The Steel Wire Mesh Skeleton Polyethylene Composite Pipe (SRTP/SRCP) represents a groundbreaking leap in mining product technology. This state-of-the-art pipe is reinforced with a robust steel wire mesh skeleton, meticulously helically twisted and molded to perfection. Constructed from uniquely modified flame-retardant and antistatic high-density polyethylene (HDPE) and seamlessly bonded with high-performance adhesive resin, this pipe epitomizes the harmonious integration of steel wire skeleton with both the inner and outer HDPE layers. By amalgamating the exemplary traits of both steel and plastic pipes, this versatile design is exceptionally suited for rigorous applications including underground water supply, drainage, slurry spraying, gas extraction, and air pressure systems.
Polyethylene Raw Materials: The inner and outer polyethylene resin utilized in our coal mine-specific applications is crafted from specialized flame-retardant and antistatic modified materials, which incorporate advanced carbon nanotube (CNT) modifications and permanent coloring agents. Developed using our company's cutting-edge proprietary technology, these superior materials significantly enhance the mechanical properties of the pipes, guaranteeing they not only comply with but exceed MT181 and MT558.1 standards, surpassing all performance benchmarks.
Enhanced Steel Wire: Our pipes are engineered with copper-plated steel wire that adheres to GB/T14450 standards, boasting an exceptional tensile strength of 2050MPA. This far surpasses the conventional requirement of 1850MPA, ensuring unmatched durability and extraordinary performance.
Adhesive Resin: Our cutting-edge adhesive resin, formulated with exclusive proprietary technology, delivers unrivaled adhesion to steel wire and exceptional process adaptability. This ensures our pipes maintain outstanding reliability and robustness, even within 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 vanguard of innovation, being the first enterprise to develop medium and high-pressure steel wire mesh skeleton polyethylene composite pipe products. Our pipes are distinguished by their advanced and reliable connection methods, positioning us as leaders in the industry.
2. Trailblazers in Mining: As industry trailblazers, we are the first to devise specialized steel wire mesh skeleton polyethylene composite pipes for underground coal mines. These pipes are engineered for unmatched durability and safety, setting new standards in mining operations.
3. Industry Leaders: Elevating the industry standard, Shandong Donghong Pipe Industry Co., Ltd. is the first to introduce wire mesh skeleton polyethylene composite pipes to the coal mining sector. Our innovation has revolutionized operational efficiency and set new benchmarks in the field.
4. High-Pressure Pioneers: At the forefront of technological advancement, we are pioneers in creating wire mesh skeleton polyethylene composite pipe products that withstand pressures exceeding 3.5MPa. Our products ensure superior performance and reliability in demanding applications.
5. Cutting-Edge Connection Technology: As innovators, we are the first to introduce 'double sealing' and 'one-piece clamp' connection technologies for steel wire mesh skeleton polyethylene composite pipes used in underground coal mines. These technologies guarantee secure, efficient connections, enhancing the overall reliability of our pipeline solutions.
Donghong Pipe Industry Co., Ltd. proudly operates a state-of-the-art high-pressure pipe fittings factory. We specialize in producing a comprehensive range of high-pressure engineering fittings. Moreover, we excel in customization, tailoring unique fittings to meet your specific requirements and operating conditions. Our unwavering dedication to the principle of achieving a seamlessly connected system ensures that we deliver unparalleled 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 spans four major categories: rainwater and sewage drainage pipes, municipal pipelines, industrial and mining pipelines, and pipelines for national key projects. Symbolizing the pinnacle of industry expertise and innovation, Donghong reached a remarkable milestone on November 6, 2017, by being listed on the Shanghai Main Board, becoming 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. Utilizing national platforms like the National Enterprise Technology Center, the National CNAS Laboratory, the Academician Expert Workstation, and the Postdoctoral Workstation, Donghong leads the charge in advancing the digitalization, informatization, and intelligence of pipeline engineering, pushing the boundaries of innovation within the 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 such as 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 enhancing infrastructure and improving 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 High Density Polyethylene Pipe, meticulously designed to ensure optimal stress transfer during high-pressure applications. Thanks to our specialized raw material design and development platform, we can enhance the binder resin, achieving unparalleled performance and seamless integration with our sophisticated processes and cutting-edge equipment. This superior composite material exemplifies our unwavering commitment to quality and excellence.
Plating is a crucial element of our product's durability, providing exceptional corrosion resistance and significantly enhancing the shear strength between steel wire and bonding resin. Through comprehensive data testing, we discovered that the choice of plating material has a profound impact on shear strength. Tin bronze plating exhibited outstanding performance with an 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, establishing it as the ultimate 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 epitomizes a substantial national investment in the salt chemical industry, focusing specifically on the intricate Xinjiang Lop Nur process pipeline. With an annual conveying capacity, exceptional pipe bending resistance, and rigorous interface stability requirements, Donghong's expert technical team crafted a bespoke solution. They meticulously designed and developed a non-standard product structure and interface program tailored to the project's distinctive needs. Donghong Pipeline Engineering Company meticulously oversaw the entire construction process, ensuring that the pipeline operates with unmatched efficiency and reliability.
Wet Copper Refining Project in Kazakhstan
Faced with the formidable challenge of open-air transportation of highly corrosive copper sulfate media, Donghong leveraged its cutting-edge high-pressure corrosion-resistant SRTP, Composite500 steel-plastic composite technology, and revolutionary double-seal connection technology. This advanced methodology ensured a seamless and corrosion-resistant transport solution for special media, meticulously meeting the project's rigorous requirements.
"One Belt, One Road" - Indonesia OBI Nickel and Cobalt Project Deep Sea Landfill Project
Located on Obi Island in North Maluku Province, Indonesia, this groundbreaking project is spearheaded by the U.S. Boreali (Beijing) Pipeline Technology Co., Ltd. They undertook the complex design of the deep-sea landfill (DSTP) system. After comprehensive economic investment comparisons and thorough safety assessments, the dn1000 * 1.6MPa steel wire mesh skeleton polyethylene composite pipe was selected for its unparalleled performance and dependability. Donghong's expertise played a pivotal role, with the project's total investment amounting to 66.484 million yuan, exemplifying our unwavering commitment to excellence.
At Shandong Donghong Pipe Industry Co., Ltd., we are renowned for our unwavering commitment to excellence in logistics. Our strategic alliances with elite logistics firms have enabled us to develop a sophisticated and efficient transportation model. By integrating 'steam transportation + railroad transportation + port and shipping logistics,' we provide our clientele with unmatched transportation solutions designed to meet their every need.
With a wealth of expertise and years of hands-on experience in transportation, we ensure flawless delivery regardless of weather, distance, or environmental obstacles. Our meticulously crafted transportation plans guarantee that every shipment of our Desalination Steps High Density Polyethylene Pipe for Seawater Desalination and Groundwater Remediation arrives on time and in impeccable condition, maintaining the highest standards of quality and reliability.
1. Does your product meet international standards?
Our products proudly carry CE, BV, ISO, and Wars certifications, all surpassing standard benchmarks. Simply provide your specific national standard, and we will guarantee compliance through meticulous verification or rigorous testing.
2. What kind of services do you offer?
As a leading manufacturing factory, we provide a comprehensive suite of services including pipe products, fittings, packaging, and shipping. Our expertise encompasses project consulting, advanced pipe system solutions, and professional design recommendations. Furthermore, we offer top-tier pipeline contractor services, expert pipe repair, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We excel in customization across materials, specifications, logos, packaging, and connection methods. Our experienced team delivers bespoke solutions tailored to your projects, supported by an extensive portfolio of successful case studies.
4. What are your terms of payment?
We accept payments via T/T or L/C at sight.
5. How can you guarantee the quality of your goods?
We welcome customers to tour our facilities and inspect our products firsthand. Comprehensive testing is conducted per customer specifications before confirming orders. In addition, we provide sample products for customer evaluation to ensure quality assurance before initiating bulk production.
){kind=link}