton, which is expertly spiral-twisted and formed. Made from specially modified flame-retardant and antistatic high-density polyethylene (HDPE) and bonded with a high-performance adhesive resin, the pipe showcases a unique synergy between the steel wire skeleton and the inner and outer HDPE layers. By fusing the best properties of steel pipe's high pressure bearing capacity with plastic pipe's corrosion resistance and high toughness, this pipe is an ideal choice for demanding applications such as underground water supply, drainage, slurry spraying, gas extraction and gas pressure systems.
Polyethylene raw materials: For our pipes in coal mining applications, the inner and outer polyethylene resins are made from flame-retardant and antistatic special modified materials, including carbon nanotube (CNT) modified substances and permanent coloring materials. These advanced materials are developed using our company's proprietary technology to improve the mechanical properties of the pipes, ensuring that they not only meet but also exceed the MT181 and MT558.1 standards, exceeding performance expectations.
Reinforced steel wire: Our pipes use copper-plated steel wire that meets the GB/T14450 standard, with a tensile strength of up to 2050 mPa.This significantly exceeds the standard requirement of 1850 mPa, ensuring excellent durability and superior performance.
Binder resin: Our innovative binder resin, developed using exclusive proprietary technology, has unparalleled steel wire bonding and excellent process adaptability. This ensures that our pipes can perform with excellent reliability and robustness even in the most challenging environments.
| Nominal diamter /mm |
Nominal Pressure / Mpa |
| 0.8 |
1.0 |
1.25 |
1.6 |
2.0 |
2.5 |
3.0 |
3.5 |
4.0 |
5.0 |
6.3 |
7.0 |
8.0 |
9.0 |
10.0 |
11.0 |
12.0 |
13.0 |
14.0 |
15.0 |
| Nominal Wall Thickness / mm |
| 50 |
/ |
/ |
/ |
4.5 |
5.0 |
5.5 |
5.5 |
5.5 |
6.0 |
8.5 |
9.0 |
9.5 |
10.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.5 |
10.5 |
| 63 |
/ |
/ |
/ |
4.5 |
5.0 |
5.5 |
5.5 |
5.5 |
6.5 |
8.5 |
9.0 |
10.0 |
10.0 |
10.0 |
10.0 |
10.5 |
10.5 |
11.5 |
11.0 |
11.0 |
| 75 |
/ |
/ |
/ |
5.0 |
5.0 |
5.5. |
6.0 |
6.0 |
9.5 |
9.5 |
9.5 |
10.5 |
10.5 |
10.5 |
11.5 |
11.5 |
12.0 |
12.0 |
12.0 |
12.0 |
| 90 |
/ |
/ |
/ |
5.5 |
5.5 |
5.5 |
6.0 |
6.0 |
10.0 |
10.5 |
10.5 |
11.5 |
11.5 |
11.5 |
12.0 |
12.0 |
12.0 |
12.0 |
12.5 |
13.0 |
| 110 |
/ |
5.5 |
5.5 |
7.0 |
7.0 |
7.5 |
8.5 |
8.5 |
11.0 |
12.0 |
12.0 |
12.0 |
12.0 |
13.0 |
13.0 |
13.5 |
13.5 |
14.5 |
14.5 |
15.5 |
| 125 |
/ |
5.5 |
5.5 |
7.5 |
8.0 |
8.5 |
9.5 |
9.5 |
11.0 |
11.0 |
12.0 |
12.0 |
13.0 |
13.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.5 |
15.5 |
| 140 |
/ |
5.5 |
5.5 |
8.0 |
8.5 |
9.0 |
9.5 |
9.5 |
11.0 |
11.0 |
13.0 |
13.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.0 |
16.0 |
16.5 |
| 160 |
/ |
6.0 |
6.0 |
9.0 |
9.5 |
10.0 |
10.5 |
10.5 |
11.0 |
12.0 |
14.0 |
14.0 |
15.0 |
15.0 |
15.0 |
15.5 |
16.0 |
16.0 |
17.0 |
17.0 |
| 180 |
/ |
6.0 |
6.0 |
9.5 |
10.5 |
1.0 |
12.0 |
12.5 |
13.0 |
13.0 |
14.0 |
15.0 |
15.0 |
15.0 |
15.0 |
15.5 |
16.0 |
17.0 |
/ |
/ |
| 200 |
/ |
6.0 |
6.0 |
9.5 |
10.5 |
11.0 |
12.0 |
12.5 |
13.0 |
13.0 |
15.0 |
15.0 |
15.0 |
15.0 |
16.0 |
17.0 |
17.0 |
/ |
/ |
/ |
| 225 |
/ |
8.0 |
8.0 |
10.0 |
10.5 |
11.0 |
12.0 |
13.0 |
13.0 |
13.0 |
14.0 |
15.0 |
16.0 |
17.0 |
17.0 |
/ |
/ |
/ |
/ |
/ |
| 250 |
8.0 |
10.5 |
10.5 |
12.0 |
12.0 |
12.5 |
14.0 |
14.0 |
14.0 |
15.0 |
16.0 |
17.0 |
17.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 280 |
9.5 |
11.0 |
11.0 |
13.0 |
13.0 |
15.0 |
15.0 |
17.0 |
17.0 |
18.0 |
18.0 |
19.0 |
20.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 315 |
9.5 |
11.5 |
11.5 |
13.0 |
13.0 |
15.0 |
15.0 |
18.0 |
18.0 |
19.0 |
20.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 355 |
10.0 |
12.0 |
12.0 |
14.0 |
14.0 |
17.0 |
17.0 |
19.0 |
19.0 |
20.0 |
21.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 400 |
10.5 |
12.5 |
12.5 |
15.0 |
16.0 |
17.0 |
17.0 |
19.0 |
21.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 450 |
11.5 |
13.5 |
13.5 |
16.0 |
18.0 |
18.0 |
19.0 |
20.0 |
21.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 500 |
12.5 |
15.5 |
15.5 |
18.0 |
19.0 |
22.0 |
23.0 |
24.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 560 |
17.0 |
20.0 |
20.0 |
22.0 |
22.0 |
24.0 |
26.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 630 |
20.2 |
23.0 |
23.0 |
26.0 |
26.0 |
28.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 710 |
23.0 |
26.0 |
28.0 |
30.0 |
32.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 800 |
27.0 |
30.0 |
32.0 |
34.0 |
36.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 900 |
29.0 |
33.5 |
35.0 |
38.0 |
40.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 1000 |
34.0 |
37.0 |
40.0 |
45.0 |
47.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
| 1200 |
38.0 |
40.0 |
43.0 |
50.0 |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
/ |
1. Pioneering Innovation: Shandong Donghong Pipe Industry Co., Ltd. proudly stands as the first enterprise to develop medium- and high-pressure steel wire mesh skeleton polyethylene composite pipe products. These pipes boast an advanced and reliable connection method that sets us apart.
2. Trailblazers in Mining: We lead the industry as the first enterprise to devise specialized steel wire mesh skeleton polyethylene composite pipes tailored for use in underground coal mines, ensuring unmatched durability and safety.
3. Industry Leaders: Setting a new benchmark, we are the first to successfully introduce wire mesh skeleton polyethylene composite pipes into the coal mining sector, revolutionizing industry standards and enhancing operational efficiency.One"Road"—Indonesia
4. High-Pressure Pioneers: Shandong Donghong Pipe Industry Co., Ltd. is at the forefront of innovation, being the first to create wire mesh skeleton polyethylene composite pipe products capable of withstanding pressures above 3.5 MPa, ensuring superior performance and reliability.
5. Cutting-Edge Connection Technology: We are the first enterprise to pioneer 'double sealing' and 'one-piece clamp' connection technologies for steel wire mesh skeleton polyethylene composite pipes used in underground coal mines, guaranteeing secure and efficient connections.
Shandong Donghong Pipe Industry Co., Ltd. proudly operates a cutting-edge high-pressure pipe fittings factory. We specialize in the production of an extensive range of high-pressure engineering fittings. Furthermore, we specialize in customization, uniquely tailoring fittings to meet your exact requirements and specific operating conditions. Our unwavering commitment to the principle of achieving a flawlessly interconnected system ensures that we deliver unmatched quality and precision in every product.
About us
Donghong (Shandong Donghong Pipe Industry Co., Ltd.) (abbreviation: Donghong, stock code: 603856) is headquartered in the historic and culturally rich hometown of Confucius in Qufu, China. Established in 1997, Donghong has carved a niche as a premier manufacturer of engineering pipelines, a proficient service provider in pipeline engineering, and a general contractor for comprehensive pipeline projects. Our product portfolio is diversified into four major categories: rainwater and sewage drainage pipes, municipal pipelines, industrial and mining pipelines, and pipelines for national key projects. Representing the pinnacle of industry expertise and innovation, Donghong achieved a significant milestone on November 6, 2017, by being listed on the Shanghai Main Board, marking itself as China's first main board-listed engineering composite pipeline manufacturer.
Donghong takes pride in its robust R&D capabilities, with a team of over 200 dedicated research and development professionals and a portfolio of more than 100 patents. Leveraging national platforms such as the National Enterprise Technology Center, the National CNAS Laboratory, the Academician Expert Workstation, and the Postdoctoral Workstation, Donghong is at the forefront of advancing the digitalization, informatization, and intelligence of pipeline engineering, spearheading progress in the engineering pipeline industry.
Committed to contributing to key national strategic and livelihood projects, Donghong plays a pivotal role in the engineering pipeline industry. Our services extend to major national initiatives like the South-to-North Water Diversion, Hanjinwei, Beijing-Xinjiang Expressway, One Belt, One Road projects, standardized farmland development, urban and rural water supply integration, Liren gas, and centralized heating systems. By driving excellence and innovation, Donghong is dedicated to advancing infrastructure and enhancing quality of life through its engineering expertise.
Experimental Verification
Key Raw Materials
At Shandong Donghong Pipe Industry Co., Ltd., the binder resin is the cornerstone of our Engineering Support High-density Density Polyethylene Pipe, ensuring impeccable stress transfer during high-pressure applications. Leveraging our specialized raw material design and development platform, we meticulously refine the binder resin to achieve unparalleled performance. This advanced composite material seamlessly integrates with our cutting-edge processes and state-of-the-art equipment, exemplifying our unwavering commitment to quality and innovation.
Plating is essential to our product's durability, providing outstanding corrosion resistance and significantly enhancing the shear strength between steel wire and bonding resin. Comprehensive data testing has shown that the choice of plating material dramatically impacts shear strength. Tin bronze plating outperforms with an impressive average shear strength of 20.69MPa, compared to 11.42MPa for brass. Consequently, our Reliable Srcp Tube for Water Transportation utilizes tin bronze-plated steel wire, ensuring it excels as the premier substrate for pressure-bearing applications.
Key Industrial and Mining Application Cases
Xinjiang Key Project Construction: Process Pipeline for Potassium Salt in Lop Nur, Xinjiang
This prestigious project stands as a monumental national investment in the salt chemical sector, focusing on the Xinjiang Lop Nur process pipeline. With an impressive annual conveying capacity, exceptional pipe bending resistance, and rigorous interface stability requirements, Donghong's adept technical team created a bespoke solution. Through meticulous design and the development of a unique, non-standard product structure and interface program, they addressed the project's distinctive needs effectively. Donghong Pipeline Engineering Company expertly managed the entire construction process, ensuring the pipeline operates with unparalleled efficiency.
Wet Copper Refining Project in Kazakhstan
Faced with the difficulties of open-air transportation of highly corrosive medium copper sulfate, Donghong uses advanced high-pressure corrosion-resistant SRTP, Composite500 steel-plastic composite technology, double-seal connection technology and other advanced technologies to provide a perfect solution for the corrosion-resistant transportation of special media, fully meeting the stringent requirements of the project.
"One Belt, One Road"—Indonesia OBI Nickel and Cobalt Project Deep Sea Landfill Project
The project is located on Obi Island, North Maluku Province, Indonesia. this project is led by Borealis (Beijing) Pipeline Technology Co., Ltd. of the United States. The deep sea landfill site (DSTP) system was carefully designed. The design is complex. After economic investment evaluation and safety evaluation, the reliable and excellent dn1000*1.6MPa wire mesh skeleton polyethylene composite pipe was finally selected. Donghong's profound professional knowledge played an important role. The total investment of the project is as high as 66.484 million yuan, which demonstrates our unremitting pursuit in excellence.
At Shandong Donghong Pipe Industry Co., Ltd., we take immense pride in our robust and lasting partnerships with premier logistics companies. Our meticulously crafted and sophisticated transportation model seamlessly integrates 'steam transportation + railroad transportation + port and shipping logistics,' delivering unparalleled and efficient transportation solutions for our valued customers.
Drawing on our extensive expertise and years of proven transportation experience, we guarantee flawless and timely delivery, irrespective of challenging weather conditions, remote locations, or environmental obstacles. Our meticulously planned transportation strategy ensures that each shipment of our High Density Polyethylene Pipe with Abrasion and Chemical Resistance for Industry arrives punctually and in pristine condition.
1. Does your product meet international standards?
Our products proudly meet and surpass CE, BV, ISO, and Wars certifications, adhering to stringent international standards. Share your specific national standard with us, and we will diligently ensure compliance through meticulous verification or testing.
2. What kind of services do you offer?
As a premier manufacturing factory, we provide a comprehensive suite of services, including pipe products, fittings, packaging, and shipping. Our proficiency encompasses project consulting, pipe system solutions, and design recommendations. Additionally, we offer top-tier pipeline contractor services, pipe repair, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We excel in customizing materials, specifications, logos, packaging, and connection methods. Our adept team can deliver bespoke solutions tailored to your projects, drawing from a wealth of successful case studies.
4. What are your terms of payment?
We accept payments via T/T or L/C at sight, ensuring smooth and secure transactions.
5. How can you guarantee the quality of your goods?
We welcome our customers to visit our company for an in-depth inspection of our products. Rigorous testing is conducted as per customer requirements before order placement. Furthermore, we offer samples for customer testing to ensure exceptional product quality before commencing bulk production.
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