The Steel Wire Mesh Skeleton Polyethylene Composite Pipe (SRTP/SRCP) represents a groundbreaking innovation in mining products. This advanced pipe is reinforced with a high-strength steel wire mesh skeleton, meticulously helically twisted and molded. It is constructed from modified flame-retardant and antistatic high-density polyethylene (HDPE) and bonded with high-performance adhesive resin. This unique combination ensures the steel wire skeleton seamlessly integrates with both the inner and outer layers of HDPE, capturing the best qualities of both steel and plastic pipes. Its robust design makes it ideal for a range of demanding applications including underground water supply and drainage, slurry spraying, gas extraction, and air pressure systems.
Polyethylene Raw Materials: The inner and outer polyethylene resin utilized in our coal mine applications is crafted from flame-retardant and antistatic specialized modified materials, such as carbon nanotube (CNT) modified materials and permanent coloring special materials. These materials, developed with our company's independent intellectual property rights, enhance the mechanical properties of the pipes, ensuring compliance with MT181 and MT558.1 standards while exceeding performance expectations.
Enhanced Steel Wire: We employ copper-plated steel wire that adheres to GB/T14450 standards, boasting a remarkable strength of 2050MPA. This far surpasses the standard requirement of 1850MPA, ensuring superior durability and performance.
Adhesive Resin: Our patented adhesive resin, developed with our proprietary technology, offers exceptional adhesion to steel wire and outstanding process adaptability. This innovation ensures our pipes are both reliable and robust in various 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 groundbreaking medium and high-pressure steel wire mesh skeleton polyethylene composite pipe products. Our advanced and reliable connection method sets us apart in the industry.
2. Trailblazers in Mining: Leading the way, we are the first enterprise to engineer steel wire mesh skeleton polyethylene composite pipes specifically designed for the rigorous demands of underground coal mines.
3. Industry Leaders: By successfully introducing wire mesh skeleton polyethylene composite pipes to the coal mining sector, we have set a new industry standard, affirming our position as true industry leaders.
4. High-Pressure Pioneers: As pioneers, we have created steel wire mesh skeleton polyethylene composite pipe products that can withstand pressures exceeding 3.5MPa, showcasing our commitment to innovation and resilience.
5. Cutting-Edge Connection Technology: Our enterprise is the first to develop revolutionary 'double sealing' and 'one-piece clamp' connection technologies for steel wire mesh skeleton polyethylene composite pipes in underground coal mines, ensuring unparalleled reliability and performance.
At Shandong Donghong Pipe Industry Co., Ltd., we take immense pride in our cutting-edge high-pressure pipe fittings factory. Our expertise lies in crafting a vast array of high-pressure engineering fittings, each designed with precision and excellence. Beyond our extensive range, we excel in bespoke customization, tailoring unique fittings that perfectly align with your specific requirements and operating conditions. Our unwavering commitment to achieving a flawlessly connected system guarantees that each product we deliver is synonymous with unparalleled quality and precision.
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.
Rigorous Experimental Verification
High-Quality Key Raw Materials
At Shandong Donghong Pipe Industry Co., Ltd., our binder resin serves as the cornerstone of excellence, ensuring seamless stress transfer during the pipe pressure process. This vital composite material's performance is pivotal to our product's outstanding quality. We utilize a specialized raw material design and development platform, enabling us to meticulously refine the binder resin. This ensures an unparalleled synergy with our advanced processes and state-of-the-art equipment, resulting in superior product performance.
Our innovative plating process serves a dual purpose: providing robust corrosion protection and significantly enhancing the shear strength between steel wire and bonding resin. Extensive testing data has revealed remarkable differences in shear strength based on the plating material utilized. Tin bronze achieves an impressive average shear strength of 20.69MPa, compared to 11.42MPa for brass. As a result, we've selected tin bronze-plated steel wire as the optimal pressure-bearing substrate for our Reliable SRCP Tube for Water Transportation, ensuring maximum durability and performance.
Key Industrial and Mining Application Cases
Xinjiang Key Project Construction - Process Pipeline for Potassium Salt in Lop Nur, Xinjiang
This prestigious project represents a significant national investment in the salt chemical sector, particularly within the Xinjiang Lop Nur process pipeline. The pipeline's impressive annual conveying capacity, exceptional pipe bending resistance, and stringent interface stability requirements necessitated a bespoke solution from Donghong's elite technical team. Our experts meticulously designed and developed a customized non-standard product structure and interface program to address the unique characteristics of the project. Donghong Pipeline Engineering Company managed the entire construction process, ensuring the pipeline operates with peak efficiency.
Wet Copper Refining Project in Kazakhstan
Faced with the formidable challenge of open-air transportation of highly corrosive copper sulfate media, Donghong employed its cutting-edge high-pressure corrosion-resistant SRTP, Composite500 steel-plastic composite technology, and innovative double-seal connection technology. This sophisticated approach provided an impeccable solution for the corrosion-resistant transport of special media, meeting the project's stringent requirements with unparalleled precision.
"One Belt, One Road" - Indonesia OBI Nickel and Cobalt Project Deep Sea Landfill Project
Situated 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 intricate design task for the deep-sea landfill (DSTP) system. After comprehensive economic investment comparisons and rigorous safety assessments, the dn1000 * 1.6MPa steel wire mesh skeleton polyethylene composite pipe was selected for its superior performance and reliability. Donghong's expertise played a pivotal role, with the project's total investment amounting to 66.484 million yuan, demonstrating our unwavering commitment to excellence.
At Shandong Donghong Pipe Industry Co., Ltd., we take immense pride in 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 the pinnacle of transportation solutions.
With our extensive expertise and years of transportation experience, we guarantee seamless delivery regardless of weather conditions, remoteness, or environmental challenges. Our comprehensive transportation plans ensure each shipment of our Reliable Srcp Tube for Water Transportation reaches its destination promptly and in pristine condition.
1. Does your product meet international standards?
Our state-of-the-art products proudly bear CE, BV, ISO, and Wars certifications, surpassing all standard specifications. Kindly provide us with the particular national standard you require, and we will confirm or conduct the necessary tests to meet your expectations.
2. What kind of services do you offer?
As a leading manufacturing factory, we offer an extensive array of services encompassing pipe products, pipe fittings, packaging, and shipping solutions. Our professional consulting division delivers top-notch project advice, comprehensive pipe system solutions, and design recommendations. Moreover, our engineering expertise enables us to provide pipeline contractor services, pipe repair, and complimentary maintenance guidance, ensuring seamless project execution.
3. Do you support OEM/ODM services?
Absolutely, our customization capabilities include materials, specifications, logos, packaging, and connection methods, tailored to your needs. Our seasoned team can also furnish bespoke solution suggestions for your specific projects, backed by successful case studies to ensure optimal outcomes.
4. What are your terms of payment?
We facilitate transactions via T/T or L/C at sight for your convenience.
5. How can you guarantee the quality of your goods?
We warmly invite our esteemed customers to visit our facilities for an in-depth inspection of our products. We also conduct thorough testing as per customer requirements before finalizing orders. Furthermore, we offer the option of dispatching samples for customer evaluation, ensuring product quality before initiating bulk production.
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