Since 1992, HL Cryogenics has specialized in the design and manufacturing of high-vacuum insulated cryogenic piping systems and related support equipment, tailored to meet diverse customer needs. We hold ASME, CE, and ISO 9001 certifications, and have provided products and services to many well-known international enterprises. Our team is sincere, responsible, and committed to excellence in every project we undertake.
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Vacuum Insulated/Jacketed Pipe
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Vacuum Insulated/Jacketed Flexible Hose
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Phase Separator / Vapor Vent
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Vacuum Insulated (Pneumatic) Shut-off Valve
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Vacuum Insulated Check Valve
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Vacuum Insulated Regulating Valve
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Vacuum Insulated Connectors for Cold Boxes & Containers
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MBE Liquid Nitrogen Cooling Systems
Other cryogenic support equipment related to VI piping — including but not limited to safety relief valve groups, liquid level gauges, thermometers, pressure gauges, vacuum gauges, and electric control boxes.
We are happy to accommodate orders of any size — from single units to large-scale projects.
HL Cryogenics’ Vacuum Insulated Pipe (VIP) is manufactured in accordance with the ASME B31.3 Pressure Piping Code as our standard.
HL Cryogenics is a specialized vacuum equipment manufacturer, sourcing all raw materials exclusively from qualified suppliers. We can procure materials that meet specific standards and requirements as requested by customers. Our typical material selection includes ASTM/ASME 300 Series Stainless Steel with surface treatments such as acid pickling, mechanical polishing, bright annealing, and electro polishing.
The size and design pressure of the inner pipe are determined according to the customer’s requirements. The size of the outer pipe follows HL Cryogenics’ standard specifications, unless otherwise specified by the customer.
Compared with conventional piping insulation, the static vacuum system provides superior thermal insulation, reducing gasification losses for customers. It is also more cost-effective than a dynamic VI system, lowering the initial investment required for projects.
The Dynamic Vacuum System offers a consistently stable vacuum level that does not degrade over time, reducing future maintenance requirements. It is particularly advantageous when VI piping and VI flexible hoses are installed in confined spaces, such as floor interlayers, where maintenance access is limited. In such cases, the Dynamic Vacuum System is the optimal choice.
