Vacuum jacketed pipes


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Vacuum Barrier’s first automated liquid nitrogen piping system employed vacuum jacketed rigid piping. The limitation of rigid pipe and the increasingly sophisticated demands of industry led to the development of both dynamic and sealed bendable pipe  vailable in OHFC Copper and Stainless Steel. SEMIFLEX® systems boast the lowest cool down and steady state heat loss of any liquid nitrogen piping system available. The Triax Liquid/Vapor Separator and Vapor Vent enhancements deliver liquid nitrogen at low  pressure and in pure liquid condition.


  • Bendable pipe
  • Continuously pumped or sealed vacuum
  • Fast cool down
  • Easy to assemble
  • Wide range of terminations available
  • Available in stainless steel
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