Reliable vacuum insulated piping systems designed for oxygen, nitrogen, and argon applications, helping ASU operators reduce heat leak, improve cryogenic efficiency, and achieve stable long-term operation.
VI Piping System has been widely used in Air Separation Plants. Compared with conventional piping insulation, the heat leakage value of VI Pipe is 0.05~0.035 times of conventional piping insulation.
HL Cryogenics has more than 30 years of experience in Air Separation Plant projects. Our Vacuum Insulated Pipe (VIP) is established to ASME B31.3 Pressure Piping code as a standard. Engineering experience and quality control ability to ensure the efficiency and cost-effectiveness of the customer's plant.
Related Products
Vacuum Insulated Pipe Series
Vacuum Insulated Valve Series
Piping System Support Equipment
Cryogenic Challenges in Air Separation Plants
Minimizing Heat Loss in Cryogenic Transfer
Air separation plants operate continuously at extremely low temperatures. Heat leakage through cryogenic pipelines can increase product evaporation and reduce system efficiency.
Maintaining Long-Term Vacuum Stability
Vacuum degradation can significantly affect cryogenic system performance. Our vacuum insulated piping systems are designed with high vacuum integrity and can be equipped with Dynamic Vacuum Pump Systems for long-term vacuum maintenance.
Complex ASU Pipeline Installation
Cryogenic systems require reliable flow control and phase management.
Our Vacuum Insulated Valve and Vacuum Insulated Phase Separator solutions help improve operational safety and stability.
Ensuring Safe Cryogenic Operation
Cryogenic systems require reliable flow control and phase management.
Our Vacuum Insulated Valve and Vacuum Insulated Phase Separator solutions help improve operational safety and stability.
Our Clients
Engineering Capability
| Parameter | Capability |
|---|---|
| Medium | LOX, LIN, LAR, LNG, LH₂, LHe |
| Temperature | Down to -269°C |
| Design pressure | Customised |
| Pipe size | DN10–DN600 |
| Standards | ASME, EN, ISO |
| Testing | Vacuum test, helium leak test, pressure test, etc. |
