Dewar Flasks

CF Series

liquid cryogens
dewar flasks

One word can be used to describe this product line… “flexible.” This product can fulfill many different applications.
Historically, dewar flasks have been a lab tool. Today this product has found its way into the outer reaches of industry and many other technology sectors. Old-fashioned quality coupled with the latest techniques in thermal efficiency are Cryofab’s claim for each dewar flask manufactured.
Listed here are the many standard sizes of dewar flasks to choose from (PDF). This does not begin to scratch the surface as to the many different configurations that have been fabricated over the years.

Features of Dewar Flasks

  • Double-walled, stainless-steel construction
  • Multilayer insulation in the vacuum annulus
  • All welded construction
  • Sizes from 4.5" to 96" internal diameter
  • Depths to 20 feet
  • Applications include research, industrial and all technology sectors
  • One-year warranty on vacuum
  • Many custom options

Click here to see available sizes & specifications

Many different configurations available

Available dewar flask sizes & specifications

We can fabricate larger capacities to customer specifications.

See below for some of the available options.
Custom work is our specialty: See Dewar Flask - Common Customer Questions

customize liquid helium dewars

Customize it!

If you need it we can make it. Contact us to add any of these options to a standard CF dewar flask, or to work with our experts to design the perfect container for your needs. Large and small run manufacturing also available.

Call 1.800.426.2186 or fill out our online request form to start designing the perfect tank for your application.

  • cryogenic dewar flasks foam insulated lid

    Foam Insulated Lid
  • cryogenic dewar flasks lifiting lug

    Lifting Lug
  • cryogenic dewar flasks flanged top

    Flanged Top
  • cryogenic dewar flasks view port

    View Port
  • cryogenic dewar flasks legs

  • cryogenic dewar flasks caster-mounted

    Caster Mounted
  • cryogenic dewar flasks bottom drains

    Bottom Drain
  • cryogenic dewar flasks side inlets and outlets

    Side Inlets/Outlets
  • cryogenic dewar flasks flap down handles or rigid handles
    Flap Down Handles, Rigid Handles
  • cryogenic parts dipping basket

    Dipping Bucket