The Steel Wire Mesh Skeleton Polyethylene Composite Pipe (SRTP/SRCP) represents a groundbreaking evolution in mining technology. This state-of-the-art pipe is imbued with a high-strength steel wire mesh skeleton, meticulously helically twisted and expertly molded. Constructed from specially modified flame-retardant and antistatic high-density polyethylene (HDPE), and bonded with high-performance adhesive resin, this pipe epitomizes a unique and potent fusion of materials. By harmonizing the superior qualities of both steel and plastic pipes, this formidable design excels in rigorous applications, including underground water supply, drainage, slurry spraying, gas extraction, and air pressure systems.
Polyethylene Raw Materials: The essential inner and outer polyethylene resin used in our coal mine applications is derived from flame-retardant and antistatic specially modified materials, including carbon nanotube (CNT) enhanced substances and permanent coloring agents. Engineered with our company's exclusive technology, these advanced materials amplify the mechanical attributes of the pipes, ensuring they not only adhere to but also surpass MT181 and MT558.1 standards, delivering performance that exceeds all expectations.
Enhanced Steel Wire: Our pipes employ copper-plated steel wire conforming to GB/T14450 standards, boasting an impressive tensile strength of 2050MPA. This remarkable specification far exceeds the standard requirement of 1850MPA, ensuring unparalleled durability and exceptional in-field performance.
Adhesive Resin: Our cutting-edge adhesive resin, developed using proprietary technology, provides unmatched adhesion to steel wire and outstanding process adaptability. This innovation ensures our pipes deliver exceptional reliability and durability, 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: 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.
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 3.5MPa, 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.
At Shandong Donghong Pipe Industry Co., Ltd., we are proud to operate a cutting-edge high-pressure pipe fittings factory. Our expertise lies in producing a diverse array of high-pressure engineering fittings that meet the highest standards. We also specialize in customization, crafting unique fittings tailored to your specific needs and operating conditions. Upholding the principle of achieving a flawlessly connected system, we are committed to delivering unmatched quality and precision in every product we create. Experience the excellence and innovation that define our brand.
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 ascended as a premier manufacturer of engineering pipelines, a proficient service provider in pipeline engineering, and a general contractor for comprehensive pipeline projects. Our diverse product portfolio spans four major categories: rainwater and sewage drainage pipes, municipal pipelines, industrial and mining pipelines, and pipelines for national key projects. Standing as a beacon of industry expertise and innovation, Donghong celebrated a landmark achievement on November 6, 2017, by being listed on the Shanghai Main Board, becoming China's first engineering composite pipeline manufacturer to achieve this distinction.
Donghong takes pride in its robust R&D capabilities, helmed by a team of over 200 dedicated research and development professionals and a portfolio boasting more than 100 patents. Utilizing 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 pioneering digitalization, informatization, and intelligence in pipeline engineering, leading the way in industry advancements.
Committed to national 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 Project, 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 fostering innovation, Donghong is dedicated to enhancing infrastructure and improving the quality of life through its unparalleled engineering expertise.
Experimental Verification
Key Raw Materials
At Shandong Donghong Pipe Industry Co., Ltd., we take immense pride in the binder resin used in our High Density Polyethylene Pipe. This resin is the cornerstone of our products, guaranteeing optimal stress transfer during high-pressure applications. Our cutting-edge raw material design and development platform allows us to meticulously refine the binder resin, ensuring unparalleled performance and seamless integration with our advanced processes and state-of-the-art equipment. This exceptional composite material's superior performance underscores our unwavering commitment to quality.
Plating is a crucial element in our product's durability, offering exceptional corrosion resistance and significantly enhancing the shear strength between steel wire and bonding resin. Our extensive data testing has shown that the choice of plating material significantly impacts shear strength. Tin bronze plating exhibited outstanding performance with an average shear strength of 20.69 MPa, compared to 11.42 MPa for brass. Consequently, our Reliable Srcp Tube for Water Transportation utilizes tin bronze-plated steel wire, establishing it as 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 represents a significant national investment in the salt chemical sector, specifically within the Xinjiang Lop Nur process pipeline. The pipeline's annual conveying capacity, exceptional pipe bending resistance, and stringent interface stability requirements demanded a tailored solution from Donghong's expert technical team. They meticulously designed and developed a customized non-standard product structure and interface program to meet the unique characteristics of the project. Donghong Pipeline Engineering Company took charge of the entire construction process, ensuring the pipeline functions with optimum efficiency.
Wet Copper Refining Project in Kazakhstan
Faced with the challenge of open-air transportation of highly corrosive copper sulfate media, Donghong employed its advanced high-pressure corrosion-resistant SRTP, Composite500 steel-plastic composite technology, and double-seal connection technology. This sophisticated approach provided a flawless solution for the corrosion-resistant transport of special media, meeting the project's demanding requirements.
"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 managed by the U.S. Boreali (Beijing) Pipeline Technology Co., Ltd. They undertook the intricate design task for the deep-sea landfill (DSTP) system. After thorough economic investment comparisons and safety assessments, the dn1000 * 1.6MPa steel wire mesh skeleton polyethylene composite pipe was chosen for its superior performance and reliability. Donghong's expertise contributed significantly, with the project's total investment amounting to 66.484 million yuan, underscoring our commitment to excellence.
At Shandong Donghong Pipe Industry Co., Ltd., we take immense pride in fostering enduring partnerships with premier logistics companies. Through meticulous planning, we've devised an advanced transportation model that harmoniously blends 'steam transportation + railroad transportation + port and shipping logistics.' This model ensures our clients receive unparalleled and efficient transportation solutions.
Drawing on our extensive expertise and years of experience in logistics, we guarantee flawless delivery regardless of weather conditions, remote locations, or environmental hurdles. Our meticulously crafted transportation plans assure that every shipment of our High Density Polyethylene Pipe with Abrasion and Chemical Resistance for Industry arrives punctually and in impeccable condition.
1. Does your product meet international standards?
Our products have proudly attained CE, BV, ISO, and Wars certifications, consistently surpassing standard requirements. Inform us of your specific national standard, and we will ensure compliance through meticulous verification or rigorous testing.
2. What kind of services do you offer?
As a premier manufacturing factory, we offer an extensive range of services including high-quality pipe products, superior fittings, robust packaging, and reliable shipping. Our expertise encompasses comprehensive project consulting, advanced pipe system solutions, and expert design recommendations. Additionally, we provide top-tier pipeline contractor services, proficient pipe repair, and complimentary maintenance guidance.
3. Do you support OEM/ODM services?
Absolutely! We excel in the customization of materials, specifications, logos, packaging, and connection methods. Our seasoned team is adept at proposing bespoke solutions for your projects, backed by an extensive portfolio of successful case studies.
4. What are your terms of payment?
We welcome payments via T/T or L/C at sight for your convenience.
5. How can you guarantee the quality of your goods?
We warmly invite customers to visit our company for a firsthand inspection of our premium products. Rigorous and thorough testing is performed in accordance with customer requirements before order placement. Additionally, we offer samples for customer testing to ensure product quality prior to initiating bulk production.
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