Description
The Pre Insulated Piping System is a pipe fitting which directly injects polyurethane thermal insulation material on the surface of the inner pipe and installs a protective layer on the outer shell layer, thus realizing thermal insulation, anticorrosion, waterproof, shockproof and fire prevention. It consists of an inner layer, a middle layer and an outer layer. The inner layer is a pipeline for transporting media, and the polyurethane foam layer is directly adhered to the surface of the inner layer pipeline. The middle layer is an anticorrosive and rigid coating or a mechanical protective layer, and the outer layer is a protective layer, which can be made of high-density polyethylene, glass fiber reinforced plastic and other materials. This kind of pipe fitting can be customized according to users' needs and used as insulation layer in different projects, which can ensure the heating temperature and reduce energy consumption at the same time.
Features
1. Thermal insulation material: This Pre Insulated Piping System adopts PEX foam thermal insulation material, which can effectively prevent heat loss and keep the temperature of water in the pipeline unchanged for a long time.
2. Multilayer foam: Compared with traditional pipe insulation materials, its technology is more advanced. Its pipeline insulation material is multi-layer foam, and these different layers are not bonded to the pipeline. This design makes the material more flexible and easy to connect, and it can also improve the reliability and durability of the pipeline.
3. Strict bending radius: The construction of the pipeline system is very convenient, and the bending radius of the pipeline is very strict. This design can effectively reduce the number of pipeline connections, reduce the loss of pipeline system, and improve the quality and efficiency of pipeline insulation.
4. Customized service: It can be customized according to the specific requirements and actual needs of customers. No matter the length, diameter and wall thickness of the pipeline, or the types and materials of thermal insulation materials, the pipeline can be customized according to the needs of customers. This advantage can meet the needs of different users, but also help users save time and cost.
5. Internal and on-site support team: Our team has professional internal and on-site support teams, which can provide users with various technical consultation and support services, including product selection, construction operation and quality inspection. At the same time, we can also respond quickly when users need it and provide users with comprehensive help and support.
Forming process
1. When the foam insulation layer is selected according to the customer's requirements or design, the forming process of pre insulated piping system can adopt normal pressure foaming or high-pressure foaming; When producing buried polyurethane insulated steel pipes with a medium temperature not exceeding 100 ° C, the "pipe in pipe" atmospheric pressure foaming process can be used; When the temperature of the conveying medium reaches 100 ° C or above, the foaming method of insulated steel pipes should adopt high-pressure foaming process.
2. After pre-treatment, positioning brackets and alarm lines (optional) should be placed equidistantly on the outer surface of the steel pipe, and a threading machine should be used to pass the steel pipe into the outer protective pipe (high-density polyethylene outer sleeve).
3. Fix the outer protective pipe, seal the circular end face, and reserve 15cm-22cm at both ends of the steel pipe.
4. Start the foaming machine to inject foam material into the annular space according to the requirements of the materials used according to the set time.
5. During high-pressure foaming, the method of central opening injection or end pouring injection is often used.
6. When there is an alarm line, the performance of the alarm line should be tested in advance to ensure that there are no short circuits or short circuits while meeting the resistivity design requirements.
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