The Steel Wire Mesh Skeleton Polyethylene Composite Pipe (SRTP/SRCP) epitomizes a groundbreaking leap in mining products. This cutting-edge pipe is reinforced with a high-strength steel wire mesh skeleton, artfully helically twisted and molded. Constructed from uniquely modified flame-retardant and antistatic high-density polyethylene (HDPE) and bonded with high-performance adhesive resin, this pipe exemplifies an exceptional synergy between the robust steel wire skeleton and the durable inner and outer HDPE layers. By seamlessly integrating the finest characteristics of both steel and plastic pipes, this durable design is ideally suited for rigorous applications such as underground water supply, drainage, slurry spraying, gas extraction, and air pressure systems.
Polyethylene Raw Materials: The inner and outer polyethylene resin used in our coal mine applications is crafted from flame-retardant and antistatic specialized modified materials, including carbon nanotube (CNT) enhanced substances and permanent coloring agents. Developed using our company's proprietary technology, these advanced materials significantly boost the mechanical properties of the pipes, ensuring they not only meet but exceed MT181 and MT558.1 standards, thereby surpassing performance expectations.
Enhanced Steel Wire: Our pipes incorporate copper-plated steel wire that adheres to GB/T14450 standards, boasting an impressive tensile strength of 2050MPA. This far surpasses the standard requirement of 1850MPA, ensuring superior durability and unparalleled performance.
Adhesive Resin: Our state-of-the-art adhesive resin, developed with exclusive proprietary technology, delivers unmatched adhesion to steel wire and exceptional process adaptability. This ensures our pipes maintain outstanding reliability and robustness, even in the most demanding 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: Shandong Donghong Pipe Industry Co., Ltd. leads the industry by devising specialized steel wire mesh skeleton polyethylene composite pipes for underground coal mines, ensuring unmatched durability and safety.
3. Industry Leaders: Setting a new benchmark, Shandong Donghong Pipe Industry Co., Ltd. introduces wire mesh skeleton polyethylene composite pipes into the coal mining sector, revolutionizing industry standards and enhancing operational efficiency.
4. High-Pressure Pioneers: Shandong Donghong Pipe Industry Co., Ltd. is at the forefront of innovation, creating wire mesh skeleton polyethylene composite pipe products that withstand pressures above 3.5MPa, ensuring superior performance and reliability.
5. Cutting-Edge Connection Technology: Shandong Donghong Pipe Industry Co., Ltd. pioneers '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 state-of-the-art high-pressure pipe fittings factory. We specialize in producing an extensive array of high-pressure engineering fittings. Additionally, we excel in bespoke customization, crafting unique fittings to perfectly match your specific requirements and operating conditions. Our unwavering commitment to achieving a seamlessly connected 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 - 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 national key 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 stands as the cornerstone of our High Density Polyethylene Pipe, guaranteeing exceptional stress transfer during pressure applications. Leveraging our specialized raw material design and development platform, we meticulously refine the binder resin, achieving unparalleled performance and seamless integration with our cutting-edge processes and state-of-the-art equipment. This pivotal composite material's superior performance underscores our unwavering commitment to quality.
The plating process is crucial to our product's longevity, providing exceptional corrosion resistance while significantly enhancing the shear strength between steel wire and bonding resin. Extensive data testing revealed that the choice of plating material critically influences shear strength. Tin bronze plating exhibited outstanding superiority with an average shear strength of 20.69MPa, compared to 11.42MPa for brass. Consequently, our Reliable Srcp Tube for Water Transportation incorporates tin bronze-plated steel wire, ensuring it remains the optimal 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 signifies a monumental national investment in the salt chemical sector, specifically focusing on the Xinjiang Lop Nur process pipeline. With its annual conveying capacity, exceptional pipe bending resistance, and rigorous interface stability requirements, it demanded a bespoke solution from Donghong's expert technical team. They meticulously conceptualized and developed a tailored non-standard product structure and interface program to address the project's distinct characteristics. Donghong Pipeline Engineering Company expertly managed the entire construction process, ensuring the pipeline operates with peak efficiency.
Wet Copper Refining Project in Kazakhstan
Confronted with the challenge of open-air transportation of highly corrosive copper sulfate media, Donghong leveraged its state-of-the-art high-pressure corrosion-resistant SRTP, Composite500 steel-plastic composite technology, and dual-seal connection technology. This sophisticated solution delivered impeccable corrosion-resistant transport of special media, fulfilling the project's stringent requirements seamlessly.
"One Belt, One Road" - Indonesia OBI Nickel and Cobalt Project Deep Sea Landfill Project
Located on Obi Island in North Maluku Province, Indonesia, this ambitious project is spearheaded by the U.S. Borealis (Beijing) Pipeline Technology Co., Ltd. They undertook the complex task of designing the deep-sea landfill (DSTP) system. After comprehensive economic investment comparisons and safety evaluations, the dn1000 * 1.6MPa steel wire mesh skeleton polyethylene composite pipe was selected for its outstanding performance and reliability. Donghong's expertise played a pivotal role, with the project's total investment amounting to 66.484 million yuan, highlighting our unwavering commitment to excellence.
At Shandong Donghong Pipe Industry Co., Ltd., we pride ourselves on our enduring partnerships with top-tier logistics companies. We have meticulously crafted a sophisticated transportation model that integrates 'steam transportation + railroad transportation + port and shipping logistics,' ensuring our customers receive unparalleled transportation solutions.
Leveraging our extensive expertise and years of transportation experience, we guarantee seamless delivery irrespective of weather conditions, remoteness, or environmental challenges. Our comprehensive transportation plans ensure each shipment of our High Density Polyethylene Pipe with Abrasion and Chemical Resistance for Industry arrives promptly and in pristine condition.
1. Does your product meet international standards?
Absolutely! Our products have achieved prestigious certifications such as CE, BV, ISO, and Wars, all surpassing standard requirements. Please provide us with your specific national standard, and we will ensure compliance through meticulous verification or testing processes.
2. What kind of services do you offer?
As a leading manufacturing factory, we provide a comprehensive range of services, including pipe products, fittings, packaging, and shipping. Our expertise encompasses project consulting, pipe system solutions, and design recommendations. Furthermore, we offer premium pipeline contractor services, pipe repair, and free maintenance guidance, ensuring your projects are handled with utmost precision.
3. Do you support OEM/ODM services?
Certainly! We excel in customizing materials, specifications, logos, packaging, and connection methods. Our experienced team can deliver bespoke solutions tailored to your project needs, backed by a portfolio of successful case studies.
4. What are your terms of payment?
We offer flexible payment options, welcoming payments via T/T or L/C at sight.
5. How can you guarantee the quality of your goods?
We strongly encourage customers to visit our company for a firsthand inspection of our products. Rigorous testing is conducted based on customer requirements before order placement. Additionally, we provide samples for customer testing to ensure product quality before commencing bulk production.
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