CryoPipe® Technology

Composite cryogenic pipe engineered for system performance.

CryoPipe® is built from single polymer composite and high-performance thermoplastics, engineered to carry liquid nitrogen, LNG and liquid hydrogen where steel reaches its limits.

see the construction

The problem with steel at cryogenic temperature

At cryogenic temperatures, conventional stainless steel pipe becomes a limiting factor rather than a neutral choice of material. Corrugated steel increases friction and pressure drop along the line. Steel's thermal contraction at low temperature places stress on end connections and requires expansion loops that add length, weight and installed cost. Steel pipe is heavier to transport and typically requires on-site welding, which slows installation and introduces a point of failure at every joint.

For engineers specifying superconducting cable cryostats, LNG recirculation lines or liquid hydrogen fuel systems, these are not abstract material properties. They translate directly into pumping energy, maintenance frequency, installation time and system reliability over the asset's life.

The material system

Single polymer composite, built in layers

CryoPipe® is manufactured from single polymer composite (SPC), together with PEEK and PEI for higher-temperature or higher-performance applications, reinforced with carbon fibre where low thermal expansion is critical.

The pipe is built additively. A thermoplastic sheet is rolled into a cylindrical liner and continuously laser-welded to create a smooth, leak-tight bore with no internal liner joint. Carbon fibre reinforcement is applied for strength and pressure rating, followed by an outer composite skin, laser-welded for durability. Steel end connectors are factory-fitted and tested before the pipe leaves Southampton, so there is no on-site welding at installation.