What materials are used in cold pipe insulation?

There are a variety of materials commonly used for cold pipe insulation, each with its specific application scenarios and performance characteristics. The following are some common cold pipe insulation materials and their characteristics:

Polyurethane foam insulation

Advantages: It has excellent thermal insulation performance and can effectively avoid the freezing of pipes. At the same time, it has good corrosion resistance and durability, and can be used for a long time in outdoor environments.
Temperature range: -196°C to 120°C

Rubber and plastic tube shell:

Advantages: good softness, elegant appearance, durable. It is suitable for air conditioning, medicine, textile, light industry and other industries.
Temperature range: -40°C to 120°C

Glass wool insulation:

Advantages: It has excellent thermal insulation performance and sound absorption performance, and can effectively prevent condensation of pipes. Glass wool is soft, easy to apply and adaptable to a wide range of pipe shapes.
Applicable temperature range: ≤454°C

Polyethylene foam insulation

Advantages: It has good thermal insulation performance and corrosion resistance, is easy to construct, and can adapt to various shapes of pipes.
It should be noted that the specific applicable temperature range of polyethylene foam insulation is not explicitly mentioned in the reference article, but it is generally suitable for insulation in low temperature environments.
When choosing cold pipe insulation materials, in addition to considering the thermal insulation performance, corrosion resistance and durability of the material, the following factors need to be

considered

The operating temperature and pressure of the pipe.
The environment in which the pipe is located (e.g., indoor, outdoor, wet or dry).
The size and shape of the pipe.
Budget and construction requirements.
To sum up, the selection of cold pipe insulation materials should be comprehensively considered according to specific application scenarios and needs. In practice, it may be necessary to combine the advantages and scope of application of different materials to achieve the best thermal insulation effect.