| 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 % |
| Obturator Ratio: | 95% |
| Customization: |
|---|
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Composition structure:
Steel jacket steam insulation steel pipe insulation structure according to the sliding mode is divided into: internal sliding type and external sliding type
1.internal sliding type: the thermal insulation structure by the working steel pipe, aluminium silicate, damping layer, microporous calcium silicate, heat insulation layer, stainless steel fastening steel belt, aluminium foil reflective layer, polyurethane insulation layer, the jacket steel pipe, the outer corrosion layer.
2.Outside sliding type: the heat preservation structure consists of working steel pipe, glass wool heat preservation and insulation layer, aluminium foil reflective layer, stainless steel fastening belt, sliding guide bracket, air insulation layer, outer steel pipe, external anti-corrosion layer.
| Material | Vapour temperature | Thickness of steel plate | Suitable for use |
| Q235B | ≤300ºC | ≤20mm | Working steel pipe/ outer steel pipe |
| 20.16MN.Q345B | ≤350ºC | / | Working steel pipe |
| Overhead insulation pipe | Buried insulation pipe |
Shandong Donghong Pipe Industry Co., Ltd. (referred to as: Donghong Co., Ltd., stock code: 603856) is a leading engineering pipeline manufacturer based in Qufu, China, the hometown of Confucius. Specializing in functional and customized pipelines, our main business includes special pipelines for rainwater and sewage diversion, municipal areas, industrial and mining areas, and national key engineering projects. We have established an industrial ecosystem involving design institutes, financial institutions, port logistics, construction units, and other key partners. Our goal is to revolutionize pipeline systems globally, ensuring the safety and efficiency of pipeline transportation.
Shandong Donghong Pipe Industry Co., Ltd. boasts a team of over 200 R&D experts and holds more than 100 patents. Leveraging national technology R&D platforms like the National Enterprise Technology Center and the National CNAS Laboratory, Donghong is at the forefront of digitalizing, informatizing, and making pipelines intelligent. This leadership in pipeline engineering drives the industry forward and supports critical national projects such as the South-to-North Water Diversion and the Beijing-New Zealand Expressway. With a focus on innovation and quality, Donghong is dedicated to serving key strategic and livelihood projects, ensuring a reliable and efficient pipeline infrastructure.
1. Are your products compliant with international standards?
Our products have passed CE, BV, ISO, and Wars certificates, exceeding standard requirements. Feel free to specify any national standard you need, and we will ensure compliance through testing.
2. What services do you offer?
As a manufacturing factory, we provide pipe products, fittings, packaging, and shipping. Additionally, as a consultancy firm, we offer project advice, pipe system solutions, and design recommendations. We also provide pipeline contracting, repair services, and maintenance guidance.
3. Do you support OEM/ODM services?
Yes, we offer customization in materials, specifications, logos, packaging, and connection methods. Our expert team can provide tailored solutions for your projects, backed by successful case studies.
4. What are your payment terms?
We accept T/T or L/C at sight.
5. How do you ensure the quality of your products?
We welcome customers to visit our company and inspect our goods. Additionally, we conduct rigorous testing as per customer requirements before orders. Prior to bulk production, we provide samples for customers to conduct their own tests for product validation.
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