Steel Wire Reinforced Polyethylene Composite Pipe (SRTP/SRCP) represents a monumental leap forward in the realm of water utility pipe systems. This revolutionary product is engineered with a high-strength steel wire mesh skeleton, meticulously spiral-twisted and formed to perfection. Constructed from specially modified flame-retardant and antistatic high-density polyethylene (HDPE) and bonded with a cutting-edge high-performance bonding resin, this pipe showcases an extraordinary harmony between the steel wire skeleton and the inner and outer HDPE layers. By blending the superior characteristics of both steel and plastic, this robust design is perfect for challenging applications such as underground water supply, drainage, slurry spraying, gas extraction, and gas pressure systems.
Polyethylene Raw Materials: The inner and outer polyethylene resins utilized in our water supply and drainage engineering applications are crafted from food-safe HDPE, specially modified with advanced carbon nanotube (CNT) substances. Throughout the pipe processing, no heavy metal salt stabilizers are added, ensuring the materials are non-toxic and boast exceptional hygienic properties. These state-of-the-art materials, developed with our company's proprietary technology, significantly enhance the mechanical properties of the pipes. As a result, they not only meet but surpass the stringent MT181 and MT558.1 standards, far exceeding performance expectations. .
Reinforced Steel Wire: Our pipes incorporate copper-plated steel wire that adheres to the GB/T14450 standard, boasting a remarkable tensile strength of up to 2050MPA. This vastly exceeds the standard requirement of 1850MPA, ensuring unparalleled durability and exceptional performance in all applications.
Binder Resin: The innovative binder resin, developed through our exclusive proprietary technology, offers unrivaled adhesion to steel wire and excellent process adaptability. This ensures that our pipes deliver outstanding reliability and robustness, even under the most demanding conditions.
| 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 trailblazer in the development of medium and high-pressure steel wire mesh skeleton polyethylene composite pipe products. These state-of-the-art pipes feature an advanced and highly reliable connection method, distinguishing us as industry leaders.
2. Trailblazers in Mining: Leading the industry, we are the innovators behind specialized steel wire mesh skeleton polyethylene composite pipes designed for underground coal mines. Our solutions offer unmatched durability and safety, ensuring optimal performance in challenging environments.
3. Industry Leaders: Shandong Donghong Pipe Industry Co., Ltd. has set a new benchmark by successfully introducing wire mesh skeleton polyethylene composite pipes into the coal mining sector. This revolutionary advancement enhances industry standards and significantly boosts operational efficiency.
4. High-Pressure Pioneers: At the forefront of technological innovation, we are the first to develop wire mesh skeleton polyethylene composite pipe products capable of withstanding pressures exceeding 3.5MPa. Our pipes ensure superior performance, reliability, and longevity.
5. Cutting-Edge Connection Technology: We are pioneers in 'double sealing' and 'one-piece clamp' connection technologies for steel wire mesh skeleton polyethylene composite pipes used in underground coal mines. These innovative technologies guarantee secure, efficient, and dependable connections.
Shandong Donghong Pipe Industry Co., Ltd. proudly operates a cutting-edge high-pressure pipe fittings factory. We specialize in producing an extensive range of high-pressure engineering fittings. Furthermore, we excel 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 - 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 is the cornerstone of our Engineering Support High 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 initiative 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 orchestrated 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 with precision. Donghong Pipeline Engineering Company expertly managed the entire construction process, ensuring the pipeline operates with unparalleled efficiency and reliability.
Wet Copper Refining Project in Kazakhstan
Faced with the rigorous challenge of transporting highly corrosive copper sulfate media in open-air conditions, Donghong harnessed cutting-edge high-pressure corrosion-resistant SRTP, Composite500 steel-plastic composite technology, and double-seal connection technology. This advanced methodology delivered an impeccable solution for the corrosion-resistant transportation of special media, thoroughly meeting the stringent project requirements and ensuring durability and effectiveness.
"One Belt, One Road" - Indonesia OBI Nickel and Cobalt Project Deep Sea Landfill Project
Located on Obi Island in North Maluku Province, Indonesia, this extensive project is spearheaded by U.S. Borealis (Beijing) Pipeline Technology Co., Ltd. They meticulously managed the complex design for the deep-sea landfill (DSTP) system. Following exhaustive economic investment evaluations and stringent safety assessments, the dn1000 * 1.6MPa steel wire mesh skeleton polyethylene composite pipe was selected for its outstanding performance and reliability. Donghong's profound expertise played a crucial role, with the total project investment amounting to a significant 66.484 million yuan, underscoring our unwavering commitment to excellence and innovation.
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 not only meet but exceed CE, BV, ISO, and Wars certifications, strictly adhering to the highest international standards. Provide us with your specific national standard, and we will thoroughly verify compliance through meticulous verification or testing, ensuring absolute adherence.
2. What kind of services do you offer?
As a leading manufacturing factory, we offer a comprehensive range of services including pipe products, fittings, packaging, and shipping. Our expertise extends to project consulting, pipe system solutions, and design recommendations. Additionally, we provide top-quality pipeline contractor services, efficient pipe repair, and complimentary maintenance guidance for all our clients.
3. Do you support OEM/ODM services?
Absolutely! We specialize in customizing every aspect of your project, from materials and specifications to logos, packaging, and connection methods. Our proficient team is adept at delivering bespoke solutions tailored to your unique requirements, drawing from an extensive portfolio of successful case studies.
4. What are your terms of payment?
We facilitate secure and seamless transactions with payment options via T/T or L/C at sight.
5. How can you guarantee the quality of your goods?
We invite our customers to visit our company for a detailed inspection of our products, ensuring transparency and confidence. Rigorous testing is conducted according to customer requirements before order placement. Additionally, we provide samples for customer testing to ensure exceptional product quality before initiating bulk production.
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