When choosing cryogenic tubing, the following key factors should be considered:
Material Selection
Pipe materials must be able to maintain their physical and chemical properties at the expected low temperatures, such as stainless steel, nickel alloys, aluminum alloys, etc.
The brittleness, toughness, and corrosion resistance of the material are also important considerations.
Temperature Range
Determine the minimum and maximum temperature ranges that the pipeline will face and select materials that will work within this range.
Pressure Requirements
The piping material is selected according to the working pressure of the system to ensure that it has sufficient pressure bearing capacity.
Corrosion Resistance
At low temperatures, some materials may suffer from faster corrosion, especially when the pipeline will be transporting corrosive media.
Thermal expansion and contraction
At low temperatures, the material undergoes significant thermal shrinkage, which can lead to stress or leakage in the piping system. Consideration needs to be given to how to manage and mitigate these impacts.
Installation & Maintenance
Choose piping materials and systems that are easy to install and maintain. For example, some materials may require special welding techniques or tools.
Insulation & Insulation
Cryogenic pipes often require insulation and insulation measures to reduce heat loss and avoid condensation. The right insulation materials and systems need to be selected.
Cost-effective
On the premise of meeting the technical requirements, consider the total cost of the piping system, including materials, installation, maintenance and other expenses.
System Design & Specifications
Ensure that the selected piping complies with relevant system design standards, industry codes, and safety requirements.
Suppliers & Manufacturers
Choose suppliers and manufacturers with good reputation and experience to ensure high-quality products and reliable after-sales service.
Environmental factors
Consider the environmental factors in which the pipeline is located, such as geographical location, climatic conditions, soil conditions, etc., which may affect the selection and installation of the pipeline.
Pipe Diameter & Length
The diameter of the pipe is determined based on the flow rate and pressure drop requirements. At the same time, consider the overall length of the pipeline, as it may affect the total cost, installation, and maintenance of the pipeline system.
Fluid Properties
Consider the properties of the fluid that the pipeline will transport, such as viscosity, density, chemical stability, etc., to ensure that the pipeline material is compatible with it.
Standby and redundant:
For critical applications, backup and redundancy of pipelines may need to be considered to ensure continuous operation of the system in the event of an emergency.
Future Expansion and Retrofits:
If system expansion or retrofitting is expected in the future, you need to choose piping materials and systems that are easy to upgrade and retrofit.
