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fv series vacuum-insulated metal hose

Swagelok® Vacuum-Insulated Metal Hose (FV Series)

FV series vacuum-insulated metal hose provides excellent insulation against extreme media temperatures.

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FV series vacuum-insulated hose provides two levels of insulating performance in a compact package, with the vacuum layer providing excellent insulation to extreme media temperatures. Additionally, the manufacturing process does not require a vacuum port, eliminating the primary source of vacuum degradation. Other features and benefits available with this new product launch include:

  • Vacuum-only insulation can be augmented with multi-layer insulation to address radiant heat transfer
  • Fully annealed condition eases hose routing through form-fit-and-stay capability
  • 316L stainless steel wetted surfaces are suitable for liquids and gaseous media
  • Wetted braze material meets AMS 4777 (nickel alloy)
  • Colored polyolefin sleeves allow for color-coding process lines


MaterialsCore: convoluted 316L SS
Reinforcement: 304L SS braid
End connections: 316 SS
Nominal Hose Sizes1/2 through 1 in.
Working PressuresVacuum to 600 psig (41 bar)
Temperature Range–425 to 1000°F (–253 to 537°C)
End Connectionsannealed tube stub ends

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