Steam Pipe Insulation with Ppu Pipe, Tube and High Thermal Conductivity

• Application: Chemical Transport, Industrial Processing, Oil and Gas Distribution, Wastewater Management, Water Supply, Thermal Insulation
• certification: CE, ISO9001
• Connection Type: Flanged Joint
• Diameter: 90mm-955mm
• Material: Dhpe and Ppu
• Temperature Range: -20℃ to 80℃
• Model NO.: DH-The thermal insulation-BWGG
• Filling Density: 60-90 Kg/M3
• Foam Core Density: 68.9 Kg/M3
• Thermal Conductivity: 0.029 W/(M.K)
• Radial Compressive Strength: 0.42 MPa
• Water Absorption: 5.9 %
• Ate of Closed Hole: ≥90%
• Shear Strength: 149-195 Kpa , 170ºC, 1450h
• Transport Package: Standard Package
• Specification: 6m, 12m or Upon your request
• Trademark: DHPI
• Origin: Shandong, China
• HS Code: 3917390000
• Production Capacity: 50000000 Tons /Year

Product Description

Product Description

INSULATION PIPE SYSTEM FOR MINE: Experience unparalleled efficiency and reliability with Shandong Donghong Pipe Industry Co., Ltd.'s cutting-edge high-temperature PPU pipes. Specifically engineered for subterranean applications, our pipes come with pre-insulated systems that guarantee optimal thermal insulation and exceptional durability. These attributes make them the ultimate choice for mining operations. Trust the superior quality and advanced technology of our insulation pipe systems to significantly enhance the performance and longevity of your infrastructure.

Performance of outer guard pipe
Outer Diameter mm	Minimum wall thickness  mm	Outer Diameter mm	Minimum wall thickness  mm
90	3.0	365	7.2
110	3.0	400	7.8
125	3.0	420	8.0
140	3.0	450	8.8
160	3.0	500	9.8
180	3.5	550	10.8
200	3.9	560	11.0
225	4.4	600	11.7
250	4.9	630	12.3
280	5.4	655	12.8
315	5.4	710	13.5
325	6.4	760	13.9
335	6.6	850	15.7
355	7.0	955	17.6

Our Advantages

Our system features an innovative stent-free foaming platform, completely eliminating the stent effect notorious for causing significant heat loss. The outer sheath, crafted from a specialized, modified anti-static flame-retardant polyethylene material, is meticulously formed through a single spiral extruder extrusion process. This ensures a flawlessly seamless bond between the foamed insulation layer and the polyethylene layer, effectively preventing any delamination of the insulation pipe. The DHPI mining thermal insulation pipe stands unrivaled with its superior impact resistance, exceptional isolation properties, and remarkable corrosion resistance.

1. Working Steel Pipe: Expertly crafted from seamless steel pipe, spiral welded pipe, and straight seam welded pipe. Before insulation, our pipes undergo rigorous mechanical rust removal, achieving a pristine quality standard of no less than GB/T8923.1 Sa level 2.5.
2. Slepipe: Meticulously engineered with specially modified flame-retardant and anti-static polyethylene resin, processed using a single screw extrusion machine. This grants our pipes unparalleled impact resistance, outstanding isolation, and formidable corrosion resistance.
3. Polyurethane Insulation Layer: Our advanced technology injects modified flame-retardant polyurethane foam under high pressure to impeccably fill the gap between the casing and the working steel pipe. This creates an unrivaled insulation effect, characterized by minimal thermal conductivity, high compression strength, low water absorption, and an elevated closure rate.

1. Our revolutionary system eliminates the need for support structures, significantly reducing heat loss and entirely eradicating the 'support thermal bridge' phenomenon.
2. Boasting exceptional strength and superior toughness, our pipes are effortlessly welded and allow for convenient, hassle-free construction.
3. With minimal thermal conductivity and robust waterproof and corrosion resistance, our pipes are perfectly suited for direct burial in the ground or underwater applications.
4. Ensures effortless and seamless connection through flange or quick joint connections.
5. Designed for unparalleled longevity, our pipes offer an extended service life, capable of withstanding harsh environments ranging from -20ºC to 120ºC for over 30 years.

Connection Method

Versatile Connection Methods

Flange connection

Flexible socket connection

Comprehensive Demonstration of Welding Joints

Appliation Cases

Insulation steel pipes are indispensable in liquid and gas transmission pipe insulation projects across various sectors such as petroleum, chemical industries, central heating systems, heating networks, central air-conditioning ventilation pipes, and municipal engineering. Our high-temperature prefabricated direct-buried thermal insulation steel pipe stands out as a premier choice, offering exceptional thermal insulation performance, unparalleled safety and reliability, and notably reduced construction costs.

Company Profile

Shandong Donghong Pipe Industry Co., Ltd. (Donghong Co., Ltd., stock code: 603856) stands at the heart of Qufu, China, the esteemed birthplace of Confucius. Renowned as a top-tier engineering pipeline manufacturer, comprehensive service provider, and esteemed general contractor, our company excels across four primary categories: specialized pipelines for rainwater and sewage, municipal, industrial and mining sectors, and national key engineering projects. Donghong Co., Ltd. is revolutionizing the global pipeline industry by integrating design institutes, financial institutions, port logistics, construction units, and a network of upstream and downstream enterprises into a cohesive industrial ecosystem. Our mission is to lead with intelligent pipelines that enhance human life and ensure the continuous safety of pipeline transportation.

Boasting a robust team of over 200 R&D experts and over 100 patents, Donghong is a beacon of innovation. Supported by national technology platforms such as our enterprise technology center, CNAS laboratory, academician expert workstation, and post-doctoral workstation, we are pioneering the digitalization, informatization, and intelligentization of pipeline engineering. Our cutting-edge research and development set new industry standards and drive the evolution of the pipeline sector.
In November 2017, Donghong reached a historic milestone by being listed on the main board of Shanghai, making us the first Chinese company in engineered composite piping systems to achieve this prestigious recognition.

Outstanding Technical Research and Development Capabilities
Our state-of-the-art national CNAS laboratory is outfitted with advanced testing equipment, propelling the development of innovative products, materials, and connection techniques. This stringent testing protocol ensures our product quality is consistently stable and reliable, reflecting our steadfast commitment to excellence.

Certifications

Packaging & Shipping

Donghong has established strategic partnerships with over five elite 5A-level logistics companies, backed by extensive years of transportation expertise. Whether by automobile, railway, port, or shipping logistics, our multifaceted approach ensures seamless service regardless of challenging weather or remote locations. Our robust transportation strategy guarantees prompt delivery of every shipment to your site, providing you with unparalleled service efficiency and reliability.

FAQ

1. Does your product meet international standards?
Our products proudly surpass international standards, having earned CE, BV, ISO, and WAR certifications. Each specification exceeds the necessary criteria. Specify your required national standard, and we will validate or test it to confirm compliance.

2. What kinds of services do you offer?
As a leading manufacturing factory, we provide a wide array of pipe products, fittings, comprehensive packaging, and efficient shipping solutions. Our consultancy services include expert project advice, customized pipe system solutions, and specialized design recommendations. Furthermore, as an engineering-focused enterprise, we excel in pipeline contracting, professional repair services, and offer complimentary maintenance guidance, ensuring seamless operations for your projects.

3. Do you support OEM/ODM services?
Absolutely. We offer extensive customization options, including materials, specifications, logos, packaging, and connection methods. Our proficient team delivers tailored solutions for unique project requirements, with numerous successful cases exemplifying our superior service.

4. What are your terms of payment?
We accommodate payments via T/T or L/C at sight for your convenience.

5. How can you guarantee the quality of your goods?
We enthusiastically invite all customers to visit our facility and witness our product quality firsthand. We also conduct rigorous tests as per customer requests before finalizing orders. Moreover, we can provide pre-production samples for customer testing to ensure complete satisfaction and qualification before bulk production.