CRANE® CRYOFLO™ Vacuum Jacketed Rigid Piping

CRANE® CRYOFLO™ Vacuum Jacketed Rigid Piping (VJP) is a double-walled piping system with a vacuum space between the inner and outer pipes. This vacuum space acts as a thermal barrier that reduces heat transfer and prevents product boil-off, minimizing product loss and ensuring safety and quality. VJP offers a number of significant advantages over conventional piping systems for liquid cryogenic media.

Features And Benefits

  • Technological Breakthroughs: Using IT innovations to achieve best-in-class quote turnaround times for our products.
  • Lead Time: Market leading lead times thanks to our state-of-the-art manufacturing processes.
  • Reduced Heat Transfer: Minimized product loss with Multi-layer insulation and end connections such as bayonets and field joints.

Technical Details


  • Type: Stainless Steel Vacuum Jacketed Pipe
  • Body Styles: 300 Series Stainless Steel
  • End Connections: Bayonet, Field Joint, Mechanical Fitting
  • Pressure: Upto 150 PSIG
  • Inner Pipe Size: 1/2″, 1”, 1-1/2”, 2”, 3”, and 4” NPS


  • Fugitive Emission: Helium mass spec to 1×10^-9 cm^3/s and Pneumatic Pressure test to 1.1x the design pressure.
  • Outgassing Getter, Molecular Sieve & Multi-Layer Insulation for Static Vacuum
  • ASME B31.3 Certification
  • Pressure Drop, Heat Leak, and Thermal Contraction of the System
  • Internal G-10 Supports and Outer Pipe Supports


  • ASME B31.12: Hydrogen Piping & Pipeline
  • ASME B31.3: Process Piping
  • CGA G-4.15: Vacuum-Jacketed Piping in Liquid Oxygen Service
  • CGA G-5.6 – Hydrogen Pipeline Systems
  • AWS 2.4 Standard symbols for welding, brazing and non-destructive examination
  • AWS B2.1, ISO 15607, EN 1011-1: Specification for welding procedure and performance qualification
  • AWS D10.18 Pipe welding (stainless steel)
  • ASME B16.5: Pipe Flanges and Flanged Fittings
  • ASME B16.9 – Factory made Wrought & fabricated butt welding fittings
  • ASME B36.19M : Stainless Steel Pipe
  • ASME BPVC Section IX: Welding and Brazing Qualifications


  • ASME B31.12: Hydrogen Piping & Pipeline
  • ASME B31.3: Process Piping
  • AWS B1.10 & ISO 17035: Guide for nondestructive examination of welds
  • ASME BPVC Section V – Nondestructive Examination


  • Liquefaction
  • Storage
  • Transport and distribution of Cryogenic Hydrogen
  • Nitrogen Oxygen
  • Helium and other inert gases